CN1251534A - Absorbent articles having cuffs with skin-care composition disposed thereon - Google Patents

Absorbent articles having cuffs with skin-care composition disposed thereon Download PDF

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Publication number
CN1251534A
CN1251534A CN97181502A CN97181502A CN1251534A CN 1251534 A CN1251534 A CN 1251534A CN 97181502 A CN97181502 A CN 97181502A CN 97181502 A CN97181502 A CN 97181502A CN 1251534 A CN1251534 A CN 1251534A
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China
Prior art keywords
band
skin care
care compositions
skin
diaper
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Granted
Application number
CN97181502A
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Chinese (zh)
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CN1121241C (en
Inventor
唐纳德·C·罗
托马斯·E·舒尔特
劳拉·G·S·范里杰斯维杰克
格雷切·L·埃尔德
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Procter and Gamble Co
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Procter and Gamble Co
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Publication date
Priority claimed from US08/766,386 external-priority patent/US6156024A/en
Priority claimed from US08/962,312 external-priority patent/US6120488A/en
Priority claimed from US08/962,310 external-priority patent/US6166285A/en
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of CN1251534A publication Critical patent/CN1251534A/en
Application granted granted Critical
Publication of CN1121241C publication Critical patent/CN1121241C/en
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    • 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
    • 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
    • A61F13/45Absorbent 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 shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • 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
    • A61F13/45Absorbent 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 shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
    • 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
    • A61F13/45Absorbent 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 shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49466Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the waist region
    • 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
    • A61L15/22Bandages, 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
    • 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
    • A61L15/40Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing ingredients of undetermined constitution or reaction products thereof, e.g. plant or animal extracts
    • 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
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/74Biological properties of particular ingredients
    • A61K2800/75Anti-irritant

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

Abstract

An absorbent article, such as a diaper, containing cuffs with a skin care composition disposed thereon. The skin care composition disposed on the cuffs is transferable to the wearer's skin by normal contact and/or wearer motion and/or body heat. The skin care compositions disclosed in the present invention are selected to maintain and/or improve the skin health of the wearer upon transfer during use, for example, to provide a skin protective barrier or a therapeutic benefit; to minimize the abrasion between the cuffs and skin in the area where the cuffs contact the wearer's skin, resulting in less skin irritation; to improve BM clean up on the skin, or to improve the barrier properties of the cuffs.

Description

The absorbent device that has the band that is distributed with skin care compositions and methods on it
The application is respectively at application of submitting in December in 1996 on June 27th, 3 days 1 and on August 8th, 1,997 08/766386,08/884069 and 08/908852 continuous part application.Application 08/884069 is the continuous application of the application 08/345159 (now being United States Patent (USP) 5463588) of submission on November 28th, 1994.
The present invention relates to have the band absorbent device of (comprising elastic leg cuff), as diaper, training pants, adult-incontinence articles, sanitary towel, undies etc.More particularly, the present invention relates on band or band and top flat, be distributed with the absorbent device of skin care compositions and methods.By the motion and/or the body heat of normal contact and/or wearer, said composition can be transferred on the skin of wearer.Skin care compositions and methods disclosed by the invention is selected to keep and/or to improve in the use in case the skin health of wearer when shifting; as protective layer of skin is provided or treats benefit; thereby make minimum red stain or the skin irritation of not producing of frictional force between the skin of wearer of band and its contact, improve BM cleaning action on the skin or improve the barrier propterty of band.
Absorbent device such as disposable diaper and incontinence are absorptions or hold bodily exudate with the major function of medicated underpants or underwear.Therefore, the purpose of these class articles for use is medicated clothing or other articles for use that prevent that bodily exudate from making dirty, getting wet or pollution contacts with wearer, as bedding.When body exudates when the thigh of articles for use and wearer or the gap between the waist leak on the adjacent medicated clothing, this series products can not play its most common effect, reason is that body exudates can not be absorbed by articles for use immediately, absorbent device can not keep very next to the shin with wearer, and the result has produced the slit makes effluent leak out this articles for use.For example, urine is tending towards being deposited on the top flat to shove, and urine is moved to the slit between articles for use and the wearer as a result, and urine contacts then with medicated clothing or other article and is absorbed there.In addition, be difficult for by the loose Excreta that absorbent device absorbs often " float " and the surface of Body contact enter slit between articles for use and wearer thigh or the waist then.
Disposable diaper now comprises top flat, egative film, absorbent cores and one or more bands that are positioned and contact with wearer thigh and/or waist, is generally the elasticity band.These elasticity band proofs can prevent usually effectively from holding fluidic diaper wicking and overflowing to the medicated clothing that touches with the diaper side edge, this is because the elasticity band provides a barrier layer between diaper edge and the clothes that is in contact with it, in addition, usually shank or the waist at wearer provides the liner effect on every side, thereby keep the sealing of shank and waist, make the slit minimum.Yet, because concentrating on a narrow and small zone, the power that elastomeric element produces cause local pressure excessive, these elasticity bands more tend to make the skin of wearer to produce indenture and vestige.Because skin is easy to damage even to the slight pressure or the sensitivity of rubbing action, these skin effects are for the product especially severe of baby and the old adult's wearing of incontinence.Because the skin that is caused by this series products blocks, these skin effects further add certificate.Diaper may cause the excessive hydration of skin to the obstruction that skin produces.Therefore, excessively the skin of hydration is more vulnerable to because proper motion and the damage that causes with friction that elastic cuffs strap band produces.Usually known, excessively the skin of hydration is easier to cause cutaneous disorder, comprises diaper rash, erythema, heat rash, scratch, pressure speckle and the loss of skin protection layer.The skin of abrasive excessive hydration has reduced protective, thereby further causes the increase of diaper rash.21 C.F.R 333.503 diaper rash is defined as " cause the inflammation skin condition at diaper position (perineum, buttocks, lower abdomen and interior strand) by following one or more factors: moisture content, obstruction, stimulation, with urine and/or fecal matter or both Continuous Contact or machinery or chemical stimulation ".In order to solve the problem of the cutaneous disorder relevant with other absorbent device with dressing diaper, wearer is before using absorbent device, and nursing staff or wearer use skin care and/or treatment product usually at buttocks, genitals, anus or other position.This method often comprises that caregiver is applied to the skin care product on the skin that is coated onto wearer on hand then.For eliminate this waste, easily make dirty, the time-consuming and step easily forgotten, attempt preparation contains skin-care substances on the articles for use top flat absorbent device.
Being used for diaper products is mineral oil with the material of giving soft protective layer.Mineral oil (being also referred to as Albolene) is the mixture of various liquid hydrocarbons that distills the petroleum distillate of high boiling point (that is, 300 ℃-390 ℃).Mineral oil room temperature for example 20 ℃-25 ℃ be liquid, when being administered on the diaper, have relative fluidity and mobility.Because mineral oil is fluid and movably in room temperature,, enter diaper inside but move so be difficult for remaining positioned on the diaper surface.Therefore, need on diaper, use the mineral oil of higher amount so that desired treatment that obtains or protective layer effect to be provided.This not only makes the cost up of the diaper products that these are treated, and produces other illeffects, comprises the absorbability that reduces lower floor's absorbent cores.
Even do not increase the amount of mineral oil,, coating mineral oil has other harmful effect in case being easy to animal migration.For example, the mineral oil that applies is transferred to the packaging material of treated diaper products or enters and pass through this packaging material.This just needs the protection type packaging film to make dirty or seepage from diaper products to be avoided mineral oil.
People's such as Duncan United States Patent (USP) 3 489 148 has been described a kind of baby diaper that comprises hydrophobicity and oleophobic property top flat, and wherein a part of top flat scribbles the discontinuous film of oil-containing material.The major defect of the disclosed diaper of this article is hydrophobicity and oleophobic property top flat in that to promote urine to transfer to aspect lower floor's absorbent cores slower.
Except the migration problem that is put in fluid composition on the top flat to be run into, prior art do not recognize and uses the caused skin nursing harm of band, thereby do not recognize that the mode of handling band makes the skin care compositions and methods that distributes it on remain on the band and transfers to effective dose on the skin of user with the raising skin care benefits yet.Prior art does not recognize that the top flat of individual processing articles for use may not necessarily transfer to compositions all main region of wearer skin yet.
Therefore, the absorbent device that need provide a kind of and have band, be distributed with skin care compositions and methods on band is to improve particularly in use the skin care benefits with the contacted skin area of wearer.This skin care compositions must be able to be transferred on the skin of user so that these skin benefits to be provided, and can't suppress the function of band in these products.
Therefore, need provide the diaper products or other absorbent device that have one or more bands, be distributed with skin care compositions on band, these class articles for use (1) have ideal treatment or overcoat benefit; And/or (2) do not need a large amount of relatively skin care compositionss of liquid (as mineral oil) that at room temperature are; And/or (3) can not produce adverse influence to the diaper products hygroscopicity; And/or (4) need not special packing or packaging protective material.
Therefore, the purpose of this invention is to provide a kind of diaper or absorbent device with one or more bands, on band, be distributed with skin care compositions, wherein at least a portion compositions is transferred on the skin of wearer to provide desirable skin protection benefit (comprise and reduce skin irritation and red stain), treatment benefit (to comprise and reduce erythema and/or diaper rash and/or reduce the caking property of BM to skin, thereby improve the easiness of BM cleaning.Band held/safeguard function when another object of the present invention was improvement use hydrophobicity skin care compositions.
Use the present invention can reach these and other objects, read after hereinafter open, it is clearer that these purposes will become.
The present invention relates to a kind of absorbent device such as disposable diaper that has one or more bands, be distributed with (scribble or transportable) skin care compositions in the surface of band.Importantly, skin care compositions used herein is easy to transfer on the skin of wearer by common contact, wearer motion and/or body heat.In case transfer on the skin, skin care compositions just can provide ideal treatment and/or overcoat benefit, produces the caking property of red stain, erythema, diaper rash, skin irritation and/or reduction BM and wearer skin hardly, thereby makes BM be easy to clean.If use the hydrophobicity skin care compositions, described herein skin care compositions can improve holding/barrier propterty of band, thereby improves its leakage barrier.Therefore this hydrophobicity skin care compositions can have motility because the another kind of method that obtains ideal holding/barrier propterty is provided when using non-woven material design band, cause material cost to reduce.
The term of this paper " band " comprises all or some combination in lower limb hoop (comprising protective band, liner band, its combination and distortion), horizontal band and pocket/backing plate, side plate and waist hoop (comprising that the waist wing, belt, waist are buckled (waistcap) and whole waist is buckled/belt) and these bands.
Main is that the skin that in a single day skin care compositions as herein described transfers to wearer just can provide protection and/or treatment benefit afterwards, comprises and reduces erythema and/or diaper rash.The effect of this skin care compositions can also make band drop to minimum with scratch between its skin area that is contacted, thereby reduces erythema and/or skin irritation.In addition, the protective layer on the wearer skin can reduce the cohesive of BM and skin, thereby is easy to clean BM.
As discussed below, skin care compositions of the present invention preferably has fusing and distributes, and the result is in their relative fixed of room temperature and be confined on the band, under body temperature, can be transferred on the wearer, and under extreme storage requirement and not exclusively be liquid.In these embodiments, need less skin care compositions to produce the skin protection benefit of wishing.In addition, when the treated product of packing the present invention, need not special overcoat or packaging material.
In a preferred embodiment, absorbent device of the present invention comprises the skin care compositions of distribution (coating and transferable) on band and top flat.The applicant finds that these preferred articles for use have increased compositions and shifted on wearer skin, thereby increases treatment discussed in this article and/or protection benefit.Therefore, the increase along with the amount of the skin coverage rate of transferring to given skin part (being skin area) and/or compositions just can improve transfer.
Fig. 1 is the plane graph of disposable diaper embodiment of the present invention, and part cuts to disclose understructure.
Fig. 2 is the partial sectional view along Fig. 1 transversal 2-2.
Fig. 3 is the partial sectional view along Fig. 1 transversal 3-3.
Fig. 4 is the perspective view of the absorbent device of disposable diaper of the present invention.
Fig. 5 is the sketch map that compositions of the present invention is applied to the method for optimizing of diaper protective band.
Fig. 6 is the sketch map that compositions of the present invention is applied to the other method of diaper protective band.
Fig. 7 is the partial sectional view of another embodiment of the present invention.
Fig. 8 is the drawing in side sectional elevation of another embodiment of the present invention.
Fig. 9 is the plane graph of another embodiment of the present invention.
Figure 10 is the partial sectional view of another embodiment of the present invention.
Figure 11 is the expression user sanitary towel of the present invention of dressing and the local crown figure of medicated underpants.
Term herein " comprises " and refers to various parts, composition or the step that can jointly adopt when of the present invention implementing. Therefore, term " comprise " comprise more restrictive term " basically by ... form " and " by ... composition ".
Term herein " skin care compositions " refers to comprise any composition of one or more reagent, and these reagent are transferred to the benefit that treatment and/or protection skin can be provided behind the skin of wearer by articles for use. Representational material is talked about hereinafter in detail.
Except as otherwise noted, all percentages used herein, ratio and ratio are by weight.
A. absorbent device
Term herein " absorbent device " refers to absorb and hold the articles for use of health effluent, more particularly, refers to be positioned on the wearer skin in order to absorb and to hold from the various effluents of health discharge. Term " disposable " is used for being described in after the use once, no longer washing or the absorbent device that reclaims or re-use as absorbent device. The example of disposable absorbent device comprises women sanitary articles, such as sanitary shorts, sanitary napkin and scanties lining; Diaper; The incontinence product is such as panties or underwear; The diaper supporter; The diaper insert; Wear formula diaper and training pants etc.
Disposable absorption articles for use generally comprise a base, and this base comprises outer cover layer and wrap in this outer intratectal absorption core, and this outer cover layer comprises liquid top flat and the liquid-tight egative film that is connected with top flat, and described absorption core is preferably placed between top flat and the egative film. Disposable absorbent device and parts thereof comprise the arbitrary layer of top flat, egative film, absorption core and these parts having two first type surfaces (first surface and second surface), are commonly referred to health face and clothing face. " health face " used herein (be also referred to as and the health contact surface or with skin contact surface) refer to towards wearer's body or with it adjacent article or the surface of parts, and " clothing face " is the opposite side away from wearer, when dressing upper disposable absorbent device, the position of clothing face is towards the clothing of wearer.
Absorption core, top flat and the stock footage that is used for disposable absorbent device discussed in following description usually. Be to be understood that this general description except the parts that are suitable for other disposable absorbent device described herein, also be suitable for the parts of the specific absorbent device shown in Fig. 1-4, further be described below.
Usually, absorbing core can absorb or liquid hold-up (for example, menstrual fluid, urine and/or other health effluent). Absorb core preferably compressible, can fit, to wearer skin do not cause stimulation, absorb core can all size and shape prepare (such as, square, oval, hourglass shape, T-shaped, splayed, symmetric figure, asymmetric shape etc.). Except absorption composite of the present invention, absorb core and comprise that also any is usually used in the material of the various liquid-absorbings of absorbent device, such as the wood pulp of pulverizing, it is called air felt (airfelt) usually. The example that is used for other suitable absorbing material of absorption core comprises wrinkling cellulose liner; Meltblown polymer (comprising coform); Chemistry stiffened, modification or crosslinked cellulose fibre; Synthetic fibers such as curling polyester fiber; Peat suede (peat moss); Chiffon (comprising chiffon silk (tissue wrap) and tissue layer compound); Absorbent foam; Absorbable sponge; Super absorbent polymer; Absorbability gel material; Or any suitable material or its combination, and mixture.
