WO2014050600A1 - 不織布及び吸収性物品 - Google Patents
不織布及び吸収性物品 Download PDFInfo
- Publication number
- WO2014050600A1 WO2014050600A1 PCT/JP2013/074735 JP2013074735W WO2014050600A1 WO 2014050600 A1 WO2014050600 A1 WO 2014050600A1 JP 2013074735 W JP2013074735 W JP 2013074735W WO 2014050600 A1 WO2014050600 A1 WO 2014050600A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- acid
- nonwoven fabric
- blood
- chain hydrocarbon
- imparting agent
- Prior art date
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent 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
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent 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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent 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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
- A61F13/51108—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections the top sheet having corrugations or embossments having one axis relatively longer than the other axis, e.g. forming channels or grooves in a longitudinal direction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent 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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51113—Topsheet, i.e. the permeable cover or layer facing the skin comprising an additive, e.g. lotion or odour control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent 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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent 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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
- A61F13/5121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations characterised by the vertical shape of the apertures, e.g. three dimensional apertures, e.g. macro-apertures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/50—Lubricants; Anti-adhesive agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
- A61F2013/8455—Additives, e.g. for odour, disinfectant or pH control being lubricants
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
Definitions
- the present disclosure relates to a nonwoven fabric and an absorbent article including the nonwoven fabric as a top sheet.
- Absorbent articles such as sanitary napkins, panty liners, etc. have improved basic performance due to many years of technical development, and leaks etc. after absorbing excretion such as menstrual blood compared to before.
- the research is on further enhancement of functionality, for example, having a feeling of wearing close to underwear, and that the topsheet is smooth even after absorbing excretion such as menstrual blood. Has been done.
- menstrual menstrual blood may contain components such as endometrium, and the viscosity thereof is high.
- the top sheet has a sticky feeling. It is preferable that the material is smooth.
- highly viscous menstrual blood often remains in a lump state on the top sheet, and the user often feels visually uncomfortable. It is preferable not to leave it on the top sheet.
- Nonwoven fabric that can be used for a top sheet of an absorbent article
- the one described in Patent Document 1 is known.
- the non-woven fabric described in Patent Document 1 is intended to provide a non-woven fabric that is adjusted so that liquid can easily pass through convex portions, concave portions, and the like.
- Patent Document 2 discloses that a lotion composition containing a polypropylene glycol material includes an inner surface of a top sheet (clothing side surface), an inner surface of a back sheet (body side surface), an inner surface of the top sheet, and a back sheet.
- An absorbent article disposed on a base material or the like between the inner surfaces is disclosed.
- Patent Document 3 discloses an absorbent article in which a lotion composition containing a polypropylene glycol material is applied to the outer surface (surface on the body side) of a top sheet.
- the nonwoven fabric described in Patent Document 1 is designed so that liquid can easily pass therethrough, part of the fibers constituting the convex portion is oriented in the longitudinal direction, and absorbed menstrual blood is longitudinal in the convex portion. May spread. Therefore, in the nonwoven fabric described in Patent Document 1, it is considered that the function of allowing liquid to permeate is further improved. Therefore, the present disclosure aims to provide a non-woven fabric for a top sheet of an absorbent article that is hard to stick after absorption of menstrual blood, is smooth, and the absorbed menstrual blood is difficult to diffuse on the non-woven fabric. .
- the inventors of the present invention are nonwoven fabrics having a longitudinal direction and a transverse direction for a top sheet of an absorbent article, wherein the nonwoven fabric extends in the longitudinal direction. And a plurality of flange portions and a plurality of groove portions alternately arranged in the lateral direction, wherein the plurality of flange portions and the plurality of groove portions each have a plurality of through holes, and the flange portion
- a blood slipperiness imparting agent having a kinematic viscosity of 0.01 to 80 mm 2 / s at 40 ° C., a water retention of 0.01 to 4.0% by mass, and a weight average molecular weight of less than 1,000.
- the present inventors have found a non-woven fabric characterized by having a blood slipperiness imparting agent-containing region.
- the nonwoven fabric for the top sheet of the absorbent article of the present disclosure is not sticky after absorbing menstrual blood, is smooth, and the absorbed menstrual blood is difficult to diffuse on the nonwoven fabric.
- FIG. 1 is a front view of a nonwoven fabric according to one of the embodiments of the present disclosure.
- FIG. 2 is a perspective view of a portion X in FIG.
- FIG. 3 is a front view of a nonwoven fabric according to another embodiment of the present disclosure.
- FIG. 4 is a front view of a nonwoven fabric according to yet another embodiment of the present disclosure.
- FIG. 5 is a front view of the absorbent article 11 including the nonwoven fabric of the present disclosure.
- FIG. 6 is a cross-sectional view corresponding to the YY cross section of the blood slipping agent-containing region 17 of the absorbent article 11 shown in FIG.
- FIG. 7 is a diagram for explaining an example of a method for forming a perforated portion in the nonwoven fabric sheet 102.
- FIG. 1 is a front view of a nonwoven fabric according to one of the embodiments of the present disclosure.
- FIG. 2 is a perspective view of a portion X in FIG.
- FIG. 3 is a
- FIG. 8 is an electron micrograph of the skin contact surface of the top sheet in a sanitary napkin in which the top sheet contains tri-C2L oil fatty acid glycerides.
- FIG. 9 is a photomicrograph of menstrual blood with or without blood slipping agent.
- FIG. 10 is a diagram for explaining a method of measuring the surface tension.
- the absorbent article of the present disclosure will be described in detail below. [Definition] Some of the terms used in this specification are defined. ⁇ "Bag” and "Groove”
- the “ridge portion” means a portion that extends in a generally vertical direction and is higher than the other region
- the “groove portion” means a portion that extends in a generally vertical direction and is lower than the other region
- the “grooves” and “grooves” are alternately arranged in the lateral direction.
- the “saddle” and the “groove” are distinguished by their basis weights.
- the collar portion is a portion having a basis weight higher than the average basis weight of the entire nonwoven fabric
- the groove portion is a portion having a basis weight lower than the average basis weight of the entire nonwoven fabric.
- fibers oriented in the machine direction mean fibers that are oriented in the range of ⁇ 45 ° and less than + 45 ° with respect to the machine direction.
- the fiber orientated in a vertical direction may be abbreviated as a longitudinally oriented fiber.
- a fiber oriented in the transverse direction means a fiber oriented in a range of more than ⁇ 45 ° and less than + 45 ° with respect to the transverse direction perpendicular to the longitudinal direction.
