CN1379688A - Absorbent article with skin care composition - Google Patents

Absorbent article with skin care composition Download PDF

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Publication number
CN1379688A
CN1379688A CN99816743.6A CN99816743A CN1379688A CN 1379688 A CN1379688 A CN 1379688A CN 99816743 A CN99816743 A CN 99816743A CN 1379688 A CN1379688 A CN 1379688A
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CN
China
Prior art keywords
skin care
care compositions
skin
district
absorbent device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN99816743.6A
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Chinese (zh)
Inventor
布赖恩·F·格雷
美浓口良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Ltd
Procter and Gamble Co
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Procter and Gamble Ltd
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Filing date
Publication date
Application filed by Procter and Gamble Ltd filed Critical Procter and Gamble Ltd
Publication of CN1379688A publication Critical patent/CN1379688A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/84Accessories, not otherwise provided for, for absorbent pads
    • A61F13/8405Additives, e.g. for odour, disinfectant or pH control
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/02Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208Tissues; Wipes; Patches
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/18Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/34Oils, fats, waxes or natural resins
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • A61F2013/15365Dimensions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530437Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a part with elevated absorption means
    • A61F2013/530445Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a part with elevated absorption means by defining a target or acquisition or vulnerability zone

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Dermatology (AREA)
  • Materials Engineering (AREA)
  • Hematology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Birds (AREA)
  • Inorganic Chemistry (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

An absorbent article having a skin care composition is disclosed. The absorbent article has a body surface and a garment surface. The absorbent article comprises a topsheet disposed at the body surface, a backsheet disposed at the garment surface, and an absorbent core disposed therebetween. At least a portion of the absorbent article is provided with a skin care composition. The absorbent article has a preferential acquisition zone and a skin care zone. The preferential acquisition zone covers at least a portion of the vulva of the wearer when the absorbent article is applied on the wearer's body. The skin care zone is provided with the skin care composition of greater basis weight than the preferential acquisition zone.

Description

The absorbent device that has skin care compositions
Technical field
The present invention relates to absorbent device, include but not limited to feminine hygiene medicated clothing, diaper, training pants, adult-incontinence articles, diaper keeper as sanitary towel and panty-liners etc.Particularly, the present invention relates to scribble at the body contacting surface of articles for use the absorbent device of skin care compositions, this skin care compositions can be transferred on the wearers skin.
Background technology
The various absorbent devices that design for the body fluid that absorbs for example menstruation, urine and feces etc. are that people know.With regard to the women protected articles for use, prior art provided two kinds of fundamental types: for wearing the externally wearing type sanitary towel that develops around the perineal region, and in order to stop menstruation to flow out and be used in interior crossing type vagina plug in the vaginal canal from vaginal canal.The name that the name of authorizing people such as Weigner November 1 nineteen eighty-three is called No. 4412833 patent of the U.S. of " tampon inserter " and authorizes Jacobs November 8 nineteen eighty-three be called " tampon assembly " with the apparatus that is used for aseptic insertion No. 4413986 patent disclosure of the U.S. these class catamenial tampon articles for use.
Attempt the hybrid articles for use that the architectural feature of sanitary towel and catamenial tampon is combined in the single articles for use also are pushed out.Nineteen thirty-seven the JIUYUE name of authorizing Arone on the 7th be called No. 2092346 patent of the U.S. of " menopad " and name that JIUYUE in 1975 was authorized Denkinger on the 16th be called " feminine hygiene protection cover " No. 3905372 patent disclosure of the U.S. this class mix articles for use.The less mixing articles for use of other convex are called the sanitary towel of labia formula or interlabial, it is characterized in that having to small part being in the part among wearer's the vestibule and being in part outside wearer's the vestibule to small part.Nineteen fifty-three the December name of authorizing Jacks on the 15th be called No. 2662527 patent of the U.S. of " sanitary pad " and name that December in 1986 was authorized people such as Lassen on the 23rd be called " woman's sanitarg mapkin " No. 4631062 patent disclosures of the U.S. these class articles for use.Because the size of interlabial pad little and leak dangerous little, can make wearer's action extremely freely, removed a lot of inconveniences from.Past, people for produce a kind of can be together and can prevent the interlabial pad of some shortcoming of existing in each of these type articles for use at least and carried out many trials the advantages of catamenial tampon and sanitary towel.Nineteen fifty-nine, December authorized No. 2917049 patent of the U.S. of Delaney on the 15th, authorized No. 3420235 patent of the U.S. of Harmon on January 7th, 1969, authorize No. 4595392 patent of the U.S. of people such as Johnson on June 17th, 1986, authorized No. 5484429 patent of the U.S. of people such as Vukos on January 16th, 1996.The interlabial product that can buy on a kind of market is a FRESH ' N FTT  PADETTE interlabial pad, by Athena Medical Corp.of Portland, OR sells, these articles for use respectively on October 5th, 1976 and authorized the United States Patent (USP) the 3983873rd of Hirschman on November 27th, 1979 and No. 4175561 in description to some extent.
Although can absorb menstruation effectively basically, but still there is the uncomfortable part that needs solution as these articles for use of sanitary towel, tampon and Labial pad.For example, wearer's meeting is owing to underlying cause feels uncomfortable: (1) friction discomfort that articles for use friction wearers skin produces when using or using these articles for use; (2) be discharged into menstruation on the egative film to the adhesion of wearers skin; (3) surface of articles for use such as top flat are to the adhesion of wearers skin.Friction when applying articles for use stops articles for use suitably to insert/use, and causes uncomfortable.In addition, the friction of articles for use on wearers skin causes and scratches where it itches and/or skin irritation.The adhesion of menstruation makes the wearer that the sensation of filth, dirt be arranged.In addition, the enzyme and/or the microorganism encroach wearer's skin that contain in the adherent menstruation, therefore cause and scratch where it itches and/or skin irritation.The adhesion of top flat makes the wearer that sticking sensation be arranged.This has also hindered the air circulation in the skin, causes the excessive hydration of skin.
Therefore, wish on absorbent device, to apply the skin care compositions that brings the skin protection advantage, reducing wearer's discomfort, or solve the dermatosis problem that wearable and usable absorptive article brought.Skin care compositions is applied on the body contacting surface of absorbent device, makes skin care compositions to transfer on the wearer's body from absorbent device by contact.The major part of body contacting surface is the end face of absorbent device normally, body excretions such as the urine of passing through with absorption or menstruation.Therefore, so many skin care compositions is applied to has hindered body excretions on the skin contact surface and absorbed by the absorbent article core of absorbent device.
Therefore, need a kind of absorbent device, can be when giving wearers skin with the skin protection advantage absorbing bodily Excreta effectively.
Summary of the invention
The present invention relates to a kind of absorbent device with skin care compositions.This absorbent device has body surface and medicated clothing surface.Absorbent device comprises the top flat that is arranged on body surface, is arranged on the egative film on medicated clothing surface and absorbent article core between the two.At least a portion of absorbent device has skin care compositions.Absorbent device has preferentially to obtain to be distinguished and the skin protection district.When this absorbent device is applied on the wearer's body, preferentially obtain the part that the district covers wearer's pudendum at least.The skin protection district has skin care compositions, and it is quantitatively greater than preferentially obtaining the district.
Description of drawings
Though description of the present invention protects the claims that constituted theme of the present invention as ending to particularly point out and to explicitly call for,, can believe, can more be expressly understood the present invention by description below in conjunction with accompanying drawing.In the accompanying drawing:
Fig. 1 is the absorbent device according to sanitary towel of the present invention form;
Fig. 2 is the sectional elevation along the 2-2 line intercepting of sanitary towel shown in Figure 1;
Fig. 3 is the sectional elevation along the core that passes through a flap of the 3-3 line intercepting of Fig. 1;
Fig. 4 is the plane graph that the absorbent device that preferentially obtains district and skin protection district example is shown;
Fig. 5 is the plane graph that the absorbent device that preferentially obtains district and other example of skin protection district is shown;
The curve of Fig. 6 for concerning between the shear stress of an example of skin care compositions and the viscosity.
The specific embodiment
All lists of references of quoting as proof are all quoted it in full as a reference at this.Quoting and not meaning that of any list of references determines that it can be used as the background technology of invention required for protection.
" comprise " and mean and to add other element (one or more) and the step (one or more) that does not influence final result.This term included term " by ... constitute " and " basically by ... formation ".
Except as otherwise noted, all percentage ratios, ratio and ratio all are by weight calculation as used herein.
A. absorbent device
" absorbent device " refers to herein and absorbs and hold the bodily exudate apparatus of (as, urine), and is meant more specifically and places on the wearer's skin to absorb and to hold the apparatus of the various ejections of discharging from health.Term " disposable " is used herein to description not to be needed after once using to wash or adopts other modes to recover or be re-used as the absorbent device that absorbent device uses.The example of disposable absorbent article comprises feminine hygiene medicated clothing as sanitary towel and panty-liners, diaper, adult-incontinence articles, diaper keeper, training pants etc.
But disposable absorbent article generally includes the top flat of transflective liquid, and bonded liquid-tight egative film of top flat and the absorbent article core between top flat and egative film.The arbitrary independent synusia of disposable absorbent article, its parts (comprising top flat, egative film, absorbent article core) and these parts all has body surface and medicated clothing surface." body surface " herein refer to towards or the articles for use that wear near wearer's body or the surface of parts, and " medicated clothing surface " is a relative side, when wearing disposable absorbent article, its towards or near wearer's underwear.
" body contacting surface " at this used term absorbent device is one or more surfaces of any articles for use parts, its a certain moment contact wearer in the process of wearing.Body contacting surface includes, but not limited to each several part, flap, leg cuff, lumbar region, lateral plate, fastening tongue piece of top flat etc., and they in use contact the wearer.
Disposable absorbent article also preferentially obtains the district and have a skin protection district on body contacting surface having on the body surface.Term " preferentially obtains the district " and refers to the preferred excremental zone of absorbing bodily on body surface herein.Preferentially obtain the district and can have skin care compositions to give wearer's skin protection advantage.Term " skin protection district " refers to the zone on the body contacting surface herein, and it is given the skin protection advantage to the wearer by the transfer that is applied to the skin care compositions in the skin protection district.The skin protection district can the absorbing bodily Excreta.
Absorbent article core, top flat, the stock footage that is used for disposable absorbent article briefly discussed in following description, although disposable absorbent article needn't have above-mentioned all parts.Be appreciated that these parts of the specific absorbent device that this generalized description is applicable to shown in Fig. 1-3 and further specifies below, and these parts of other disposable absorbent article of general description in this article.
Generally speaking, absorbent article core can absorb or keep liquid (as, menstruation, urine and/or other body excretions).Absorbent article core is preferably compressible, applying, non-stimulated to wearer's skin.Absorbent article core can manufacture multiple size and dimension (as, rectangle, ellipse, hourglass shape, "T"-shaped, Os Canitis shape, asymmetric shape etc.).Absorbent article core can comprise the multiple liquid hygroscopic material that is used in usually in the absorbent device, as the pulverizing wood pulp of so-called air felt.Other suitable hygroscopic material example that is used for absorbent article core comprises: become thing altogether; Chemicosolidifying, remodeling or cross-linked cellulosic; Synthetic fibers as curling polyester fiber; Peat bog; Thin paper comprises thin paper wrap sheet and thin paper lamination; The moisture absorption foam; The moisture absorption sponge; The superabsorbent polymer; The moisture absorption colloidal materials; The combination of other any equivalent material or material, or their mixture.
The configuration of absorbent article core and structure also can be change (as, to such an extent as to absorbent article core can have different caliper zones and/or profile is thicker at the center; Hydrophilic gradient; Absorption component gradient, superabsorbent gradient; Perhaps lower average density and lower average quantification area, as obtain the district; Perhaps can comprise one or more synusia or structure).Yet total hygroscopic capacity of absorbent article core should be compatible with the expectation purposes with the design (calculated) load of diaper.In addition, the size of absorbent article core can change to adapt to different purposes with wettability power, as diaper, incontinence pad, liner, standard sanitary towel and overnight hygienic band, and the different wearers of adaptation from adult to baby.
Absorbent article core comprises that other is used in the hygroscopic part in the absorbent device usually, as shop bisque, absorption or securing layer or the auxiliary top flat in order to improve wearer comfort.
Top flat is preferably submissive, soft-touch and non-stimulated to wearers skin.In addition, top flat is transflective liquid (as menstruation and/or a urine), makes liquid penetrate its thickness at an easy rate.Suitable top flat can be with material manufacture widely, such as weaving and non-woven material (as, the nonwoven web sheet of fiber); Polymeric material is as porose shaping thermoplastic film, apertured plastic film and hydroforming thermoplastic film; Porous foam; Reticulated polymer foam; The weblike heat plastic films; With the thermoplasticity scrim.Suitable weave with non-woven material can comprise natural fiber (as, wood or cotton fiber), synthetic fibers (as, the polymer fiber of polyester, polypropylene or polyethylene fibre) weave or the nonwoven web sheet the perhaps combination of natural fiber and synthetic fibers.If top flat comprises the nonwoven web sheet, then width of cloth sheet is by the techniques well known in the art manufacturing.For example, width of cloth sheet can be spunbond, carded, wet-laying, melt and spray, water law is interlacing or the combination of said method.
Egative film be liquid-tight (as, menstruation and/or urine) and preferably make by thin plastic, although other flexible impenetrable liquid material also can use." flexibility " herein refers to submissive and is easy to general shape and the corresponding to material of profile with human body.Egative film prevent to absorb be contained in absorbent article core in the Excreta article getting wet and contact with absorbent device, as sheet, underwear, nightwear and underwear etc.Egative film comprise weave or non-woven material, such as the polymeric film of polyethylene or polypropylene thermoplastic thin film, perhaps as the composite of the non-woven material of thin film coated.Suitable egative film is the polyethylene film of the about 0.012mm of thickness (0.5mil) to about 0.051mm (2.0mil).Exemplary polyethylene film is by Clopay Corporation ofCincinnati, and OH produces, and product are called P18-0401; And by Tredegar Film Products of TerreHaute, Indiana produces, and product are called XP-39385.Egative film can also carry out embossing and/or not have optical processing to form the more seemingly outward appearance of cloth shape.In addition, egative film can allow steam to overflow from absorbent article core (that is, egative film is a breathable), and prevents that still effluent from passing through egative film.The size of egative film is determined by the size and the selected appropriate absorbent article construction of absorbent article core.
Egative film and top flat are respectively adjacent to the medicated clothing surface and the body surface location of absorbent article core.Absorbent article core preferably is connected with any and top flat in the connecting device well known in the art, egative film or both.Yet, it is contemplated that following embodiment of the present invention, wherein some part of whole absorbent article core is not connected with top flat or egative film, or with neither be connected.
For example, top flat and/or egative film can be attached on the absorbent article core or mutually combine with suitable ten thousand formulas well known in the art.Comprise by directly element being fixed to another element directly links to each other element with another element configuration at this used term " combination "; With next be fixed to another element by element being fixed to middleware, middleware, and make interelement ground connection be connected to the configuration of another element; And an element and the integrally formed configuration of another element, the i.e. configuration that element is the part of another element basically.Egative film and/or top flat can pass through even successive adhesive layer, figuratum adhesive layer, or the arrangement of binding agent single line bar, helix or point is attached on the absorbent article core or interfixes.Have been found that gratifying binding agent by H.B.Fuller Company of St.Paul, Minnesota produces, product HL-1258 by name or H-2031.Connecting device preferably includes the open patterns network of binding agent silk, as disclosed in the United States Patent (USP) 4573986 of authorizing people such as Minetola on March 4th, 1986.The exemplary connected mode of the open pattern network of binding agent silk comprises that several bend to the lines of the binding agent silk of spiral pattern, shown in the apparatus and method in the following patent: authorized the United States Patent (USP) 3911173 of Sprague.Jr. on October 7th, 1975; Authorized people's such as Zwieker United States Patent (USP) 4785996 on November 22nd, 1978; And on June 27th, 1999 authorize the United States Patent (USP) 4842666 of Werenicz.Above-mentioned patent is incorporated herein by reference.Another kind of scheme is that connected mode can comprise hot adhesion, pressure bonding, ultrasonic bonding, dynamic power machine bonding or any other the suitable connected mode as known in the art or the combination of these connected modes.
Skin care compositions is applied at least a portion of absorbent device.Skin care compositions can be applied at least a portion of body contacting surface and/or at least a portion of body surface.Preferably, skin care compositions should be applied to the skin protection district, reducing dermatosis and/or wearer's sense of discomfort, and provides the advantage of skin protection.The amount that is applied to the skin care compositions in skin protection district is chosen to be that the skin protection district all transmits the advantage of skin protection during wearable and usable absorptive article whole.Skin care compositions can be applied to a plurality of skin protections district of absorbent device.The amount of skin care compositions can be different between each district.
Skin care compositions also can be applied to preferentially and obtain in the district.Yet, skin care compositions is applied to preferentially obtains the district and can reduce and preferentially obtain district's absorbing bodily excremental performance.Therefore, the amount that is applied to the skin care compositions that preferentially obtains the district will carefully be selected, can reach balance to the skin protection advantage of preferentially obtaining district's transmission and between by the hygroscopicity of preferentially obtaining the district by applying skin care compositions.Preferentially obtain in the district and can not have skin care compositions.
Skin care compositions can be applied on the whole body contacting surface, comprises the skin protection district and preferentially obtains the district.In this case, consider preferentially to obtain the characteristics (that is, obtaining body excretions effectively) in district and the characteristics in skin protection district (that is, transmitting the skin protection advantage), the skin protection district has quantitatively greater than the skin care compositions that preferentially obtains the district.Skin care compositions is different between each district in the amount in skin protection district, needs only quantitative greater than the skin care compositions that preferentially obtains district's part that at least one skin protection district that should transmit the skin protection advantage has.
In addition, if desired, skin care compositions can be applied to the medicated clothing surface of absorbent device.Skin care compositions can apply with any suitable configuration, as a plurality of bands, and many waves, a plurality of points etc.The details of skin care compositions will be described in detail belows.
Fig. 1 shows the preferred embodiment of absorbent device of the present invention.Shown in Figure 1 is sanitary towel, and it is one type and the outer wearer's pudendum that is used for of absorbent device.As shown in Figure 1, sanitary towel 20 preferably has 22 and two optional flaps 24 of a moisture absorption apparatus (or title " main part ").Sanitary towel 20 has two surfaces, i.e. body-facing surface or " body surface " 20A and medicated clothing surface 20B.Sanitary towel 20 shown in Figure 1 is observed from its body surface 20A.Body surface 20A often wears into contiguous wearer's health.Medicated clothing surface 20B often is placed to the underwear of contiguous wearer when wearing sanitary towel 20.In the embodiment shown in fig. 1, " body contacting surface " comprises body surface 20A.