The configuration and the structure that absorb core (for example can change, the caliper zones that absorbs core can change and/or its to be distributed as the center thicker, absorb core and have the hydrophily gradient, absorb the gradient (such as the super-absorbert gradient) of composite, lower averag density and than harmonic(-)mean quantification area (such as collecting region); Or comprise one or more layers structure), however the total absorbability that absorbs core should be compatible with the expection application target with the design load of absorbent device. In addition, the size of absorption core can change to satisfy the needs (such as diaper, incontinence pad, training pants, scanties lining, sanitary napkin commonly used and napkin for sexual life) of different purposes and the needs (from the baby to the adult) of different wearers with wettability power.
Absorbent cores can comprise other absorbing component that is usually used in the absorbent device, and for example prime coat (dustinglayer), wicking or collecting layer (processing layer shoves) or secondary top flat are to increase the comfort of wearer.
Top flat is preferably submissive, and has soft hand feeling, and the skin of wearer is not caused stimulation.In addition, top flat is a fluid permeable in some zone at least, makes liquid (as menstruation and/or urine) facilitate penetration of its thickness.Suitable top flat can be made as weaving and non-woven material (for example nonwoven web) (non-woven material that comprises opening) by various materials; Polymeric material (thermoplastic film that thermoplastic film, opening plastic foil and the water law that is shaped as opening is shaped); Porous foam; Reticulated polymer foam; The weblike heat plastic film; With the thermoplasticity gauze.Suitable weave with non-woven material fibrous by natural fiber (as timber or cotton fiber), synthetic fibers (as polymer fiber, as polyester, polypropylene or polyethylene fibre), two composition, or natural and combinations synthetic fibers.If top flat comprises nonwoven web, can make this non-woven fabrics by various known technology.For example, can carry out spunbond, combing, wet-laying, meltblown, water law is tangled, water law is shaped (hydroformed), water law opening and above-mentioned technology combination etc. to net.
Egative film is impervious in the crotch area of absorbent device to liquid (as menstruation and/or urine) at least preferably, is preferably made by thin plastic foil, but also can adopt other flexible liquid-tight material.Term used herein " flexibility " is meant submissive and is easy to the material of fitting with the health bodily form and profile.Egative film prevents the articles for use that ejection that absorbent cores absorbs and holds is got wet and contacted with absorbent device, as sheet, medicated underpants, nightwear and underwear.Egative film can comprise weaving or non-woven material, polymeric film (as polyethylene or polyacrylic thermoplastic film) or composite (as the non-woven material of coating or the non-woven material of filming).Suitable egative film is that thickness is the polyethylene film of 0.012mm (0.5 mil) to about 0.05lmm (2.0 mil), its representational product is by Cincinnati, the Clopay company of Ohio is with P18-1401 brand, Terre Haute, and the Tredegar Film Products of Indiana produces with the XP-39385 brand.Egative film is preferably handled so that the outward appearance as cloth to be provided more through embossing and/or delustring.In addition, egative film can allow steam see through (that is, egative film is a breathability) from absorbent cores, can prevent that still ejection from passing through egative film simultaneously.The example that is suitable for breathability egative film of the present invention is disclosed in United States Patent (USP) 5,571,096, and " absorbent device " with breathability side plate, on November 5th, 1996 was authorized Dobrin, Davis and Weirich, this patent is incorporated herein by reference).The designing institute decision that the size of egative film is determined by the size and the selected absorbent device of absorbent cores.
The position of egative film and top flat is medicated clothing face and the health face that is respectively adjacent to absorbent cores.Absorbent cores preferably adopts known those connectors of prior art to link to each other with arbitrary known method and top flat, egative film or both.Yet, embodiment of the present invention comprise whole absorbent cores not with top flat, egative film or scheme that both link to each other.
For example, egative film and/or top flat can be fixed to absorbent cores with line of discontinuity, helical or the point of even continuous adhesive layer, the adhesive phase that becomes pattern or one group of binding agent or bond each other.Find gratifying binding agent by St.Paul, the H.B.Fuller company of Minnesota produces with HL-1258 or H-2031 brand.Connector preferably includes adhesive filaments patterns of openings network, and it is disclosed in the United States Patent (USP) 4 573 986 that licensed to Minetola etc. in March 4 in 1986, and it is incorporated herein by reference.The representative example of the connector of this long filament patterns of openings network comprises several lines of the adhesive filaments of coiling pattern, its United States Patent (USP) 3 911 173 (authorized Sprague on October 7th, 1975, Jr.), the apparatus and method shown in United States Patent (USP) 4 785996 (authorizing people such as Zwieker on November 22nd, 1978) and the United States Patent (USP) 4 842 666 (authorizing Werenicz on June 27th, 1989) in addition explanation.Above-mentioned patent is incorporated herein by reference.In addition, connected mode can comprise hot adhesion, pressure bonding, ultra-sonic welded, dynamic power machine bonding and any other suitable connected mode, or the combination of these connected modes well known in the prior art.
A kind of preferred disposable absorbent article is a diaper, has wherein used the present invention's " treated band " (" treated band " used herein is meant the band that is distributed with one or more skin care compositionss thereon).Term used herein " diaper " is meant the absorbent device that the baby and the common lower part of the body of incontinent person are dressed.In other words, term " diaper " comprises baby diaper, training pants, adult-incontinence articles etc.The present invention is also applicable to the disposable products of other type, as contains the sanitary towel and the scanties lining of band.
Fig. 1 is the plane graph of diaper 20 of the present invention preferred embodiment of (promptly removing all elastic shrinkage) under the not contraction state that flattens.The part-structure of this diaper is cut to clearly show that the structure of diaper 20, and the part of diaper 20 contact wearers is towards observer (health face).Diaper 20 shown in Figure 1 has front waist region 22, back waist region 24, crotch area 26 and peripheral part.This peripheral part is limited by the outside of diaper, wherein vertically the limit be labeled as 30, the end limit be labeled as 32.Diaper 20 has cross central line (being labeled as 34) and longitudinal centre line (being labeled as 36) in addition.Diaper 20 comprises base; Preferably include the fixed system of a pair of banded fixture 54 (tape-tab fastener) and bridge piece (1anding member) 55; The sealing band 56 that respectively comprises a flank 58 and wing elastic component 60; Comprise having proximal edges 64, far lateral side 66 and end 74 stop band spare 63 stop band 62; And the elastomer isolators 76 of separator as being used for far lateral side 66 and top flat are separated.This base comprises that (i) comprises the outer cover of liquid top layer 38 and liquid-tight bottom 42 and (ii) have the absorbent cores 44 of side 46.Diaper 20 also comprises in addition and is used for and will respectively stops the fastening sealing member 78 of end 74 sealings of band 62.Although each parts of diaper can be assembled by various known frame modes, preferred diaper configurations is generally described in the United States Patent (USP) 4 695 278 that JIUYUE in 1987 was authorized Lawson on the 22nd, and this patent is incorporated herein by reference.
Fig. 1 represents the preferred version of diaper 20, and wherein top flat 38 and egative film 42 extend jointly, and its length and width dimensions are usually greater than absorbent cores 44.Thereby top flat 38 links to each other with egative film 42 and overlays the periphery that forms diaper 20 on the egative film 42.
Diaper 20 has forward and backward lumbar region 22 and 24, and it extends to the cross central line 34 of diaper 20 from the end limit 32 of periphery respectively.The lumbar region comprises diaper 20 parts that center on the wearer waist when dressing.Crotch area 26 is diaper 20 parts between the lumbar region, is included in when dressing, between thigh and cover diaper 20 parts of the wearer lower part of the body.
As shown in Figure 1, skin care compositions 72 is distributed in and respectively stops on the band 62, in use is easy to be transferred on the skin of wearer thereby be preferably distributed in the body surface that stops band.Shown in scheme in, skin care compositions 72 preferably distributes in crotch area 26 at least near far lateral side 66, more preferably distributes on far lateral side 66.Stop that band 62 most preferably comprises one or more skin care compositions 72 that distributes on it.In such scheme, 72 of skin care compositionss are distributed in part to be stopped on the band 62.For some skin care compositions, guarantee can not to obtain the elasticity creep that the interaction by skin care compositions and binding agent causes thereby avoid that preferably skin care compositions is applied to the part that stops band adjacent with elastomer isolators.As shown in Figure 1, in preferred scheme, skin care compositions 72 is not distributed in the part of elastomer isolators 76 ends in the contiguous front waist region, but can not be distributed in back waist region end adjacent areas yet.In addition, can use the binding agent compatible, thereby the distribution of end on band of skin care compositions relative resilient separator can not be restricted with skin care compositions.As discussed herein, also skin care compositions can be coated the medicated clothing face that stops band, then " shift by " thus stop the hydrophobicity of band and be distributed to the health face to the body surface increase so that the skin protection benefit to be provided.In addition, skin care compositions can be coated on the other parts that stop band, whole any other parts that stop band, elastomer isolators and band.Skin care compositions also can any pattern form (comprising discontinuous or continuous pattern) or any amount distribution hereinafter to discuss.
Diaper 20 shown in Figure 2 has medicated clothing face 86 and the health face 84 relative with medicated clothing face 86.The health face 84 of diaper 20 is included in and is positioned at diaper 20 parts adjacent with the health of wearer in the use.That is, health face 84 is formed by at least a portion top flat 38 and other parts (comprising those parts of joining with top flat 38) usually.Medicated clothing face 86 comprises diaper 20 parts that are positioned in use away from wearer's body.That is, medicated clothing face 86 is normally formed by at least a portion egative film 42 and other parts that comprise the parts that can be connected with egative film 42.
Fig. 2 is that it has described the diaper configurations of diaper 20 back waist region 24 along the part sectioned view of Fig. 1 line 2-2 intercepting.The diaper configurations that should be appreciated that the diaper configurations of front waist region 22 and back waist region 24 is basic identical.Absorbent cores comprises absorbed layer 48, and it is surrounded by tissue layer 50 and 52 fully.Absorbent cores 44 is between top flat 38 and egative film 42.Top flat 38 and egative film 42 extend the side 46 of absorbent cores 44 to form flank 58.Preferably be in the same place as adhesive by wing fixture 88 in the overlay region of top flat 38 and egative film.In preferred scheme, the elasticity wing member does not extend into back lumbar part district 24 and therefore do not form the sealing band in this zone.The shown band that stops comprises separation member, stops band spare 63 that it is fixed in top flat 38.To stop that with nearside fixture 92 band spare 63 is fixed in top flat 38 and has formed proximal edges 64.The medicated clothing face 68 (being also referred to as the inner surface that stops band) that stops band 62 is fixed to health face 40 by sealing member 78.Therefore, with far lateral side 66 sealings (that is, far lateral side does not separate with health face 40).Should be noted that elastomer isolators is not arranged in this zone, because far lateral side 66 is not that design separates with health face 40 in the lumbar region.Therefore, stop band neither open, neither limit bodily exudate flowing in this zone.In this special scheme, skin care compositions preferably is not distributed in stopping on the band of back waist region.
Fig. 3 is the partial sectional view along the line 3-3 intercepting of Fig. 1, the diaper configurations of the crotch area 26 when being shaped before its expression wearer uses (, diaper 20 is subjected to elastic shrinkage).Absorbed layer 48 shown in absorbent cores 44 comprises, it is surrounded by tissue layer 50 and 52 fully.Absorbent cores 44 is between top flat 38 and egative film 42.Top flat 38 and egative film 42 extend the side 46 of absorbent cores 44 to form flank 58.Preferably are in the same place as adhesive by wing fixture 88 in top flat 38 and egative film 42 synergetic zones.Top flat 38 and egative film 38 also encase the elasticity wing member 60 adjacent with vertical limit 30.Elasticity wing member 60 preferably is fixed in the flank 58 that is formed by top flat and egative film by flexible fastening piece 90.Form the contractile sealing band 56 of elasticity by flank 58 and elasticity wing member 60.The sealing band has when diaper is worn towards the health face 57 of wearer skin and the medicated clothing face 59 relative with health face 57.Shown stop band be by with separation member, stop that band spare 63 is fixed on the top flat 38 between the side 46 that preferably is in elasticity wing member 60 and absorbent cores 44 and form.To stop by nearside fixture 92 that band spare 63 is fixed to and form the proximal edges 64 that stops band 62 on the top flat 38.Elastomer isolators 76 is enclosed in the recessed road, when the end that stops band spare 63 forms this recessed road backward during doubling.By flexible fastening piece 94 elastomer isolators 76 is fixed in this recessed road.Elastic shrinkage effect through elastomer isolators 76 will stop that the far lateral side 66 of band separates with health face 40.The shown band that stops can limit, hold and keep bodily exudate up to remove diaper 20 from wearer.Thereby skin care compositions shown in Figure 3 72 is distributed in the health face 70 of band 62 and in use is transferred on the skin of wearer.
Diaper of the present invention can have many known structures, adjusts its absorbent cores to be suitable for the present invention.Representational structure is generally described in US 3 860 003 (authorizing Buell on January 14th, 1975); US5,151,092 (JIUYUE was authorized people such as Buell on the 29th in 1992); US 5 580 411 (December was authorized people such as Nease on the 3rd in 1996); US 5 569 232 (authorizing people such as Roe on October 29th, 1996) and US5 569 234 (authorizing people such as Buell on October 29th, 1996).These patents are incorporated herein by reference.
Diaper base shown in the accompanying drawing comprises the main part (receiving member) of diaper.Base comprises absorbent cores and preferred outer cover at least, and this outer cover comprises top flat and egative film.If absorbent device comprises active cover and lining, base generally includes this cover and lining (that is, base comprises one or more layers material to form this cover, and lining comprises absorbent composite such as top flat, egative film and absorbent cores simultaneously) so.For the monolithic devices absorbent device, base comprises that the main structure of diaper and additional parts are to form the composite diaper structure.Therefore, the diaper base comprises top flat, egative film and absorbent cores.
The top flat 38 that is particularly suitable for diaper 20 can adopt the fabric field known method of ordinary person to carry out combing and heat bonding.The gratifying top flat of the present invention comprises the hand pulling length polypropylene fibre at 2.2 dawn.Term used herein " hand pulling length fiber " is meant the fiber of length at least about 15.9mm (0.625 inch).The quantitative of preferred top flat is about 14-25g/m 2Suitable top flat is by the Veratecinc. of Walpole Mass., and the branch company of company (international paper) produces with the P-8 trade mark.Another preferred top flat is quantitatively to be 22g/m 2Spunbonded nonwoven, it can be by Simpsonville, Fiberweb North American Corp. of S.C. obtains with 9694 trades mark.
The top flat 38 of diaper 20 is preferably made to promote liquid (as urine) to pass top flat fast by water wetted material.If top flat is a hydrophobic material, preferred the health face or the part health face of top flat make liquid pass top flat apace through hydrophilicity-imparting treatment at least.This flows out top flat and is not absorbed the probability that wicking is received without the top flat suction with regard to having eliminated body exudates.Handle top flat with surfactant and can give its hydrophilic.The appropriate method of handling top flat with surfactant comprises with surfactant spraying top sheet materials with in this material immersion surfactant.More going through that this hydrophilic is handled sees that (its exercise question is " absorbent device with multi-layer absorber layer " to United States Patent (USP) 4 988 344, authorized people such as Reising on January 29th, 1991) and United States Patent (USP) 4 988 345 (it is entitled as " absorbent device with quick collection absorbent cores ", authorized Reising on January 29th, 1991), described patent is incorporated herein by reference.