- the fiber orientated in a horizontal direction may be abbreviated as a horizontally oriented fiber. Note that fibers oriented at ⁇ 45 ° or + 45 ° with respect to the longitudinal direction (that is, fibers oriented at ⁇ 45 ° or + 45 ° with respect to the transverse direction) are longitudinally oriented fibers and transversely oriented fibers. It is not included in any of.
- a “through hole” relating to a nonwoven fabric is a hole penetrating from a surface on which the nonwoven fabric is present (for example, a skin contact surface on the top sheet) to an opposite surface (for example, a clothing side surface on the top sheet).
- Body fluid for example, menstrual blood that has reached a certain surface of the nonwoven fabric (for example, the skin contact surface of the top sheet) passes through the through-hole to the opposite surface (for example, the clothing side surface of the top sheet).
- the through hole can be formed in the flange and / or the groove.
- the through-hole is not particularly limited as long as it has the above function, and examples thereof include a perforated portion formed by a perforating method, an opening formed by reducing the fibers of a non-woven fabric in a certain area, and the like. It is done.
- the perforated part and the opening part may be formed in the flange part and / or the groove part.
- the “excretion opening contact area” relating to the top sheet means an area in the top sheet that comes into contact with the wearer's excretion opening (small labia or the like).
- the position of the excretory opening contact area varies depending on the size or the like of the absorbent article, but in the case of an absorbent article having a side flap, generally, the longitudinal direction passing through the center in the width direction of the absorbent article.
- the inside of the area defined by the embossing that is continuously or discontinuously arranged so as to surround the direction line and the intersection of the width direction line passing through the longitudinal center of both wings is the excretory opening contact area is there.
- an embossing disposed continuously or discontinuously so as to surround the widthwise center and the longitudinal center of the absorbent article. Although defined, it is an excretory opening contact area.
- FIG. 1 is a front view of a nonwoven fabric according to one of the embodiments of the present disclosure
- FIG. 2 is a perspective view of portion X of FIG.
- the nonwoven fabric 1 shown in FIGS. 1 and 2 has a longitudinal direction L and a transverse direction C.
- the nonwoven fabric 1 shown in FIGS. 1 and 2 has a plurality of flange portions 2 and a plurality of groove portions 3 that extend in the longitudinal direction L and are alternately arranged in the transverse direction C, and the flange portions 2 and the groove portions 3.
- Each have a plurality of through holes 4.
- the through-holes 4 of the heel part 2 are a plurality of perforated parts 4 ′ formed by perforation, and the through-holes 4 of the groove part 3 are blood slipping agents.
- the opening 4 ′′ is formed by reducing the amount of fibers in the groove 3 when the nonwoven fabric before being applied is manufactured.
- lubricity imparting agent are mentioned later.
- the groove part 3 has the connection part 5 which connects two adjacent collar parts 2 between two adjacent opening part 4 ''.
- the content of fibers oriented in the transverse direction C is higher than the content of fibers oriented in the longitudinal direction L in the connecting portion 5.
- the nonwoven fabric 1 shown in FIGS. 1 and 2 has about 0.5 to about 5.0 through holes 4 per 1 cm 2 area of the nonwoven fabric 1.
- the heel part 2 has a kinematic viscosity at 40 ° C. of about 0.01 to about 80 mm 2 / s and a water retention of about 0.01 to about 4.0% by mass. And a blood slipping agent-containing region comprising a blood slipping agent having a weight average molecular weight of less than about 1,000.
- the heel part 2 includes a blood slipperiness imparting agent having a basis weight of about 1 to about 30 g / m 2 in the blood slipperiness imparting agent-containing region. The blood slipperiness imparting agent will be described later.
- FIG. 3 is a front view of another embodiment of the nonwoven fabric of the present disclosure.
- the nonwoven fabric 1 shown in FIG. 3 has a plurality of ridges 2 and a plurality of grooves 3 that have a longitudinal direction L and a transverse direction C, and extend in the longitudinal direction L and are alternately arranged in the transverse direction C. Have.
- each of the heel part 2 and the groove part 3 has a plurality of through holes 4.
- the through holes 4 of the heel part 2 are perforated parts 4 ′ formed by perforation, and the perforated parts 4 ′ of the heel part 2 are arranged in a staggered manner.
- the through-hole 4 of the groove part 3 is an opening part 4 '' formed at the time of manufacturing the nonwoven fabric before applying the blood slipperiness imparting agent.
- the groove part 3 has the connection part 5 which connects two adjacent collar parts 2 between two adjacent opening part 4 ''.
- FIG. 4 is a front view of still another embodiment of the nonwoven fabric of the present disclosure.
- the nonwoven fabric 1 shown in FIG. 4 has a plurality of ridges 2 and a plurality of grooves 3 that have a longitudinal direction L and a transverse direction C, and extend in the longitudinal direction L and are alternately arranged in the transverse direction C.
- the heel part 2 and the groove part 3 each have a plurality of through holes 4.
- the through hole 4 of the collar portion 2 is a perforated portion 4 ′ formed by perforation.
- the through-hole 4 of the groove part 3 contains both perforated part 4 'and opening part 4' 'formed in the case of manufacture of the nonwoven fabric before apply
- the groove part 3 has the connection part 5 which connects the two adjacent collar parts 2 between two adjacent opening part 4 ''.
- the content rate of a longitudinally-oriented fiber and a laterally-oriented fiber is measured as follows. (1) Prepare a digital microscope. An example of the digital microscope is a digital microscope VHX-100 manufactured by Keyence Corporation. (2) The sample to be measured is set on the observation table so that the vertical and horizontal directions are clear.
- the heel preferably has a basis weight of from about 15 to about 250 g / m 2 , and more preferably from about 20 to about 120 g / m 2 . If the basis weight is less than about 15 g / m 2 , the buttocks tend to be crushed, and menstrual blood that has been absorbed once tends to return easily under pressure. In addition, when the basis weight is higher than about 250 g / m 2 , menstrual blood is less likely to move downward (for example, an absorbent body), menstrual blood is retained in the buttocks, and the wearer may feel uncomfortable. .
- the grooves preferably have a basis weight of about 3 to about 150 g / m 2 , and more preferably about 5 to 80 g / m 2 .
- the basis weight is less than about 3 g / m 2 , when used as a top sheet, the strength of the groove may be insufficient and may be damaged.