Sanitary towel 20 has two centrages, i.e. a main longitudinal centre line L and a main transverse centerline.Term used herein " vertically " refers to line, axle or the direction in sanitary towel 20 and plane vertical plane rough alignment (for example being similar to parallel), when wherein said vertical plane is worn in sanitary towel 20 with the wearer that stands to being divided into left and right sides health two halves.Term used herein " laterally " or " side direction " are interchangeable, refer to be arranged in sanitary towel 20 usually perpendicular to line, axle or the direction on the plane of longitudinal direction.
The main part 22 of sanitary towel 20 shown in Figure 1 is the part that does not have flap 24 of sanitary towel.Main part 22 has the horizontal edge or the end limit (or " end ") 28 of 26, two each intervals of longitudinal edge of two each intervals, and they have formed the periphery 30 of main part together.Main part 22 also has two petiolareas, and they are labeled as first petiolarea (that is proparea) 32 and second petiolarea (that is back zone) 34.Central area 36 is between petiolarea 32 and 34.Petiolarea 32 and 34 begins 1/8 to 1/3 of the about main part length that stretches out from the limit of central area 36 in the vertical.The United States Patent (USP) 4,690,680 that JIUYUE in 1987 was authorized Higgins on the 1st has the detailed description of the characteristic of the central area of pair sanitary towel and two petiolareas.
The main part 22 of sanitary towel 20 can have all thickness, comprises thicker, intermediate gauge, thin or even very thin (or " ultra-thin ").As the thickness of authorizing " ultra-thin " sanitary towel 20 of describing in the United States Patent (USP) 4,950,264 and 5,009,653 of Osborn is preferably approximately less than 3 millimeters.The embodiment of sanitary towel 20 shown in the drawings will be as the example of ultra-thin sanitary towel.The main part 22 of sanitary towel 20 also can be more flexible, thereby more comfortable concerning the wearer.But should be appreciated that shown sanitary towel only is an embodiment, the absorbent device that the invention is not restricted to this type or only have the particular configuration shown in the accompanying drawing.
Fig. 2 shows the individual components of the main part 22 of sanitary towel 20.The main part 22 of sanitary towel 20 preferably has at least three main parts.But these main parts comprise top flat 38, liquid-tight egative film 40, the absorbent article core 42 between top flat 38 and egative film 40 of transflective liquid.Optionally, absorbent article core 42 can comprise other parts such as collecting part 44.Collecting part 44 can be the independently parts between top flat 38 and absorbent article core 42, perhaps can be the part of compound top flat or the part of absorbent article core 42.
Sanitary towel 20 have preferentially obtain the district and the skin protection district.Fig. 1 shows the example of preferentially obtaining district 25 and skin protection district 27.Preferentially obtain the district and 25 roughly be positioned at the center of sanitary towel 20, preferentially obtain district 25 and comprise sanitary towel 20 longitudinally at least a portion of centre line L and at least a portion of center 36 thereby make.Skin protection district 27 roughly is positioned at a part of preferentially obtaining district's 25 peripheries, preferentially obtains at least a portion of distinguishing 25 horizontal or vertical napkin outside 20 thereby skin protection district 27 is comprised.The suitable configuration of preferentially obtaining district 25 includes, but is not limited to ellipse, orbit-shaped or circle.Perhaps, preferentially obtain district 25 and can be rectangle, triangle or polygon, or be suitable for obtaining body fluid effectively with source at body fluid as any other shape of preferentially obtaining the district.Skin protection district 27 can be the remainder that preferentially obtains district 25 sanitary towel 20 in addition.Yet skin protection district 27 preferentially obtains laterally and/or the vertically part of the sanitary towel 20 in the outside of district 25.In the embodiment shown in fig. 1, preferentially obtain district 25 for oval and roughly be positioned at the horizontal and vertical center of sanitary towel 20.Preferentially obtaining the oval-shaped major axis in district 25 is arranged to align with the longitudinal centre line L of sanitary towel 20.Skin protection district 27 is positioned at first petiolarea 32 and second petiolarea 34.
Preferentially obtain district 25 and preferably be in the certain location relation with respect to the specific part of common sedimentary zone of body fluid in the sanitary towel 20 and wearer's body discharge body fluid.Therefore, preferentially obtain district 25 be positioned at the body fluid discharge point near, thereby can obtain most of body fluid apace at their contact area.Preferably, when sanitary towel is applied on the wearer's body, preferentially obtain at least a portion that district 25 covers wearer's pudendum.Preferentially obtaining district 25 needn't contact with this part of wearer's pudendum.Yet, preferably contact this pudendum part and directly absorb with the body fluid that wearer's body is discharged and preferentially obtain the district.
Preferentially obtain district 25 and can cover the some parts of wearer's nympha inner surface, be engaged between wearer's nympha inner surface thereby make preferentially to obtain to distinguish.Preferentially obtain district 25 and can cover nympholabial all inner surfacies of wearer basically, until the bottom surface of contact and covering wearer vestibule.Preferentially obtain the some parts that district 25 can cover wearer's nympha outer surface.Preferentially obtain the some parts that district 25 can cover nympholabial inner surface of wearer and outer surface.Preferentially obtain the part that district 25 can cover wearer's labium majus surface.
Sanitary towel 20 accounts for being preferably greater than of 20 absorb body fluids of sanitary towel or equals 50% by preferentially obtaining district's 25 body fluid that obtain, preferably more than or equal to 60%, more preferably more than or equal to 70%.Preferably, when sanitary towel 20 was positioned at correct position with respect to wearer's body, sanitary towel 20 obtained nearly all body fluid by preferentially obtaining district 25.Because body fluid discharges of shoving sometimes, preferentially obtain and distinguish 20 and should be able to obtain body fluid fast and be transferred on the element of sanitary towel 20 from wearer's body, transfer to hygroscopic part 32 as body fluid flow dynamic resistance preferably with minimum.
In an embodiment shown in Figure 1, preferentially obtain district 25 for oval.The size of preferentially obtaining district 25 is enough to cover wearer's pudendum.Preferentially obtain district's longitudinal length of 25 and be less than or equal to about 120mm, preferably be less than or equal to about 110mm, more preferably be less than or equal to about 100mm, and more than or equal to about 20mm, be preferably greater than or equal about 30mm, more preferably more than or equal to about 40mm.Preferentially obtain district's transverse width of 25 and be less than or equal to about 80mm, preferably be less than or equal to about 70mm, be more preferably and be less than or equal to about 60mm, and more than or equal to about 10mm, be preferably greater than or equal about 20mm, more preferably more than or equal to about 30mm.
The flexibility of preferentially obtaining district 25 can be so good, keeps lasting contacting to such an extent as to preferentially obtain district 25 with the part on wearer's nympha surface.The contact that continues guarantees that preferentially obtain district 25 in the life cycle of sanitary towel does not obtain body fluid with leaking, or it is minimum to leak into the body fluid that preferentially obtains outside the district 25.
The skin care compositions that is applied to sanitary towel 20 centers 96 is tending towards reducing sanitary towel and the adhesion of wearers skin at sanitary towel's 20 cores (corresponding wearer's body position around pudendum).
When sanitary towel 20 was positioned at the tram with respect to wearer's body, skin protection district 27 preferably was in the certain location relation with respect to the position of not discharging usually on zone that does not deposit body fluid in the sanitary towel 20 usually and the wearer's body.The purpose in skin protection district 27 is to be applied to the skin care compositions in skin protection district 27 by transfer and the wearer to be provided the advantage of skin protection.
The skin protection district 27 of sanitary towel 20 can cover at least a portion on wearer's labium majus surface.Skin protection district 27 can cover all surface of wearer's labium majus.In addition, the skin protection district can cover the part on the outer wearer's body surface of nympha.When preferentially obtaining 25 parts that cover wearer's nympha surface in district, skin protection district 27 can extend in the nympholabial part of wearer (although this is not preferred).
When sanitary towel 20 is positioned at the tram with respect to wearer's body, skin protection district 27 not with wearer's body on discharge body fluid part directly contact.Body fluid is not deposited in the skin protection district 27 usually.This has reduced body fluid and has absorbed chance in the hygroscopic part 32 in skin protection district 27.Therefore, skin care compositions can be applied to skin protection district 27 and need not to sacrifice the hygroscopicity of body excretions.
Fig. 4 and Fig. 5 show the example in skin protection district.In Fig. 4, preferentially obtain the central authorities that district 25 is positioned at body surface.Skin protection district 27 comprises in the remainder that preferentially obtains district 25 body contacting surface in addition.Perhaps, as shown in Figure 5, the skin protection district can be all the other parts of preferentially obtaining district 25 body contacting surface in addition.Preferably, the skin protection district comprises at least one that select from organize down: preceding skin protection district 102, skin protection district, back 104, peripheral skin protection district 106, flap skin protection district 108.Preferably, the skin protection district comprises above-mentioned all parts.
Preceding skin protection district 102 comprises at least a portion of sanitary towel's 20 forward part 32.Preceding skin protection district 102 is the parts that contact with wearer's body around pubes.Before skin protection district 102 be applied to by transfer before in the skin protection district 102 skin care compositions and provide the skin protection advantage for the wearer.For example, be applied to before the skin care compositions in skin protection district 102 reduce scratching where it itches that forward part 32 in sanitary towel 20 produces.
Back skin protection district 104 comprises at least a portion of sanitary towel 20 rear sections 34.Back skin protection district 104 is the parts that contact with wearer's body around anus or perineum.Back skin protection district 104 is applied to the skin care compositions in the skin protection district, back 104 and provides the skin protection advantage for the wearer by transfer.For example, the skin care compositions that is applied in the skin protection district, back 104 reduces the adhesion of sanitary napkin topsheet to wearer's body.
Periphery skin protection district 106 comprises at least a portion of sanitary towel 20 peripheral parts adjacent with periphery 30.Preferably, peripheral skin protection district 106 comprises preceding peripheral part 110 and the rear perimeter edge part 112 that all contacts with wearer's body.Usually, preceding peripheral part 110 and rear perimeter edge part 112 because top flat 38 and egative film 40 this in conjunction with and hardening.Hard preceding peripheral part 110 and rear perimeter edge part 112 be because the wearer's body position that rubs does not feel like oneself the wearer, as scratch where it itches and/or abrade.By densification, then above-mentioned situation is more obvious by the mixing of heating, pressurization or these methods when top flat 38 and egative film 40.Periphery skin protection district 106 is applied to the skin care compositions in the peripheral skin protection district 106 and provides the skin protection advantage for the wearer by transfer.For example, be applied to skin care compositions in the peripheral skin protection district 106 and reduced wearer's sense of discomfort of bringing owing to the peripheral part friction wearer's body of sanitary towel 20, as scratch where it itches and/or abrade.
Flap skin protection district 108 comprises at least a portion of sanitary towel's 20 flaps.Flap skin protection district 108 comprises the part (below will describe in detail) of the flap 24 that is positioned at flap 24 near side (ns)s 60 lateral outer side and is positioned at the part of main part 22 of the horizontal inboard of flap 24 near side (ns)s 60.Preferably, flap skin protection district 108 is included in the flap folded part that flap 24 is folded when using sanitary towel 20.Flap skin protection district 108 is applied to the skin care compositions in the flap skin protection district 108 by transfer and provides the skin protection advantage for the wearer.For example, be applied to skin care compositions in the flap skin protection district 108 and reduced to wear sense of discomfort, as scratch where it itches and/or abrade owing to what the flap folded part friction wearer's body of sanitary towel was brought.
Other skin protection district also is possible.If sanitary towel 20 longitudinally side 26 has closing in, the skin protection district can comprise the closing in surface of handling with skin care compositions.In addition, the skin protection district can also comprise the part on the sanitary towel 20 medicated clothing surfaces of handling with skin care compositions.
The top flat 38 that is specially adapted to sanitary towel 20 includes the hole forming thin film.Porose form film is preferred as top flat because they can see through body excretions, and if hole forming suitable, can reduce liquid and return the possibility of oozing and soaking into wearer's skin again.Like this, it is dry and comfortable that surface form film and Body contact keeps, thereby the health that has reduced the wearer pollutes, and makes it to feel more comfortable.Describe in the suitable form film patent below: the name that December in 1975 was authorized Thompson on the 30th is called the United States Patent (USP) 3,929,135 of " having taper absorbent structure capillaceous "; The name of authorizing people such as Mullane April 13 nineteen eighty-two is called the United States Patent (USP) 4,324,246 of " disposable absorbent article with antifouling top flat "; The name of authorizing people such as Radel August 3 nineteen eighty-two is called the United States Patent (USP) 4,342,314 of " the elastoplast wire side that presents the like fibrous characteristic "; The name of authorizing people such as Ahr on July 31st, 1984 is called the United States Patent (USP) 4,463,045 of " the macroscopic view expansion three-dimensional plastic wire side that presents mat surface and cloth shape sense of touch "; The name of authorizing Palumbo on October 25th, 1988 is called the United States Patent (USP) 4,780,352 of " covered structure of moisture absorption nursing hygienic article and the absorbent device with this structure "; The name of authorizing Baird on April 9th, 1991 is called the United States Patent (USP) 5,006,394 of " multilayer polymeric thin film "; And the name of authorizing people such as Ouellette May 31 nineteen ninety-five is called the U.S. Patent application 08/442,935 (the PCT publication number is WO96/00548, and open day is on January 11st, 1996) of " the liquid transfer face that presents the surface energy gradient ".
In a preferred embodiment, top flat 38 is for according to the United States Patent (USP) 4,342,314 of authorizing people such as Radel with authorize the porose form film that people's such as Ahr United States Patent (USP) 4,463,045 is made, and this top flat is by Procter﹠amp; Gamble Company of Cincinnati, OH sells as the DRI-WEAVE top flat in sanitary towel.This apertured film is preferably Terre Haute, and the production number of the Tredegar film product of IN is the product of X-5652.In the preferred embodiment, when being used to form the resin of apertured film, preparation preferably has surfactant used herein.
In a preferred embodiment of the invention, the body surface of top flat 38 is hydrophilic, thereby liquid is with the easier top flat that passes through.If top flat is made by hydrophobic material, then at least the upper surface of top flat be processed into hydrophilic, thereby make liquid more promptly penetrate top flat.Reduced the possibility that menstrual fluid flows out top flat rather than flows into absorbent article core and be absorbed like this.The body surface usable surface activating agent of top flat 38 is handled and is made it to become hydrophilic.Following patent has been described the appropriate method of handling top flat with surfactant: the United States Patent (USP) 4,950,254 of authorizing Osborn; The name of authorizing people such as Reising on January 29th, 1991 is called the United States Patent (USP) 4,988,344 of " absorbent device with multilamellar moisture absorption layer "; The name of authorizing Reising on January 29th, 1991 is called the United States Patent (USP) 4,988,345 of " absorbent device with fast Absorption absorbent article core ".
The egative film 40 that is specially adapted to sanitary towel 20 is about the polyethylene film of 0.012mm (0.5mil) to about 0.051mm (2.0mils) for thickness.Suitable stock footage is as being available from ClopayCorportaion of Cincinnati, and the production number of Ohio is the product of 18-1401.Suitable breathable backsheet material is the United States Patent (USP) 3 as authorizing Thompson that uses conversely, 929,135 described apertured film laminations, thereby taper capillaceous than wicket towards absorbent article core 42, and absorbent article core 42 is laminated to the United States Patent (USP) 4 as Exxon with boning, on 777,073 microporous membranes of describing.
The absorbent article core 42 that is specially adapted to sanitary towel 20 comprises that multiple spot bonding air becomes the net non-woven material.In the preferred embodiment, described multiple spot bonding air becomes the net non-woven material to comprise about 52% cellulose fibre, about 20% bicomponent fibre, about 25% superabsorbent form of hydrogels material (or sucting wet gel material) granule, and about 3% latex.Absorbent article core 42 preferably includes the particulate 125g/yd that quantitatively is about of sucting wet gel material 2(about 150g/m 2).Preferably, this multiple spot bonding air becomes net nonwoven absorbent article core 42 preferably to form by following technology: deposition three beams cellulose and bicomponent fibre, and sucting wet gel material granule 58 and last bundle fiber deposition are thereon, to form the bottom of absorbent article core.Although absorbent article core 42 is shown a lamination in Fig. 2 and 3, in a preferred embodiment, fiber by blended together to form single wire side.It is the product of 915000X313 with the form that becomes tube available from the production number of MerfinHygienic Products preferably that this multiple spot bonding air becomes the net non-woven material.
In another embodiment, the multiple spot bonding air as absorbent article core becomes the net non-woven material can adopt latex some materials (for example starch or PVA) in addition to bond.In another embodiment, be configured to lamination absorbent article core quantitatively preferably also for about 150g/m 2, and comprise that two (or a plurality of) multiple spot bonding air become the layer of net non-woven material, have the sucting wet gel material granule simultaneously between two-layer.Following patent has roughly been described suitable lamination absorbent article core structure: the United States Patent (USP) 4,950,264 and 5,009,653 of authorizing Osborn; Authorize people's such as Emenaker United States Patent (USP) 5,460,623.Description is arranged in another suitable absorbent article core patent below: JIUYUE in 1993 name with people's such as Hines name application on the 16th is called the U.S. Patent application 08/122,114 (March 23 nineteen ninety-five, the PCT open file was WO95/07674) of " sanitary towel with core of the epirelief configuration that presets ".
In the example of thick type sanitary towel, absorbent article core 42 is preferably the air felt.The United States Patent (USP) 5,234,422 of authorizing people such as Sneller has been described the suitable absorbent article core that is used for thick type sanitary towel.In a preferred embodiment, top flat 38, collecting part 44 and absorbent article core 42 can have the embossing passage shown in people's such as Sneller patent.If adopt this embossing passage, then they are preferably placed at the do not bond lateral outer side of machine-direction oriented concave 56A of window 54 of qualification.
Absorbent article core 42 optionally comprises collecting part 44.Collecting part 44 can be made by any suitable material.For example, collecting part 44 can be weaving or non-woven material.The fiber of these materials or other composition can be synthetic, or partial synthesis and part are natural.Suitable synthetic fibers comprise polyester, polypropylene, polyethylene, nylon, viscose rayon yarn or cellulosic acetate fiber.Suitable natural fiber comprises cotton fiber, cellulose fibre or other natural fiber.Collecting part 44 can be cross-linked cellulose fibres to small part also.If be nonwoven, 44 of collecting parts can be made by many different technologies.These technologies include, but is not limited to: air becomes net, wet-laying, melts and sprays, the combination by bonding, powder bonded, latex bonding, solvent bonding, spunlaced and aforementioned technology of spunbond, carded, hot adhesion, air.