In preferred version as herein described, also can be distributed with skin care compositions on the top flat of absorbent device.Representational treated top flat is described in US 5 643 588 and (is entitled as " diaper with top flat of handling through washing liquid ", authorized Roe, Bakes﹠amp on July 1st, 1997; Warner) and US 5 635 191 (be entitled as and " have the diaper of handling the top flat contain silicone emollients through washing liquid, authorized Roe﹠amp on June 3rd, 1997; Mackey).These patents are incorporated herein by reference.The repeated use of the absorbent device of the top flat through having such processing carries the method for skin care compositions to be disclosed in following document: Application No. 08/926532 (P﹠amp; G case numbers 6823), is entitled as " method that keeps or improve skin health ", submits to people such as Elder name in JIUYUE in 1997 10 days; Application No. 08/,926 533 (P﹠amp; G case numbers 6822), is entitled as " method of improving skin ", submits to Van Rijswijck name in JIUYUE in 1997 10 days; And Application No. 08/,908 852 (P﹠amp; G case 5494CR), is entitled as " diaper ", submits to people's such as Roe name on August 8th, 1997 with top flat of handling through washing liquid.Above-mentioned each patent application is incorporated herein by reference.As described herein, the skin care compositions that is distributed on band and the top flat will help skin care compositions is transferred on the bigger skin of surface area with respect to only handling band.In addition, use these two parts and relatively large skin care compositions can be delivered to the skin care compositions of specific position of wearer and/or transmission different dosage form to reach different skin benefits.
In the preferred diaper scheme of this paper, egative film 42 has improved hourglass shape, and it extends absorbent cores along whole diaper periphery.Egative film is preferably softish, the reticular lamination carbon material of dry goods, comprises optionally the forming polymer film and the nonwoven web of opening.This breathable backsheet is described in greater detail in the United States Patent (USP) 5 571096 of authorizing people such as Dobrin on November 5th, 1996, and it is incorporated herein by reference.
Absorbent cores 44 can be any size and shape that is complementary with diaper 20.A preferred diaper 20 has asymmetric, improved T shape absorbent cores 44, has the ear end in first lumbar region, but has common square configuration in second lumbar region.Representational absorbing structure as absorbent cores of the present invention has obtained extensive approval and has obtained commercial success.This absorbing structure is described in the following document: United States Patent (USP) 4610678, be entitled as " high density absorbing structure ", and JIUYUE was authorized Weisman etc. on the 9th in 1986; United States Patent (USP) 4 673 402 is entitled as " absorbent device with double-deck core ", authorizes people such as Weisman on June 16th, 1987; United States Patent (USP) 4 888 231 is entitled as " absorbent article core with prime coat "), December was authorized Angstadt on the 19th in 1989; European patent application 640330, P﹠amp; G, March 1 nineteen ninety-five is open; And United States Patent (USP) 4 834 735, be entitled as " having high density absorbing component " than low-density and low quantitative collection district, authorized people such as Alemany on May 30th, 1989.Absorbent cores also can comprise the twin-core system, this twin-core system comprises being positioned to absorb and stores on the core, collection/distribution core of making by the chemicosolidifying fiber, its detailed content is seen United States Patent (USP) 5 234 423 (being entitled as " absorbent item with elasticized waistand and high-absorbable "), authorized people such as Alemany on August 10th, 1993) and United States Patent (USP) 5147345 (be entitled as the highly efficient absorbent article of usefulness " incontinence handle ", JIUYUE was authorized Young, LaVon and Taylor on the 15th in 1992).All these patents are incorporated herein by reference.
In preferred scheme, each band of diaper 20 comprises the lower limb band, comprises stopping that band 62 and/or sealing band 56 are to improve the performance of holding of liquid and other bodily exudate.These bands can be made different shapes.Diaper 20 can comprise that also band with elasticized waistand (not shown) and/or elastomeric side panels (not shown) is to provide diaper 20 effect and more effective application more next to the shin.These bands can be handled with skin care compositions.
Each lower limb hoop can have several different modes to reduce seepage in lower limb district body exudates (the lower limb hoop can and be called the bottom bands of trouser legs, flank sometimes, stops band, elastic leg cuff, sealing band or elasticity band).US 3 860 003 discloses a kind of disposable diaper, and this diaper provides a collapsible legs opening with flank and one or more elastic components to obtain elastic leg cuff (sealing band), is incorporated herein by reference.US 4909803 has described a kind of performance of holding with disposable diaper of " uprightly " elastic wings (stopping band) with improvement lower limb district, this patent is entitled as " disposable absorbent article with elastic wings ", authorize people such as Aziz March 20 nineteen ninety, is incorporated herein by reference.US 4 695 278 discloses a kind of two bands disposable diaper of (comprise the sealing band and stop band) that has, and this patent is entitled as " absorbent device with two bands ", and JIUYUE was authorized Lawson on 22nd in 1987, was incorporated herein by reference.Although the configuration of each lower limb hoop can be with above-mentioned any bottom bands of trouser legs, flank, stop that band or elasticity band are identical, preferably each lower limb hoop has hereinafter described in detail band 62 and the sealing band 56 of stopping.
Stop that respectively band 62 is for having the flexible element of proximal edges 64, far lateral side 66, medicated clothing face 68 (being also referred to as inner surface) and health face 70 (being also referred to as outer surface).Medicated clothing face 68 is towards the diaper positioned internal, and health face 70 then is the skin of wearer when dressing diaper.Stop that band 62 can be by various manufacture of materials, as polypropylene, polyester, artificial silk, nylon, foam, non-woven fabrics, plastic foil, formed film and elastica or foam.Available various production technology is come production barrier cuff band.For example, stop band 62 can through weave, non-woven, spunbond, spunbond-as to melt and spray-spunbond, combing, coating, stratification etc.Stop that preferably band 62 comprises that the polypropylene material that does not contain finishing agent or surfactant is to give opaque liquid.Representative polypropylene fibre non-woven material is produced with Celestra by Crown Zellerbach company.Preferred especially non-woven material is the adhesive-bonded fabric through combing, and it can be by Landisville, and the PGI of New Jersey obtains with 67700 trades mark.In addition, this material can be by Peine, the adhesive-bonded fabric that the Corovin GmbH of Germany provides with the MD 300A trade mark.In addition, owing to be used for the present invention's hydrophobicity skin care compositions, stop that band can be made by hydrophilic material, and be distributed with hydrophobic skin care compositions thereon to improve its barrier propterty.
As shown in figs. 1 and 3, stop band 62, particularly proximal edges 64 is positioned near the inboard on vertical limit 30, and is adjacent with sealing band 56 and be preferably placed at its inboard.Term " inboard " is meant towards the direction of the diaper centrage parallel with diaper 20 each limit (being distributed as 34 or 36), along each limit of diaper specific sealing band can be set.Stop that band 62 and sealing band 56 are adjacent with to the more effective dual restriction of the mobile generation of bodily exudate.Stop that thereby band is preferably placed at the inboard that seals band 56 and makes ejection, the loose fecal matter that particularly is difficult for being absorbed and floating on the health face 40 contacts with stopping band 62, before stopping that band 62 and sealing band 56 contact.More preferably, stop band 62 between the elasticity wing member 60 and diaper 20 longitudinal centre lines 36 of sealing band 56, most preferably between the elasticity wing member 60 and side 46 of the absorbent cores 44 of diaper 20 crotch area 26.
Proximal edges 64 and far lateral side 66 are spaced from each other and limit the width that stops band 62.That proximal edges 64 and far lateral side 66 are respectively is parallel, non-parallel, linear type or shaped form.In addition, stop that band 62 can have various cross section, comprise circle, square, square or any other shape, as shown in Figure 3.Thereby preferred proximal edges 64 and far lateral side 66 be parallel to each other and linear mode separate provide have an even width stop band 62.
Preferred diaper 20 shown in Fig. 2 and 3 have be connected to top flat 38 stop band 62.Term " is connected to " and comprises and will stop that band 62 is fixed to any method of diaper 20, comprise following embodiment: (1) stops that band 62 is parts of opening in one minute, its proximal edges is fixed on the top flat 38 (promptly whole) directly or indirectly, and (2) stop that band 62 and top flat 38 are made by same parts or material makes proximal edges 64 be the successive undivided parts of top flat (being one).Stop that band 62 also can be connected on other parts of the combination of flank 58, egative film 42, absorbent cores 44, top flat 38 or these parts or diaper 20.In preferred diaper 20, stop that band and top flat 38 are all-in-one-piece.Monoblock type stops that band preferably stops that by strip material band spare 63 forms, and this stops that band spare 63 is fixed on the top flat by nearside fixture 92, will stop that the end of band spare 63 back is folded to form far lateral side 66.
Far lateral side 66 is preferably placed at the inboard of proximal edges 64 with the more effective barrier effect of mobile generation to ejection.The inboard that far lateral side 66 is remained on proximal edges 64 by closure member 78 is to avoid their inversions.Although far lateral side 66 can otherwise distribute with respect to proximal edges 64, these positions are not preferred.
Preferred far lateral side 66 does not link to each other with any other parts in the crotch area at least 26 of diaper 20, makes the health face 40 of itself and top flat 38 separate, thus the raising articles for use hold performance." separating " used herein comprises following scheme: the health face 40 of far lateral side 66 relative top flats 38 is in one or more positions, and is adjacent with health face 40 when including.When far lateral side 66 and a sheet separate as much as possible (being in the elastic shrinkage state), the distance between the health face 40 of far lateral side 66 and top flat 38 along far lateral side 66 to top flat 38 the line segment of approaching part measure.
Except that stopping band, lower limb hoop of the present invention preferably also comprises sealing band 56.Sealing band 56 is preferably adjacent with diaper 20 peripheries along each vertical limit 30, thereby sealing band 56 tends to hold and maintain diaper 20 facing to thigh.Although sealing band 56 can be included in known any several parts in the diaper field, but particularly preferred sealing hoop band structure comprises flexible flank 58 and elasticity wing member 60, it is described in detail in the United States Patent (USP) 3 860 003 of authorizing Buell on January 14th, 1975, and this patent is incorporated herein by reference.Produce the appropriate method of disposable diaper and unit describe in addition in United States Patent (USP) 4 081 301 with elastic packing band 56, it is entitled as " will disperse continuously, elongate elastic band be fixed to the method and apparatus of the predetermined separate section of disposable absorbent article ", on March 28th, 1978 was authorized Buell, was incorporated herein by reference.
Flank 58 should be a high flexibility, and collapsible, makes elasticity wing member 60 hold flank 58 and provides sealing band 56 with shank and waist at wearer.Flank 58 is the part of diaper 20 between the side of periphery and absorbent cores 44 preferably.Therefore, in preferred version of the present invention shown in Figure 1, flank 58 forms along the side 46 of diaper 20 absorbent cores 44 of the crotch area 26 at least extension by egative film 42 and top flat 38.In addition, as described in US 3 860 003, flank can be that the movable part that is connected with base (top flat, egative film and/or absorbent cores) or parts of flank are movable part.
Elasticity wing member 60 preferably operationally links to each other (fixing on it) with flank 58 under the collapsible condition of elasticity, thereby under the configuration of not shrinking usually, flank 58 can be shunk or gather to elasticity wing member 60 effectively.But under the elastic shrinkage condition, elasticity wing member 60 is fixed to flank 58 at least in two ways.For example, elasticity wing member 60 can be stretched and is fixed to then on the flank 58, and flank 58 is in not contraction state simultaneously.In addition, for example flank 58 is shunk, and be under the non-lax or non-flexible state, be fixed on the flank 58 of contraction in elasticity wing member 60 by pleating.But the sealing band also can comprise the structure of many different elastic extensiones, as elastic non-woven fabric or foam, and the stretching laminate of describing as US patent 5,151,092 (JIUYUE was authorized people such as Buell on the 29th in 1992); And structural elastic-like film (SELF) fabric of describing among the US 5518801 (authorizing people such as Chappell on May 21st, 1996), these documents are incorporated herein by reference.
In embodiment as shown in Figure 1, elasticity wing member 60 is stretched over flank 58 whole length basically in the crotch area 26 of diaper 20.In addition, elastic component 60 is extensible to diaper 20 whole length or is stretched over suitable length so that the sealing band to be provided.The length of elasticity wing member 60 is by the diaper design decision.
Diaper 20 shown in Figure 3 interconnects it thereby with flexible fastening piece 90 elasticity wing member 60 is fixed on the flank 58.Flexible fastening piece 90 should be flexible, thereby and has enough bond propertiess and make the elasticity wing member remain in contraction state.Pearl shape or spiral type glue that flexible fastening piece 90 is preferably made by hotmelt (as by ATO Findley company, Wauwatosa, Wis sells with Findley 2511 or Findley H9254).Generally acknowledged traditional binding agent and all skin care compositionss and incompatible.Particularly, some skin care compositions can reduce the globality of binding agent, and the result causes elasticity creep and/or adhesion deficiency.Discovery is avoided the binding agent of elasticity creep especially effectively when using skin care compositions be FindleyH9254.Elasticity wing member 60 is located and is fixed to the more detailed description of the mode on the diaper 20 and see United States Patent (USP) 4 253 461 (authorizing Strickland and Visscher on March 3rd, 1981) and United States Patent (USP) 4 081 301 (authorizing Buell on March 28th, 1978).These two pieces of documents are incorporated herein by reference.
Find that a kind of suitable elasticity wing member 60 is by from Stewart, the elastic webbing that the natural rubber that the Easthampton RubberThread Company of Va. obtains with trade mark L-1900 rubber composition is buied.Other suitable elasticity wing member 60 can be made by natural rubber, as by Scotland, and the elastic cord that the Fulflex company of N.C. sells with trade mark Fulflex 9211.A kind of representational elastic component is a Lycra band, and as by Waynesboro, the E.I.Du Pont Company of Virginia is with trade mark Lycra-XAT-151 product sold.Elasticity wing member 60 can comprise the known any thermal contraction elastomeric material of prior art.Other suitable elasticity wing member 60 can comprise the known various materials of prior art, comprising: elastomer film, Lycra film or band, polyurethane film, elastomer foam and the elasticity gauze that is shaped.
In addition, elasticity wing member 60 can be different shape.For example, the width of elasticity wing member 60 can change from about 0.25mm (0.01 inch) to 25mm (1.0 inches) or bigger.Elasticity wing member 60 can comprise a sub-thread elastomeric material or several strands of parallel or nonparallel elastomeric materials.Perhaps, elasticity wing member 60 is linear or shaped form.In addition, elasticity wing member 60 can variety of way well known in the prior art be connected on the diaper 20.For example, elasticity wing member 60 can adopt various bonding patterns ultrasonic bonds, heat/wiper seal to diaper 20, or is glued to simply on the diaper 20.
Band also can comprise elastic waist feature, as using the thread belt (not shown) of elasticity, this elastic waist feature can comprise US 4 515 595 for many different shapes, described in US 5 026 364 and the US 5 151 092 those wherein are distributed with skin care compositions thereon.These patents are respectively on May 7th, 1985, on June 25th, 1991, and JIUYUE was authorized people such as people, Robertson and Buell such as Kievit on the 29th in 1992, was incorporated herein by reference.