- the basis weight exceeds about 150 g / m 2 , menstrual blood that has reached the groove portion is less likely to move downward (absorbent body), menstrual blood is retained in the groove portion, and the wearer may feel uncomfortable. is there.
- the nonwoven fabrics of the present disclosure preferably have an average basis weight of about 10 to 200 g / m 2 , and more preferably about 20 to about 100 g / m 2 .
- the average basis weight is less than about 10 g / m 2 , when used as a top sheet, the nonwoven fabric may have insufficient strength and may be damaged.
- the average basis weight exceeds about 200 g / m 2 , menstrual blood may stay in the nonwoven fabric.
- the basis weight of the heel and groove and the average basis weight of the nonwoven fabric are measured as follows. (1) Mark the range to be measured (the ridge, groove or nonwoven fabric) and measure the area: SA ⁇ (m 2 ). In order to reduce the error, marking is performed so that the total area of the sample exceeds 5 cm 2 .
- the marked range is cut out with a sharp blade, for example, a replacement blade of a cutter, and the total mass: TM (g) is measured.
- the blood slipping agent-containing region of the buttocks preferably contains about 1 to about 30 g / m 2 , more preferably about 2 to about 20 g / m 2 , and More preferably, it is contained in the basis weight range of about 3 to about 10 g / m 2 .
- the basis weight is less than about 1 g / m 2
- menstrual blood that has reached the nonwoven fabric tends to remain in place without quickly moving to the absorbent body.
- the said basic weight exceeds about 30 g / m ⁇ 2 >, there exists a tendency for the sticky feeling during wear to increase.
- the buttocks include a blood slipperiness-imparting agent
- menstrual blood that has reached the buttocks can easily slide down into the absorbent article before spreading in the longitudinal direction along the longitudinally oriented fibers. Become. Thereby, it is suppressed that the top sheet is colored red with menstrual blood, and the fog caused by menstrual blood adhering to the skin is suppressed, and the disgust of appearance is reduced.
- the groove portion may have a blood slipperiness imparting agent-containing region including a blood slipperiness imparting agent.
- the groove portion has the blood slipperiness imparting agent-containing region, the menstrual blood is easily slid down into the absorbent article before the absorbed menstrual blood diffuses in the lateral direction. This suppresses that the top sheet is colored red with menstrual blood.
- lubricity imparting agent which a nonwoven fabric contains is measured as follows. (1) Using a sharp blade, for example, a cutter blade, the range to be measured of the nonwoven fabric is cut out so as not to change its thickness, and a sample is obtained. (2) The area of the sample: SA ⁇ (m 2 ) and the mass: SM 0 (g) are measured. (3) The sample is stirred for at least 3 minutes in a solvent in which the blood slipperiness-imparting agent is soluble, for example, ethanol, acetone, etc., and the blood slipperiness-imparting agent is dissolved in the solvent.
- a solvent in which the blood slipperiness-imparting agent is soluble for example, ethanol, acetone, etc.
- the sample is filtered on the filter paper whose mass has been measured, and the sample is thoroughly washed with a solvent on the filter paper.
- the sample on the filter paper is dried in an oven at 60 ° C.
- the mass of the filter paper and the sample is measured, and the mass of the filter paper is subtracted therefrom to calculate the mass of the sample after drying: SM 1 (g).
- the collar part has a plurality of through holes (particularly, the collar part has a plurality of perforated parts), (1) The speed of transition of menstrual blood that has reached the nonwoven fabric (from the skin contact surface of the top sheet to the clothing side surface of the top sheet), (2) High flexibility due to the bulkiness of the buttocks, While maintaining (3) Further improvement of absorption performance, In particular, (3a) The difficulty of remaining menstrual blood in the buttocks (because the buttocks have a through hole), (3b) Function of the through-hole in the buttock as a temporary holding space for menstrual blood (3c) The menstrual blood that has reached the buttock can be guided to the through-hole along the inclination of the buttock (penetrated into the buttock (By forming the hole, especially the perforated part, the thickness of the collar part around the through hole is reduced and the collar part is inclined) And (4) Hardness to steam (to reduce the contact area between the buttocks and the
- the ridges and / or grooves preferably have a through hole diameter of about 0.3 mm to about 6.0 mm, and more preferably about 0.6 mm to about 3.0 mm.
- the through hole tends to be difficult to pass menstrual blood having high viscosity as a flow path.
- the diameter exceeds about 6.0 mm, menstrual blood once transferred to the absorber may return through the through hole.
- the entire nonwoven fabric, the number of through holes of the collar portion and the groove portion, the arrangement of the through holes, and the like can be appropriately selected depending on the size of the absorbent article, etc. When used, it is preferably disposed at a place where the excretory opening contact area is formed.
- the entire nonwoven fabric and / or the ridges and / or grooves are preferably about 0.5 to about 5.0, more preferably about 1.0 to about 1 cm 2 of the nonwoven fabric area. There are about 3.0 through holes. If the number is less than about 0.5, it may be difficult to achieve the effects of the present disclosure. If the number exceeds about 5.0, once absorbed menstrual blood returns to the top sheet. Problems such as come and rewet may occur.
- the area of the nonwoven fabric regarding the number of through-holes means the projection area from the thickness direction of a nonwoven fabric, and differs from the surface area of the nonwoven fabric which considered the collar part and the groove part.
- the height of the ridge is preferably about 0.1 to about 15.0 mm higher, more preferably about 0.5 to about 5.0 mm higher than the height of the groove, and more preferably About 0.5 to about 2.0 mm higher.
- the pitch of the heel portion is preferably about 1.5 to about 17 mm, more preferably about 2.0 to about 12 mm, and even more preferably about 3 to about 8 mm. This is because menstrual blood is slid down from the convex portion to the concave portion and then quickly transferred to the absorber.
- the height of a collar part and a groove part is measured with a laser displacement meter. Examples of the laser displacement system include a high-precision two-dimensional laser displacement meter LJ-G series (model: LJ-G030) manufactured by Keyence Corporation.
- the heel portion and the groove portion are the same blood slipperiness-imparting agent in each of the blood slipperiness-imparting agent-containing regions. Or a combination of the same blood slipperiness-imparting agents.
- the heel portion and the desired groove portion are different from each other in the blood slipping agent-containing region. Or a combination of different blood slip agents.
- the heel portion has a kinematic viscosity at 40 ° C. of about 0.01 to about 80 mm 2 / s, a water retention of about 0.05 to about 4.0 mass%, and less than about 1,000.