The collecting part 44 that is specially adapted to sanitary towel 20 preferably includes the lamination of two kinds of non-woven materials.The upper strata of this lamination is preferably 19g/yd 2(22.5g/m 2) spunbond polypropylene non-woven material, this material is as available from Fiberweb, North America of Washougal, the production number of WA are the product of 065MLPV60U (or " P-9 ").The lower floor of lamination is preferably multiple spot bonding air-laid wadding non-woven material, and this material adopts powder bonded and the agglutinating hot adhesion of latex.In a preferred embodiment, this multiple spot bonding air-laid wadding non-woven material comprises about 77% cellulose fibre, about 20% powder adhesives and about 3% latex Liniment (each side of wire side be coated with loose be 1.5%), and this material quantitatively be about 50g/yd 2(about 60g/m 2).This multiple spot bonding air-laid wadding non-woven material is preferably the Products available from Merfin Hygienic, Ltd.ofDelta, and British Columbia, the production number of Canada are the product of 90830X312.Above-mentioned upper and lower two-layer nonwoven sheet is preferably stacked together in the following manner, is about to multiple spot bonding air-laid wadding non-woven material and is deposited on the spunbond polypropylene non-woven material.Spunbonded materials is used as the auxiliary of process or carrying wire side in the process that forms this lamination.
In another embodiment, spunbond polypropylene non-woven material can have higher or lower quantitatively, perhaps it can be by air-laid wad a quilt with cotton thin paper, wet method shop wadding thin paper or previously described any material substitution.If substitute the polypropylene non-woven material with wet method shop wadding thin paper, then the orientation of lamination is preferably turned around, thereby in finished product, multiple spot bonding air-laid wadding non-woven material is positioned on the wadding thin layer of wet method shop.In the situation of thick type sanitary towel, can adopt aforesaid any collecting part.In addition, in a preferred thick type embodiment of sanitary towel, low-density latex bonding air-laid wadding material can be used as whole collecting part (that is, need not the 3rd top flat).The low-density latex bonding air-laid wadding material that is suitable for this purpose is as available from Walkisoft, and USA ofMt.Holly, the production number of NC are the product of FG413MHB, quantitatively are about 80g/m 2
Top flat 38, egative film 40 and absorbent article core 42 can fit together by various configurations well known in the art (comprising lamellated or " sandwich " configuration and parcel or " tubulose " configuration).The preferred embodiment of the sanitary towel 20 shown in Fig. 1-3 fits together with sandwich configuration.In Fig. 1-3, the length of top flat 38 and egative film 40 and width dimensions are generally greater than the corresponding size of absorbent article core 42.Top flat 38 and egative film 40 extend beyond the edge of absorbent article core 42, and form the part of periphery 30.In the embodiment shown in Fig. 2 and 3 with collecting part 44, top flat 38 towards the garment side preferred combination to absorbent article core towards bodyside (that is, collecting part 44 towards bodyside).If absorbent article core 42 has layer structure, then if necessary, each layer can be bonded to each other.If necessary, collecting part 44 can combine with absorbent article core 42.If these parts combinations, then they can adopt any method described here to be connected with each other.Egative film 40 is linking to each other towards garment side by binding agent and absorbent article core 42 preferably.
The part that top flat 38 and egative film 40 extend beyond absorbent article core 42 edges preferably also is connected with each other.Preferably, in the embodiment shown, these parts of top flat 38 and egative film 40 connect together in the following way, i.e. the binding agent of employing (extends beyond the edge of absorbent article core 42) basically on entire portion distribution seals (passing through institute's applied pressure or pass through to heat and pressurize and densification at this place's top flat 38 and egative film 40) with the gauffer of employing at 28 places, end limit of main part 22.
Sanitary towel 20 shown in Fig. 1-3 comprises a pair of optional flap 24 that links to each other with main part 22 as previously mentioned.Flap 24 laterally stretches out from 60 beginnings of its near side (ns) and exceeds vertical side 26 of main part 22 and arrive its distal edge (or " free end ") 62.Flap 24 stretches out from the central area 36 of main part 22 at least.
Flap 24 can adopt any suitable method to link to each other with main part 22.Preferably, in the embodiment shown in Fig. 1-3, flap 24 become one with main part 22 (that is, flap 24 be the integral body of top flat 38 and egative film 40 extension).In another embodiment, flap 24 can be the independently parts that link to each other with main part 22.Each flap 24 links to each other with main element 22 (or connecting mutually with it) along a jointing line.This jointing line is generally vertical orientation (or " vertically ") jointing line, as jointing line 68.Term used herein " seam " (or " jointing line ") refers to flap 24 from zone that main part 22 is extended or linked to each other with main part 22.Jointing line 68 in the accompanying drawing illustrated embodiment can be thought to be limited by indent zone or line.When the wearer wore sanitary towel 20, flap 24 was folded under wearer's underwear.Flap 24 is usually along near side (ns) 60 or folding near near side (ns) 60.If the crotch sector width of wearer's underwear is less than the width of main part 22, then flap 24 can be folding along the longitudinal component of the main part 22 in the near side (ns) 60.If the crotch sector width of wearer's underwear is greater than the width of main part 22, then flap can be folding along the strand folding district 70 of the main part 20 that describes below.
Flap 24 can have any suitable configuration.Following patent has been described suitable flap: issued the review certificate on April 27th, 1993 and be called the U.S. review patent B1 4,589,876 of " sanitary towel " for the name of Van Tilburg; The name of authorizing Van Tilburg on August 18th, 1987 is called the United States Patent (USP) 4,687,478 of " the shaping sanitary towel with flap "; The name of authorizing people such as Lavash February 14 nineteen ninety-five is called the United States Patent (USP) 5,389,094 of " absorbent device with flap and different extensibilities zone "; The name that JIUYUE in 1996 was authorized people such as Weinberger on the 24th is called the United States Patent (USP) 5,558,663 (this patent has been described the succedaneum of the flap that is used by the wearer) of " absorbent device with the underwear covering in extensibility zone "; And in people's such as Lash name application, disclosed on October 3rd, 1996, name is called the international patent application of " absorbent device with the flap in trapezoidal configuration and extensibility zone ", and application number is PCT US 96/15957.
The medicated clothing of sanitary towel 20 surface 20B can comprise that (and preferably comprising really) is used for sanitary towel is attached to fixture on wearer's underwear.Fig. 2 shows the center liner fixture 82 that is suitable for the main part 22 of sanitary towel is fixed to underwear shelves district.Can adopt the fixture of any kind well known in the art, as binding agent fixture and mechanical fixed part etc.Find that the fixture with binding agent uses fine when being used for this purpose, and pressure sensitive adhesives preferably.In a preferred embodiment, center liner fixture 82 comprises with longitudinal centre line L being the vertical adhesive strip or the district of a pair of each interval of centrosymmetry distribution.
The outer surface of flap 24 adjacent flap distal edges 62 preferably has flap binding agent 84.Flap binding agent 84 is used to help flap 24 keeping its position after the shelves area edge parcel of medicated underpants.United States Patent (USP) 4,917,697 describe suitable binding agent fixture in detail.Can be by being attached to flap 24 on the underwear or making it to keep its position on the relative flap.
Fixture is not limited to the attachment device that bonds.The fixture of used any kind all can be used for this purpose in this area.For example, sanitary towel 20 can be fixed on wearer's the underwear by mechanical fixed part, VELCRO for example, or the name of authorizing Battrell August 7 nineteen ninety is called United States Patent (USP) 4,946, the 527 disclosed fixtures of " method of pressure sensitive adhesives fixture and this fixture of manufacturing ", or February 28 nineteen ninety-five authorize people's such as Goulait, name is called United States Patent (USP) 5,392, the 498 disclosed fixtures of " mechanical fixation system non-stimulated to skin ".But for simplicity, will adopt this term of binding agent attachment device to describe fixture.
The binding agent attachment device is covered by removable release liner, center liner release liner and flap release liner respectively, all is labeled as 86.Pressure sensitive adhesives should be coated with release liner 86, can not adhere on other external surface to make binding agent before use.United States Patent (USP) 4,917,697 have described suitable release liner.Authorize people's such as Swanson United States Patent (USP) 4,556,146 and described a kind of concrete preferred release liner, this release liner also as independent packaging with parcel sanitary towel.
Sanitary towel 20 shown in Fig. 1-3 preferably has the deformed region that forms a strand folding district 70 between at least a portion of main part 22 and flap 24.Sanitary towel 20 preferably also has at least one extension region (or " different extensibilities zone ") 72, to alleviate the stress on the flap 24 when short crotch part is folding when flap.Said structure is described in the open WO97/12576 of PCT of on April 10th, 1997 disclosed " absorbent device with the flap in band distortion strand folding district and extensible district " by name, and this patent is quoted as a reference herein.
Skin care compositions is applied to the skin protection district.Skin care compositions also can be applied to and preferentially obtain the district.Skin care compositions is applied to the amount in each district and can selects to make each district can realize the function of envisioning.Preferentially obtaining the district mainly is to be used for absorbing bodily Excreta apace, preferentially obtains the district simultaneously and also can provide the skin protection advantage for the wearer.Therefore, preferably: may stop the skin care compositions that preferentially obtains district's absorb body fluids to be applied to and preferentially obtain the district with less amount.On the other hand, the skin protection district is used for to the wearer provides the skin protection advantage, and the district of skin protection simultaneously can come the absorbing bodily Excreta by it.Therefore, preferably: a large amount of relatively skin care compositionss is applied to the skin protection district.
Preferably, the skin protection district has quantitatively greater than the skin care compositions that preferentially obtains the district.The skin care compositions that the skin protection district has is quantitatively preferably at 0.1g/m 2And 100g/m 2Between, preferably at 0.5g/m 2And 90g/m 2Between, more preferably at 1g/m 2And 80g/m 2Between.That preferentially obtains the skin care compositions that has of district quantitatively is not more than 20g/m 2, preferably be not more than 12g/m 2, more preferably be not more than 4g/m 2Preferentially obtain the district and can not have skin care compositions.Preferentially obtain the skin care compositions that district and skin protection district can have any amount of selecting in the above-mentioned scope.Yet importantly the skin care compositions that the skin protection district had makes greater than preferentially obtaining the district that quantitatively each district can finish the function of expection.
When skin care compositions was applied to a plurality of skin protections district, the amount in a skin protection district can be different from other skin protection district.Perhaps, the amount of the skin care compositions in each skin protection district can be inequality.For example, if skin protection district 102, skin protection district, back 104, peripheral skin protection district 106 and flap skin protection district 108 before skin care compositions is applied to, the skin care compositions that flap skin protection district 108 is had quantitatively can be greater than other skin protection district.Perhaps, the skin care compositions that had of peripheral skin protection district 106 quantitatively can be greater than other skin protection district.Another kind of scheme is that each all has not commensurability skin care compositions in preceding skin protection district 102, skin protection district, back 104, peripheral skin protection district 106, the flap skin protection district 108.Therefore, skin care compositions can be selected according to the function of each skin protection district expection in the amount in each skin protection district.In addition, each skin protection district can have dissimilar skin care compositionss.
Skin care compositions is applied on the top flat that preferentially obtains the district.In order preferentially to obtain district's maintenance absorbent properties, the amount of skin care compositions is chosen to be the rate of obtaining that makes the top flat part that has skin care compositions and is not less than 70% of the rate of obtaining that applies top flat before the skin care compositions, preferably be not less than 75%, more preferably be not less than 85%.Can measure the rate of obtaining of top flat part with following method.This method comprise the steps: (1) preparation Weight plate (100mm length * 100mm is wide * 30mm is thick, 0.25psi), porose at the center of plate (diameter 25.4mm); (2) place Weight plate, make the hole be positioned at and be positioned on the top flat part to be measured of absorbent device central authorities; (3) hole of 10ml sheep blood by Weight plate is applied on the absorbent device; (4) measurement applies the time (acquisition time) that drains fully behind the sheep blood in the hole of sheep blood at Weight plate, and rate is obtained in (5) following calculating:
Obtain rate (ml/sec)=10ml/ acquisition time (sec)
A plurality of other embodiment of sanitary towel 20 are feasible.For example, the main body of sanitary towel can be the form of composite sanitary napkin, and its each assembly is bonded together as described to improve globality and to obtain rate.The general introduction of composite sanitary napkin can be found in following patent: the P﹠amp that authorized people such as DesMarais " composite sanitary napkin " by name in January 10 in 1984; G United States Patent (USP) 4,425,130; On November 5th, 1996 is with the legal monopoly registration H1614 of people such as Mayer nominal disclosed " the adaptive composite sanitary napkin of health " by name.Be to form composite sanitary napkin, the effect of briefs-protecting piece (or " base wad ") will be played by sanitary towel as described, can be placed on the top of sanitary towel and be connected on the top in the end by the hygroscopic material pipe (or " main menopad ") of top flat parcel.Melting adhered point on the base wad preferably distributes in the identical mode shown in the accompanying drawing.Pipe preferably extends to base wad by the melting adhered point of the top sheet materials of tube end with being connected of sanitary towel and realizes.In some preferred embodiments of this composite sanitary napkin, can also between the end of hygroscopic material pipe and base wad, connect.The composite sanitary napkin pipe can be connected on the base wad by any suitable connection means (as passing through bonding agent) between its end.
Skin care compositions can be applied on the body contacting surface of other type absorbent device.This absorbent device with body contacting surface includes, but is not limited to tampon, absorbent interlabial article, and panty-liners, incontinence article comprises the diaper of baby diaper, training pants, adult incontinence diapers etc.
" tampon " refers to the absorbent structure that inserts vagina or other body cavity and be used to absorb any kind of liquid herein.Described the basic structure of tampon in following patent: JIUYUE in 1933 were authorized the United States Patent (USP) 1,926,900 of Haas on the 12nd; Authorized the United States Patent (USP) 1,946,911 of Haas on July 3rd, 1934; Authorized the United States Patent (USP) 3,322,123 of Giswold etc. on May 30th, 1967.
Herein, " absorbent interlabial article " refers to the moisture absorption apparatus for menstruation, incontinence protection or the purpose insertion women wearer interlabial space that both have both at the same time.Suitable absorbent interlabial article is described in following patent: the United States Patent (USP) 5,762,644 of authorizing people such as Osborn " being convenient to the absorbent interlabial article that toilet is handled " by name on June 9th, 1998; On July 9th, 1998 is with the open WO98/29078 of PCT of people such as Osborn " thin and comfortable interlabial absorbent structure " nominal disclosed by name; Authorized people's such as Mayer the United States Patent (USP) design 404,814 that is called " absorbent interlabial article " on January 26th, 1999; The U. S. application 09/071,425 that on May 1st, 1998 submitted to people's such as Brown name.
Term " panty-liners " refers to volume less than sanitary towel and the common absorbent device that is worn by the women between menstrual cycle.Open in the United States Patent (USP) 4,738,676 of the suitable absorbent device of this class as " panty-liners " by name of authorizing Osborn on April 19th, 1988.
" incontinence article " refers to liner, underwear (waiting the liner that is held in place as band by the system that keeps of the same type), the plug-in unit of absorbent device herein, the capacity of absorbent device increases part, medicated underpants, mattress etc., and no matter whether it is by being grown up or other incontinent individuals wear.Suitable incontinence article is open in following patent: the United States Patent (USP) 4,253,461 of authorizing people such as Strickland on March 3rd, 1981; Authorize the United States Patent (USP) 4,597,760 and 4,597,761 of Buell; Above-mentioned United States Patent (USP) 4,704,115; Authorize people's such as Ahr United States Patent (USP) 4,909,802; Authorize people's such as Gipson United States Patent (USP) 4,964,860 October 23 nineteen ninety; The U.S. Patent application of submitting on January 3rd, 1,991 07/637,090 (the open WO 92/11830 of disclosed PCT on July 23rd, 1992) with people's such as Noel name.
" diaper " refers to the absorbent device that is worn in lower torso member by baby and incontinent person herein.Suitable diaper is open in following patent: authorized the United States Patent (USP) 3,860,003 of Buell on January 14th, 1975; JIUYUE in 1992 were authorized people's such as Buell United States Patent (USP) 5,151,092 on the 29th; Authorized people's such as Buell United States Patent (USP) 5,221,274 in 1993; JIUYUE in 1996 were authorized people's such as Roe United States Patent (USP) 5,554,145 on the 10th.
" training pants " refers to and has the fixedly disposable medicated clothing of side and leg opening herein.Reach in the leg opening by both legs, and move training pants to suitable position around wearer's lower torso member with the wearer, thereby with the training pants placed in position.The suitable training trousers were authorized in people's such as Hasse the United States Patent (USP) 5,246,433 open on the 21st JIUYUE in 1993.
Skin care compositions can be applied on the part of absorbent device body contacting surface or on the entire portion.For example, skin care compositions can be applied on all or part of of absorbent device top flat.If absorbent device has the other parts that contact with wearers skin, as closing up, then skin care compositions can be applied on all or part of of these parts.Herein " closing in " comprise leg cuff, it comprises and stops that closing in, liner are closed up, both combination and modification; Transverse stop and bag/distance piece; Lateral plate; And the waist closing in, comprise waist flap, belt, whole waistband/belt; The combination of all or some above-mentioned various closing ins.
The representative top flat of handling with skin care compositions is described in following patent documentation: authorized Roe, Bakes on July 1st, 1997; The United States Patent (USP) 5,643,588 of people such as Warner " diaper " by name with lotion-treated top flat; Authorized Roe on June 3rd, 1997; The United States Patent (USP) 5,635,191 of people such as Mackey " diaper that contains the lotion-treated top flat of silicone emollients " by name; Authorized the United States Patent (USP) 5,609,587 of Roe " diaper that comprises the lotion-treated top flat of liquid polyol emollient and fixative " by name on March 11st, 1997; Authorized the United States Patent (USP) 5,607,760 of Roe " disposable absorbent article that contains the lotion-treated top flat of emollient and polyol polyester fixative " by name on March 4th, 1997; Above-mentioned each patent is quoted as a reference herein.This to have the method that the absorbent device of handling top flat transmits skin care compositions open in following patent literature by using repeatedly: the U.S. Patent application 08/926,532 of " keeping or improve the method for skin health " by name that JIUYUE in 1997 10 days is submitted to people's such as Elder name; JIUYUE in 1997 U.S. Patent application 08/926,533 with people's such as Van Rijswijck name submission " improving the method for skin " by name on the 10th; The U.S. Patent application 08/908,852 that is called " diaper with lotion-treated top flat " that on August 8th, 1997 submitted to people's such as Roe name, above-mentioned each patent documentation is quoted as a reference herein.The representativeness closing in of handling with skin care compositions is described in following patent documentation: by name " the absorbent device with leg cuff of lotion-treated " of December 3 days with people's such as Schulte name submission in 1996; The U.S. Patent application 08/840,039 that is called " absorbent device " that on April 24th, 1997 submitted to people's such as Schulte name with the lotion-treated leg cuff that contains silicone emollients; The U.S. Patent application 08/962,310 that is called " having the closing in of band skin care compositions and the absorbent device of top flat " that on October 31st, 1997 submitted to people's such as Schulte name; The U.S. Patent application 08/962,312 that is called " having the closing in of band skin care compositions and the absorbent device of top flat " that on October 31st, 1997 submitted to people's such as Vanri name, above-mentioned each patent documentation is quoted as a reference herein.Open in following patent documentation with the representative absorbent interlabial article that skin care compositions is handled: the U.S. Patent application 08/869,897 that is called " absorbent interlabial article that emollient is handled " that on June 5th, 1997 submitted to people's such as Osborn name; The U.S. Patent application 08/869,700 that is called " with the absorbent interlabial article of polysiloxanes processing " that on June 5th, 1997 submitted to people's such as Osborn name, above-mentioned each patent documentation is quoted as a reference herein.The representative absorbent device of handling with skin care compositions with breathability is described in the U.S. Patent application 08/926,566 of " the providing skin to regulate the disposable absorbent article of advantage " by name of submitting to people's such as Elder name as on October 9th, 1997.