Band also can comprise elastomeric side panels, and this side plate can be made into many configurations, is distributed with skin care compositions thereon.Example with diaper of elastomeric side panels is disclosed in the following document: US 4 857 067, authorize people such as Wood on August 15th, 1989; US 4 381 781, authorize people such as Sciaraffa May 3 nineteen eighty-three; US 4 938 753, authorize people such as Van Gompel July 3 nineteen ninety; US5, JIUYUE was authorized people such as Buell on the 29th in 151,092,1992; US 5 580 411, and December was authorized people such as Nease on the 3rd in 1996; US 5 669 897, and JIUYUE was authorized people such as LaVon on the 23rd in 1997; With US 5 569 232, authorized people such as Roe on October 29th, 1996.Above-mentioned document is incorporated herein by reference.
The embodiment of band of the present invention also can comprise in order to the satchel of accepting and hold refuse, for refuse provide cavity spacer, obstacle that the restriction refuse moves in articles for use, accept and hold the chamber that is deposited on the refuse in the diaper and space etc., with and the combination, wherein on these parts, be distributed with skin care compositions.Satchel and spacer used in absorbent device are described in the following document: US 5,514,121, are entitled as " diaper with the liner of evicting from ", authorize people such as Roe on May 7th, 1996; US5 171 236, are entitled as " disposable absorbent article with core liner ", and December was authorized people such as Dreier on the 15th in 1992; US 5 397 318, are entitled as " having bag absorbent device of shape band ", authorize Dreier March 14 nineteen ninety-five; US 5 540 671, are entitled as " absorbent device with bag shape band of fold line ", authorize Dreier on July 30th, 1996; 93/25172,1993 year December of PCT application WO was published on the 3rd, was entitled as " liner and the disposable absorbent article with this class liner that are used for sanitary absorbent article "; With US 5 306 266, be entitled as " the flexible liner that is used for disposable absorbent article ", authorized Freeland on April 26th, 1994.The example of chamber or cavity is disclosed in the following document: US 4968312, be entitled as " the disposable diaper that separates feces ", authorize Khan November 6 nineteen ninety, US 4990147, be entitled as " having the absorbent device that is used for cushions that refuse is separated ", on February 5th, 1991 was authorized people such as Holt, and US 5 269 755, be entitled as " be used for three top flats of disposable absorbent article and have the disposable absorbent article of this three top flats ", December was authorized people such as Freeland on the 14th in 1993.The case description of suitable horizontal barrier is in following document: US 554142, are entitled as " absorbent device with multilamellar effective depth lateral partitions ", and with the application of people such as Dreier name, JIUYUE was authorized on the 10th in 1996; People's such as Freeland PCT patent WO 94/14395 is entitled as " absorbent device with upright lateral partitions ", and on July 7th, 1997 is open; With US 5653703, be entitled as " absorbent device " with the axial lateral partitions of horn shape, authorized people such as Roe on August 5th, 1997.All these documents are incorporated herein by reference.
Exemplary fastening system is disclosed in the following document: US 4 846815, authorize Scripps on July 11st, 1989; US 4894060, authorize Nestegard January 16 nineteen ninety; US 4946527, authorize Battrell August 7 nineteen ninety; US on November 19th, 3848594,1974 authorized Buell; US 4963140, authorize people such as Robertson October 16 nineteen ninety; US B1 on May 5th, 4662875,1987 authorized people such as Hirotsu; Authorized people such as Buell on the 29th with 5151092,1992 years JIUYUE of US.All these documents are incorporated herein by reference.Skin care compositions can be distributed on one or more parts of fixed system with the further skin health performance of improving.For example, skin care compositions as herein described can be distributed in banded fin (tape tab) upward to relax the effect of its friction skin.
Before being to use, Fig. 4 is in the perspective view of the diaper 20 of elastic shrinkage state.Shown top flat 38 is as the part of diaper 20 surfaces; Egative film 42 is placed away from the health of user.Shown sealing band 56 is assembled or contraction through elasticity wing member (not shown among Fig. 4).Diaper 20 has and extends near the sealing band 56 and inboard two stop band 62.At crotch part, far lateral side 66 is assembled and contraction through the elastomer isolators (not shown).In addition, stop that the end 74 of band 62 is closely fixing to provide comfortable to wearer, avoid stopping the band counter-rotating, and be easy to use this diaper.Skin care compositions 72 is distributed in the surface (be applied to the surface or be transferred to the surface) that respectively stops band 62, thereby transfers on the skin of wearer, thereby benefit as discussed below is provided.
Back waist region 24 is fixed to the rear portion of wearer, then the remainder of diaper 20 is moved between the thigh, the front portion that makes front waist region 22 be positioned at user just can be through diaper 20 on one's body the user.The end of banded fin fixture 54 preferably is fixed to bridge piece (landing member) thereby 55 diapers 20 that close.By this way, just can will stop that band 62 is arranged to the crotch area of wearer, and above-described distribution and function are provided.In case put on, stop that the far lateral side 66 of band 62 is just passed groin, upwards separately along the wearer buttocks.Neither one stops that band 62 encases the thigh of user.But sealing band 56 will encase thigh, thereby thigh is produced the pad effect.Stop the contact skin of band 62 and wearer, then skin care compositions 72 is transferred on the skin so that some or all benefit as herein described to be provided.
The treated band of the present invention also can be used for training pants or close-fitting diaper.Described term " training pants " refers to have fixed sides, limits the disposable underclothes of fixed waist opening and leg opening thus.Thigh is filled in the following body that leg opening slides into training pants wearer then just can put on training pants.The suitable training trousers are disclosed in US 5246433 (JIUYUE was authorized people such as Hasse on the 21st in 1993); Open among US4940464 (authorizing people such as Van Gompel July 10 nineteen ninety) and the US 5092861 (authorizing people such as Nomura on March 3rd, 1992), all these documents are incorporated herein by reference.Treated band of the present invention also is suitable for the combination of training pants and diaper (close-fitting diaper) or this class absorbent device of amalgamation, described in US 5569234 those, this patent is entitled as " disposable panty girdle ", and on October 29th, 1996 was authorized Buell and Carlin, was incorporated herein by reference.
The another kind of disposable absorbent article that can use the treated band of the present invention is an incontinence article.The insert of term " incontinence article " thumb pad, underwear (by fixed pad such as some suspension such as cingulum), absorbent item, the capacity of absorbent item improve thing, panties, mattress etc., no matter and be that adult or other incontinent person dress.The incontinence article that is fit to is disclosed in US 4253461 (authorizing people such as Strckland on March 3rd, 1981); US 4597760 and 4597761 (authorizing Buell); Above-mentioned US 4704115; US 4909802 (authorizing people such as Ahr); US 4964860 (authorizing people such as Gipson October 23 nineteen ninety); And PCT publication WO 92/11830 (P﹠amp; G, on July 23rd, 1992 published).Above-mentioned document is incorporated herein by reference.
Fig. 7 is the simplification partial sectional view of the another kind of preferred diaper configuration of the present invention.Diaper 720 comprises base and coupled treated band.Base comprises (i) outer cover, and this layer comprises top flat 38 parts and egative film 42 parts; (ii) absorbent cores 44.Each band comprises and stops band 762 and seal band 756.Stop that band 762 comprises that the activity with alar part 702 and recessed road part 704 stops band spare 763.
As binding agent, will stop that band spare 763 parts are fixed on the egative film 42 on the vertical limit 30 near diaper with wing fixture 88, thereby form alar part 702.Form the sealing of antiseep by wing fixture 88, alar part 68 and egative film 42, thereby prevent that liquid from along top flat 38 wickings seepage taking place.Alar part 702 and egative film 42 limit the flank 758 of sealing band 756, and encase elasticity wing member 760.By flexible fastening piece 90 elasticity wing member 760 is fixed on the flank 758 that alar part and egative film form.Form sealing band 756 by flank 758 and elasticity wing member 760.
The recessed road part 704 that stops band 762 is adjacent with alar part 702, and has proximal edges 64 and far lateral side 66.Proximal edges 64 is preferably sealing band 756 inboard formation, be preferably placed between the side 46 and elasticity wing member 760 of absorbent cores, to stop that band spare 763 is fixed on the egative film 42 as machinery/pressure binding by nearside fixture 92, thereby form the antiseep sealing along proximal edges 64, by top flat 38 wickings, so just prevented that liquid from stopping on the limit that wicks into diaper 20 below the band with liquid barrier.Far lateral side 66 preferably is in proximal edges 64 inboards, is not fixed on any internal part of diaper 20.As shown in Figure 7, preferably will stop the end doubling backward of band 763, and be fixed to by distally fixture 96 then and form a recessed road on the another part that stops band spare, form far lateral side 66.Separator wraps in the recessed road as elastomer isolators 76.By flexible fastening piece 94 elastomer isolators 76 is fixed on and stops on the band 762.Another kind of scheme is, only the end of elastomer isolators is fixed to stop on the band spare, and producing " tension string formula " elasticity (drawstring elastic), thereby the mid portion of this elastic component " floats " in recessed road.This " tension string formula " elasticity is described in detail among the US 4816025, and this patent was authorized Richardson on March 28th, 1989, and this article is incorporated herein by reference.Far lateral side 66 separates with the surface 40 of top flat 38 owing to the aggregation of elastomer isolators 77.
Shown in scheme in, the surface of the position of top flat 38 and absorbent cores 44 is adjacent, and stretches out the side 46 of absorbent cores 44, but terminates in proximal edges 64 inboards.In addition, top flat can protruding proximal edges, but wing fixture 88 inboards that terminate in ragged edge are to obtain structural benefit.The more detailed description of this scheme cuff structures is seen and was authorized Dragoo on January 3rd, 1989, is entitled as the US 4 795 454 of " absorbent device with the two bands of antiseep ", and this patent is incorporated herein by reference.
Alar part 702 is adjacent with recessed road part 704, and extends outwardly into vertical limit 30 by the proximal edges 64 of recessed road part 704, thereby extends to form flank 758 by egative film 42 and alar part 702.Although alar part 702 preferably stops the continuous part of band spare 763, alar part 702 can be formed by the different sheet materials that are fixed to the recessed road part 704 that stops band 762.Therefore, compare with recessed road part 704, alar part 702 has different physical properties, size and characteristic.For example, it is hydrophobic that alar part spare 702 need not, and also need not to extend outwardly into vertical limit 30.In addition, stop that respectively band 762 need not alar part, thereby can omit alar part fully.But preferred alar part be hydrophobic, submissive, have soft hand feeling and skin do not produced stimulation because when using, it contacts with the thigh of wearer.
The skin care compositions of effective dose is distributed in and can be wearer on the band skin protection benefit is provided.In order in use effectively skin care compositions to be transported on the skin of wearer, preferably it is distributed on the band part of contact wearer skin.Therefore, skin care compositions can be distributed in the band two sides, its one side, or the subregion of one or both sides.In the scheme as shown in Figure 7, skin care compositions can be distributed on alar part 702, recessed road part 704 or both.If be distributed on alar part and the recessed road part, the skin care compositions that is distributed need not to have identical prescription.In fact, every kind of skin care compositions can have different prescriptions and performance so that different benefits to be provided.For example, first skin care compositions that reduces diaper rash can be distributed in recessed road part, and second skin care compositions of minimizing scytitis and/or mitigation skin can be distributed in alar part.In the embodiment depicted in fig. 7, first skin care compositions 72 is distributed in recessed road part, preferably at the health face of recessed road part, and second skin care compositions 72 ' be distributed in alar part, preferably on its health face; And the 3rd skin care compositions 72 " can be distributed in top flat, preferably on its health face.The prescription of various skin care compositionss need not identical.But in this special scheme, the prescription of various skin care compositionss is identical.Thereby it is transferred on the skin of wearer with effective dose each skin care compositions that distributes.
As shown in Figure 7, skin care compositions is preferably distributed in the discontinuous part of alar part and recessed road part.More preferably, skin care compositions is with the form coating of one or more band, preferably these bands and those and elasticity wing member or elastomer isolators fold mutually regional parallel.First skin care compositions 72 preferably is coated on the recessed road part 704 with the form of broadband (about 1.4 inches), and this band extends to proximal edges 64 from far lateral side 66.The length of this band is partly extended (about 11.75 inches long) thereby made with adjacent the stopping in end in the elastomer isolators of front waist region along the length of elastomer isolators 76 does not have skin care compositions 72 to distribute thereon on band spare 763 parts.(seeing, for example Fig. 1).With many second skin care compositionss 72 ' be distributed on the alar part 702.
Skin care compositions is coated on health face 57 or the medicated clothing face 59 that stops band spare 763.If be coated on the medicated clothing face, preferred skin care compositions stops band as hydrophobic layer to help stoping urine and BM to flow to.In addition, make it can migrate to the health face that stops band spare skin care compositions coating or carry, thereby can be transferred on the skin of wearer and the benefit of skin protection as discussed in this article is provided through it.
Also skin care compositions can be distributed in top flat with provide different benefit or be coated on benefit identical when stopping on the band.The case description that is used for the skin care compositions of top flat is authorized the US 5 643 588 of Roe etc. on July 1st, 1997, and this patent is incorporated herein by reference.
Fig. 8 is the treated band of the present invention, the another embodiment of the elastic leg band that particularly a kind of breathability is treated.As shown in Figure 8, diaper 820 comprises base, and this base comprises outer cover and the absorbent cores 44 that wraps in the outer cover, and outer cover comprises top flat 38 and egative film 42, and preferred absorbent cores 44 wraps between top flat 38 and the egative film 42.Lower limb hoop 856 comprises flank 858 and elastic component 860.Lower limb hoop 856 forms as the active unit that is connected on the base.In this specific scheme, flank 858 comprises two band spares: be connected on the top flat 38 and by the horizontal outward extending first band spare 802 and link to each other with egative film 42 and by the horizontal outward extending second band spare 804 of egative film of top flat.First and second bands 802 and 804 encase elastic component 860, and elastic component 860 operationally links to each other with one or two band spare to form the sealing band.Shown in special embodiment in, each band spare forms by (gas-pervious but liquid-tight) material by allowing water vapour pass through (gas-pervious) and barrier liquid.In this scheme, each band spare comprises non-woven fabrics.But, also can use other gas-pervious material, comprise porous formed film.The more detailed description of this bottom bands of trouser legs is disclosed in the US 46 36207 that authorized Buell on January 13rd, 1987.This patent is incorporated herein by reference.
Skin care compositions can be distributed on first, second band spare or both.In preferred embodiment as shown in Figure 8, skin care compositions 872 is distributed in the first band spare 802, and preferably on its surface 802, when lower limb hoop 856 contacted with wearer, skin care compositions 872 was easy to transfer on the skin of wearer like this.Preferably with one or more belt-like form coating skin care compositions, these ribbons are preferably consistent with those and elastic component overlapping areas.In addition, skin care compositions can be coated on the underwear face 808 of the first or second band spare 802 or 804, moves then or passes on the surface 806 that these materials reach the first band spare 802, with the seepage that the skin protection benefit is provided and reduces the lower limb hoop.In addition, skin care compositions also can be coated on the elastic component, passes the surface that elastic component reaches the first band spare then.In further scheme, egative film is extended on the diaper limit always, replace the second band spare.
The breathability of band (ventilative steam) has strengthened the function of the used many skin care compositionss of the present invention, because the exchange of water vapour has reduced relative humidity in the diaper in the diaper.In absorbent device, the relative humidity between wearer skin and articles for use excessively can disturb water vapour normally to pass in and out skin and carry or appear through skin.Provide a kind of parts (ventilative band) that transmit excess water will reduce power to excessive moisture.This just allows near the moisture the skin discharge from diaper, and provides this improvement to compare separately by skin care compositions of the present invention, further strengthens the skin health of wearer.(owing to be distributed with skin care compositions on the top flat, disposable absorbent article prevents that the protection of the excessive hydration of skin from being improved, as improving the aeration of skin by improving breathability.The excellent liquid handling property is disclosed in people's such as Elder U.S. Patent Application Serial Number 08/926566 (P﹠amp; G case 6832Q), be entitled as " disposable absorbent article that the skin condition benefit is provided ", JIUYUE was submitted on the 10th in 1997, and this patent is incorporated herein by reference.