- the blood slipperiness imparting agent has a kinematic viscosity at 40 ° C. of about 0 to about 80 mm 2 / s, preferably about 1 to about 70 mm 2 / s, preferably about 3 to about 60 mm 2. More preferably, it has a kinematic viscosity of about / s, more preferably about 5 to about 50 mm 2 / s, and even more preferably about 7 to about 45 mm 2 / s.
- the kinematic viscosity is as follows: a) as the molecular weight of the blood slipperiness agent increases, b) polar groups such as carbonyl bond (—CO—), ether bond (—O—), carboxyl group (—COOH), hydroxyl group There is a tendency that the higher the ratio of (—OH) and the like, and c) the higher the IOB, the higher the ratio.
- the melting point of the blood slipperiness imparting agent is preferably 45 ° C. or less. This is because when the blood slipperiness-imparting agent contains crystals at 40 ° C., the kinematic viscosity tends to increase. In this specification, the kinematic viscosity at 40 ° C. may be simply referred to as “kinematic viscosity”.
- the kinematic viscosity is more than about 80 mm 2 / s, high viscosity of the blood slipping agent, which has reached the skin contact surface of the top sheet Along with blood, it tends to be difficult for the blood slipperiness-imparting agent to slide down into the absorbent article.
- the kinematic viscosity is measured at a test temperature of 40 ° C. using a Cannon-Fenske counterflow viscometer according to “5. Kinematic viscosity test method” of JIS K 2283: 2000.
- the blood slipperiness imparting agent has a water retention of about 0.01 to about 4.0% by mass, preferably about 0.02 to about 3.5% by mass, More preferably, it has a water content of 0.03 to about 3.0% by weight, more preferably about 0.04 to about 2.5% by weight, and about 0.05 to about 2 More preferably, it has a water retention of 0.0% by mass.
- water retention means the ratio (mass) of water that a substance can hold, and can be measured as follows. (1) Place a 20 mL test tube, a rubber stopper, a substance to be measured, and deionized water in a constant temperature room at 40 ° C. overnight. (2) In the temperature-controlled room, 5.0 g of a substance to be measured and 5.0 g of deionized water are put into a test tube. (3) In the above-mentioned temperature-controlled room, the mouth of the test tube is plugged with a rubber plug, and the test tube is rotated once and allowed to stand for 5 minutes.
- the affinity between the blood slipperiness-imparting agent and menstrual blood is reduced, and the skin contact surface of the top sheet is reduced.
- the menstrual blood that has reached tends to be less likely to slide into the absorbent article.
- the affinity with menstrual blood becomes very high, like the surfactant, and the absorbed menstrual blood remains on the skin contact surface of the top sheet, The skin contact surface tends to be red and easily colored.
- the water retention rate is as follows: a) the molecular weight of the blood slipperiness-imparting agent decreases, and b) polar groups such as carbonyl bond (—CO—), ether bond (—O—), carboxyl group (—COOH), The higher the ratio of hydroxyl groups (—OH) and the like, the larger the value tends to be. This is because the blood slipperiness-imparting agent is more hydrophilic. Further, the water retention rate tends to increase as the IOB described later increases, that is, as the inorganic value increases and the organic value decreases. This is because the blood slipperiness-imparting agent is more hydrophilic.
- FIG. 5 is a front view of an absorbent article including the nonwoven fabric of the present disclosure, more specifically, a sanitary napkin.
- FIG. 5 is a view observed from the skin contact surface side of the top sheet 12.
- the absorbent article 11 shown in FIG. 5 has a liquid-permeable top sheet 12, an absorbent body 13, and a liquid-impermeable back sheet (not shown).
- the absorbent article 11 shown in FIG. 5 also has a pair of side flaps 14, side sheets 15, and embosses 16.
- the left side is the front.
- the top sheet 12 has, on the skin contact surface, a plurality of ridges and a plurality of grooves extending in the longitudinal direction of the absorbent article. This is omitted for convenience.
- the flanges and the grooves are alternately arranged in the width direction of the absorbent article 11.
- the absorbent article 11 shown by FIG. 5 has a pair of side flap 14, the side sheet
- the absorbent article according to another embodiment of this indication is a pair of side flap, a side sheet
- the excretory opening contact area is an area defined by four embosses 16 ′, and the top sheet 12 provides blood slipperiness in the entire area of the excretion opening contact area. It has an agent-containing region 17.
- FIG. 6 is a cross-sectional view corresponding to the YY cross section of the blood slipperiness-enhancing agent-containing region 17 of the absorbent article 11 shown in FIG. 5, and shows the transition of menstrual blood to the absorber by the blood slipperiness-imparting agent. It is a figure for demonstrating typically.
- the absorbent article 11 shown in FIG. 6 includes a liquid-permeable top sheet 12, a liquid-impermeable back sheet 18, and an absorbent body 13 between the top sheet 12 and the back sheet 18.
- the top sheet 12 has a plurality of convex portions 21 and a plurality of concave portions 22 on the skin contact surface 23, and the blood slipperiness imparting agent 24 is formed on the skin contact surface 23 of the top sheet 12. Is applied.
- the blood slipperiness imparting agent 24 is shown as a droplet (or particle) on the skin contact surface 23 of the top sheet 12.
- the shape and distribution of the blood slipperiness-imparting agent are not limited to those shown in the drawings.
- menstrual blood 25 that has reached the convex portion 21 of the top sheet 12 comes into contact with the blood slipperiness imparting agent 24 present on the convex portion 21.
- a part of the blood slipperiness imparting agent 24 present on the convex portion 21 slides into the concave portion 22 together with menstrual blood 25 (menstrual blood 25 ′).
- menstrual blood 25 ′ slides down inside the recess 22 and reaches the absorber 13 (menstrual blood 25 ′′).
- menstrual blood 25 ′′ is absorbed by the absorber 13.
- the blood slipperiness imparting agent 24 having a water retention of about 0.01 to about 4.0% by mass has a certain affinity with menstrual blood 25.
- the hydrophilic portion of the blood slipperiness-imparting agent 24 for example, a hydrophilic group such as a polar group such as a carbonyl group, an oxy group, a carboxyl group, a hydroxyl group, etc., and a hydrophilic bond such as, for example, A polar bond (for example, a carbonyl bond, an ester bond, a carbonate bond, an ether bond, etc.) has a high affinity with a hydrophilic component (plasma, etc.) in menstrual blood 25, and draws the affinity component while blood slipping.
- a hydrophilic component plasma, etc.