B. skin care compositions
Skin care compositions preferably provides skin effect.Preferably skin care compositions should provide function protectiveness, non-occlusive (but as, a relative liquid-tight the barrier of saturating steam) preventing the excessive hydration of skin, and prevents that skin is exposed in the material contained in the body excretions; This skin care compositions should provide the function that makes minimise friction to contact the interior skin irritation in zone of wearers skin with the body contacting surface that reduces absorbent device; Perhaps it contains the reagent that the skin protection advantage directly or indirectly is provided.For example, indirect advantage comprises the removal of improved skin stimuli such as menstruation, resolution or urine.Said composition can take various forms, and includes, but is not limited to emulsion, skin lotion, emulsifiable paste, ointment, ointment, powder, suspending agent, capsule, gel etc.
Skin care compositions can be solid or semi-solid and be solid or semisolid at 40 ℃ at 20 ℃." semisolid " of this paper refers to have viscoelastic properties by skin care compositions, and (that is, when not applying shear stress, the outward appearance of skin care compositions is a solid.But, when shear stress increases, skin care compositions is flowed as fluid.)。This character guarantee the stability of skin care compositions under static conditions (as; under the condition of product stock and/or transportation); and make under mechanical shearing (as, when product is worn and shear stress is applied to condition on the skin care compositions by the wearer under) be sent to the available skin care compositions maximization that is used for skin effect on the skin.
The viscosity of skin care compositions under 40 ℃ is: when shear stress less than about 3 * 10 4Viscosity is greater than about 10 under the dynes/cm 5The pool, when shear stress greater than about 10 6Viscosity is less than about 10 under the dynes/cm 2Pool.The viscosity of skin care compositions under 40 ℃ is preferably: when shear stress less than about 3 * 10 4Viscosity is greater than about 10 under the dynes/cm 6The pool, when shear stress greater than about 10 6Viscosity is less than about 10 under the dynes/cm 1Pool.Represent articles for use storing or transportation or contact skin and skin care compositions stands potentially when wearing temperature for 40 ℃ in the present invention.About 3 * 10 4The shear stress of dynes/cm represents articles for use at the maximum shear stress that stores or be applied to during transportation on the skin care compositions.About 10 6The representative of the shear stress of dynes/cm is applied on the skin care compositions shear stress at least once when articles for use are worn.About 10 5The viscosity of pool is for preventing the MV minium viscosity that migration of skin care composition is required when storing or transport.Greater than about 10 6The viscosity of pool is more preferred concerning preventing migration of skin care composition.About 10 2The viscosity of pool is for obtaining effectively lubricating and skin care compositions being sent to peak viscosity on the wearers skin between the Body contact face of wearers skin and articles for use.Less than about 10 1The viscosity of pool is more preferred concerning effectively lubricating and transmission skin care compositions.Should by available flow graph as bore to plate (cone to plate) or plate to plate (plate toplate) type flow graph (as, SR-2000 type flow graph, Rheometrics Inc.) measure the viscosity under 40 ℃, different shear stress.
Figure 12 represents the shear stress of a preferred skin care compositions example and the graph of a relation of viscosity.When skin care compositions at 40 ℃, shear stress less than about 3 * 10 4Viscosity under the dynes/cm is greater than about 10 5During pool, skin care compositions is less in the trend that stores or move to during transportation articles for use inside and trend that remain on the Body contact face of articles for use is bigger.When skin care compositions at 40 ℃, shear stress greater than about 10 6Viscosity under the dynes/cm is less than about 10 2During pool, the trend that skin care compositions is sent on the wearers skin is bigger.Therefore, skin care compositions often keeps stable on the Body contact face at articles for use when storing or transport, thereby needs the skin care compositions of less initial amount to be dispersed on the Body contact face.In case wearer's wearable and usable absorptive article, skin care compositions will be exposed to than store or shear stress that shear stress during transportation is bigger under.Thereby skin care compositions begins to flow and the skin care compositions of effective dose is sent on the wearer's skin.Term in this article " skin care compositions of effective dose " refers to a certain amount of particular composition, in the time of on said composition being used or is moved to (" being dispersed in ") Body contact face, and the ideal skin effect that it will provide above to be mentioned effectively.
Skin care compositions under 40 ℃, can also have be not more than about 300, preferably be not more than about 150, the denseness more preferably no more than about 100." denseness " of this paper means the characteristic of opposing skin care compositions distortion.When the denseness of skin care compositions under 40 ℃ is not more than approximately 300 the time, the trend that skin care compositions remains on the Body contact face of absorbent device is bigger.Measure denseness under 40 ℃ by the described penetrometer of ASTM D5 (Penetrometer).The penetrometer that is used to measure denseness is by Petrolab Company, 874Albany-Shaker Road, and Latham, NY supplies with trade mark PNR-10.
The compositions that is dispersed in the effective dose on the Body contact face depends on used concrete skin care compositions to a great extent, uses that part of Body contact face and/or the product form (as diaper, sanitary towel etc.) of skin care compositions.But the scope that is dispersed in the minimum of the skin care compositions at least a portion Body contact face of absorbent device preferably is not less than about 0.05 milligram/inch 2(0.0078 milligram/centimetre 2), be more preferably and be not less than about 0.1 milligram/inch 2(0.016 milligram/centimetre 2), further preferably be not less than about 0.5 milligram/inch 2(0.078 milligram/centimetre 2).The scope that is dispersed in the maximum of the skin care compositions at least a portion Body contact face preferably is not more than about 80 milligrams/inch 2(12 milligrams/centimetre 2), be more preferably and be not more than about 25 milligrams/inch 2(3.9 milligrams/centimetre 2), further preferably be not more than about 5 milligrams/inch 2(0.8 milligram/centimetre 2).These scopes are only as for example, the character that persons of ordinary skill in the art will recognize that compositions will determine for reach required skin effect the amount that must use, according to disclosure of the present invention, these consumptions are determined by the experiment of routine.Particularly, when skin care compositions that will be as described in example 1 above be applied to sanitary towel shown in Figure 1 the Body contact face (as, the top flat 38 of main part 22 and flap 24) when going up, the scope that is dispersed in the amount of the skin care compositions on the Body contact face is preferably about 0.05 milligram/inch 2(0.0078 milligram/centimetre 2) to about 25 milligrams/inch 2(3.9 milligrams/centimetre 2), be more preferably about 0.1 milligram/inch 2(0.016 milligram/centimetre 2) to about 10 milligrams/inch 2(1.5 milligrams/centimetre 2), further preferably about 0.5 milligram/inch 2(0.078 milligram/centimetre 2) to about 4 milligrams/inch 2(0.6 milligram/centimetre 2).
Skin care compositions of the present invention comprises: (1) one or more emollient (emollient); (2) one or more stablize the fixative of this emollient (one or more); (3) one or more skin care activity components; (4) other optional components.Although the kind of each component of skin care compositions, rank and content are arbitrarily, the skin care compositions that comprises at least a skin care activity composition preferably satisfies the viscosity requirement under 40 ℃, promptly at shear stress less than about 3 * 10 4Viscosity under the dynes/cm is greater than about 10 5The pool, at shear stress greater than about 10 6Viscosity under the dynes/cm is less than about 10 2Pool.Especially, when skin care compositions comprised emollient and fixative, the selected scope of skin moistening dosage and fixed dosage helped to satisfy above-mentioned range of viscosities.That is, skin care compositions comprises the emollient of about 40-90%.Preferably, skin care compositions comprises about 50-85%, the emollient of 60-80% more preferably from about.Skin care compositions comprises the fixative of about 10-60%.Preferably, skin care compositions comprises about 15-50%, the fixative of 20-40% more preferably from about.
1, emollient
A kind of key component in the skin care compositions is one or more emollient.That emollient is selected from is softening, smooth, coating, moistening, lubricated or clean the material of skin.A kind of emollient is realized several these purposes (as smooth, moistening and lubricated skin) usually simultaneously.Emollient preferably has the viscoelastic denseness under 20 ℃.But as long as viscosity mentioned above is satisfied in the combination of (as, fixative) skin care compositions such as emollient and other component, so, has the viscoelastic denseness not necessarily under described 20 ℃.
Emollient also is substantially free of water.Being substantially free of water here, means in the emollient that do not have a mind and adds entry.When preparation or use skin care compositions, do not need in emollient, to add entry.But, can allow to be included in the water of a small amount of or trace in the emollient, and not have adverse effect owing to ambient humidity.Emollient can comprise about 5% or water still less, preferred about 1% or water still less, most preferably from about 0.5% or water still less usually.
Emollient is preferably hydrophobic, thereby perspiration, feces and/or menstruation form bigger contact angle with respect to the emollient ratio with respect to skin and/or articles for use top flat.Hydrophobic emollient has reduced perspiration, feces and/or the menstruation moistening to skin and/or articles for use top flat, has reduced the sense of being clamminess on the wearers skin thus.
Emollient comprises petroleum base, fatty acid ester, alkyl ethoxylates class, fatty acid ester ethoxylate, aliphatic alcohols, polysiloxane-based or its mixture.
Petroleum based emollient comprises vaseline.Vaseline is that alkyl chain length is 16 or the mixture of longer aliphatic hydrocarbon, and the outward appearance and the gelatinous feel of intrinsic gel (jelly) shape.Vaseline also classifies as the mixture of mineral oil and microwax sometimes.The mineral oil of this paper refers to that alkyl chain length is a part of vaseline of the less hydrocarbon mixture of the viscosity of 16-24.The microwax of this paper refers to that alkyl chain length is 25 or a part of vaseline of the bigger hydrocarbon mixture of longer viscosity.The slickness of skin is provided owing to its gel feel as the vaseline of emollient.As the vaseline of emollient coating skin or also, thereby cause skin care by skin absorbs.
Vaseline comprises heavy aliphatic hydrocarbon and light aliphatic hydrocarbon.Heavy aliphatic hydrocarbon and light aliphatic hydrocarbon can be comprised that straight chain and isomer define by the alkyl chain length of alkane in the vaseline.Light aliphatic hydrocarbon in the vaseline often moves sooner than the heavy aliphatic hydrocarbon in the vaseline, and this is (as, viscosity) and diffusion rate because the flowability of the molecular weight of molecule and diameter decision aliphatic hydrocarbon.Therefore, preferably, the content of heavy aliphatic hydrocarbon in vaseline is bigger than light aliphatic hydrocarbon.((weight=(molecular number) * (molecular weight of molecule)) comes relatively the amount of heavy aliphatic hydrocarbon and light aliphatic hydrocarbon by weight.Reduce the migration that light aliphatic hydrocarbon helps to reduce vaseline.But too many heavy aliphatic hydrocarbon may make skin care compositions can not flow too firmly.Therefore, should between the amount of amount that weighs aliphatic hydrocarbon and light aliphatic hydrocarbon, carry out balance.The alkyl chain length that vaseline preferably has is that the heavy aliphatic hydrocarbon of 33-36 is that the light aliphatic hydrocarbon of 23-26 is many than alkyl chain length.In this case, heavy aliphatic hydrocarbon is preferably 2.0: 1.0 to 1.0: 1.0, more preferably 1.5: 1.0 to 1.0: 1.0 with the ratio of light aliphatic hydrocarbon.More preferably, the alkyl chain length that has of vaseline is that the heavy aliphatic hydrocarbon of 30-36 is that the light aliphatic hydrocarbon of 20-26 is many than alkyl chain length.In this case, heavy aliphatic hydrocarbon is preferably 2.5: 1.0 to 1.0: 1.0, more preferably 2.0: 1.0 to 1.0: 1.0 with the ratio of light aliphatic hydrocarbon.Further preferably, the alkyl chain length that has of vaseline is that the heavy aliphatic hydrocarbon of 27-36 is that the light aliphatic hydrocarbon of 17-26 is many than alkyl chain length.In this case, heavy aliphatic hydrocarbon is preferably 3.5: 1.0 to 1.5: 1.0, more preferably 3.0: 1.0 to 2.0: 1.0 with the ratio of light aliphatic hydrocarbon.
Suitable fatty acids esters lubricant comprises by C 12-C 28Fatty acid is preferably by C 16-C 24Satisfied fatty acid, and short chain (C 1-C 8, preferred C 1-C 3) monohydric alcohol those materials of deriving and obtaining.The representational example of described ester comprises methyl hexadecanoate, methyl stearate, isopropyl laurate, isopropyl myristate, isopropyl palmitate, ethylhexyl palmitate and composition thereof.The suitable fatty acids ester also can be by long-chain fatty alcohol (C more 12-C 28, preferred C 12-C 16) and more short chain fatty acid for example the ester of lactic acid derive and obtain, as Lauryl lactate and lactic acid cetyl.The slickness of skin is provided as the fatty acid ester of emollient.Simultaneously, the fatty acid ester coating skin as emollient causes skin care thus.
Suitable alkyl ethoxylate class comprises that average degree of ethoxylation is about 2 to about 30 C 12-C 22The alcohol ethoxylate class.Preferred alcohol ethoxylate is selected from: average degree of ethoxylation is about 2 to about 23 lauryl, cetyl and stearyl ethoxylate, and composition thereof.The representational example of described alkyl ethoxylate comprises: dodecyl polyoxyethylene ether-3 (average degree of ethoxylation is 3 lauryl ethoxylate), dodecyl polyoxyethylene ether-23 (average degree of ethoxylation is 23 lauryl ethoxylate), ceteth-10 (average degree of ethoxylation is 10 spermol ethoxylate), octadecyl polyoxyethylene ether-10 (average degree of ethoxylation is 10 stearyl alcohol ethoxylate).Be used in combination as these alkyl ethoxylates of emollient vaseline common and as emollient, the weight ratio of alkyl ethoxylate emollient and Vaseline Dermatology Formula Cream agent is from about 1: 1 to about 1: 5, preferably from about 1: 2 to about 1: 4.
Suitable aliphatic alcohols comprises C 12-C 24Aliphatic alcohol, be preferably C 16-C 24Aliphatic alcohol, most preferably be C 18-C 24Aliphatic alcohol.Representational example comprises spermol, stearyl alcohol, docosanol and composition thereof.Be used in combination as these these aliphatic alcohol of emollient vaseline common and as emollient, the weight ratio of aliphatic alcohol emollient and Vaseline Dermatology Formula Cream agent is from about 1: 1 to about 1: 5, preferably from about 1: 1 to about 1: 2.
The emollient of other suitable species comprises polysiloxane compound, and it is sometimes referred to as silicone compounds or siloxane polymerization compounds.Normally suitable polysiloxane compound comprises those materials of the monomer siloxane unit with following structure:
Figure A9981674300271
In the formula, for each independently for the siloxanyl monomers unit, R 1And R 2Can be hydrogen or any alkyl, aryl, alkenyl, alkaryl, aralkyl, cycloalkyl, halogenated hydrocarbons independently of one another, or other group.Any in these groups can be that replace or unsubstituted.R in any specific monomer unit 1And R 2Can be different from binder of toothpaste.In addition, polysiloxanes can be straight chain, side chain or have circulus.In addition, radicals R 1And R 2The siliceous functional group that can be other independently of one another is as (but being not limited to) siloxanes, polysiloxanes, silane and polysilane.Radicals R 1And R 2Also can comprise many organo-functional groups, described functional group for example comprises alcohol, carboxylic acid, phenyl and amine functional group.
The alkyl group of illustrative is methyl, ethyl, propyl group, butyl, amyl group, hexyl, octyl group, decyl, octadecyl etc.The alkenyl of illustrative is a vinyl, pi-allyl etc.The aromatic radical of illustrative is phenyl, xenyl, naphthyl etc.The alkaryl of illustrative is tolyl, xylyl, ethylbenzene base etc.The aralkyl of illustrative is benzyl, α-phenethyl, β-phenethyl, α-benzene butyl etc.The group of naphthene base of illustrative is cyclobutyl, cyclopenta, cyclohexyl etc.The halogenated hydrocarbon group of illustrative is chloromethyl, bromoethyl, tetrafluoro ethyl, fluoro ethyl, trifluoroethyl, fluoroform phenyl, hexafluoro xylyl etc.
The viscosity that needs only the polysiloxanes that can make it mobile, so used when polysiloxanes can flow or be used on the articles for use top flat can change as the common variation of the viscosity of polysiloxanes as wide as possible.This is including, but not limited to being low to moderate 5 centistokes (passing through glass viscosity instrumentation amount in 37 ℃) to about 20,000,000 centistoke.Preferably in the time of 37 ℃ the viscosity of polysiloxanes from about 5 to about 5,000 centistokes, more preferably from about 5 to about 2,000 centistokes, most preferably from about 100 to about 1000 centistokes.By as with polysiloxanes emulsifying in surfactant, or, itself anti-mobile high viscosity polysiloxanes can be deposited on the articles for use top flat effectively by means of the method for solvent as hexane (just illustrative) provides polysiloxane solution.To be discussed in more detail below silicone emollients will be applied to ad hoc approach on the articles for use top flat.
Preferred polysiloxane compound is disclosed in the United States Patent (USP) 5,059,282 of authorizing people such as Ampulski on October 22nd, 1991, and the document is hereby incorporated by.The particularly preferred polysiloxane compound that can be used as the emollient in the skin care compositions comprises: the methyl polysilicone hydride compounds of band phenyl functional group (for example, polyphenyl methyl siloxane) and cetyl or the functionalized polydimethylsiloxane of octadecyl Dow Corning 556 Cosmetic-Grade Fluid:, as be respectively the polysiloxane fluid of Dow 2502 and Dow 2503.Except having the such substituent group of phenyl functional group or alkyl group, effectively substituent group also has amino, carboxyl, hydroxyl, ether, polyethers, aldehyde, ketone, amide, ester and thiol group.In these effective substituent groups, this class group that comprises phenyl, amino, alkyl, carboxyl and hydroxyl is more more preferred than other group; Phenyl functional group most preferably.