Fig. 9 is the plane graph of another embodiment of the present invention, and it has the active side plate laminate that links to each other with base (holding assembly): front side board 902 and back side panel 904.Extensile back side panel 904 the multidirectional stretching that provided by the first routine plate 906 and second side plate 908 is provided with shank thereby different extensibilities is arranged along the waist of diaper 920.Side plate and diaper are described in greater detail in the following document: December in 1996 authorized being entitled as of people such as Nease " producing the no waste material method of absorbent device " on the 3rd with side plate and with people's such as Robles name in the U.S. Patent Application Serial Number 08/115048 that is entitled as " absorbent device " of submission on November 19th, 1994 with multidirectional stretching, extension side plate, be hereby incorporated by.Diaper 920 has various treated bands and combination thereof.The lower limb hoop of diaper 920 comprises the sealing band 956 of base (holding assembly) and the lower limb side 910 of second side plate 908 and front side board 902.The waist band comprises the elastic waist belt 912 of base (holding assembly) and the waist side 914 of first side plate 906 and front side board 902.In this scheme, skin care compositions can be coated on side plate or its any part, be coated in the combination of sealing band, elastic waist belt or above-mentioned each parts.For example skin care compositions is coated on the elastic waist belt and a part of waist side of each first side plate and front side board on.Skin care compositions can be distributed on each lower limb band on the lower limb limit of the lower limb limit of (comprising one section sealing band), second side plate and front side board.Thus, skin care compositions provides treatment or protective layer for the thigh of wearer.In addition, in all these bands or its any combination, can be distributed with the skin care compositions of different formulations.As described herein, another kind of skin care compositions also can distribute on top flat 38.As shown in figure 10, first kind of skin care compositions 972 is distributed on first side plate 906 in the mode of many of helical forms; Second kind of skin care compositions 972 ' be distributed on second side plate 908 in the mode of many of helical forms, and the third skin care compositions 972 " mode with many of helical forms is distributed on the front side board 902.These skin care compositionss can have identical or different prescription.If have different prescriptions, every kind of specific skin care compositions should be mixed with the skin protection benefit that uniqueness is provided in the zones of different of wearer.
Figure 10 is the part sectioned view of another kind of preferred diaper configuration, and treated band is positioned at the lumbar region of diaper.Particularly, the figure shows a kind of all-in-one-piece waist button (waistcap)/belt.The representative embodiment of this all-in-one-piece waist button/belt is disclosed in the US5026364 that authorized Robertson in June 25 in 1991, and this patent is incorporated herein by reference.It should be noted that the present invention is not only limited to all-in-one-piece waist button/belt, but comprise as authorizing Kevit on May 7th, 1985; Waist shown in belt shown in the US 4515595 of Osterhage and US 4738677 (authorizing Foreman on April 19th, 1988) and the US 4743246 (authorizing Lawson on May 10th, 1988) is buckled, and these patents all are incorporated herein by reference.Monoblock type waist button/belt 1002 forms by operating the monolithic elastomeric material that links to each other with diaper 1020.Part 1004 by belt fixture (not shown) such as ultrasonic bonds agent, is linking to each other in operation with the waist wing 1058 near the diaper 1020 end limits 32 under the elasticity contractile state outwardly.Inwardly part 1006 and outside part 1004 are adjacent and have proximal edges 1064 and a far lateral side 1066.Inwardly the proximal edges 1064 of part 1006 is the end limit of diaper 1,020 32 inboard formation, be preferably placed at the waist limit 47 of absorbent cores 44 and outwards between the part 1004, its formation method be by nearside fixture (not shown) such as binding agent with one section inside part 1006 with the waist wing 1058 (top flat 38) thus link to each other and form one along proximal edges 1064 and seal.Far lateral side 1066 is positioned at proximal edges 1064 inboards, and as shown in the figure, it is not fixed to the lower part of diaper 1020, and particularly on the top flat 38, thereby inwardly the surface 40 of part 1006 and top flat 38 separates and forms a waist button 1062 (stopping band).Shown in scheme in, single piece of material both as elastic waist belt 1056 also as waist button 1062 (stopping band).This single piece of material is referred to as integral type waist button/belt 1002.This belt can make diaper and wearer more next to the shin, and stops the seepage of waist, and simultaneously, the waist button with the bodily exudate restriction, hold and remain in the diaper.Yet should be noted that movable part both can form the waist button and also can form belt.
Shown in scheme in, skin care compositions is distributed in inside part, outwards on part or both, therefore, is coated on waist button or the belt.Thereby the surface that preferred skin care compositions is coated on integral type waist button/belt is in use with the contact skin of wearer and shift on skin.As shown in figure 10, skin care compositions 1072 preferred modes with one or more are distributed on the surface 1070 of integral type waist button/belt 1002, and preferably the far lateral side 1066 of close waist button 1062 distributes and is distributed on the belt 1056.For the hydrophobicity that increases the waist button and a kind of skin care compositions that can be transferred on the skin is provided, also skin care compositions can be applied to the medicated clothing face migrates to the surface then or passes the surface, thereby provide hydrophobic layer, when helping to hinder fluid and passing through, can make skin care compositions be easy to be delivered on the skin of wearer like this.In addition at the skin care compositions that inwardly partly can be coated with different formulations with outside part.
Another kind of disposable absorbent article of the present invention is a women sanitary articles, as sanitary towel.The women sanitary articles that is fit to is disclosed in the US 4556146 that December in 1985 was authorized people such as Swanson on the 3rd; Authorized the US B1 4589876 of Van Tilburg on April 27th, 1993; Authorized the US 4 687 478 of VanTilburg on August 18th, 1997; Authorize Osborn, the US 4 950264 of III August 21 nineteen ninety; Authorized Osborn, the US 5 009 653 of III on April 23rd, 1991; Decembers in 1993 were authorized the US 5 267 992 of Van Tilburg on the 7th; Authorize people's such as Lavash US 5 389094 February 14 nineteen ninety-five; Authorize people's such as Road US 5413568 May 9 nineteen ninety-five; Authorize people's such as Emenaker US 5 460 623 October 24 nineteen ninety-five; Authorized the US 5 489 283 of Van Tilburg on February 6th, 1996; Authorized people's such as Emenaker US 5 569 231 on October 29th, 1996; And on April 15th, 1997 authorize the US 5 620 430 of Bamber, all these documents are incorporated herein by reference.
Figure 11 shows the crown figure in sanitary towel 1120 cross sections with treated band of the present invention, and this sanitary towel is positioned on the wearer medicated underpants 1102 on one's body when using.More detailed description with the sanitary towel that stops band can be authorized Roberts on July 22nd, 1997; Find among the US 5 649 917 of Mancel, this patent is incorporated herein by reference.As shown in figure 11, sanitary towel 1120 comprises the center absorption pad, and this absorption pad comprises top flat 38, egative film 42 and the absorbent cores between top flat 38 and egative film 42; The wing 1104 (industrial being referred to as " flank " or " sheet ") that extends along each vertical limit 1130 of center absorption pad, each wing 1104 has at least one flexible axle, preferably have first flexible axle 1106 and second flexible axle 1108, thereby the elasticity in the medicated underpants 1102 cosily pulls to the wing 1104 near second flexible axle 1108 facing to health in use, and the result obtains a double-walled barrier that holds menstruation; Comprise the treated band that stops band 1162 (barrier), the described band that stops has proximal edges 1164 and far lateral side 1166, and proximal edges 1164 links to each other (in this scheme, preferably linking to each other with the wing 1104) to hold body exudates with sanitary towel.
Skin care compositions 1172 is distributed in and respectively stops on the band 1162 so that described skin protection benefit to be provided.Although skin care compositions can be coated on whole band, its a certain surface or its any part, but shown in scheme in, skin care compositions is applied to one or more belt-like form on the part that stops band 1162 surfaces, preferably near far lateral side 1166.In addition, shown in the scheme, can be with second skin care compositions 1172 ' be distributed on each wing 1104.The 3rd skin care compositions 1172 ' ' be distributed on the top flat 38.Be distributed on the wing that second skin care compositions, the 1172 ' preferred distribution on the wing 1104 contacts with wearer in use that part of, be generally on the wing adjacent that part of with second flexible axle 1108.Second skin care compositions 1172 ' can be distributed between first flexible axle 1106 and second flexible axle 1108 and/or be distributed between the far lateral side 1110 of second flexible axle 1108 and the wing.Being applied to the prescription that stops the skin care compositions on band, top flat and the wing can be inequality, and the different piece in wearer skin can provide different skin protection benefits like this.Shown in scheme in, the skin care compositions on being distributed in top flat, the wing and stopping band has identical prescription.
The B skin care compositions
Although the concrete skin care compositions (this paper is called skin care compositions and methods or compositions) according to conveying of the present invention is a key factor for reaching ideal skin effects, preferred skin care compositions provides the non-occlusion function (as barrier layer liquid-tight relatively but saturating steam) of protection to avoid the excessive hydration of skin or to be exposed in the contained material of bodily exudate.This compositions should also provide and makes the minimum function of friction to reduce the skin irritation of band and wearer skin contact area; Or contain the reagent of direct or indirect transmission skin protection benefit.For example, indirect benefit comprises improving and removes skin stimuli such as feces or urine.Said composition can various forms, includes, but not limited to emulsion, washing liquid (lotion), frost, ointment, ointment, powder, suspension, capsule, gel etc.
Term used herein " skin care compositions of effective dose " refers to a certain amount of particular composition, when it is coated onto or moves on the surface of (being distributed in) band, friction between the skin that can reduce band effectively and be contacted, when its when band transmits, the barrier layer of protectiveness can be provided and/or realize the skin protection benefit; And/or reduce the cohesive of BM and skin.Except as otherwise noted, in these preferred schemes, the description of the skin care compositions that distributes on the relevant band is applicable to the compositions that is distributed on the top flat.Certainly, the compositions that is distributed in the effective dose on the band depends on used specific skin care compositions to a great extent.But the amount that is distributed in the skin care compositions at least a portion of band surface is preferably from about 0.05mg/ square inch (0.0078mg/ square centimeter) to 80mg/ square inch (12mg/cm 2), 1mg/ inch more preferably 2(0.16mg/cm 2)-Yue 40mg/ inch 2(6mg/cm 2), more preferably about 4mg/ inch 2(0.6mg/cm 2)-Yue 26mg/ square inch (4mg/cm 2), these scopes are illustrative, and those of ordinary skill in the art will recognize that the character of compositions will determine to distribute amount on it to reach desirable skin benefits, from the angle of disclosure thing, can determine these consumptions by normal experiment.
Although the amount of the skin care compositions that distributes is a key factor, more the most important thing is when using the band of one or more processing, to be delivered to the amount of the compositions on the wearer skin on band.Though be transferred to the aequum that desirable skin benefits is provided on the skin depends on composition therefor on some degree character, the applicant finds to transmit lower amount but still desirable skin benefits can be provided.For preferred compositions, all the more so as those compositionss described in the embodiment.
Thereby another benefit of the present invention is using of control skin care compositions to be transmitted lower but the desired composition of effective dose.This is with usually to use the situation of compositions with hands brokenly opposite, and under described common situation, care-giver/user is normal to use the amount more much bigger than required amount.Manual added excess material is handled fluidic character to absorbent device adverse influence, this be because these materials from cutaneous metastatic on the articles for use.In fact, for some material, as vaseline, in fact manual added amount causes blocking effect, and the result has damaged skin.Benefit of the present invention is to provide a protective barrier to surface moisture, can avoid skin to block (promptly keeping skin permeability) again simultaneously.Therefore, the present invention can be delivered to the compositions of amounts of optimization on the skin, thereby remain to/or improve skin health.
(generally to dress the time) transferred to regard to the amount of the skin care compositions on the wearer on daytime with regard to dressing a treated absorbent device about 3 hours, for as embodiment 1 described preferred skin care compositions, preferably at least about the 0.01mg/ inch 2(0.0016mg/cm 2), more preferably at least about the 0.05mg/ inch 2(0.0078mg/cm 2), more preferably at least about the 0.1mg/ inch 2(0.016mg/cm 2) during dressing in 3 hours, transfer on the skin.Generally, the amount of the compositions transmitted in the phase at 3 hours wearings of treated articles for use is about 0.01mg/ square inch (0.0016mg/cm 2) to about 8mg/ square inch (1.24mg/cm 2), preferably about 0.05mg/ square inch (0.0078mg/cm 2) to about 6mg/ square inch (0.93mg/cm 2), 0.1mg/ square inch (0.016mg/cm more preferably from about 2) to about 5mg/ in2 (0.78mg/cm 2).
People will recognize that, in the used various materials, those think that skin protectant is the used inevitable material of the present invention safely and effectively in the skin care compositions that is delivered to according to the present invention on the skin.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.E.R. § 347) of Over-the-Counter human skin care medicine; it mainly comprises: alantoin, gel aluminum hydroxide, smithsonite, 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 material defined in the provisional final regulation (21 C.F.R. § 347) of Over-the-Counter human skin care medicine, and it mainly comprises: active yeast cell derivative, aldioxa, aluminum acetate, microporous fibre element, vitamin D 3, colloidal oatmeal powder, cysteine hydrochloride, pantothenylol, Peru balsam oil, albumen hydras, racemic methionine, sodium bicarbonate, vitamin A etc.People will recognize that one or more these optional material can be used in combination with other material described herein.
As mentioned below, though the useful skin care compositions of the present invention needn't preferably have fusing point and distribute, but make at room temperature the said composition relative fixed be confined to the surface (surface) that band contacts with wearer, at least a portion compositions is transferred to wearer under body temperature, and, under extreme storage requirement, still not exclusively be liquid.Preferred said composition is easily transferred on the skin by normal contact, wearer motion and/or body heat.Because the preferred basic fixed of said composition is on band wearer contact surface, so the skin care compositions that only needs to hang down consumption is relatively given desirable skin protection benefit.In addition, when packing articles for use of the present invention, need not special protection (obstruct) or packaging material.
In preferred scheme, skin care compositions of the present invention is that room temperature is solid, is more typically semisolid at 20 ℃." semisolid " refers to that said composition has the rheological characteristic of pseudoplastic behavior or plastic liquid.If do not apply shearing, the outward appearance of said composition is semi-solid, but improves with shear rate, and compositions becomes mobile.Although this is that it also comprises some small amount of liquid components because said composition mainly comprises solid constituent.
Preferably, the zero-shear viscosity of the present composition is about 1.0 * 10 6Centipoise is to about 1.0 * 10 8Centipoise, more preferably 5.0 * 10 6To 5.0 * 10 7Centipoise.Term used herein " zero-shear viscosity " refers to the viscosity that (for example 1.0/ second) is measured with dish and cone viscosimeter under very low shear rate; A kind of suitable instrument is by New Castle, and the TA instrument company of DE buys with CSL 100 models.Those of ordinary skill in the art will recognize that other component that can use except that high melting point component (as described below) so that comparable mensuration viscosity to be provided because comprise these components this based composition can by with its viscosity to the curve extrapolation of shear rate to measuring in about 20 ℃ zero shear rate.