- the hydrophobic part (for example, hydrocarbon part) of the imparting agent 24 has low affinity with the hydrophilic component (plasma or the like) in the menstrual blood 25 and repels the hydrophilic component, it acts as a so-called lubricant. Is slid down toward the absorber 13.
- the blood slipperiness-imparting agent 24 having a kinematic viscosity of about 0.01 to about 80 mm 2 / s at 40 ° C. has a very low viscosity around the body temperature of the wearer, and a part of it is combined with menstrual blood 25 Then, it slides down from the convex portion 21 to the concave portion 22, then passes through the concave portion 22 and slides into the absorbent article 11.
- the blood slipperiness-imparting agent 24 has a water retention of about 0.01 to about 4.0% by mass, the affinity for mainly hydrophilic components (plasma and the like) in menstrual blood 25 is low. It is difficult for menstrual blood 25 to remain on the top sheet 12. This is because hydrophilic components (such as plasma) in menstrual blood 25 dislike the hydrophobic portion of blood slipping agent 24. Further, in FIG. 6, the transition of menstrual blood to the absorber by the blood slipperiness-imparting agent has been schematically explained, but the function also similarly occurs in the case of the composition containing a blood slipperiness-imparting agent.
- the blood slipperiness imparting agent has a weight average molecular weight of less than about 1,000, and preferably has a weight average molecular weight of less than about 900. This is because when the weight average molecular weight is about 1,000 or more, the blood slipperiness-imparting agent itself is tacky and tends to give the wearer discomfort. Also, since the viscosity of the blood slipperiness-imparting agent tends to increase as the weight average molecular weight increases, it becomes difficult to reduce the viscosity of the blood slipperiness-imparting agent to a viscosity suitable for application by heating. As a result, the blood slipping agent may have to be diluted with a solvent.
- the blood slipperiness-imparting agent preferably has a weight average molecular weight of about 100 or more, and more preferably has a weight average molecular weight of about 200 or more. This is because when the weight average molecular weight is small, the vapor pressure of the blood slipperiness-imparting agent is high and vaporizes during storage, which may cause problems such as a decrease in the amount and odor when worn.
- weight average molecular weight refers to a polydispersed compound (for example, a compound produced by sequential polymerization, a plurality of fatty acids, and an ester produced from a plurality of aliphatic monohydric alcohols).
- a weight average molecular weight means the value of polystyrene conversion calculated
- GPC measurement conditions include the following. Model: Hitachi High-Technologies Corporation High-Performance Liquid Chromatogram Lachrom Elite Column: SHODEX KF-801, KF-803 and KF-804 manufactured by Showa Denko K.K. Eluent: THF Flow rate: 1.0 mL / min Driving amount: 100 ⁇ L Detection: RI (differential refractometer)
- the weight average molecular weight described in the Example of this specification is measured on the said conditions.
- the blood slipperiness agent preferably has an IOB of about 0.00 to about 0.60.
- IOB Inorganic Organic Balance
- IOB is an index indicating a balance between hydrophilicity and lipophilicity.
- Oda et al. IOB value calculated by inorganic value / organic value.
- the inorganic value and the organic value are represented by Fujita Minoru, “Prediction of organic compounds and conceptual diagram of organic compounds”, chemistry area Vol. 11, no. 10 (1957) p. 719-725).
- Table 1 summarizes the organic and inorganic values of the major groups by Mr. Fujita.
- the IOB is preferably about 0.00 to about 0.60, more preferably about 0.00 to about 0.50, and about 0.00 to about 0.00. More preferred is 40, and more preferred is from about 0.00 to about 0.30. This is because when the IOB is in the above range, the water holding power and kinematic viscosity easily satisfy the above requirements.
- the blood slipperiness-imparting agent preferably has a melting point of 45 ° C. or lower, and more preferably has a melting point of 40 ° C. or lower. This is because when the blood slipperiness-imparting agent has a melting point of 45 ° C. or less, the blood slipperiness-imparting agent tends to have a kinematic viscosity in the above range.
- melting point means a peak top temperature of an endothermic peak when changing from a solid state to a liquid state when measured with a differential scanning calorimeter at a heating rate of 10 ° C./min.
- Examples of the differential scanning calorimeter include a DSC-60 type DSC measuring apparatus manufactured by Shimadzu Corporation.
- the blood slipperiness-imparting agent may be liquid at room temperature (about 25 ° C.) or solid as long as it has a melting point of about 45 ° C. or lower, that is, even if the melting point is about 25 ° C. or higher. Or less than about 25 ° C. and has a melting point of, for example, about ⁇ 5 ° C., about ⁇ 20 ° C.
- the blood slipperiness-imparting agent has a lower melting point, but preferably has a low vapor pressure.
- the blood slipping agent has a vapor pressure of preferably about 0 to about 200 Pa, more preferably about 0 to about 100 Pa at 25 ° C. (1 atm), and about 0 to about 10 Pa. More preferably, it is more preferably from about 0 to about 1 Pa, and even more preferably from about 0.0 to about 0.1 Pa.
- the vapor pressure is preferably about 0 to about 700 Pa at 40 ° C. (1 atm), more preferably about 0 to about 100 Pa. Preferably, it is about 0 to about 10 Pa, more preferably about 0 to about 1 Pa, and even more preferably about 0.0 to about 0.1 Pa. This is because if the blood slipperiness-imparting agent has a high vapor pressure, it may be vaporized during storage, resulting in problems such as a decrease in the amount and odor when worn.
- the melting point of the blood slipperiness-imparting agent can be selected according to the climate, the length of wearing time, and the like. For example, in an area where the average temperature is about 10 ° C. or less, by adopting a blood slipperiness imparting agent having a melting point of about 10 ° C. or less, menstrual blood is excreted and then cooled by the ambient temperature. However, it is considered that the blood slipperiness-imparting agent is easy to function.
- the melting point of the blood slipperiness imparting agent is preferably higher in the range of about 45 ° C. or less. This is because the blood slipperiness-imparting agent is not easily biased even when worn for a long time, and is not easily affected by sweat, friction at the time of wearing.
- the skin contact surface of the top sheet is coated with a surfactant for the purpose of changing the surface tension of menstrual blood and the like and quickly absorbing menstrual blood.
- the top sheet coated with a surfactant has a high affinity with hydrophilic components (such as plasma) in menstrual blood, and tends to attract them and rather cause menstrual blood to remain on the top sheet.