Except Vaseline Dermatology Formula Cream agent, fatty acid ester emollient, fatty acid ester ethoxylate emollient, alkyl ethoxylate emollient, aliphatic alcohol emollient and polysiloxane compound emollient, emollient can comprise on a small quantity (as, the total emollient of as many as about 10%) other conventional emollient.These other conventional emollient comprises the fatty alcohol ether that contains 12-28 carbon atom on propylene glycol, glycerol, 2,2'-ethylenedioxybis(ethanol)., spermaceti or other wax, fatty acid and its aliphatic chain, as stearic acid, and propenoxylated aliphatic alcohol; Glyceride, aceto-glyceride and C 12-C 28The glyceride of the ethoxylation of fatty acid; Other ester of polyhydric alcohol; Lanoline and derivant thereof.These other emollient should be included in by this way and make the solid of skin care compositions or semi-solid characteristic be held in the compositions.
The amount that can be included in the emollient in the skin care compositions will depend on various factors, comprise the factors such as other component in related specific emollient, desirable benefit, the skin care compositions.
2, fixative
Another key component is a fixative in the skin care compositions.Fixative can make the emollient thickening in the skin care compositions.Fixative can dissolve or be insoluble in the emollient.Not bound by theory, think that fixative forms microcosmos network so that make the skin care compositions thickening in skin care compositions (as, emollient)." microcosmos network " of this paper refers to that its unit is the particulate network of fixative that is dissolved in the fixative molecule of emollient or is insoluble to emollient.Particularly, " microcosmos network " that is dissolved in the fixative of emollient is sometimes referred to as " liquid crystal ".In microcosmos network, molecule or granule form flexible/weak connection between molecule or granule.
Fixative should be dispersed in the feasible thickening that needs more a spot of fixative to give expection in the skin care compositions.Contained a small amount of fixative makes and has more substantial emollient (it is one of active substance of the skin effect of expection) in the skin care compositions in the skin care compositions.Be dispersed in fixative in the skin care compositions and also can control the variation of the amount of skin care compositions.Preferably, fixative has sufficient dissolubility or dispersibility in emollient.In most of the cases and under the preferred situation, emollient is hydrophobic.In this case, fixative also should be hydrophobic, makes emollient and fixative can obtain required homogeneous mixture.Sometimes be blended together under fused state at fixative and emollient.
Being dissolved in fixative in the emollient can comprise and be selected from following component: C 14-C 24Aliphatic alcohol, C 12-C 24Fatty acid and average degree of ethoxylation are the C of about 2-30 12-C 24Alcohol ethoxylate and composition thereof.Preferred fixative comprises: C 16-C 24Aliphatic alcohol, more preferably C 18-C 24Aliphatic alcohol.Representational example comprises stearyl alcohol, arachidic alcohol (arachidyl alcohol), docosanol, tetracosanol, and composition thereof.This paper " stearyl alcohol " refers to contain C 18Aliphatic alcohol is as the mixture of the aliphatic alcohol of key component.This paper " arachidic alcohol " refers to contain C 20Aliphatic alcohol is as the mixture of the aliphatic alcohol of key component.This paper " docosanol " refers to contain C 22Aliphatic alcohol is as the mixture of the aliphatic alcohol of key component.This paper " tetracosanol " refers to contain C 24Aliphatic alcohol is as the mixture of the aliphatic alcohol of key component.Preferably, fixative is a docosanol.Docosanol as fixative preferably comprises C 22Aliphatic alcohol is as key component and a spot of C 24Aliphatic alcohol.Docosanol can also comprise C 18Aliphatic alcohol and C 20Aliphatic alcohol.By in docosanol, comprising a small amount of C 24Aliphatic alcohol, docosanol provides bigger stability and the fixing emollient in the skin care compositions more effectively to emollient.When docosanol comprises C 18Aliphatic alcohol, C 20Aliphatic alcohol, C 22Aliphatic alcohol and C 24During aliphatic alcohol, the ratio of each component is preferably as follows: about 50% to about 99.99% C 22Aliphatic alcohol, 63% to about 84.9% C more preferably from about 22Aliphatic alcohol; About 0.01% to about 3% C 24Aliphatic alcohol, 0.1% to about 2% C more preferably from about 24Aliphatic alcohol; About 0% to about 27% C 20Aliphatic alcohol, 10% to about 20% C more preferably from about 20Aliphatic alcohol; About 0% to about 20% C 18Aliphatic alcohol, 5% to about 15% C more preferably from about 18Aliphatic alcohol.A preferred docosanol as fixative is Lanette 22, can be from Henkel Corp.Cospha, and 300 Brookside Avenue, Ambler, PA 19002 buys.
Other preferred fixative comprises C 16-C 24Fatty acid is more preferably the C that is selected from stearic acid, behenic acid and composition thereof 18-C 24Fatty acid.It most preferably is behenic acid.Other preferred fixative comprises that average ethoxyquin degree is about 5 to about 20 C 16-C 24Alcohol ethoxylate.Preferably, aliphatic alcohol, fatty acid and aliphatic alcohol are linear and do not comprise branched chain isomer.
Importantly, suppose these preferred fixative such as C 18-C 24Aliphatic alcohol provides the microcosmos network in the skin care compositions, thereby causes skin care compositions big more than only containing the emollient denseness in the skin care compositions.These preferred fixative such as C 18-C 24The aliphatic alcohol dissolubility is enough greatly to form the homogeneous mixture of emollient and fixative.
The fixative that is dissolved in other type in the emollient can use separately or be combined and use with aliphatic alcohol, fatty acid and alcohol ethoxylate mentioned above.The example of these other type fixatives comprises mulit-hydroxy fatty acid ester, polyhydroxy fatty acid amide and composition thereof.To have three or more free hydroxyl groups on the polyol moiety of preferred ester and amide, and have the nonionic characteristic usually.Because use those articles for use of the articles for use top flat that is applied with skin care compositions may make skin sensitivity, therefore, it is relative soft and non-irritating that these esters are also tackled skin with amide.
Suitable mulit-hydroxy fatty acid ester will have following structural formula:
Figure A9981674300301
In the formula, R is C 5-C 31Alkyl, preferably straight chain C 7-C 19Alkyl or alkenyl, more preferably straight chain C 9-C 17Alkyl or alkenyl, most preferably straight chain C 11-C 17Alkyl or alkenyl, or its mixture; Y is the polyhydroxy alkyl part, and wherein hydrocarbyl chain is at least with 2 free hydroxyl groups that are connected directly on this chain; N is at least 1.Suitable Y group can be by polyhydric alcohol such as glycerol, tetramethylolmethane; Sugar is as Raffinose, maltose glucose, galactose, sucrose, glucose, xylose, fructose, maltose, lactose, mannose and erythrose; Sugar alcohol such as erythritol, xylitol, maltose alcohol, mannitol and sorbitol; And sugar alcohol acid anhydride such as sorbitan are derived and are obtained.
The mulit-hydroxy fatty acid ester that one class is suitable comprises some Isosorbide Dinitrate, preferred C 16-C 22The Isosorbide Dinitrate of satisfied fatty acid.Because the typical preparation method of these Isosorbide Dinitrates, thus these Isosorbide Dinitrates usually comprise single-, two-, three-etc. the mixture of ester.The representative example of suitable Isosorbide Dinitrate (for example comprises the Palmic acid Isosorbide Dinitrate, SPAN 40), the stearic acid Isosorbide Dinitrate (for example, SPAN 60) and the behenic acid Isosorbide Dinitrate, it comprises one or more monoesters, diester and three esters of these Isosorbide Dinitrates, for example Palmic acid anhydro sorbitol monoesters, diester and three esters, stearic acid anhydro sorbitol monoesters, diester and three esters, behenic acid anhydro sorbitol monoesters, diester and three esters, and blended tallow fatty acids anhydro sorbitol monoesters, diester and three esters.Also can use the mixture of different Isosorbide Dinitrates in addition, as the mixture of Palmic acid Isosorbide Dinitrate and stearic acid Isosorbide Dinitrate.Particularly preferred Isosorbide Dinitrate is the stearic acid Isosorbide Dinitrate, normally the mixture of monoesters, diester and three esters (adding some four ester) such as SPAN 60 and with trade name GLYCOMUL-S (Lonza, Inc.) the stearic acid Isosorbide Dinitrate of Chu Shouing.Although comprise monoesters, diester and three esters in these Isosorbide Dinitrates usually, add the mixture of some four ester, in these mixture, Main Ingredients and Appearance is monoesters and diester normally.
Another kind of suitable mulit-hydroxy fatty acid ester comprises: some monoglyceride, preferably C 16-C 24The monoglyceride of satisfied fatty acid, as monostearin, monopalmitin and glycerol one (behenic acid) ester.In addition, the same with Isosorbide Dinitrate, the mixture of monoglyceride will comprise some diester and three esters usually.Yet, should mainly comprise the monoglyceride class in the described mixture.
Another kind of suitable mulit-hydroxy fatty acid ester comprises some sucrose fatty acid ester, the C of preferably sucrose 12-C 24Polyunsaturated fatty acid ester.One ester and the diester of sucrose are particularly preferred, and comprise stearic sucrose one ester and diester and lauric acid sucrose one ester and diester.
Suitable polyhydroxy fatty acid amide has following structural formula:
R in the formula 1Be H, C 1-C 4Alkyl, 2-ethoxy, 2-hydroxypropyl, methoxy ethyl, methoxy-propyl or its mixture, preferred C 1-C 4Alkyl, methoxy ethyl or methoxy-propyl, more preferably C 1Or C 2Alkyl or methoxy-propyl, most preferably C 1Alkyl (being methyl) or methoxy-propyl; R 2Be C 5-C 31Alkyl, preferred straight chain C 7-C 19Alkyl or alkenyl, more preferably straight chain C 9-C 17Alkyl or alkenyl, most preferably straight chain C 11-C 17Alkyl or alkenyl, or its mixture; Z is the polyhydroxy alkyl part, at least 3 hydroxyls that are connected directly on this chain of its linear alkyl chain belt.Authorized the United States Patent (USP) 5,174,927 (being hereby incorporated by) of Honsa on the 29th referring to December in 1992, this Patent publish these polyhydroxy fatty acid amides and preparation method thereof.
Preferred being derived by the reducing sugar in the reductive amination process obtains the Z part; Glycosyl (glycityl) most preferably shrinks.Suitable reducing sugar comprises glucose, fructose, maltose, lactose, galactose, mannose and xylose.Can use the corn syrup that is rich in glucose, be rich in the corn syrup of fructose and be rich in the corn syrup of maltose, and list in top various sugar.The mixture of the producible sugared component of these corn syrup is used for the Z part.
Z partly is preferably selected from-CH 2-(CHOH) n-CH 2OH ,-CH (CH 2OH)-[(CHOH) N-1]-CH 2OH ,-CH 2OH-CH 2-(CHOH) 2(CHOR 3) (CHOH)-CH 2OH, n is the integer of 3-5 in the formula, R 3Be H or ring-type or aliphatic monosaccharide.Most preferably wherein n is 4 shrink glycosyl, particularly-and CH 2-(CHOH) 4-CH 2OH.
In the said structure formula, R 1Can be for example N-methyl, N-ethyl, N-propyl group, N-isopropyl, N-butyl, N-2-ethoxy, N-methoxy-propyl or N-2-hydroxypropyl; Can be to R 2Select, so that for example coconut oleoyl amine, stearmide, oleamide, lauramide, myristamide, decyl amide, palmitamide, Adeps Bovis seu Bubali amide etc. to be provided.The Z part can be 1-deoxidation shrink glucityl, 2-deoxidation shrink fructosyl, 1-deoxidation shrink malt-base, 1-deoxidation shrink lactose base, 1-deoxidation shrink galactosyl, 1-deoxidation shrink mannose group, 1-deoxidation shrink maltotriose glycosyl etc.
Most preferred polyhydroxy fatty acid amide has following general formula:
Figure A9981674300321
R in the formula 1Be the methyl or methoxy propyl group; R 2Be C 11-C 17Straight chained alkyl or thiazolinyl.These materials comprise: N-lauryl-N-methyl glucose amide, N-lauryl-N-methoxy-propyl glucamide, N-cocoyl-N-methyl glucose amide, N-cocoyl-N-methoxy-propyl glucamide, N-palmityl-N-methoxy-propyl glucamide, N-Adeps Bovis seu Bubali base-N-methyl glucose amide or N-Adeps Bovis seu Bubali base-N-methoxy-propyl glucamide.
Just as noted earlier, some fixative need be used for being dissolved in the emulsifying agent of emollient.At least about N-alkyl-N-methoxy-propyl glucamide of 7, situation is especially such for some glucamide such as HLB value.Suitable emulsifying agent generally includes the HLB value and is lower than those materials of about 7.In this respect, have found that previous described Isosorbide Dinitrate, as the HLB value be about 4.9 or littler stearic acid Isosorbide Dinitrate can be used to these glucamide fixatives are dissolved in the vaseline.Other suitable emulsifying agent comprises: octadecyl polyoxyethylene ether-2 is (with structural formula CH 3(CH 2) 17(OCH 2CH 2) nThe polyglycol ether of the corresponding to stearyl alcohol of OH, the meansigma methods of n is 2 in the formula), Arlacel-65, lauric acid Coronex (isosorbide laurate) and monostearin.The consumption of described emulsifying agent should be enough to make fixative to be dissolved in the emollient, obtains basic mixture uniformly with activation.For example, when add 20%, during as the octadecyl polyoxyethylene ether-2 of emulsifying agent and Arlacel-65 1: 1 mixture, will can not fuse into N-cocoyl-N-methyl glucose amide in the single-phase mixture and about 1: 1 mixture of vaseline usually will fuse in the single-phase mixture.
Perhaps use separately, perhaps can be with the said fixing agent component of other type that be used in combination, that can be used as fixative comprise wax, as Brazil wax, Cera Flava, candelilla wax, paraffin, microwax, castol wax, ceresine, esparto wax, ouricury wax, rezowax, Tissuemat E and other known wax.Preferred wax is microwax.The example of particularly preferred microwax is Multiwax W-835, WitcoCorporation, One American Lane, Greenwich, CT06831-2559.
The fixative that is insoluble in the emollient is granular thickening agent." the granular thickening agent " of this paper means and is little, fractionized fixative.Granular thickening agent is because its grain structure can strengthen the smooth feeling or the lubricant effect of skin care compositions.For example, pyrogenic silica (fumed silica) is to be similar to the spherical of " ball " so that when applying shearing force, it can be used as bearing (bearing), causes lubricant effect.Bentonite or Strese Hofmann's hectorite. are made of a plurality of thin layers that can slide easily, thereby cause smooth feeling.Average diameter or suitable average diameter can preferably less than 20 microns, be more preferably less than about 10 microns less than about 100 microns.When granule has differently when spherical, the suitable diameter of aspherical particle can be represented by the diameter that has a ball of equal volume with aspherical particle.Suitable diameter can be measured by Laser Particle analyser, and this analyser is by Honeywell Inc., Honeywell Plaza, and Minneapolis, MN provides with trade mark Microtrac X-100.
Granular thickening agent is insoluble in the emollient basically, but can be disperseed to form microcosmos network and to be that emollient provides solid structure.Granular thickening agent can be selected from silicon dioxide, treated silicon dioxide, polymethacrylate polymer, polymethacrylates and styrol copolymer, calcium silicates, treated calcium silicates, treated bentonite, treated Strese Hofmann's hectorite., and composition thereof.The used preferred graininess thickening agent of the present invention is a pyrogenic silica.More preferably being used for of the present invention is the surface-treated pyrogenic silica.Further preferred pyrogenic silica is selected from the pyrogenic silica that poly-alkylsiloxane is handled, the pyrogenic silica of trialkyl silica alkanisation, and the pyrogenic silica of dialkyl group disilaneization, and composition thereof.Most preferred pyrogenic silica is selected from the pyrogenic silica that polydimethylsiloxane is handled, the pyrogenic silica of trimethyl silicone hydride, and the pyrogenic silica of dimethyl disilaneization, and composition thereof.
Silicon dioxide also is known as silicon dioxide or silicic acid anhydride, and it can use chemical formula SiO 2Expression.The silicon dioxide of the operable number of different types of this paper is known pyrogenic silica or arc process silicon dioxide (arced silica), precipitated silica, silica gel, amorphous silica, Ludox and colloid.Pyrogenic silica, it is also known as arc process silicon dioxide, produces by vapor phase hydrolysis Silicon chloride. in oxyhydrogen flame.Not by the constraint of theory, think that combustion process produces silicon dioxide molecules, it condenses into granule.Granule collision, adhere to and sintering together.This process obtains three-dimensional side chain aggregation.In case aggregation is cooled to below the fusing point (about 1710 ℃) of silicon dioxide, further collision will cause the mechanical interlocking of chain to form agglomerate.Precipitated silica and silica gel normally prepare in aqueous solution.Amorphous silica is the material of naturally occurring microcrystalline form normally.Ludox and colloid are the dispersion of amorphous silica in aqueous solution.
The agglomerate mean diameter that pyrogenic silica and treated pyrogenic silica preferably have, that is, average agglomerate particle diameter is about 0.1 micron to about 100 microns, preferred about 1 micron to about 50 microns, more preferably from about 10 microns to about 30 microns.Agglomerate is by mean diameter, that is, the average aggregate particle diameter is about 0.01 micron to about 15 microns, and preferred about 0.05 micron to about 10 microns, more preferably from about 0.1 micron to about 5 microns, most preferably from about 0.2 micron extremely about 0.3 micron aggregation constitutes.
The pyrogenic silica agglomerate has activity hydroxy usually.It is desirable to handle these pyrogenic silicas so that the activity of hydroxyl diminishes, especially when the emollient in the skin care compositions when being hydrophobic.A kind of useful processing method is to apply pyrogenic silica so that the activity of activity hydroxy diminishes with nonpolar organic compound.The organic compound that is preferred for handling comprises poly-alkylsiloxane, and wherein polydimethylsiloxane is most preferred.Be used for pyrogenic silica that commercially available polydimethylsiloxane of the present invention handled by Cabot Coporation, Tuscola, IL is with trade name CAB-O-Sil  TS-720 or by Degussa AG, Germany sells with Aerosil R972, about 120 meters squared per gram of the surface area of above-mentioned two kinds of materials, bulk density is 50 grams per liters.Another kind of useful processing method is that hydroxyl and the silylating reagent with pyrogenic silica carries out chemical reaction, as, dimethyldichlorosilane or hexamethyldisilane.In these chemically treated silicon dioxide, the oxygen-silicon bound that the free hydroxyl group of silicon dioxide is silylated agent replaces.The pyrogenic silica of the trimethyl silicone hydride that can buy on the market is by Cabot Coporation, Tuscola, and IL sells with trade name CAB-O-Sil  TS-530, and its surface area is about 220 meters squared per gram, and bulk density is 50 grams per liters.The pyrogenic silica of the dimethyl disilaneization that can buy on the market is by Cabot Coporation, Tuscola, and IL sells with trade name CAB-O-Sil  TS-610, and its surface area is about 120 meters squared per gram, and bulk density is 50 grams per liters.