Preferred compositions at least at room temperature is that semisolid is so that the compositions migration is minimum.In addition, the final fusing point of preferred composition (100% liquid) be higher than may " harshness " storage requirement (greater than 45 ℃) (for example, the car body of the warehouse of Arizona, Florida etc.).Particularly, preferred compositions has following fusing point distribution:
Characteristic preferable range most preferred range
% liquid 2-50 3-25 is at room temperature (20 ℃)
% liquid 25-95 30-90 is at body temperature (37 ℃)
Final fusing point (℃) 〉=38 〉=45
Owing at room temperature be solid or semisolid, thus preferred compositions flow to and transfer to the trend in undesirable absorbent device zone can be very not big.This means only needs less skin care compositions just can reach ideal treatment, protection and/or conditioning benefit.
In order to increase the stationarity of preferred compositions, the viscosity of composition prepared should be high as much as possible, thereby prevent to flow to undesirable zone in the diaper by band.Unfortunately, in some cases, the viscosity height may be transferred on the skin of wearer by composite inhibiting, and is difficult to use and brings processing problems.Therefore, viscosity should reach a balance; The enough height of viscosity so that compositions be fixed on the surface of band, again can be too not high and hinder and transfer on the skin of wearer.The viscosity that compositions is suitable is generally about 1-5000 centipoise, preferred about 5-300 centipoise, more preferably from about the 5-100 centipoise adopts rotary viscosity measuring (a kind of suitable viscometer can be by Melrose Park, and the Lab Line instrument company of IL buys with 4537 models) at 60 ℃.This viscometer uses 2 axles to operate under 60rpm.
Be used to provide the compositions of skin protection benefit for design, a kind of useful active component of these compositionss is one or more Derma-Guards or lubricant.At this employed lubricant is the material that prevents humidity or inflammation, softness, comfort, submissive, apply, lubricate, preserve moisture protection and/or cleaning skin.Will be appreciated that the defined just lubricant of above-mentioned several active substances herein.In preferred embodiments, these lubricants have plasticity or fluid consistency under room temperature is 20 ℃.
Being used for representational lubricant of the present invention comprises, but be not limited to, oil-based lubricant, fatty acid cane sugar ester class, Polyethylene Glycol and derivant thereof, wetting agent, fatty acid ester, alkyl ethoxylate, fatty acid ester ethoxylate, aliphatic alcohols, polysiloxane-based, propylene glycol and derivant thereof, glycerol and derivant thereof (comprise glyceride, the glyceride of aceto-glyceride and C12-C28 fatty acid ethoxyization), 2,2'-ethylenedioxybis(ethanol). and derivant thereof, spermaceti or other wax, fatty acid, (particularly fatty chain length is the material of 12-28 carbon atom to fatty alcohol ether, as stearic acid), propenoxylated aliphatic alcohol, the fatty ester of other polyhydroxy-alcohol, lanoline and derivant thereof, Kaolin and derivant thereof, above-mentioned any independent skin protectant, or the mixture of these lubricants.
Suitable oil-based lubricant comprises those hydrocarbon with 16-32 carbon atom chain length, or the mixture of these hydrocarbon.The petroleum base hydrocarbon that has these chain lengths comprises mineral oil (also being referred to as " Albolene ") and vaseline (also being referred to as " ceresine ", " vaseline " and " mineral jelly ").Mineral oil is commonly referred to as more low viscous and has the mixture of the hydrocarbon of 16-20 carbon atom.Vaseline is commonly referred to as more heavy-gravity and has the mixture of the hydrocarbon of 16-32 carbon atom.Vaseline and mineral oil are the particularly preferred lubricants that is used for lotion composition of the present invention.
Suitable fatty acids esters lubricant comprises by C 12-C 18Fatty acid is preferably by C 16-C 22Satisfied 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, palm acid ethyl ester and composition thereof.The suitable fatty acids ester lubricant 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.
Suitable alkyl ethoxylate series lubricant agent comprises that average degree of ethoxylation is the C of about 2-about 30 12-C 22Alcohol ethoxylate.Preferred alcohol ethoxylate lubricant is selected from: average degree of ethoxylation is lauryl, cetyl and the stearyl ethoxylate of about 2-about 23, 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) and octadecyl polyoxyethylene ether-10 (average degree of ethoxylation is 10 stearyl alcohol ethoxylate).These alkyl ethoxylate lubricants are used in combination with oil-based lubricant such as vaseline usually, the alkyl ethoxylate lubricant to the weight ratio of oil-based lubricant from about 1: 1 to about 1: 5, preferably from about 1: 2 to about 1: 4.
Suitable aliphatic alcohols lubricant comprises C 12-C 22Aliphatic alcohol, be preferably C 16-C 18Aliphatic alcohol.Representational example comprises spermol and stearyl alcohol, and composition thereof.These aliphatic alcohol lubricants are used in combination with oil-based lubricant such as vaseline usually, the aliphatic alcohol lubricant to the weight ratio of oil-based lubricant from about 1: 1 to about 1: 5, preferably from about 1: 1 to about 1: 2.
The lubricant of the present invention that is applicable to of other kind comprises polysiloxane compound.Be generally used for those materials that of the present invention, suitable silicone materials comprises the monomer siloxane unit with following structure:
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 a straight chain, side chain or have circulus.Radicals R 1And R 2Can be independently of one another for other silanes functional group 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 a 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 a phenyl, xenyl, naphthyl etc.The alkaryl of illustrative is a tolyl, xylyl, ethylbenzene base etc.The aralkyl of illustrative is a benzyl, α-phenethyl, β-phenethyl, α-benzene butyl etc.The group of naphthene base of illustrative is a cyclobutyl, cyclopenta, cyclohexyl etc.The halogenated hydrocarbon group of illustrative is a chloromethyl, bromoethyl, tetrafluoro ethyl, fluoro ethyl, trifluoroethyl, fluoroform phenyl, hexafluoro xylyl etc.
As long as the viscosity that polysiloxanes can flow or can make it mobile, so useful polysiloxanes when being used for absorbent device can change as common polysiloxanes changes 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 the viscosity of polysiloxanes is from about 5,000 centistokes of about 5-in the time of 37 ℃, and more preferably from about 2,000 centistokes of about 5-, the best is from about 1000 centistokes of about 100-.By as with polysiloxanes emulsifying in surfactant, or, itself anti-mobile high viscosity polysiloxanes can be deposited on the absorbent device effectively by means of the method for solvent as hexane (just illustrative) provides polysiloxane solution.To be discussed in more detail the ad hoc approach that polysiloxane emollient is added to absorbent device below.
Be used for preferred polysiloxane compound of the present invention and be disclosed in US5,059,282 people such as () Ampulski, 1991.10.22 publishes, and is incorporated herein the document as a reference.The particularly preferred polysiloxane compound that can be used as the lubricant in the present composition comprises, the functional methyl polysilicone hydride compounds of phenyl (for example, polyphenyl methyl siloxane) and cetyl or the functionalized polydimethylsiloxane of stearyl Dow Corning 556 Cosmetic-Grade Fluid:, as be respectively the polysiloxane fluid of Dow2502 and Dow2503.Except have the phenyl official can or the such substituent group of alkyl group, effectively substituent group also have amino, carboxyl, hydroxyl, ether, polyethers, aldehyde, ketone, amide, ester and thiol group.In these effective substituent groups, comprise phenyl, amino, alkyl, this class group of carboxyl and hydroxyl is more more preferred than other group; Phenyl functional group most preferably.
Suitable wetting agent comprises glycerol, propylene glycol, sorbitol, trihydroxy stearin etc.
If exist, the amount that adds the lubricant in the compositions will depend on various factors, and they comprise related specific lubricant, desirable skin benefits, factors such as other component in compositions.Described compositions can comprise the lubricant of about 0-100% of gross weight, the preferred lubricant of about 10-95%, 20-80% more preferably from about, the lubricant of best about 40-75%.
In some skin care compositions of the present invention another is optional but special key component is to be fixed in the desirable position of treated band compositions (comprising preferred lubricant and/or other skin conditioning agent/protective agent) or the reagent on it.Because some preferred emollient in the compositions has plasticity or fluidic denseness at 20 ℃, this lubricant often will flow or move, even when being subjected to the shearing of appropriateness.When on the surface that is applied to band or other position, when especially being in fusing or molten condition, lubricant will can not be retained on the zone of processing substantially.On the contrary, this lubricant often will move and flow to the undesirable zone of absorbent device.
Particularly, owing to be used for the hydrophobic property of many lubricants He other skin conditioning agent of the present composition, therefore,, lubricant will produce undesirable effect to the absorbability of absorbent cores if migrating to articles for use inside.This also means, in order to obtain desirable benefit, must add much more lubricant on band.The consumption that increases lubricant not only will increase cost, but also will increase the weight of that absorbability to core produces undesirable effect and in the processing/transfer process of the band of handling the compositions generation do not wish the transferance that obtains.
Make lubricant mainly be positioned on the surface that applies compositions or band regional on, fixative has been offset lubricant migration or mobile this trend.It is believed that this part is because fixative makes the fusing point of compositions and/or viscosity be increased to cause on lubricant fusing point and the viscosity.Since fixative preferably miscible with lubricant (by suitable emulsifiers dissolve in lubricant or be scattered in wherein), therefore, it also is trapped in lubricant on band and the surface that wearer contacts or the zone that is coated with.
Another advantage of the present invention is, with fixative " locking " on band and surface that wearer contacts or the zone that is coated with.This can realize by the fixative of fixing fast (or curing) when using on being applied to band.In addition, can quicken the crystallization of fixative by aerator, fan and chill roll etc. to the band external refrigeration of handling.
Except can miscible with lubricant (or being dissolved in wherein), this fixative preferably has a kind of fusing point and distributes: make compositions at room temperature for solid-state or half because of attitude.Therefore, preferred fixative should have the fusing point at least about 35 ℃.Like this, this fixative itself will not have migration or mobile trend.The fusing point of preferred fixative is at least about 40 ℃.Usually, the melting range of fixative is from about 50 ℃ to about 150 ℃.
The preferred performance of skin care compositions if you are using, is used for that fixative of the present invention is optional takes pride in multiple material, as long as can provide skin benefits as herein described.Preferred fixative comprises: be selected from C 14-C 22Aliphatic alcohol, C 12-C 22Fatty acid and average degree of ethoxylation are the C of about 2-30 12-C 22Alcohol ethoxylate and composition thereof.Preferred fixative comprises: C 16-C 18Aliphatic alcohol most preferably is selected from: spermol, stearyl alcohol, the crystallization high-melting-point material of tadenan and composition thereof.The linear chain structure of these materials can be quickened the curing on handled band.Particularly preferably be the mixture of spermol and stearyl alcohol.Other preferred fixative comprises: C 16-C 18Fatty acid most preferably is selected from: Palmic acid, stearic acid and composition thereof.Palmic acid and stearic mixture are particularly preferred.Also have other preferred fixative to comprise: the C of average degree of ethoxylation from about 5 to about 20 16-C 18Alcohol ethoxylate.Pure and mild fatty acid of preferred fat and aliphatic alcohol are linear.Importantly, these preferred fixative such as C 16-C 18Aliphatic alcohol increases the crystalline rate of compositions, makes compositions crystallization promptly on the surface of base material.
The spendable fixative of other kind comprises mulit-hydroxy fatty acid ester, polyhydroxy fatty acid amide, and composition thereof.Preferred ester and amide will have three or more free hydroxyl group on the polyhydroxy part, and will have the nonionic characteristic usually.Because use the band that applies compositions may make skin sensitivity, therefore, it is quite soft and non-irritating that these esters and amide are also tackled skin.
Be used for of the present invention, suitable mulit-hydroxy fatty acid ester and will have following structural formula:
Figure A9718150200341
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 that are connected directly on this chain; N is at least l.Suitable Y group can be by polyhydric alcohol such as glycerol, tetramethylolmethane; Sugared 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.
Be used for the suitable mulit-hydroxy fatty acid ester of a class of the present invention and comprise some Isosorbide Dinitrate, preferred C 16-C 22The Isosorbide Dinitrate of satisfied fatty acid.Because this typical preparation method, thus these Isosorbide Dinitrates usually comprise singly-, 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), with the behenic acid Isosorbide Dinitrate, and the monoesters, diester and three esters that comprise one or more these sorbitol esters, 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, what account for Main Ingredients and Appearance is monoesters and diester.
Another kind ofly be used for of the present invention, suitable mulit-hydroxy fatty acid ester and comprise: some monoglyceride, preferably C 16-C 22The 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 in the described mixture and be used for monoglyceride of the present invention.
Another kind ofly be used for of the present invention, suitable mulit-hydroxy fatty acid ester and comprise some sucrose fatty acid ester, the C of preferably sucrose 12-C 22Polyunsaturated 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.
Be used for of the present invention, suitable polyhydroxy fatty acid amide and have following structural formula:
Figure A9718150200351
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 poly-hydroxy alkylene part, and its linear hydrocarbyl chain is at least with 3 hydroxyls that are connected directly on this chain.Referring to US5,174,927 (Honsa), 1992.12.29 publishes (being hereby incorporated by), 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; Glycidyl (glycityl) most preferably.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.These corn syrup can obtain being used for the mixture of Z saccharic composition partly.
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 3-5 integer in the formula, R 3Be H or ring-type or aliphatic monosaccharide.Most preferably wherein n is 4 glycidyl, 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 coconut oleoyl amine, stearmide, oleamide, lauramide, myristamide, decyl amide, palmitamide, Adeps Bovis seu Bubali amide etc. for example to be provided.The Z part can be a 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:
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 grape sugar amide, N-lauryl-N-methoxy-propyl grape sugar amide, N-coco group-N-methyl grape sugar amide, N-coco group-N-methoxy-propyl grape sugar amide, N-palmityl-N-methoxy-propyl grape sugar amide, N-Adeps Bovis seu Bubali base-N-methyl grape sugar amide or N-Adeps Bovis seu Bubali base-N-methoxy-propyl grape sugar amide.
Just as noted earlier, some fixative need be used for being dissolved in the emulsifying agent of lubricant.Particularly for some grape sugar amide such as HLB value at least about the sugared amide of N-alkyl-N-methoxy-propyl grape of 7, situation is such.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 grape sugar amide fixative is dissolved in the vaseline.Other suitable emulsifying agent comprises: dodecyl polyoxyethylene ether-2 (meets structural formula CH 3(CH 2) 17(OCH 2CH 2) nThe polyglycol ether of the 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 lubricant, obtains basic mixture uniformly with activation.For example, about 1: 1 mixture of N-coco group-N-methyl grape sugar amide and vaseline will can not fuse in the single-phase mixture usually, when add 20%, will fuse in the single-phase mixture during as the stearyl polyoxyethylene ether-2 of emulsifying agent and Arlacel-65 1: 1 mixture.
Perhaps use separately, perhaps can be with the said fixing agent batching of other type that be used in combination, that can be used as fixative comprise wax, as Brazil wax, ceresine, Cera Flava, candelilla wax, paraffin, ceresine, esparto wax, ouricury wax, rezowax, different paraffin and other known wax.These high-melting-point materials can help compositions is fixed on desirable surface of band or position.In addition, microwax also is effective fixative.Microwax helps low molecular hydrocarbons " lock " in skin care compositions.Preferred wax is paraffin.The example of particularly preferred another kind of fixative is that paraffin such as Parrafin S.P434 (derive from Strahl and Pitsch Inc.P.O.Box 1098 West Babylon, NY11704).