- the blood slipperiness imparting agent has a low affinity for menstrual blood, and does not cause menstrual blood to remain on the top sheet, but quickly transfers it to the absorbent body.
- the blood slipperiness imparting agent is preferably the following (i) to (iii), (I) hydrocarbons, (Ii) from (ii-1) a hydrocarbon moiety and (ii-2) a carbonyl group (—CO—) and an oxy group (—O—) inserted between the CC single bonds of the hydrocarbon moiety.
- the hydrocarbon moiety A compound having one or a plurality of the same or different groups selected from the group consisting of a carboxyl group (—COOH) and a hydroxyl group (—OH), which replaces a hydrogen atom; As well as any combination thereof.
- hydrocarbon means a compound composed of carbon and hydrogen, and a chain hydrocarbon, for example, a paraffinic hydrocarbon (also referred to as an alkane, which does not include a double bond and a triple bond).
- a paraffinic hydrocarbon also referred to as an alkane, which does not include a double bond and a triple bond.
- Olefinic hydrocarbons including one double bond, also referred to as alkene
- acetylenic hydrocarbons including one triple bond, also referred to as alkyne
- hydrocarbons containing two or more bonds selected from the above and cyclic hydrocarbons such as aromatic hydrocarbons and alicyclic hydrocarbons.
- the hydrocarbon is preferably a chain hydrocarbon and an alicyclic hydrocarbon, more preferably a chain hydrocarbon, a paraffinic hydrocarbon, an olefinic hydrocarbon, and two double bonds. More preferred are hydrocarbons (not including triple bonds), and more preferred are paraffinic hydrocarbons.
- the chain hydrocarbon includes a straight chain hydrocarbon and a branched chain hydrocarbon.
- each oxy group (—O—) is not adjacent. Therefore, the compounds (ii) and (iii) do not include compounds having a continuous oxy group (so-called peroxides).
- At least one hydrogen atom in the hydrocarbon moiety is more hydroxyl group (—OH) than in the compound in which at least one hydrogen atom in the hydrocarbon moiety is substituted with a carboxyl group (—COOH).
- a carboxyl group —COOH
- IOB is preferred. This is because the carboxyl group binds to a metal or the like in menstrual blood, increases the water retention rate of the blood slipperiness imparting agent, and may exceed a predetermined range. This is the same from the viewpoint of IOB. As shown in Table 1, the carboxyl group binds to menstrual metals and the like, and the inorganic value increases significantly from 150 to 400 or more. Sometimes the value of IOB can be greater than about 0.60.
- the blood slipperiness imparting agent is more preferably the following (i ′) to (iii ′), (I ′) hydrocarbon, (Ii ′) (ii′-1) a hydrocarbon moiety and (ii′-2) a carbonyl bond (—CO—), an ester bond (—COO) inserted between the C—C single bonds of the hydrocarbon moiety.
- the blood slipperiness imparting agent is more preferably about 1.8 or less carbonyl bonds (—CO—) and 2 or less ester bonds (—COO—) per 10 carbon atoms in the hydrocarbon moiety. About 1.5 or less carbonate bonds (—OCOO—), about 6 or less ether bonds (—O—), about 0.8 or less carboxyl groups (—COOH), and / or hydroxyl groups (—OH) ) Or less.
- the blood slipperiness imparting agent is more preferably the following (A) to (F), (A) (A1) a compound having a chain hydrocarbon moiety and 2 to 4 hydroxyl groups replacing hydrogen atoms in the chain hydrocarbon moiety, (A2) a chain hydrocarbon moiety, and the chain An ester with a compound having one carboxyl group for substituting a hydrogen atom in the hydrocarbon moiety, (B) (B1) a compound having a chain hydrocarbon moiety and 2 to 4 hydroxyl groups replacing hydrogen atoms in the chain hydrocarbon moiety, (B2) a chain hydrocarbon moiety, and the chain An ether with a compound having one hydroxyl group replacing a hydrogen atom of the hydrocarbon moiety, (C) (C1) a carboxylic acid, a hydroxy acid, an alkoxy acid or an oxo acid containing a chain hydrocarbon moiety and 2 to 4 carboxyl groups replacing a hydrogen atom in the chain hydrocarbon moiety; C2) an ester of a compound having a chain
- (A) (A1) a compound having a chain hydrocarbon moiety and 2 to 4 hydroxyl groups substituting a hydrogen atom of the chain hydrocarbon moiety, (A2) a chain hydrocarbon moiety, Esters with compounds having one carboxyl group replacing a hydrogen atom of a chain hydrocarbon moiety]
- (A) (A1) a compound having a chain hydrocarbon moiety and 2 to 4 hydroxyl groups replacing hydrogen atoms in the chain hydrocarbon moiety;
- (A2) a chain hydrocarbon moiety;
- Ester with a compound having one carboxyl group that substitutes a hydrogen atom of the hydrocarbon-like moiety hereinafter sometimes referred to as “compound (A)” has the above-mentioned kinematic viscosity, water retention and weight average. All hydroxyl groups may not be esterified as long as they have a molecular weight.
- (A1) A compound having a chain hydrocarbon moiety and 2 to 4 hydroxyl groups replacing hydrogen atoms in the chain hydrocarbon moiety (hereinafter sometimes referred to as “compound (A1)”)
- a chain hydrocarbon tetraol such as an alkanetetraol, such as pentaerythritol
- a chain hydrocarbon triol such as an alkanetriol, such as glycerine
- a chain hydrocarbon diol such as an alkanediol, such as, for example, Glycol.
- Examples of the compound having a chain hydrocarbon moiety and one carboxyl group that replaces a hydrogen atom of the chain hydrocarbon moiety include, for example, one hydrogen atom on a hydrocarbon having one carboxyl group
- Examples include compounds substituted with (—COOH), for example, fatty acids.
- Examples of the compound (A) include (a 1 ) an ester of a chain hydrocarbon tetraol and at least one fatty acid, (a 2 ) an ester of a chain hydrocarbon triol and at least one fatty acid, and (a 3 ) Esters of chain hydrocarbon diols with at least one fatty acid.