Also can be used for graininess thickening agent of the present invention is polymethacrylate polymer and polymethacrylates and styrol copolymer.These materials are polymer of swellable, and it can be used for absorbing fluid composition liquid is provided thickening or gelling effect.Polymethacrylate polymer is the homopolymer of methacrylate, preferably methyl ester or ethyl ester, and it is optional to carry out crosslinked with any common cross-linking agent.Polymethacrylates and styrol copolymer are methacrylates, preferably methyl ester or ethyl ester and cinnamic copolymer, and it is optional to carry out crosslinked with any common cross-linking agent.Cross-linking agent the most normally contains the material of two or more undersaturated functional groups.The monomeric unit reaction of cross-linking agent and polymer or copolymer, and be incorporated in the polymer, thereby between two or more parts of two or more single polymer chains or same polymer chain, form chain or covalent bond.The non-limiting instance of suitable crosslinking agent comprises that those are selected from the cross-linking agent of polyalkenyl polyether, allyl acrylate, ethylene oxy alkyl acrylate and the polyfunctional ethenylidene of methylene-bisacrylamide, poly (dially dialkyl) base ammonium halide, polyhydric alcohol.The instantiation that is used for cross-linking agent of the present invention comprises that those are selected from methylene-bisacrylamide, ethylene glycol bisthioglycolate-(methyl) acrylate, two-(methyl) acrylamides, acrylic acid cyano group methyl ester, ethylene oxy ethyl propylene acid esters, ethylene oxy ethyl-methyl acrylate, the pi-allyl tetramethylolmethane, trimethylolpropane diallyl ether, allyl sucrose, butadiene, isoprene, divinylbenzene, the divinyl naphthalene, ethyl vinyl ether, the cross-linking agent of methyl vinyl ether and pi-allyl acrylate.Other cross-linking agent comprises formaldehyde and Biformyl.Useful especially crosslinked polymethacrylate polymer is by Dow Corning Corp., Midland, and Mich sells with the bright Polytrap  6603 of commodity.
Also can be used for graininess thickening agent of the present invention is treated bentonite and treated Strese Hofmann's hectorite..Bentonite is the colloidal aluminum silicate clay.Strese Hofmann's hectorite. is the clay that contains sodium, magnesium, lithium, silicon, oxygen, hydrogen and fluorine.Handled so that bentonite that the polarity of clay diminishes and Strese Hofmann's hectorite. are applicable to the present invention, especially when the emollient in the skin care compositions when being hydrophobic with various organic compound." treated " of this paper means these materials and applied with organic compound.Treated bentonitic non-limiting instance comprises octadecyl benzyl dimethyl ammonium (stearalkonium) Strese Hofmann's hectorite.; The quaternium-18 bentonite; The quaternium-18 Strese Hofmann's hectorite.; Oleum Ricini and octadecyl benzyl dimethyl ammonium Strese Hofmann's hectorite. and propylene carbonate; Isopropyl myristate and octadecyl benzyl dimethyl ammonium Strese Hofmann's hectorite. and propylene carbonate; Fancol ID and quaternium-18 Strese Hofmann's hectorite. and propylene carbonate; Lanolin oil and isopropyl palmitate and octadecyl benzyl dimethyl ammonium Strese Hofmann's hectorite. and propylene carbonate and propylparaben; Propylene glycol dicaprylate/dicaprate and octadecyl benzyl dimethyl ammonium Strese Hofmann's hectorite. and propylene carbonate; Mineral oil and quaternium-18 Strese Hofmann's hectorite. and propylene carbonate; Mineral oil and quaternium-18 Strese Hofmann's hectorite. and SD alcohol 40; Oil distillate and quaternium-18 Strese Hofmann's hectorite. and propylene carbonate; C 12-15Alkyl benzoate and quaternium-18 Strese Hofmann's hectorite. and propylene carbonate; Cyclomethicone and quaternium-18 Strese Hofmann's hectorite. and SD alcohol 40; Cyclomethicone and quaternium-18 Strese Hofmann's hectorite. and propylene carbonate; And composition thereof.
Also can be used for granular thickening agent of the present invention is calcium silicates and treated calcium silicates.Usually the calcium silicates of form comprises CaSiO 3, CaSiO 4And CaSiO 5These materials also are known as the calcium salt of silicic acid.Calcium silicates can be handled so that the material hydrophobicity is bigger with multiple nonpolar organic compound.Useful calcium silicates comprise following commercially available material: Hubersorb (Huber Corp., Harve de Grace, Md.) and Micro-Cel C, Micro-Cel E and Micro-Cel T-38 (Celite Corp., Denver, Colo.).
Because through surface treatment, above-mentioned most of graininess thickening agents can be dispersed in the emollient in the skin care compositions easily.Except the surface except or surface-treated in conjunction with, some emulsifying agent is useful sometimes.
The amount that can be included in the fixative in the skin care compositions depends on multiple factor.
3. skin care activity composition
Can add multiple skin care actives in the skin care compositions.These skin care actives preferably provide skin-care effect.These active component include but not limited to: skin protectant, proton give agent, enzyme inhibitor or its mixture.Because migration is less between storage or delivery period, skin care compositions can reduce the amount of the skin care activity composition that is added, and the skin care activity composition of effective dose is provided simultaneously in use.
Can add skin protectant so that treatment and/or skin care effect to be provided.Will be appreciated that, used multiple material in the skin care compositions on being sent to skin, those think that the material of skin protectant and composition thereof is the used inevitable material of the present invention safely and effectively.This class material comprises that food and medicine management board of the United States Federal (FDA) is about defined I class active substance in the provisional final regulation (21 C.F.R. § 347) of the human skin care medicine that uses of nonprescription drugs; it comprises at present: allantoin (allantoin), gel aluminum hydroxide, calamine cream, cupu oil, polydimethylsiloxane, cod liver oil (mixing), glycerol, Kaolin, vaseline, lanoline, mineral oil, shark liver oil, white vaseline, Talcum, local starch, zinc acetate, zinc carbonate, zinc oxide etc.Other can applicable material be a food and medicine management board of above-mentioned the United States Federal (FDA) about the III class active substance (21 C.F.R. § 347) defined in the provisional final regulation of the human skin care medicine of nonprescription drugs, and it comprises at present: active yeast cell derivative, ALDA (aldioxa), aluminum acetate, microporous fibre element, vitamin D 3, colloidal oatmeal powder, cysteine hydrochloride, pantothenylol, Peru balsam oil, protein hydrolysate, racemic methionine, sodium bicarbonate, vitamin A, cation and anion exchange resin buffer mixture, corn starch, trolamine etc.Other operable material is a food and medicine management board of above-mentioned the United States Federal (FDA) about the II class active substance (21 C.F.R. § 347) defined in the provisional final regulation of the human skin care medicine of nonprescription drugs, and it comprises at present: bizmuth subnitrate, boric acid, iron chloride, polyvinylpyrrolidone-vinyl acetate co-polymer, sulfur, tannin etc.Skin protectant can be selected from these materials and composition thereof.Just as mentioned above like that, used material should be safe.
Skin care compositions can comprise about 0.001% to about 50% skin protectant.The concentration range of the skin protectant in the skin care compositions changes according to different materials.Following table shows preferred skin protectant and the concentration range of using thereof in the skin care compositions.
Possible concentration range (%) Preferred concentration range (%)
Allantoin ????0.2-5 ????0.5-2
Gel aluminum hydroxide ????0.1-10 ????0.15-5
Calamine cream ????0.2-40 ????1-25
Cupu oil ????30-50 ????40-50
Polydimethylsiloxane ????0.2-40 ????1-30
Glycerol ????5-50 ????20-45
Kaolin ????2-30 ????4-20
Vaseline ????30-50 ????40-50
Shark liver oil ????0.1-10 ????1-5
White vaseline ????30-50 ????40-50
Zinc acetate ????0.05-10 ????0.1-2
Zinc carbonate ????0.05-10 ????0.2-2
Zinc oxide ????0.1-25 ????0.3-8
Should be understood that skin care compositions can comprise the above listed material that exceeds its scope.For example, be that 90% skin care compositions can be vaseline as emollient and 50% vaseline as skin protectant (10% can be fixative in addition) when skin care compositions changes 40% vaseline.
The skin protectant of many FDA regulations is used in the commercially available skin-protection product at present, as A+D  ointment, Vaseline  petroleum jelly, Desitin  diaper rash cream and Daily Care  ointment, the medicinal infant powder of Gold Bond , Aquaphor  treatment ointment, Baby Magic  baby moistening liquid, Johnson ' s UltraSensitive  baby frost.Can add those skin care ingredients and/or product to produce treated articles for use.
The active substance that can add to proton remains on wearer's skin under its natural acid pH with help.For example, these give the active substance of proton can be effectively in and any high pH (that is, greater than the 7) component in the bodily exudate.The chemically suitable active substance of giving proton helps skin pH is remained under the summary acid condition effectively.Comprise for the enumerating of nonrestrictive and illustrative of the active substance of proton: the monomer organic acid; The ackd salt of organic acid or mineral acid; With polymer organic acid and salt thereof.As long as the pH of the aqueous solution of acid/salt combination is less than 7, some combination of acid and salt thereof is known as buffer usually, also is suitable.At least one pKa of suitable acid or ackd salt is about 2.0 to about 6.5.Preferable range for the pKa value of the active substance of giving proton is about 2.5 to about 5.0.The preferred active substance of proton of giving comprises pharmaceutically useful monomer and polymer organic acid.
The monomer organic acid example that is suitable for comprises citric acid, malic acid, adipic acid, 1,3-propanedicarboxylic acid, lactic acid, sorbic acid, salicylic acid, tartaric acid, maleic acid, fumaric acid, malonic acid, glycolic (glycolic) and succinic acid.
The example of polymer organic acid comprises: acidic vinyl polymer, as, the homopolymer of undersaturated carboxylic acid and anhydride monomers, as acrylic acid itself, methacrylic acid, α-Lv Daibingxisuan, alpha-cyanoacrylate, Beta-methyl acrylic acid (.beta.-methylacrylic acid), atropic acid, β-acryloxy propionic, sorbic acid, the alpha-chloro sorbic acid, angelic acid, cinnamic acid, right-chloro-cinnamic acid, β-octadecyl acrylic acid, the itaconic acid, citraconic acid, mesaconic acid, glutaconate, equisetic acid, maleic acid, fumaric acid, three carboxyl ethylene and maleic anhydrides, the copolymer of undersaturated monomer acids and suitable comonomer, the neutral salt of the part of this base polymer; The acid cellulose derivant, as carboxymethyl cellulose, wherein cellulose derivative to small part by protonated, the cellulose of cellulose phosphate and oxidation; And cation exchange resin, wherein cation exchange resin to small part by protonated.
The example of inorganic acid salt comprises the blend of blend, alkali metal one hydrogen pyrophosphate and the alkali metal one hydrogen pyrophosphate and the dihydro pyrophosphate of alkali metal one hydrogen orthophosphate, alkali metal one hydrogen orthophosphate and dihydrogen orthophosphate.
The material that is degraded in the environment of contiguous wearers skin to the active substance of proton also is suitable for.For example, the esterase in the feces (as, faecal fat enzyme) can some ester of hydrolysis to offer the active substance of proton.This suitable class has following formula for the active substance of proton:
Wherein, R 1, R 2And R 3Be hydrogen, alkyl, thiazolinyl or hydroxyalkyl independently with 1-4 carbon atom.The example of this class ester is a glyceryl triacetate.
Effectively to help skin is remained under the acid pH in order making, to give the active substance of proton should be,, preferably provide at least about 3% amount usually at least about 0.5% with at least 0.01% of skin care compositions to the active substance of proton.The active substance of giving proton that this class is suitable can be used as the composition of skin care compositions with about 0.01% to about 40% amount, and this depends on the selected concrete active substance of giving proton.Preferably, giving the consumption of the active substance of proton is about 0.5% to about 20% of skin care compositions.In particularly preferred embodiments, the consumption to the active substance of proton that is provided is about 3% to about 7%.
Be disclosed in that on March 12nd, 1998 submitted to people's such as McOsker name, exercise question U.S. Patent application serial number 09/041509 for these and other feature of the active substance of proton, this document is introduced the present invention as a reference for " active substance of giving proton in the absorbent device ".
Can add enzyme inhibitor and make it be present in skin/urine, skin/feces, skin/menstruation also reduces or prevents the generation of inflammation at the interface with the enzymatic activity on the inhibition skin.Inhibitor with enzymatic activity is known, is divided into competitive inhibitor (they combine with the avtive spot of enzyme with substrate competition) and noncompetitive inhibitor (they are attached to the site that is not avtive spot, make enzyme deactivation) usually.Many enzymes such as metalloproteases by with enzyme on the material of melts combine suppress.Chelating agen is the special effective inhibitors that need exist metal ion such as calcium, cobalt, copper, magnesium, manganese, sodium, potassium or zinc to come activatory other enzyme.Because enzyme is protein, also be effective enzyme inhibitor at the antibody of concrete enzyme.
Be used for absorbent device of the present invention enzyme inhibitor IC 50Value is no more than about 500 μ M usually, more generally be to be no more than about 250 μ M, also more generally be to be no more than about 100 μ M.Term " IC used herein 50" refer to when material (inhibitor) reduces the speed 50% of the substrate that enzyme decomposed inhibition concentration (micro-molar concentration for example, uM).According to formula IC 50=[I]/[(v/v i)-1] calculating IC 50, wherein [I] refers to the inhibitor concentration measured, the speed that substrate decomposed when v referred to not have inhibitor, v iThe speed that substrate decomposes when referring to inhibitor is arranged.The IC of enzyme inhibitor 50Can measure by protease method, the feces enzyme process of purification, the exercise question that described method was submitted to people's such as Roe name on March 12nd, 1998 is to be described in the U.S. Patent application serial number 09/041266 of " disposable absorbent article with skin care compositions of enzyme-containing inhibitor ".Be appreciated that the IC of some enzyme inhibitor (for example EDTA) 50Be worth highlyer, but still can be used in the absorbent device of the present invention.Can not determine the material of molecular weight for those, when the concentration of this class material in skin care compositions and methods was no more than about 5% weight, it reduced the activity at least 50% of enzyme usually.
Do not add restriction, can use the enzyme inhibitor of any kind in the skin care compositions on being transferred to wearer's skin, comprise the inhibitor and the synthetic chemical inhibitor of producing of the natural appearance of plant, microorganism and/or animal origin (comprising the people).Enzyme inhibitor can be a hydrophilic or hydrophobic, can be water miscible therefore, or be dissolved in the hydrophobic carrier.The enzyme inhibitor preferably concentration in skin care compositions is about 0.001% to about 50% weight, and normally about 0.01% to about 25% weight, more generally be about 0.1% to about 10% weight, the most common is about 0.1% to about 5% weight.Because the multiformity of employed enzyme inhibitor, the valid density of every kind of inhibitor must determine respectively that this is that those of ordinary skills are known.
Enzyme inhibitor can be separately or is used in a kind of absorbent device as " cocktail " inhibitor as the mixture of enzyme inhibitor.And different enzyme inhibitors can be used in the skin care compositions and methods, is used for a kind of diverse location of absorbent device.
Because there are various enzymes in the bodily exudate, so the material that can rational prediction suppresses certain fermentoid (for example protease) those as hereinafter describing also can suppress to decompose the enzyme that substrate is not those predetermined substances (for example protein and a peptide).Therefore, the inhibitor of Profilin enzyme also can suppress lipase and other esterase, amylase and/or urease or also be like this conversely.
The enzyme of normal discovery and/or the inhibitor of coenzyme are preferred in skin care compositions in bodily exudate.Therefore, the enzyme inhibitor inhibitor of proteolytic enzyme such as trypsin, chymase, amino peptidase and elastoser, lipase, bile salts, amylase and/or urease preferably.
Believe that the inhibitor of the useful proteases that exemplifies can suppress to indicate in the bracket protease of type, include but not limited to trypsin inhibitor such as Phaseolus lunatus L. protease inhibitor, the zein enzyme inhibitor etc. of soybean trypsin inhibitor and other plant derivation; Bao Man-Bi Erke (Bowman-Birk) inhibitor (serine, trypsin albuminoid enzyme inhibitor); The pancreas protease inhibitor of pancreas protease inhibitor such as Pancreas Bovis seu Bubali basic pancreatic trypsin inhibitor and other animal derived; Egg white trypsin inhibitor (serine, trypsin albuminoid enzyme inhibitor); The ovoinhibitor that contains ovomucoid is as coming from (trypsin and the chymotrypsin inhibitor) of chicken or turkey egg white; Chymotrypsin inhibitor (serine, chymase albuminoid enzyme inhibitor); Aprotinin (serpin); Leupeptin and analog thereof such as propiono-leupeptin, N-α-uncle-butoxy carbonyl deacetylation leupeptin (serine and cystatin); Bestatin and analog thereof such as epibestatin and nitro bestatin (amino peptidase inhibitors of metalloproteinase); Amastatin and analog thereof such as epiamastatin (aminopeptidase inhibitor); Protease inhibitor (trypsin inhibitor); Antithrombin III (serpin); Trematodiasis element (thrombin class serpin); Cystatin (egg white cystatin); E-64 (anti--epoxy radicals succinyl group-L-leucylamino-(4-guanidine radicals) butane) and analog (cystatin) thereof; Alpha2-macroglobulin (general endo protease inhibitor); Alpha1-antitrypsin (trypsin inhibitor); Pepsin inhibitor and analog thereof such as acetyl group pepsin inhibitor, pepsin inhibitor A, Nle-Sta-Ala-Sta (aspartyl protease inhibitors); Apstatin (amino peptidase P inhibitor); (2R)-2-mercapto methyl-4-methylpent acyl group-b-(2-naphthyl)-Ala-Ala amide (matrix metallo-proteinase inhibitor); (2R)-2-mercapto methyl-4-methylpent acyl group-Phe-Ala amide (matrix metallo-proteinase inhibitor); N-acetyl group-Leu-Leu-methionine aldehyde (calpain inhibitor); N-acetyl group-Leu-Leu-nor-leucine aldehyde (calpain inhibitor); Right-amino benzoyl-Gly-Pro-D-Leu-D-Ala hydroxamic acid (matrix metallo-proteinase inhibitor); 2 (R)-[N-(4-methoxyphenyl sulfonyl)-N-(3-pyridylmethyl) amino]-3-methyl butyl-hydroxamic acid (inhibitors of metalloproteinase); L-1-chloro-3-[4-tolyl acylamino-]-7-amino-2-heptanone-HCl (TLCK), L-1-chloro-3-[4-tolyl acylamino-]-4-phenyl-2-butanone (TPCK), tranamic acid, glycyrrhizic acid, 18-β-Gan Caotingsuan, oat extract colloid, elhibin, zinc salt, iodo acetas, phenyl methyl fluorosulfonyl, phosphoramidate, 4-(2-amino-ethyl)-benzene sulfonyl fluorine hydrochlorate, 3,4-dichloro isocoumarin, Tricetin etc. and their mixture.