The amount that adds the fixative in the compositions will depend on various factors, comprise the active substance (lubricant) that relates to, related specific fixative, whether other component in compositions (if existence) needs emulsifying agent that fixative is dissolved in the medium factor of other component.Compositions can comprise the fixative of about 5-90%.Preferred compositions comprises about 5%-50%, the fixative of best about 10-40%.
Compositions also comprises other component that is present in this class emulsifying agent, cream, cream, washing liquid, powder, suspending agent etc. usually.These components comprise water, viscosity modifier, spice, disinfection activating agent, antiviral agent, vitamin, medical active agent, film former, Aloe, deodorizer, opacifier, contracting agent, solvent etc.In addition, also can add the life-span of stabilizing agent, as cellulose derivative, protein and lecithin with enhancing composition.Described these materials, and can use in lotion composition of the present invention at the knowing of this area in the proper ratio as the additive of described prescription.
If use water-based skin care composition, then need antiseptic.Suitable antiseptic comprises propylparaben, methyl butex, benzylalcohol, benzyl dimethyl ammonium salt, calcium phosphate,tribasic, BHT or acids such as citric acid, tartaric acid, maleic acid, lactic acid, malic acid, benzoic acid, salicylic acid etc.; Suitable viscosifier comprise described effective fixative.Other suitable viscosifier comprise alkyl galactomannans, silicon dioxide, Talcum, magnesium silicate, sorbitol, colloidal silica, Magnesiumaluminumsilicate, zinc stearate, wool wax alcohol, sorbiton, sesquioleate (sesquioleate), cetyl hydroxy ethyl cellulose and other modified cellulose.Suitable solvent comprises propylene glycol, glycerol, Cyclomethicone, Polyethylene Glycol, hexanediol, dihydroxylic alcohols or polyhydroxyl solvents.Suitable vitamins is A, D-3, E, B-5 and E acetas.
C. handle the diaper top layer with lotion composition
When preparation treated band product of the present invention, preferably skin care compositions is applied on the surface of band (i.e. the surface that contacts with wearer).But, because some skin care compositions herein can see through or through some band material transitions described in the invention, also skin care compositions can be applied to the medicated clothing face of band, like this at the skin care compositions of health face distribution effective dose.In fact, in some cases, though only be applied to a surface, this may be a preferable methods with the benefit of the band of fully being handled (two sides processing).
The coating process that can use any distribution to have the lubriation material of fusion or liquid consistency is applied to skin care compositions on the band.Suitable coating process comprises: coating (for example intaglio plate or narrow slit coating), spraying, printing (for example hectographic printing), extrude or the combination of these coating processes, or other coating process, for example skin care compositions is sprayed on the surface such as felt wrapped roll of rotation, said composition is transferred on the surface of diaper band again through contact then.If need, skin care compositions can be applied to the both sides of band.
The mode that applies skin care compositions to band should be as the criterion by the skin care compositions supersaturation with band.If band is handled with excessive skin care compositions, migration of skin care composition may appear so to the undesirable position of articles for use, for example, enter the inside of articles for use, will produce negative interaction to the absorbability of following absorbent cores like this.In addition, the benefit for the skin care compositions that obtains treatment and/or protective also need not to make band saturated.
The minimum dosage that is applied to the skin care compositions on the band is for reducing erythema, diaper rash, erythema, chafing or other harmful dermopathic least effective dose (LED) (compositions also reduces BM and adheres on the wearer skin).The effective dose of skin care compositions depends on used specific skin care compositions to a great extent.Because the lubricant basic fixed on the surface of band, therefore, for giving desirable skin care benefits, only needs a spot of skin care compositions.The compositions of described relatively small amount is enough to give the treatment of band with described hope and/or the benefit of the skin care compositions of protective.
One or two surface that skin care compositions evenly can be applied to band go up or part surface on.Preferably, wait with certain pattern form such as strip, square shape, point or helical form and apply skin care compositions.The band section aligned that will contact with wearer in preferred skin care compositions and the use.Most preferably, described in embodiment hereinafter, skin care compositions is coated the locus of discontinuity of band with strip, as usually the tablet of 1.4 inches wide (diapers laterally, cover the far lateral side of band) and 11.75 inches long (diaper vertical) being positioned over the crotch area of band surface.
In addition, skin care compositions also can be applied on one or two surface of band unevenly." inhomogeneous " refers to, and the consumption of skin care compositions, the pattern of distribution etc. can change on the band surface.Some surface treated of band part skin care compositions that can have more or less amount for example comprises in its surface the surface portion without any skin care compositions.
Can skin care compositions be applied in any step of assembly process on the fabric of a band or a formation band part.For example can before packing, skin care compositions be applied on the band of Manufactured goods.Also can skin care compositions be applied on band or the fabric in addition at skin care compositions with before other material combination becomes final products, or with other combination of components of articles for use before the repacking position or as pretreated raw material.
Normally the lotion composition with molten condition is applied on the band.Because just fusion of skin care compositions apparently higher than room temperature the time, therefore, the form with heating coating is applied to it on band usually.Usually, be in application to before the band, skin care compositions is heated to about 100 ℃ of about 35-, about 90 ℃ of preferred 40-.After the fusion skin care compositions is applied to band, allow its cooling curing, so that on the band surface, form cured coating or thin film.Preferably will apply the cools/solidifies that process is designed to help compositions.
When being applied to skin care compositions of the present invention on the band, preferred narrow slit coating, extrusion coated method, intaglio plate coating, spraying.Fig. 5 has illustrated a kind of preferable methods, and this method comprises, is reequiping operating period, by the narrow slit coating skin care compositions is applied to diaper continuously or discontinuously and stops on the band.With reference to figure 5, conveyer belt 1 moves and gets back to conveyer belt 2 according to the arrow indicated direction on slewing rollers 3 and 4.Conveyer belt 1 is delivering the diaper 5 that does not add skin care liquid and is contacting with narrow slit coating station 6, here use heat, fused (for example 65 ℃) skin care compositions is coated with stopping band spare 7.After leaving narrow slit coating station 6, diaper 5 has become and has had the treated diaper that stops band 8.Transferring to the amount that stops the skin care compositions on the band spare 7 can following method control: (1) is by the speed of the skin care compositions of narrow slit coating station 6 coating fusings; And/or (2) are in the speed of service of narrow slit coating station 6 lower conveyor belts; And/or the contact position of (3) narrow slit coating station.If be necessary, the position of coating station should be that coating stops band spare 7 and top flat 38 parts, makes on band and the top flat and is distributed with skin care compositions.
Fig. 6 explanation was coated with skin care compositions narrow slit of the present invention another program on the touching diaper band before being assembled into final products at band and other raw material.With reference to figure 6, nonwoven band fabric 1 uncoiling (according to arrow 2a indicated direction rotation) and advance to contact narrow slit spraying workshop section 6 from the female roller 2 that stops band sprays the one side of this fabric with hot, fused (for example 65 ℃) skin care compositions in spraying workshop section.After leaving narrow slit spraying workshop section 6, nonwoven barrier fabric 1 has become the treated band net that stops by 3 expressions.Make the treated band fleece 3 that stops walk around guide roller 4 and 8 then, be wound on then (according to the rotation of arrow 10a indicated direction) on female roller 10.Thereby treated fabric web is used on the diaper base and forms the band spare that stops that stops band in the repacking operation.
Skin care compositions on D, top flat and the band
As shown in Figure 7, first kind of skin care compositions can be applied to top flat, simultaneously second kind of skin care compositions be applied on one or more bands.Find now on top flat and band, to add simultaneously that skin care compositions is better than independent result of use.Treated top flat and band be in conjunction with making the skin care compositions transmission area bigger, and to remain on the probability of health status bigger for all parts of wearer skin like this.
As mentioned above, the prescription of first and second kinds of skin care compositionss can be identical or different.But find if first and second kinds of skin care compositions differences then can be designed to diaper to have specific skin effect at specific skin region.For example because top flat in use often contacts with the buttocks sheet with genitals, so can with specifically be mixed with provide the prevention and or the treatment diaper rash first kind of skin care compositions be distributed on the top flat.Because band then often contacts with shank with the waist of wearer, reduce to rub and or the benefit of erythema so second kind of skin care compositions specifically can be mixed with to provide.The skin care compositions that the specific part of diaper can have concrete preparation makes the specific zone of skin reach skin-care and treatment and maintenance.In the diaper design, have great motility like this, make manufacturer can provide the product of specific design to satisfy the needs of different in a large number consumers.
The another kind variation of skin care compositions prescription is the functions of components by the said composition that distributes thereon.For example, band can be designed to hold and limit runny BM in urine and the diaper usually.It is desirable to band is hydrophobicity, particularly liquid-impermeable, crosses these materials to prevent flow of liquid.If skin care compositions is a hydrophobicity, can help band to prevent that liquid from passing through band.On the contrary, top flat needs the liquid permeability of height to enter absorbent cores so that top flat is passed in urine and menstruation fast.Being distributed with the hydrophobicity skin care compositions on the top flat can make the effect of top flat descend.Better is distribution hydrophilic skin care compositions on top flat, to keep the function of top flat.Therefore, in some versions, the skin care compositions that it is desirable to the small part top flat is to be made to promote liquid (as urine) to pass through top flat fast by hydrophilic material.Similarly, skin care compositions should have enough wettabilitys to guarantee the liquid top flat of flowing through fast.In addition, also can use the hydrophobicity skin care compositions, need only the liquid handling performance that can fully keep top flat when it is used.For example, compositions anisotropically is used for top flat and can realizes this purpose.The heterogeneity examples of applications is disclosed in the U.S. Patent application 08/908852 (P﹠amp that people such as Roe submitted on August 8th, 1997; G case 5494CR), exercise question is " diaper with top flat of skin lotion processing ", and this patent is incorporated herein by reference.
If wish to obtain hydrophilic compositions, depend on the specific component of using in the compositions, can need or need not the hydrophilic surfactant active to improve wettability.For example, the HLB value of some fixative such as N-coco group-N-methoxy-propyl grape sugar amide is at least about 7 and can be fully moistening under the situation of not adding hydrophilic surfactant.When compositions was applied on the top flat, other HLB value was lower than about 7 fixative such as C 16-C 18Aliphatic alcohol adds the hydrophilic surfactant active with needs, so that improve wettability.Similarly, if wish to obtain hydrophilic compositions, hydrophobic lubricant such as vaseline need add the hydrophilic surfactant active.Be hydrophobicity or fully keep the liquid handling performance of material if wish the wearer contact surface considered, then do not have the problem of wettability by alternate manner (as, non-homogeneous application).
Suitable hydrophilic surfactant preferably can be miscible with other component of skin care compositions, so that form mixture.Because use the disposable absorbent products that is coated with compositions may make skin sensitivity, therefore, it is quite soft and non-irritating that these surfactants are also tackled skin.Usually these hydrophilic surfactants are non-ionic, and they are not only to the skin nonirritant, and can also avoid other structure of treated diaper is produced undesirable effect.For example reduce the tensile strength of laminated paper products, the adhesive power of binding agent etc.
Suitable non-ionic surface active agent is nonmigratory basically after compositions is applied on the top flat, and has usually from about 4-20, preferred about 7~20 HLB value.Become nonmigratoryly, these non-ionic surface active agents will have usually and be higher than in the higher fusion temperature of temperature that stores, transportation, transaction and disposable absorbent article were suffered between the operating period, for example at least about 30 ℃.In this regard, these non-ionic surface active agents preferably will have the fusing point that is similar to the aforementioned fixation agent.
Be used for being coated on the compositions of the present invention on the top flat, suitable ionic surfactant pack is drawn together: alkylglycoside; As at the US4 that is incorporated herein by reference, the alkylglycoside ether that discloses among 011,389 people such as (, 1977.3.8 publishes) Langdon; The ester of alkyl polyethoxylated such as Pegosperse 1000MS (deriving from Lonza, Inc., Fair Lawn, New Jersey), average degree of ethoxylation is about 20 from about 2-, preferably from about 2-about 10, C 12-C 18Anhydro sorbitol one ester, diester and/or three esters of the ethoxylation of fatty acid, as TWEEN60 (the stearic acid Isosorbide Dinitrate of average degree of ethoxylation about 20) and TWEEN 61 (the stearic acid Isosorbide Dinitrate of average degree of ethoxylation about 4), and the condensation product of aliphatic alcohol and about 54 moles of ethylene oxide of about 1-.The alkyl chain of described aliphatic alcohol normally straight chain (linear) configuration and comprise about 22 carbon atoms of about 8-.Particularly preferably be the condensation product of the oxirane of the alcohol of the alkyl that comprises about 11-22 carbon atom and the about 2-30 mole of every mol of alcohol.The example of described ethoxylated alcohol comprises: myristyl alcohol and every mol of alcohol are the condensation product of 7 moles oxirane, the condensation product of coconut alcohol (mixture of the aliphatic alcohol that alkyl chain length changes between 10-14 carbon atom) and about 6 moles of ethylene oxide.Many suitable ethoxylated alcohols can obtain from market, and they comprise TERGITOL 15-S-9 (C 11-C 15The condensation product of linear alcohol and 9 moles of ethylene oxide), sell by Union Carbide Corporation; KYRO EOB (C 13-C 15The condensation product of linear alcohol and 9 moles of ethylene oxide), by The Procter ﹠amp; Gamble Co. sells; The surfactant of the NEODOL trade mark (selling), particularly NEODOL25-12 (C by shell chemical company 12-C 15The condensation product of linear alcohol and 12 moles of ethylene oxide) and NEODOL 23-6.5T (C 12-C 13Linear alcohol with distill the condensation product that (topping) removes 6.5 moles of ethylene oxide of some impurity); Especially the surfactant of the PLURAFAC trade mark (by BASF AG's sale), particularly PLURAFACA-38 (C 18The condensation product of straight chain alcohol and 27 moles of ethylene oxide).(some hydrophilic surfactant, particularly ethoxylated alcohol such as NEODOL25-12 also can play the alkyl ethoxylated lubricant).Other example of preferred ethoxylated alcohol surfactant comprises: Brij surfactant of ICI ' class and composition thereof, wherein Brij72 (being Steareth-2) and Brij76 (being Steareth-10) are particularly preferred.In addition, ethoxylation to the spermol of the about 10-20 of average degree of ethoxylation and the mixture of stearyl alcohol also can be used as hydrophilic surfactant.
Being used for another kind of suitable surfactant of the present invention comprises: by the Aerosol OT of American CyanamidCompany sale, i.e. aerosol OT.
Being used for the suitable surfactant of a class in addition of the present invention comprises: silicone copolymers such as GeneralElectric SF1188 (copolymer of polydimethylsiloxane and polyoxy alkylidene ether) and General ElectricSF1228 (silicone-polyether copolymer).These silicone surfactants can be used in combination with the hydrophilic surfactant such as the ethoxylated alcohol of above-mentioned other kind.Having found that these silicone surfactants are being low to moderate 0.1%, is effective during the concentration of 0.25-1.0% (weight with compositions is as the criterion) more preferably from about.
If will obtain hydrophilic compositions, the amount that the wettability of skin care compositions is increased to the required hydrophilic surfactant of desired value will depend in part on the HLB value and the consumption of employed fixative (if use), factors such as the HLB value of employed surfactant.When needs increased the wet performance of compositions, said composition can comprise from the hydrophilic surfactant of about 0.1-about 50%.When needs increased wettability, preferably said composition comprised about 25%, the hydrophilic surfactant of about 10-20% most preferably of about 1-.