- ester of (a 1 ) chain hydrocarbon tetraol and at least one fatty acid examples include the following formula (1): Tetraesters of pentaerythritol and fatty acids of the following formula (2): Triesters of pentaerythritol and fatty acids of the following formula (3): Diester of pentaerythritol and fatty acid of the following formula (4): And monoesters of pentaerythritol and fatty acids. (Wherein R 1 to R 4 are each a chain hydrocarbon)
- the ester of pentaerythritol and fatty acid has the kinematic viscosity, water retention rate and There is no particular limitation as long as the weight average molecular weight requirement is satisfied, but for example, a saturated fatty acid, for example, a C 2 to C 30 saturated fatty acid, for example, acetic acid (C 2 ) (C 2 represents the number of carbon atoms, R 1 C, R 2 C, R 3 C or R 4 C, the same applies hereinafter), propanoic acid (C 3 ), butanoic acid (C 4 ) and isomers thereof such as 2-methylpropane Acids (C 4 ), pentanoic acid (C 5 ) and isomers thereof such as 2-methylbutanoic acid (C 5 ), 2,2-dimethylpropanoic acid (C 5 ),
- the fatty acid may also be an unsaturated fatty acid.
- unsaturated fatty acid include C 3 to C 20 unsaturated fatty acids such as monounsaturated fatty acids such as crotonic acid (C 4 ), myristoleic acid (C 14 ), palmitoleic acid (C 16 ), Oleic acid (C 18 ), elaidic acid (C 18 ), vaccenic acid (C 18 ), gadoleic acid (C 20 ), eicosenoic acid (C 20 ), etc., diunsaturated fatty acids such as linoleic acid (C 18 ), Triunsaturated fatty acids such as eicosadienoic acid (C 20 ), such as linolenic acid, such as ⁇ -linolenic acid (C 18 ) and ⁇ -linolenic acid (C 18 ), pinolenic acid (C 18 ), eleostearic acid, For example, ⁇ -eleostearic acid (C
- the ester of pentaerythritol and fatty acid is an ester of pentaerythritol and a fatty acid derived from a saturated fatty acid, that is, an ester of pentaerythritol and a saturated fatty acid, considering the possibility of modification by oxidation or the like. preferable.
- the ester of pentaerythritol and fatty acid is preferably a diester, triester or tetraester, more preferably a triester or tetraester, from the viewpoint of reducing the value of water retention. More preferably, it is a tetraester.
- the total number of carbon atoms of the fatty acid constituting the tetraester of pentaerythritol and fatty acid that is, in the formula (1), the total number of carbon atoms of the R 1 C, R 2 C, R 3 C and R 4 C moieties is preferably about 15 (when the total number of carbon atoms is 15, the IOB is 0.60).
- tetraester of pentaerythritol and fatty acid for example, pentaerythritol, hexanoic acid (C 6 ), heptanoic acid (C 7 ), octanoic acid (C 8 ), for example, 2-ethylhexanoic acid (C 8 ), And tetraesters with nonanoic acid (C 9 ), decanoic acid (C 10 ) and / or dodecanoic acid (C 12 ).
- the total number of carbon atoms of the fatty acid constituting the triester of pentaerythritol and fatty acid that is, the above-mentioned In the formula (2), the total number of carbon atoms of the R 1 C, R 2 C and R 3 C moieties is preferably about 19 or more (when the total number of carbon atoms is 19, the IOB is 0.58). Clearly).
- the total number of carbon atoms of the fatty acid constituting the diester of pentaerythritol and fatty acid that is, the above formula ( In 3)
- the total number of carbon atoms in the R 1 C and R 2 C moieties is preferably about 22 or more (when the total number of carbon atoms is 22, IOB is 0.59).
- the carbon number of the R 1 C moiety is preferably about 25 or more (when the carbon number is 25, IOB is 0.60).
- the effects of double bonds, triple bonds, iso branches, and tert branches are not considered (the same applies hereinafter).
- esters of pentaerythritol and fatty acids examples include Unistar H-408BRS, H-2408BRS-22 (mixed product) and the like (manufactured by NOF Corporation).
- ester of (a 2 ) chain hydrocarbon triol and at least one fatty acid examples include the following formula (5): Triester of glycerin and fatty acid of the following formula (6): Diesters of glycerin and fatty acids and the following formula (7): (Wherein R 5 to R 7 are each a chain hydrocarbon) And monoesters of glycerin and fatty acids.
- the ester of glycerin and the fatty acid satisfies the requirements for the kinematic viscosity, water retention and weight average molecular weight.
- the ester of glycerin and fatty acid is preferably a diester or triester, and more preferably a triester, from the viewpoint of reducing the water retention value.
- the triester of glycerin and a fatty acid is also referred to as a triglyceride.
- triester of glycerin and octanoic acid C 8
- triester of glycerin and decanoic acid C 10
- glycerin and dodecanoic acid C 12
- triesters of glycerin and 2 or 3 fatty acids and mixtures thereof.
- Examples of the triesters of glycerin and two or more fatty acids include triesters of glycerin and octanoic acid (C 8 ) and decanoic acid (C 10 ), glycerin, octanoic acid (C 8 ), and decane.
- Examples thereof include triesters with (C 16 ) and octadecanoic acid (C 18 ).
- the triester of glycerin and fatty acid is the total number of carbon atoms of fatty acids constituting the triester of glycerin and fatty acid, that is, in formula (5), R 5
- the total carbon number of the C, R 6 C and R 7 C moieties is preferably about 40 or less.
- the triester of glycerin and fatty acid is the total number of carbon atoms of the fatty acid constituting the triester of glycerin and fatty acid, that is, the formula (5 ),
- the total number of carbon atoms in the R 5 C, R 6 C and R 7 C moieties is preferably about 12 or more (when the total number of carbon atoms is 12, IOB is 0.60).
- the triester of glycerin and a fatty acid is a so-called fat and is a component that can constitute a human body, and thus is preferable from the viewpoint of safety.
- triester of glycerin and fatty acid include tricoconut oil fatty acid glyceride, NA36, panacet 800, panacet 800B and panacet 810S, and tri-C2L oil fatty acid glyceride and tri-CL oil fatty acid glyceride (above, manufactured by NOF Corporation). ) And the like.
- the diester of glycerin and fatty acid is also called diglyceride.
- diester of glycerin and decanoic acid (C 10 ) diester of glycerin and dodecanoic acid (C 12 ), glycerin and hexadecanoic acid (C 16 ) Examples include diesters, diesters of glycerin and two fatty acids, and mixtures thereof.
- the total number of carbon atoms of the fatty acid constituting the diester of glycerin and fatty acid that is, in the formula (6) , R 5 C and R 6 C are preferably about 16 or more in total (when the total number of carbons is 16, IOB is 0.58).
- Monoesters of glycerin and fatty acids are also known as monoglycerides, for example, octadecanoic acid glycerin (C 18) monoesters, docosanoate glycerin (C 22) monoesters, and the like.