Find that also chelating agen also can be as the inhibitor of protease and urease when about 0.1% to about 2% concentration.The chelating agen that exemplifies is phytic acid, nitrilotriacetic acid(NTA), EDTA, diethylidene triamido pentaacetic acid, Oxyethylethylenediaminetriacetic acid, and corresponding hydrochlorate, they are disclosed in the US 5091193 that authorized Enjolras on February 25th, 1992, and the present invention introduces this piece patent as a reference.
Preferred protease inhibitor is to show to suppress active chemical compound, must not be limited to other protease of unitary class and suppress activity.Such chemical compound includes but not limited to six amidines and salt thereof; Five amidines and salt thereof; Benzenecarboximidamide, right-aminobenzene carbonamidine and derivant thereof; P-Aminobenzamidine and salt thereof and derivant; With guanidinobenzoic acid and salt and derivant, authorized disclosed content among the US5376655 of Imaki etc. on the 27th as December in 1994, the present invention introduces this piece patent as a reference.Other preferred protease inhibitor comprises that the exercise question of submitting to people's such as Mclver name on March 12nd, 1998 is the U.S. Patent Application Serial Number 09/041 of " enzyme inhibitor ", the polymer derivant of guanidinobenzoic acid of disclosed and preparation is introduced into as a reference in 196.
Preferred in the embodiment of this invention protease inhibitor is the polymer derivant (open and preparation in the U. S. application serial number 09/041191 that above is incorporated herein by reference) that soybean trypsin inhibitor, aprotinin, six amidines (for example six amidines, two isethionates), p-Aminobenzamidine, leupeptin, stomach press down protease A, chymase and guanidinobenzoic acid.Particularly preferred protease inhibitor is the polymer derivant of soybean trypsin inhibitor, six amidines, p-Aminobenzamidine and aforementioned guanidinobenzoic acid.
In the presence of the heavy metal ion of trace is isoionic as silver, copper, the known urease that suppressed.Therefore, the salt of these metals of trace (being low to moderate 0.001% or lower) can be used as urease inhibitor.The inhibitor with urease activity that other exemplifies comprises but is not limited to acetyl group hydroxamic acid and derivant thereof, as cinnamoyl hydroxamic acid and other alkylhydroxamic acid; Phosphoramidate and derivant thereof.This chemical compound is the competitive inhibitor of urease under the concentration of about 2 micromoles (μ M).Also find the inhibitor of chela mediating recipe useful as protease and urease when about 0.1% to about 2% concentration.The chelating agen that exemplifies is phytic acid, nitrilotriacetic acid(NTA), ethylenediaminetetraacetic acid (EDTA), diethylidene triamido pentaacetic acid, Oxyethylethylenediaminetriacetic acid, and corresponding salt, they are disclosed among the US 5091193, and the present invention introduces this piece patent as a reference.Other urease inhibitor is disclosed in the US 3935862 that authorized Kraskin on February 3rd, 1976, the present invention introduces this patent as a reference, and comprise amino-acid compound, as hydroxy alkyl aminoacid, sulfydryl aminoacid, sulfamic acid, phosphoramidic acid chemical compound and ether aminoacid such as methoxy ethyl iminodiacetic acid, ethylenebis (the amino oxalic acid of oxygen propyl group), ethylenebis (oxygen ethyl iminodiacetic acid), amino methyl phosphoric acid (N, the N-oxalic acid) etc., and the aminopolycarboxylic chemical compound, comprise the acid and the diethylene-triamine pentaacetic acid (DTPA) of salt form, N-hydroxyl-ethyl ethylene amine triacetic acid (HEDTA) etc.
The inhibitor of the urease that other is suitable is disclosed among the US5409903 that authorizes April 25 nineteen ninety-five such as Polak etc., and the present invention introduces this piece patent as a reference.This piece patent disclosure binary magnesium phosphate, dialdehyde polysaccharide and zeolite, they use separately or mutually combine use or and calcium compounds, calcium acetate, calcium chloride, calcium gluconate, calcium lactate, and magnesium compound, magnesium chloride and magnesium citrate make together and are used for suppressing urease.
Suitable lipase inhibitor includes but not limited to the water soluble salt of metal, as cadmium, cobalt, copper, ferrum, molybdenum, silver, lanthanum, stannum and zinc.The lipase that exemplifies suppresses chemical compound and is described in US 4556560, the present invention introduces this piece patent as a reference, comprises zinc chloride, zinc acetate, the zinc nitrate trihydrate, the zinc nitrate hexahydrate, zinc sulfate, the zinc sulfate heptahydrate, the zinc sulfate hexahydrate, ferrous chloride (II), ferrous chloride (II) tetrahydrate, iron chloride (III), iron chloride (III) monohydrate, iron chloride (III) hexahydrate, ferrous lactate (II), ferric lactate (III), ferric malate (III), ferrous nitrate (II), ferric nitrate (III) hexahydrate, ferric nitrate (III) nonahydrate, ferrous sulfate (II) and hydrate thereof, iron sulfate (III) and hydrate thereof, copper sulfate pentahydrate, stannic chloride, cobaltous chloride, lanthanum chloride, have about 6 zinc salts to the saturated and unsaturated monocarboxylic of about 12 carbon atoms, the block copolymer of propylene oxide and ethylene oxide (for example Pluronic  and the Tetronic  that on market, sells) by BASF Corp., have about 2 to the triglyceride of the fatty acid of about 20 carbon atoms such as acetic acid triglyceride etc.Other useful lipase inhibitor is disclosed among the US5091193, and the present invention introduces this piece patent as a reference, saturated or undersaturated, straight or branched alkyl acetates, lactate or the propionic ester of the ester that comprises aliphatic alcohol as having 10 to 20 carbon atoms; Saturated or unsaturated, straight or branched zinc salt with fatty acid of 2 to 22 carbon atoms, as with formed salt such as propanoic acid, isopropylformic acid., sad, 9-undecylenic acid; The zinc salt of the acid of amidized acyl groupization such as propiono cysteine, propiono hydroxyproline or octyl group cysteine etc.Found as indicated above those of lipase inhibitor concentration be about 0.01% to about 10% o'clock useful.
Other useful lipase inhibitor, be disclosed in and be " compositions of prevention skin rash " european patent application serial number 97120699.0 with the exercise question of the name application of G.Palumbo etc. on November 26th, 1997, the present invention introduces this piece patent application as a reference, comprise the specificity ester compounds that substitutes substrate as feces lipase, so they are competitive lipase inhibitors.These esters have following formula:
Figure A9981674300431
R wherein 1With each R 2Be carboxyl groups independently, or have alkyl, alkenyl, aryl alkyl, hydroxy alkyl or the hydrogen of 1 to 24 carbon atom, wherein R with 2 to 22 carbon atoms 1And R 2In at least one be a kind of like this acyl group, R 3, R 4, R 5, R 6, R 7, R 8And R 9Be alkyl, alkenyl, aryl alkyl, hydroxy alkyl, alkoxyl independently with 1 to 24 carbon atom, hydroxyl or hydrogen; R 10And R 11Be alkyl, alkenyl, aryl alkyl, hydroxy alkyl, alkoxyl independently with 2 to 24 carbon atoms, hydroxyl or hydrogen; A and B are C independently 1-C 6Straight or branched alkylidene, alkenylene, alkylene oxide group, hydroxy alkylidene; The value of x is 0 to 15 independently; The value of y is 0 or 1 independently; When condition is x=2 and y=0, at least one R 2Be alkyl, alkenyl, aryl alkyl, hydroxy alkyl or hydrogen with 1 to 24 carbon atom.
The example of other of lipase inhibitor is disclosed among the US 5643874, and the present invention introduces this piece patent as a reference, and it comprises (2S, 3S, 5S)-5-[(S)-2-formamido group-4-methylpent acyloxy]-2-hexyl-3-hydroxy-16-1, the 3-acid lactone is also referred to as tetrahydrochysene and presses down lipstatin; (2S, 3S, 5S, 7Z, 10Z)-5-[(S)-2-formamido group-4-methylpent acyloxy]-2-hexyl-3-hydroxy-7,10-16 dienoic acids-1, the 3-acid lactone is also referred to as and presses down lipstatin; 1-(trans-4-isobutyl group cyclohexyl)-2-(phenyl sulfonyloxy) acetone is also referred to as FL 386; 4-methyl piperidine-1-carboxylic acid-4-Phenoxyphenyl ester is also referred to as WAY-121898; N-[3-chloro-4-(trifluoromethyl) phenyl-N ,-[3-(trifluoromethyl) phenyl] carbamide is also referred to as BAY-N-3176; N-formoxyl-L-valine-(S)-1-[[(2S, 3S)-3-hexyl-4-oxo-2-oxa-cyclobutyl] methyl] hexyl ester, be also referred to as valilactone; (2S, 3S, 5S, 7Z, 10Z)-5-[(S)-2-acetylaminohydroxyphenylarsonic acid 3-carbamoyl propiono oxygen]-2-hexyl-3-hydroxy-7,10-16 dienoic acid lactones are also referred to as and press down esterase (esterastin); (3S, 4S)-4-[(1S, 5R, 7S, 8R, 9R, E)-and 8-hydroxyl-1,3,5,7,9-pentamethyl-6-oxo-3-hendecene base]-3-methyl-2-oxetanone, be also referred to as ebelactone A; (3S, 4S)-3-ethyl-4-[(1 S, 5R, 7S, 8R, 9R, E)-and 8-hydroxyl-1,3,5,7,9-pentamethyl-6-oxo-3-hendecene base]-the 2-oxetanone, be also referred to as ebelactone B; With 1,6-two (O-(carbamoyl) cyclohexanone-oxime) hexane is also referred to as RHC 80267.
Comprise as the coenzyme of lipolytic enzyme and the bile salts inhibitor that exemplifies that can be used as the lipase inhibitor of absorbent device of the present invention, but be not limited to, be disclosed in and be the cationic compound in the european patent application 97120700.6 (the present invention introduces this piece patent application as a reference) of " skin care compositions " with the exercise question of the name application of G.Palumbo etc. on November 26th, 1997.This chemical compound has following formula:
Figure A9981674300451
Perhaps amphoteric compound is preferably acid source, has the amphoteric compound of following formula when isoelectric point, IP:
Figure A9981674300452
Be used for preparing the compositions that is used for the treatment of, prevents or reduce the steatolysis dermatitis of crust, wherein, R 1, R 2, R 3, R 4Be C independently 1-C 22Alkyl, alkenyl, aryl, aryl alkyl, amidoalkyl, poly-alkoxyl, hydroxy alkyl or acyl group, perhaps R 1, R 2, R 3And R 4In two or morely form one or more ring structures together; R 5, R 6With A be C independently 1-C 22Alkylidene, alkylene group, poly-alkylene oxide group, hydroxy alkylidene, aryl alkylene or acylamino-alkylidene; R 7And R 8Be C independently 1-C 4Alkyl, alkenyl, alkoxyl or hydroxyl or hydrogen; R 9And R 10Be C independently 1-C 22Alkyl, alkenyl, aryl, aryl alkyl, amidoalkyl, poly-alkoxyl, hydroxy alkyl, perhaps acyl group, perhaps R 1, R 9And R 10In two or morely form one or more ring structures together; BH is to the proton base; X is 2-4, M -It is counter ion.
The another kind of suitable bile salts inhibitor that exemplifies is cholestyramine, be disclosed in the publication of C.Michael White etc., exercise question is in " Cholestyramine Ointment to TreatButtocks Rash and Anal Excoriation in an Infant ", The Annals ofPharmacotherapy 30:954-956, in JIUYUE, 1996.
Existing about derivant to guanidinobenzoic acid, particularly to the description of the ester of guanidinobenzoic acid as esterase inhibitor.This class inhibitor can be used in the skin care compositions of absorbent device, and they are disclosed in December in 1994 and authorized in 27th among people's such as Imaki the US 5376655, and this paper introduces this patent as a reference.
Suitable amylase inhibitor and/or glucosidase amylase inhibitor comprise and are disclosed among the US5643874 those, this paper introduces this patent as a reference, comprising O-4,6-dideoxy-4-[[[1S-(1 α, 4 α, 5 β, 6 α)]-4,5,6-trihydroxy-3-(hydroxymethyl)-2-cyclohexene-1-yl] amino]-α-D-glucopyranose base-(1 → 4) O-α-D-glucopyranose base-(1 → 4)-D-glucose, be also referred to as acarbose; 2 (S), 3 (R), 4 (S), 5 (S)-tetrahydroxy-N-[2-hydroxyl-1-(methylol)-ethyl]-5-(methylol)-1 (S)-cyclohexylamine, be also referred to as voglibose; 1,5-dideoxy-1,5-[(2-ethoxy) imino group]-the D-glucitol, be also referred to as emiglitate; 2,6-dideoxy-2,6-imino group-7-(β-D-glucopyranose base)-D-glycerol-L-gulose heptitols is also referred to as MDL-25637; 1,5-dideoxy-1,5-(6-deoxidation-1-O-methyl-α-D-glucopyranose-6-base imino group)-D-glucitol is also referred to as camiglibose; 1,5,9,11,14-penta hydroxy group-3-methyl-8,13-dioxo-5,6,8,13-tetrahydro benzo [a]-aphthacene-2-carboxylic acid is also referred to as pradimicin Q; Be also referred to as adiposine; And 1,2-dideoxy-2-[2 (S), 3 (S), 4 (R)-trihydroxy-5-(methylol)-5-cyclohexene-1 (S)-Ji amino]-the L-glucopyranose, be also referred to as salbostatin.Other suitable amylase inhibitor comprises tendamistat, and trestatins, and derived from those of plant is particularly derived from those of Semen Tritici aestivi, Oryza sativa L., corn, Fructus Hordei Vulgaris and other frumentum, bean and Sargassum.
These and other feature of enzyme inhibitor is disclosed in the exercise question submitted to the name of Rourke etc. on March 12nd, the 1998 U.S. Patent application serial number 09/041232 for " protease inhibitor in the absorbent device ", with the exercise question of submitting to the name of Roe etc. on March 12nd, 1998 in the U.S. Patent application serial number 09/041266 of " disposable absorbent article " with skin care compositions of enzyme-containing inhibitor, these two pieces of files are introduced the present invention as a reference.
The skin care activity composition is dissolved or insoluble.Insoluble skin care activity composition can be dispersed in the skin care compositions with dispersant, forms the homogeneous mixture of skin care compositions.Preferably, insoluble skin care activity composition is pre-dispersed in the pre-dispersed solvent with dispersant.Pre-dispersed solvent can be petroleum base, fatty acid ester, alkyl ethoxylate, fatty acid ester ethoxylate, aliphatic alcohol, polysiloxanes or its mixture.And pre-dispersed solvent can be soluble skin care activity composition.The example of preferred dispersing agent is a diethanolamine polyoxyethylene oleoyl ether phosphate; Poly-hydroxy stearic acid, polyglycereol-6 polyricinoleate, neopentyl glycol diisopstearate, propylene glycol two capric acid, and composition thereof.Other possible dispersant is Isoeicosane and polyisobutylene and quaternium-18, phenyl three polydimethylsiloxane (phnyltrimethicone) and quaternium-18 Strese Hofmann's hectorite. and triethyl citrate, 2-Methylpentadecane and quaternium-18 Strese Hofmann's hectorite. and propylene carbonate, mineral oil and quaternium-18 Strese Hofmann's hectorite. and propylene carbonate, the different propylene ester of myristic acid and octadecyl benzyl dimethyl ammonium Strese Hofmann's hectorite. and propylene carbonate, Cyclomethicone and quaternium-18 and SDA40, lanolin oil and isopropyl palmitate and octadecyl benzyl dimethyl ammonium Strese Hofmann's hectorite. and propylene carbonate and propylparaben, 1-EICOSANOL, or its mixture.
4. other optional components
Skin care compositions can comprise other optional components.These optional components comprise water, hydrophilic surfactant active, viscosity-modifying agent, spice, film former, deodorizer, opacifying agent, solvent etc.Can add stabilizing agent such as cellulose derivative, protein and lecithin, to increase the storage period of skin care compositions.Can add the hydrophilic surfactant active with promote fluid (as, urine, menstruation etc.) from the quick transfer of top flat to articles for use moisture absorption internal layer.This class hydrophilic surfactant active's details is disclosed in and authorized Roe, Bakes on July 1st, 1997; In the United States Patent (USP) 5,643,588 of the exercise question of Warner for " diaper ", as a reference with this patent introducing the present invention with top flat that skin lotion handled.
C. handle the Body contact face with skin care compositions
When the product that preparation is handled with skin care compositions, with skin care compositions be applied to absorbent device at least a portion of body surface.Can use any application process of uniform distribution cohesive material.Suitable method comprises: printing, the combination of spraying, be coated with, brush (brushing), extruding or these application techniques.
The minimum that will be applied to the skin care compositions on the body contacting surface of articles for use is the effective dose that skin effect is provided to the wearer.The consumption of the skin care compositions that applies depends on multiple factor, comprises not the relative quantity of the surface area of the body contacting surface of handling with skin care compositions, the expection skin effect of skin care compositions etc.The consumption of skin care compositions also can change on whole body contacting surface.For example, some part of body contacting surface can have more or less consumption than the other parts of body contacting surface, comprise the surface portion that does not have any skin care compositions on it.
Skin care compositions can be applied on the whole surface of body contacting surface or optionally be applied on the part of body contacting surface.For example, if skin care compositions is applied on the top flat of absorbent device, the mode that preferably skin care compositions is applied on the top flat of absorbent device should make skin care compositions mainly be distributed on the medial part of top flat.But if skin care compositions is hydrophobic relatively, preferably skin care compositions is not distributed in the fluid passage (as the hole of top flat), and can not stop up the fluid passage and fluid is transferred to the ability in the absorbent article core of lower floor to guarantee top flat.The example of coated pattern comprises bar, point, ring etc.
Can skin care compositions be applied on the Body contact face in any moment of assembly process.For example, can before packing, skin care compositions be applied on the body contacting surface of absorbent device finished product.Also can before body contacting surface and other raw material are assembled into the absorbent device finished product, skin care compositions be applied on this body contacting surface.