The applicant finds in order to keep or improve the health of skin under the use absorbent device condition, can reuse the absorbent device of handling with two or more skin care compositionss as described herein in a period of time (as several days), (as, contact, motion, care-giver's processing, body heat etc. after using articles for use) skin care compositions is transferred on the wearer under common service condition.In this respect, the method for maintenance or improvement absorbent item overlay area skin health may further comprise the steps:
(a) absorbent device that will have first and second skin care compositionss is administered on the wearer, in case transfer on the skin, first kind of skin care compositions provides treatment and/or protection skin benefits, and second kind of skin care compositions provides second kind of skin benefits.
(b) in the wearing process, first, second skin care compositions of at least a portion is transferred on the wearer; With
(c) with one or more other articles for use under enough frequencies of utilization repeating step (a) thereby and (b) with respect to the suitable absorbent device that does not contain first kind and second skin care compositions; keep or improve the skin health that is covered by absorbent device; and need not manual use Derma-Guard (as, skin protection person or wearer).
The key of this method is to use the absorbent device with two or more skin care compositionss, thereby and regular recycle with the accumulation mode first and second skin care compositionss are delivered on the wearer skin, to keep or to improve skin health.The applicant also finds, the compositions that each furnishings only need transmit low amount just can be enough to obtain the skin benefits that the new mode by the transmission of this accumulation formula produces.
The used articles for use of this method provide a kind of effective way, during use skin care compositions are transferred on the skin continuously.Along with compositions is transferred, they are accumulated on the skin surface to produce and the maintenance protectiveness.When discarding used articles for use or replacing used articles for use with new articles for use, repeat this circulation and be used for further compositions accumulation, surpass the compositions that single or primary articles for use itself are transmitted.Used some composition is known in preferred skin care compositions can pass horny layer (for example, preferably using vaseline herein).Therefore, even some compositions owing to cleaning, remove after the bathing, or is temporarily discontinuously used described treated articles for use herein, user still can keep some benefit of dermal compositions.Compositions benefit use up before, user is reused treated articles for use, compares with the user that does not use treated articles for use, can obtain an advantage aspect erythema and/or the rash reducing.
As mentioned above, will appreciate that usually the easier skin that makes of skin under use absorbent device situation worsens.What usually, these skins worsened shows as: erythema (also being referred to as erythroderma) and/or rash.Therefore, the applicant of this paper has described a kind of skin health that keeps or improve the absorbent device area of coverage, wherein the final result of this method is and is compared by the skin that suitable absorbent device covered that does not comprise skin care compositions, can reduce or avoid erythema and/or rash.
The concrete preparation embodiment of diaper band that the present invention is treated and top flat
Specify the present invention below and handle band and/or top flat or fabric with skin care compositions.
Embodiment 1
A. the preparation of skin care compositions
(being liquid) component of following fusing is mixed preparation skin care compositions (compositions A): vaseline (by Greenwich, the Witco company of CT obtains with Perfecta); Stearyl alcohol (by Cincinnati, the P﹠amp of OH; G company obtains with CO1897) and Aloe extract (South Hackensack, the madis Botanicals company of NJ obtains with the Kaydol of Veragel Lipoid).The percentage by weight of these compositions is as follows:
Table 1
Component Weight %
Vaseline ????58
Stearyl alcohol ????41
Aloe ????1
B. prepare treated diaper leg cuffs under 170 temperature by the heat seeling coating method, skin care compositions A is put into the jar of heating.Using a kind of contact spreader then (is Meltex EP45 hotmelt spreader head, in 170 operations) directly said composition is coated on 1.4 inches wide (diaper transverse directions, the far lateral side that stops band is capped) and the surface that stops band of the diaper of 11.75 inches long (diaper is vertical) areas, applying area is positioned at base in longitudinal center, thereby the one or both ends of each elastomer isolators are covered by skin care compositions.Coating weight is 0.01168/ inch 2(18.0g/m 2).With the binding agent of special preparation as the aforementioned Findly H9254 elastomer isolators is linked to each other with stopping band spare in operation.
Embodiment 2
The skin care compositions A of preparation among the embodiment 1 is coated on respectively stopping on the band of diaper with the bar of 1.4 inches wide (the diaper transverse direction is capped the far lateral side that stops band), and extends to the whole length that stops band.Coating weight is the 0.0116g/ inch 2(18.0g/m 2).
Embodiment 3
With among the embodiment 1 preparation skin care compositions A with 1.4 inches wide (diaper transverse directions, the far lateral side that stops band is capped) and the bar of 8 inches long (diaper is vertical) areas be coated on the surface that respectively stops band of diaper, applying area is centered close to the shrinking zone that stops band, thereby each end of elastomer isolators is not covered by skin care compositions.Coating weight is the 0.0077g/ inch 2(12.0g/m 2).
Embodiment 4
A. the preparation of skin care compositions
(being liquid) component of following fusing is mixed the anhydrous skin care compositions B of preparation: mineral oil is (by the Carnation white mineral oil of Wito company production, USP) and 16/stearyl alcohol (primary alconol of linear C16-C18, by Cincinnati, the P﹠amp of OH; G company obtains with TA-1618).The percentage by weight of these compositions is as follows:
Table II
Component Weight %
Mineral oil ????65
16/stearyl alcohol ????35
B. prepare treated lower limb hoop by the heat seeling coating method
Under 170 temperature, skin care compositions B is put into the jar of heating.Using a kind of contact spreader then (is Meltex EP45 hotmelt spreader head, in 170 operations) directly with said composition with 1.4 inches wide (diaper transverse directions, the far lateral side that stops band is capped) and 11.75 inches long (diaper is vertical) areas be coated on stopping on the band of diaper, applying area to be stopping that the band shrinking zone is the center, thereby the one or both ends of each elastomer isolators are covered by skin care compositions.Coating weight is the 0.0116g/ inch 2(18.0g/m 2).
Embodiment 5
A. the preparation of skin care compositions
(being liquid) component of following fusing is mixed the anhydrous skin care compositions C of preparation: mineral oil is (by the Carnation white mineral oil of Wito company production, USP), 16/stearyl alcohol (primary alconol of linear C16-C18, by Cincinnati, the P﹠amp of OH; G company obtains with TA-1618) and Ceteareth10 (the pure b-oxide of linear C16-C18, average ethoxyquin degree is 10, is produced by ICI America).The percentage by weight of these compositions is as follows:
Table III
Component Weight %
Mineral oil ????50
16/stearyl alcohol ????35
????Ceteareth?10 ????15
B. prepare treated diaper by the heat seeling coating method
Under 170 temperature, compositions C is put into the jar of heating.Using a kind of contact spreader then (is Meltex EP45 hotmelt spreader head, in 170 operations) said composition is coated on diaper stops 1.4 inches loose (diaper transverse directions on the band, the far lateral side that stops band is capped) and the zone of 11.75 inches long (diaper is vertical) on, applying area to be stopping that the band shrinking zone is the center, thereby the one or both ends of each elastomer isolators are covered by skin care compositions.Coating weight is the 0.0116g/ inch 2(18.0g/m 2).
Embodiment 6
A. the preparation of skin care compositions
(being liquid) component of following fusing is mixed the anhydrous skin care compositions D of preparation: vaseline (by Greenwich, the Witco company of CT obtains with Perfecta); 16/stearyl alcohol (primary alconol of linear C16-C18, by Cincinnati, the P﹠amp of OH; G company obtains with TA-1618) and Ceteareth10 (the pure b-oxide of linear C16-C18, average ethoxyquin degree is 10, produce by ICI America) and 1: 1 Lipoid of Veragel and Laydol (mineral oil bag Aloe extract is produced by Dr.madis experiment company).The percentage by weight of these compositions is as follows:
Table IV
Component Weight %
Vaseline ????49
Stearyl alcohol ????35
????Ceteareth?10 ????15
Aloe ????1
B. prepare treated diaper by the heat seeling coating method
Under 170 temperature, skin care compositions D is put into the jar of heating.Using a kind of contact spreader then (is Meltex EP45 hotmelt spreader head, in 170 operations) said composition is coated on 1.4 inches loose (the diaper transverse directions that diaper stops band, the far lateral side that stops band is capped) and the zone of 11.75 inches long (diaper is vertical) on, applying area to be stopping that the band shrinking zone is the center, thereby the one or both ends of each elastomer isolators are covered by skin care compositions.Coating weight is the 0.0116g/ inch 2(18.0g/m 2).
Embodiment 7
Under 170 temperature, the compositions A of embodiment 1 preparation is put into the jar of heating.Use a kind of contact spreader (be MeltexEP45 hotmelt spreader head, 5 narrow slits are arranged) said composition to be coated on the top flat of articles for use then, these and the parallel longitudinal of articles for use with strip in 170 operations.Particularly, be coated with 5, every 0.25 inch wide (articles for use transverse direction) and 11.75 inches long (diaper is vertical).Coating weight is 7.7 milligrams/inch 2(12.0g/m 2, 1.19mg/cm 2).Distance between every is 0.31 inch.
Then skin care compositions A is coated on the surface that stops band of diaper with the bar of 1.4 inches wide (the diaper transverse direction is capped the far lateral side that stops band), and extends to the whole length that stops band.Coating weight is the 0.0116g/ inch 2(18.0g/m 2).Coating process is identical with embodiment 1.
Embodiment 8
Under 170 temperature, the compositions D of embodiment 6 preparations is put into the jar of heating.Use a kind of contact spreader (be Meltex EP45 hotmelt spreader head, 5 narrow slits arranged) said composition to be coated on the top flat of articles for use then, these and the parallel longitudinal of articles for use in the mode of even coating in 170 operations.Particularly, be coated with 1,2.5 inches wide (diaper transverse direction) and 11.75 inches long.Coating weight is 7.7 milligrams/inch 2(12.0g/m 2, 1.19mg/cm 2).Align with the articles for use longitudinal centre line in this center.
Then skin care compositions A is coated on the surface that stops band of diaper with the bar of 1.4 inches wide (the diaper transverse direction is capped the far lateral side that stops band), and extends to the whole length that stops band.Coating weight is the 0.0116g/ inch 2(18.0g/m 2).Coating process is identical with embodiment 1.

Claims (10)

1. absorbent device of dressing near skin by wearer, this absorbent device comprises base and is connected the band of this base; This base comprises outer cover and the absorbent cores between described top flat and egative film, and described outer cover comprises egative film and the liquid-impermeable top flat that links to each other with this egative film; Described every band have first surface and with the first surface opposing second surface, it is characterized in that:
The skin care compositions of effective dose on described band distributes, the said group compositions of protecting is semisolid or solid-state at 20 ℃, and can be transferred to small part on the skin of wearer.
2. the absorbent device of claim 1, wherein said band comprises the band that stops that links to each other with described base; Preferably, the wherein said band that stops comprises that activity stops band spare and elastomer isolators; The described band spare that stops is the far lateral side that proximal edges is arranged and be separated by with said proximal edges, and described proximal edges links to each other with said outer cover, and the part of said far lateral side is not fixed on this absorbent item; Thereby said elastomer isolators interrelates with described far lateral side in operation and makes the described band spare that stops erectly away from said outer cover.
3. the absorbent device of claim 2, the wherein said band that respectively stops has alar part and recessed road part, preferred wherein said skin care compositions is coated said recessed road part at least, and more preferably wherein said skin care compositions is applied to described recessed road part and alar part.
4. the absorbent device of aforementioned each claim, wherein said band comprises the sealing band that is connected to described base, preferred wherein said sealing band comprises the edge and the outward extending flank one of from the described limit of described absorbent cores, more preferably, wherein said flank comprises the first movable band spare that at least one and described base is connected, with the operation of described flank on the elastic component that links to each other.
5. the absorbent device of claim 4, the wherein said first band spare link to each other with described top flat to form the surface of described flank, and preferred skin care compositions wherein is distributed on the described surface of the said first band spare.
6. the absorbent device of aforementioned each claim, wherein said skin care compositions comprises
(i) about 10%-95% 20 ℃ be plasticity or fluid consistency lubricant and
(ii) about 5%-90% can be fixed to described lubricant the reagent of described band.
7. the absorbent device of claim 6, wherein said lubricant comprises oil-based lubricant, the fatty acid ester lubricant, silicone based lubricant, the fatty acid cane sugar ester lubricant, alkyl ethoxylate series lubricant agent, or the mixture of these lubricants, preferred wherein said fixative are mulit-hydroxy fatty acid ester, polyhydroxy fatty acid amide, C14-C22 aliphatic alcohol, C12-C22 fatty acid, C14-C22 alcohol ethoxylate and composition thereof; More preferably said skin care compositions further comprises Aloe extract.
8. the absorbent device of aforementioned each claim, wherein second of effective dose kind of skin care compositions is distributed on the described top flat, and described second kind of skin care compositions is semisolid or solid at 20 ℃, and can be transferred to small part on the skin of wearer.
9. the absorbent device of claim 8, wherein said skin care compositions is different with the prescription of described second kind of skin care compositions, and preferred wherein said skin care compositions is hydrophobic, and described second kind of skin care compositions is hydrophilic; Or wherein said skin care compositions is identical with second kind of skin care compositions prescription.
10. the absorbent device of aforementioned arbitrary claim, wherein said skin care compositions is distributed in first surface, thus the described first surface of preferred described band in use contacts the organizator surface with wearer skin; Or wherein this first surface comprises in use away from the surface of wearer forming the medicated clothing face, and said skin care compositions is transferred to described second surface by described first surface.
CN97181502A 1996-12-03 1997-12-03 Absorbent articles having cuffs with skin-care composition disposed thereon Expired - Fee Related CN1121241C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US08/766,386 1996-12-03
US08/766,386 US6156024A (en) 1996-12-03 1996-12-03 Absorbent articles having lotioned leg cuffs
US08/962,312 1997-10-31
US08/962,312 US6120488A (en) 1994-11-28 1997-10-31 Absorbent articles having cuffs and topsheet with skin care composition(s) disposed thereon
US08/962,310 US6166285A (en) 1994-11-28 1997-10-31 Absorbent articles having cuffs with skin care composition disposed thereon
US08/962,310 1997-10-31

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CN1251534A true CN1251534A (en) 2000-04-26
CN1121241C CN1121241C (en) 2003-09-17

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CN102573732A (en) * 2009-12-14 2012-07-11 花王株式会社 Method for manufacturing absorptive article
CN102573732B (en) * 2009-12-14 2016-06-08 花王株式会社 The manufacture method of absorbent commodity
CN107847369A (en) * 2015-06-30 2018-03-27 尤妮佳股份有限公司 Disposable diaper
CN107847369B (en) * 2015-06-30 2021-06-04 尤妮佳股份有限公司 Disposable diaper having a disposable diaper

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CN1121241C (en) 2003-09-17
HU225516B1 (en) 2007-01-29
HUP0003235A3 (en) 2004-08-30
CZ199499A3 (en) 1999-11-17
IL130231A0 (en) 2000-06-01
HUP0003235A2 (en) 2001-01-29
JP3768245B2 (en) 2006-04-19
CO4910110A1 (en) 2000-04-24
NO992679L (en) 1999-08-03
MY120713A (en) 2005-11-30
CZ297044B6 (en) 2006-08-16
EP0967949A2 (en) 2000-01-05
NO992679D0 (en) 1999-06-02
MXPA99005171A (en) 2002-07-02
TR199901797T2 (en) 1999-10-21
KR20000069286A (en) 2000-11-25
JP2002509457A (en) 2002-03-26
BR9713681A (en) 2000-03-28

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