Usually fused skin care compositions is applied on the articles for use.Because skin care compositions is melting under ambient temperature, usually it is applied on the body contacting surface of articles for use with the form that adds coating.The fusing point and the other factors of main consideration skin care compositions are determined temperature as the temperature that reduces in the articles for use preparation process.Before being applied on the articles for use, usually skin care compositions is heated to 50 ℃-100 ℃, 60 ℃-90 ℃ temperature range more generally.In case the skin care compositions of fusing has been applied on the articles for use, make said composition cooling and curing on body contacting surface, to form cured coating or film.Preferably, the application process of design should help the cools/solidifies of skin care compositions.With skin care compositions be applied on the body contacting surface example as authorized Roe, Bakes on July 1st, 1997; Be described in the United States Patent (USP) 5,643,588 of the exercise question of Warner for " having diaper ", this patent is incorporated herein by reference through the top flat that skin lotion is handled.
Specifying of treated articles for use produced according to the present invention
The following example has further described and has illustrated the preferred embodiment in the scope of the invention.These embodiment only are used for describing, but never mean and limit the scope of the invention, because without departing from the spirit and scope of the present invention, the present invention can have multiple modification.
Embodiment 1
A. the preparation of skin care compositions
The component of following fusing is mixed preparation water-free skin care compositions (skin care compositions A): by the vaseline of Witco company preparation, trade name Super White Protopet  and the docosanol that is prepared by Henkel company, commodity are called Lanette 22.Super White Protopet  is a vaseline.Alkyl chain length is that the heavy aliphatic hydrocarbon of 27-36 and the ratio of the light aliphatic hydrocarbon that alkyl chain length is 17-26 are 2.3: 1.0.Alkyl chain length is that the heavy aliphatic hydrocarbon of 30-36 and the ratio of the light aliphatic hydrocarbon that alkyl chain length is 20-26 are 1.3: 1.0.Lanette 22 is straight chain C 18-C 24The mixture of primary alconol.Lanette 22 comprises about 70%C 22Aliphatic alcohol, about 20% C 20Alcohol, about 9% C 18Alcohol and about 1%C 24Aliphatic alcohol.Shown in the following Table I of the percentage by weight of these compositions:
Table I
Component Weight %
????Super?White?Protopet ????70
Docosanol ????30
B. by the articles for use of gravure processes preparation through the skin care compositions processing
Skin care compositions A is placed in the jar of the heating of operating under 90 ℃ the temperature.The gravure machine (by Inoue Kinzoku Kogyo Co.Ltd, Shiga, Japan preparation) that is used in bowl temperature then and is 90 ℃ and drum pressure and be operation under the 11.5 gram/square centimeters is applied to Procter with skin care compositions A; Gamble Far East is on the DRI-WEAVE top flat of the Whisper Slim Wing Regular (absorbent device A) that Inc. produces and the remainder (that is skin protection district) of DRI-WEAVE top flat.That is to say that it is that 80 millimeters and countershaft (transverse width) are that 40 millimeters ovate preferentially obtains on the DRI-WEAVE top flat in district that skin care compositions A is applied to main shaft (longitudinal length), applied amount be 2 grams/square metre.The position that preferentially obtains the district at the center of absorbent device A should make main shaft align with the longitudinal centre line of absorbent device A, and countershaft aligns with the cross central line of absorbent device A.Skin care compositions A also is applied on the remainder of DRI-WEAVE top flat of absorbent device A, applied amount be 30 grams/square metre.
Embodiment 2
A. the preparation of skin care compositions
Prepare skin care compositions A according to above description.
B. by the articles for use of gravure processes preparation through the skin care compositions processing
Skin care compositions A is placed in the jar of the heating of operating under 90 ℃ the temperature.The gravure machine (by Inoue Kinzoku Kogyo Co.Ltd, Shiga, Japan preparation) that is used in bowl temperature then and is 90 ℃ and drum pressure and be operation under the 11.5 gram/square centimeters is applied to Procter with skin care compositions A; Gamble Far East is on the DRI-WEAVE top flat of the Whisper Slim Wing Regular (absorbent device B) that Inc. produces and the remainder (that is skin protection district) of DRI-WEAVE top flat.That is to say that it is that 100 millimeters and countershaft (transverse width) are that 50 millimeters ovate preferentially obtains on the DRI-WEAVE top flat in district that skin care compositions A is applied to main shaft (longitudinal length), applied amount be 4 grams/square metre.The position that preferentially obtains the district at the center of absorbent device B should make main shaft align with the longitudinal centre line of absorbent device B, and countershaft aligns with the cross central line of absorbent device B.Skin care compositions A also is applied on the remainder of DRI-WEAVE top flat of absorbent device B, applied amount be 40 grams/square metre.
Embodiment 3
A. the preparation of skin care compositions
Prepare skin care compositions A according to above description.
B. by the articles for use of gravure processes preparation through the skin care compositions processing
Skin care compositions A is placed in the jar of the heating of operating under 90 ℃ the temperature.The contact spreader such as the Meltex EP45 hotmelt spreader head of operation are applied to Procter with skin care compositions A down to be used in 90 ℃ then; Gamble Far East is on the DRI-WEAVE top flat of the Whisper Slim WingRegular (absorbent device C) that Inc. produces and the remainder (that is skin protection district) of DRI-WEAVE top flat.That is to say that it is that 120 millimeters and transverse width are that 50 millimeters rectangular preferentially obtains on the DRI-WEAVE top flat in district that skin care compositions A is applied to longitudinal length, applied amount be 2 grams/square metre.Should make in the position that preferentially obtains the district at the center of absorbent device C and vertically to align, and laterally align with the cross central line of absorbent device C with the longitudinal centre line of absorbent device C.Skin care compositions A also is applied on the remainder of DRI-WEAVE top flat of absorbent device C, applied amount be 40 grams/square metre.
Embodiment 4
A. the preparation of skin care compositions
Prepare skin care compositions A according to above description.
B. by the articles for use of gravure processes preparation through the skin care compositions processing
Skin care compositions A is placed in the jar of the heating of operating under 90 ℃ the temperature.The gravure machine (by Inoue Kinzoku Kogyo Co.Ltd, Shiga, Japan preparation) that is used in bowl temperature then and is 90 ℃ and drum pressure and be operation under the 11.5 gram/square centimeters is applied to Procter with skin care compositions A; The whole DRI-WEAVE top flat (that is skin protection district) of the Whisper Slim Wing Regular (absorbent device D) that Gamble Far East, Inc. produce is gone up rather than preferentially the obtaining in the district of DRI-WEAVE top flat.That is to say that it is that 80 millimeters and countershaft (transverse width) are that 40 millimeters ovate preferentially obtains on the DRI-WEAVE top flat in district that skin care compositions A is not applied to main shaft (longitudinal length).The position that preferentially obtains the district at the center of absorbent device D should make main shaft align with the longitudinal centre line of absorbent device D, and countershaft aligns with the cross central line of absorbent device D.Skin care compositions A also is applied on the remainder of DRI-WEAVE top flat of absorbent device D, applied amount be 30 grams/square metre.
Embodiment 5
A. the preparation of skin care compositions
The component of following fusing is mixed preparation water-free skin care compositions (skin care compositions B): by the vaseline of Witco company preparation, trade name Protopet  1S and the docosanol for preparing by Henkel company, commodity are called Lanette 22.Protopet  1S is a vaseline.Alkyl chain length is that the heavy aliphatic hydrocarbon of 27-36 and the ratio of the light aliphatic hydrocarbon that alkyl chain length is 17-26 are 2.3: 1.0.Alkyl chain length is that the heavy aliphatic hydrocarbon of 30-36 and the ratio of the light aliphatic hydrocarbon that alkyl chain length is 20-26 are 1.7: 1.0.Alkyl chain length is that the heavy aliphatic hydrocarbon of 33-36 and the ratio of the light aliphatic hydrocarbon that alkyl chain length is 23-26 are 1.3: 1.0.Lanette 22 comprises about 70% C 22Aliphatic alcohol, about 20% C 20Alcohol, about 9% C 18Alcohol and about 1%C 24Aliphatic alcohol.Shown in the following Table II of the percentage by weight of these compositions:
Table II
Component Weight %
????Protopet1S ????80
Docosanol ????20
B. by the articles for use of gravure processes preparation through the skin care compositions processing
Skin care compositions B is placed in the jar of the heating of operating under 90 ℃ the temperature.The gravure machine (by Inoue Kinzoku Kogyo Co.Ltd, Shiga, Japan preparation) that is used in bowl temperature then and is 90 ℃ and drum pressure and be operation under the 11.5 gram/square centimeters is applied to Procter with skin care compositions B; Preferentially obtaining in district, flank skin protection district, peripheral skin protection district, preceding skin protection district and the district of skin protection afterwards of the DRI-WEAVE top flat of the Whisper Slim Wing Regular (absorbent device E) that Gamble Far East, Inc. produce.That is to say that it is that 80 millimeters and countershaft (transverse width) are that 40 millimeters ovate preferentially obtains on the DRI-WEAVE top flat in district that skin care compositions B is applied to main shaft (longitudinal length), applied amount be 2 grams/square metre.The position that preferentially obtains the district at the center of absorbent device E should make main shaft align with the longitudinal centre line of absorbent device E, and countershaft aligns with the cross central line of absorbent device E.Skin care compositions B also is applied in the flank skin protection district, peripheral skin protection district, preceding skin protection district and skin protection district, back of the DRI-WEAVE top flat of absorbent device E, applied amount be respectively 40 grams/square metre, 40 grams/square metre, 20 grams/square metre and 20 grams/square metre.
Embodiment 6
A. the preparation of skin care compositions
Prepare skin care compositions B according to above description.
B. by the articles for use of gravure processes preparation through the skin care compositions processing
Skin care compositions B is placed in the jar of the heating of operating under 90 ℃ the temperature.The gravure machine (by Inoue Kinzoku Kogyo Co.Ltd, Shiga, Japan preparation) that is used in bowl temperature then and is 90 ℃ and drum pressure and be operation under the 11.5 gram/square centimeters is applied to Procter with skin care compositions B; Gamble Far East is on the remainder that preferentially obtains district and DRI-WEAVE top flat of the DRI-WEAVE top flat of the Whisper Slim Wing Regular (absorbent device F) that Inc. produces (comprising flank skin protection district, peripheral skin protection district, preceding skin protection district and skin protection district, back).That is to say that it is that 80 millimeters and countershaft (transverse width) are that 40 millimeters ovate preferentially obtains on the DRI-WEAVE top flat in district that skin care compositions B is applied to main shaft (longitudinal length), applied amount be 4 grams/square metre.The position that preferentially obtains the district at the center of absorbent device F should make main shaft align with the longitudinal centre line of absorbent device F, and countershaft aligns with the cross central line of absorbent device F.Skin care compositions B also is applied in the flank skin protection district, peripheral skin protection district, preceding skin protection district and skin protection district, back of the DRI-WEAVE top flat of absorbent device F, applied amount be respectively 60 grams/square metre, 60 grams/square metre, 30 grams/square metre and 30 grams/square metre.
Embodiment 7
A. the preparation of skin care compositions
Following component is mixed preparation water-free skin care compositions (skin care compositions C): by the zinc oxide of Zinc company (America) preparation, commodity USP-1 by name and the pyrogenic silica for preparing by Cabot company, the component of commodity CAB-O-Sil  TS-720 by name and following fusing: by the vaseline of Witco company preparation, trade name Super White Protopet  and the docosanol that is prepared by Henkel company, commodity are called Lanette 22.Under 90 ℃, these materials are mixed by high speed blade mixer (Tokusyu Kika TK Robo Mics operates under 5000rpm).Alkyl chain length is that the heavy aliphatic hydrocarbon of 27-36 and the ratio of the light aliphatic hydrocarbon that alkyl chain length is 17-26 are 2.3: 1.0.Alkyl chain length is that the heavy aliphatic hydrocarbon of 30-36 and the ratio of the light aliphatic hydrocarbon that alkyl chain length is 20-26 are 1.7: 1.0.Alkyl chain length is that the heavy aliphatic hydrocarbon of 33-36 and the ratio of the light aliphatic hydrocarbon that alkyl chain length is 23-26 are 1.3: 1.0.Lanette 22 comprises about 70% C 22Aliphatic alcohol, about 20% C 20Alcohol, about 9% C 18Alcohol and about 1%C 24Aliphatic alcohol.USP-1 is that mean diameter is the zinc oxide of about 0.1-1.0 micron.CAB-O-Sil  TS-720 is the pyrogenic silica that handle with polydimethylsiloxane on its surface.Shown in the following Table III of the percentage by weight of these compositions:
Table III
Component Weight %
????Super?White?Protopet ????67
Docosanol ????30
Pyrogenic silica ????1.0
Zinc oxide ????2.0
B. by the articles for use of gravure processes preparation through the skin care compositions processing
Skin care compositions C is placed in the jar of the heating of operating under 90 ℃ the temperature.The gravure machine (by Inoue Kinzoku Kogyo Co.Ltd, Shiga, Japan preparation) that is used in bowl temperature then and is 90 ℃ and drum pressure and be operation under the 11.5 gram/square centimeters is applied to Procter with skin care compositions C; Gamble Far East is on the remainder (that is skin protection district) that preferentially obtains district and DRI-WEAVE top flat of the DRI-WEAVE top flat of the Whisper Slim Wing Regular (absorbent device G) that Inc. produces.That is to say that it is that 80 millimeters and countershaft (transverse width) are that 40 millimeters ovate preferentially obtains on the DRI-WEAVE top flat in district that skin care compositions C is applied to main shaft (longitudinal length), applied amount be 2 grams/square metre.The position that preferentially obtains the district at the center of absorbent device G should make main shaft align with the longitudinal centre line of absorbent device G, and countershaft aligns with the cross central line of absorbent device F.Skin care compositions C also is applied on the remainder of DRI-WEAVE top flat of absorbent device G, applied amount be 30 grams/square metre.
Embodiment 8
A. the preparation of skin care compositions
Prepare skin care compositions C according to above description.
B. by the articles for use of gravure processes preparation through the skin care compositions processing
Skin care compositions C is placed in the jar of the heating of operating under 90 ℃ the temperature.The gravure machine (by Inoue Kinzoku Kogyo Co.Ltd, Shiga, Japan preparation) that is used in bowl temperature then and is 90 ℃ and drum pressure and be operation under the 11.5 gram/square centimeters is applied to Procter with skin care compositions C; The whole DRI-WEAVE top flat (that is skin protection district) of the Whisper Slim Wing Regular (absorbent device H) that Gamble Far East, Inc. produce is gone up rather than preferentially the obtaining in the district of DRI-WEAVE top flat.That is to say that it is that 80 millimeters and countershaft (transverse width) are that 40 millimeters ovate preferentially obtains on the DRI-WEAVE top flat in district that skin care compositions C is not applied to main shaft (longitudinal length).The position that preferentially obtains the district at the center of absorbent device H should make main shaft align with the longitudinal centre line of absorbent device H, and countershaft aligns with the cross central line of absorbent device H.Skin care compositions C also is applied on the remainder of DRI-WEAVE top flat of absorbent device H, applied amount be 30 grams/square metre.
Should be understood that; restricted and scope described herein is included in all narrower ranges, restriction and the consumption in predetermined restricted and the scope; even and those narrower ranges and the restriction do not list separately, also can claimed this class scope and restriction.
Although describe and explained specific embodiments of the invention, under prerequisite without departing from the spirit and scope of the present invention, carry out various variations for the person of ordinary skill of the art and distortion is clearly.

Claims (10)

1. absorbent device with body surface and medicated clothing surface, this absorbent device is included in top flat that body surface distributes, at the egative film of medicated clothing surface distributed and the absorbent article core that between top flat and egative film, distributes, at least a portion of absorbent device is provided with skin care compositions, it is characterized in that:
Absorbent device has preferentially to obtain to be distinguished and the skin protection district, when being applied to absorbent device on the wearer's body, preferentially obtains at least a portion that the district covers wearer's pudendum;
Skin protection has skin care compositions in the district, and the quantitative ratio of this skin care compositions preferentially obtains big in the district.
2. absorbent device as claimed in claim 1 is characterized in that, preferentially obtain the skin care compositions that has in the district be not more than 20 the gram/square metre, preferably be not more than 12 the gram/square metre, more preferably no more than 4 the gram/square metre.
3. absorbent device as claimed in claim 2 is characterized in that, preferentially obtains not have skin care compositions in the district.
4. absorbent device as claimed in claim 1, it is characterized in that, skin care compositions is arranged on the top flat that preferentially obtains the district, wherein have skin care compositions that part of top flat obtain speed be not less than apply top flat before the skin care compositions obtain speed 70%, preferably be not less than apply top flat before the skin care compositions obtain speed 75%, more preferably be not less than apply top flat before the skin care compositions obtain 85% of speed.
5. absorbent device as claimed in claim 1, it is characterized in that, the skin care compositions that has at least a portion in skin protection district 0.1 the gram/square metre to 100 the gram/square metre between, preferably 0.5 the gram/square metre to 90 the gram/square metre between, more preferably 1 the gram/square metre to 80 the gram/square metre between.
6. absorbent device as claimed in claim 1, it is characterized in that, absorbent device has main part, this main part has at least three districts, these three districts comprise first petiolarea, second petiolarea and the central area between first petiolarea and second petiolarea, wherein preferentially obtain at least a portion that the district comprises central area.
7. absorbent device as claimed in claim 6 is characterized in that, the skin protection district comprises at least a portion of first petiolarea or at least a portion of second petiolarea.
8. absorbent device as claimed in claim 7, it is characterized in that, preferentially obtaining the district is limited by transverse width and longitudinal length, wherein width is that 10 millimeters to 80 millimeters and length are 20 millimeters to 120 millimeters, preferable width is that 20 millimeters to 70 millimeters and length are 30 millimeters to 110 millimeters, and more preferably width is that 30 millimeters to 60 millimeters and length are 40 millimeters to 100 millimeters.
9. absorbent device as claimed in claim 1 is characterized in that, absorbent device has horizontal outward extending flank, and wherein the skin protection district comprises at least a portion flank, and during using absorbent device, this flank is folded.
10. absorbent device as claimed in claim 1 is characterized in that, absorbent device has the peripheral part of the profile that limits absorbent device, and the skin protection district comprises at least a portion of peripheral part.
CN99816743.6A 1999-05-19 1999-10-01 Absorbent article with skin care composition Pending CN1379688A (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US9910986 1999-05-19
WOPCT/US99/10986 1999-05-19
US9911330 1999-05-21
PCT/US1999/011372 WO2000069482A1 (en) 1999-05-19 1999-05-21 Absorbent article with skin care composition
WOPCT/US99/11330 1999-05-21
PCT/US1999/011374 WO2000069481A1 (en) 1999-05-19 1999-05-21 Absorbent article with skin care composition
WOPCT/US99/11374 1999-05-21
WOPCT/US99/11372 1999-05-21

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MXPA01011796A (en) 2003-02-24
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ZA200108816B (en) 2003-07-25
AU4198399A (en) 2000-12-05
MXPA01011793A (en) 2002-04-24
WO2000069481A1 (en) 2000-11-23

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