- the carbon number of the fatty acid constituting the monoester of glycerin and fatty acid that is, in the formula (7)
- the carbon number of the R 5 C moiety is preferably about 19 or more (when the carbon number is 19, the IOB is 0.59).
- ester of (a 3 ) chain hydrocarbon diol and at least one fatty acid examples include C 2 to C 6 chain hydrocarbon diols such as C 2 to C 6 glycols such as ethylene glycol, propylene glycol, butylene. Examples thereof include monoesters or diesters of glycol, pentylene glycol or hexylene glycol and a fatty acid.
- ester of the chain hydrocarbon diol and at least one fatty acid for example, the following formula (8): R 8 COOC k H 2k OCOR 9 (8) (Wherein k is an integer from 2 to 6 and R 8 and R 9 are each a chain hydrocarbon) A diester of a C 2 -C 6 glycol with a fatty acid and the following formula (9): R 8 COOC k H 2k OH (9) (Wherein k is an integer from 2 to 6 and R 8 is a chain hydrocarbon) And monoesters of C 2 -C 6 glycols and fatty acids.
- the fatty acid to be esterified (corresponding to R 8 COOH and R 9 COOH in formula (8) and formula (9)) is C 2 -C 6 glycol.
- an ester of a fatty acid are not particularly limited as long as the ester satisfies the above requirements of kinematic viscosity, water retention and weight average molecular weight.
- “(a 1 ) chain hydrocarbon tetraol and at least one fatty acid Fatty acids listed in "Ester with” that is, saturated fatty acids and unsaturated fatty acids, and saturated fatty acids are preferred in consideration of the possibility of modification by oxidation or the like.
- the carbon number of the R 8 C and R 9 C moieties Is preferably about 6 or more (when the total number of carbon atoms is 6, IOB is 0.60).
- the carbon number of the R 8 C moiety is about It is preferably 12 or more (when the number of carbon atoms is 12, IOB is 0.57).
- the ester of a C 2 ⁇ C 6 glycols and fatty acid in view of the potential for degradation by oxidation and the like, derived from saturated fatty acids, esters of C 2 ⁇ C 6 glycols and fatty acid, Nachi Suwa, C 2 An ester of ⁇ C 6 glycol and saturated fatty acid is preferred.
- an ester of glycol and fatty acid derived from glycol having a large carbon number for example, butylene glycol, pentylene, etc. It is preferably an ester of glycol and fatty acid derived from lenglycol or hexylene glycol.
- the ester of the C 2 -C 6 glycol and the fatty acid is preferably a diester from the viewpoint of reducing the water retention value. Examples of commercial products of the ester of C 2 -C 6 glycol and fatty acid include Compol BL and Compol BS (manufactured by NOF Corporation).
- compound (B1) As a compound having a chain hydrocarbon moiety and 2 to 4 hydroxyl groups substituting hydrogen atoms of the chain hydrocarbon moiety (hereinafter sometimes referred to as “compound (B1)”) And those listed as the compound (A1) in “Compound (A)”, for example, pentaerythritol, glycerin, and glycol.
- Examples of the compound (B2) having a chain hydrocarbon moiety and one hydroxyl group replacing the hydrogen atom of the chain hydrocarbon moiety include: , Compounds in which one hydrogen atom of a hydrocarbon is replaced by one hydroxyl group (—OH), for example, aliphatic monohydric alcohols, for example, saturated aliphatic monohydric alcohols and unsaturated aliphatic monohydric alcohols Is mentioned.
- saturated aliphatic monohydric alcohol examples include C 1 to C 20 saturated aliphatic monohydric alcohols such as methyl alcohol (C 1 ) (C 1 represents the number of carbon atoms, the same shall apply hereinafter), ethyl alcohol ( C 2 ), propyl alcohol (C 3 ) and isomers thereof such as isopropyl alcohol (C 3 ), butyl alcohol (C 4 ) and isomers thereof such as sec-butyl alcohol (C 4 ) and tert-butyl alcohol (C 4 ), pentyl alcohol (C 5 ), hexyl alcohol (C 6 ), heptyl alcohol (C 7 ), octyl alcohol (C 8 ) and isomers thereof such as 2-ethylhexyl alcohol (C 8 ), nonyl alcohol (C 9), decyl alcohol (C 10), dodecyl alcohol (C 12), tetradecyl alcohol (C 14), Hexadecyl alcohol (C 16), to
- Examples of the unsaturated aliphatic monohydric alcohol include those obtained by substituting one of the C—C single bonds of the saturated aliphatic monohydric alcohol with a C ⁇ C double bond, such as oleyl alcohol. It is commercially available from Shin Nippon Rika Co., Ltd. under the names of the Jamaica Coal series and the Angelo All series.
- Examples of the compound (B) include (b 1 ) ethers of chain hydrocarbon tetraol and at least one aliphatic monohydric alcohol, such as monoether, diether, triether and tetraether, preferably diether, triether.
- Ethers and tetraethers more preferably triethers and tetraethers, and even more preferably tetraethers, ethers of (b 2 ) chain hydrocarbon triols and at least one aliphatic monohydric alcohol, such as monoethers, diethers and Triethers, preferably diethers and triethers, and more preferably triethers, and (b 3 ) ethers of chain hydrocarbon diols with at least one aliphatic monohydric alcohol, such as monoethers and diethers, and preferably Diether It is below.
- Examples of the ether of the chain hydrocarbon tetraol and at least one aliphatic monohydric alcohol include, for example, the following formulas (10) to (13): (In the formula, R 10 to R 13 are each a chain hydrocarbon.) And tetraethers, triethers, diethers and monoethers of pentaerythritol and aliphatic monohydric alcohols.
- Examples of the ether of the chain hydrocarbon triol and at least one aliphatic monohydric alcohol include, for example, the following formulas (14) to (16): (Wherein R 14 to R 16 are each a chain hydrocarbon.) And triether, diether and monoether of glycerin and aliphatic monohydric alcohol.
- Examples of the ether of the chain hydrocarbon diol and at least one aliphatic monohydric alcohol include the following formula (17): R 17 OC n H 2n OR 18 (17) (Wherein n is an integer from 2 to 6 and R 17 and R 18 are each a chain hydrocarbon) A diether of a C 2 -C 6 glycol and an aliphatic monohydric alcohol, and the following formula (18): R 17 OC n H 2n OH (18) (Wherein n is an integer from 2 to 6 and R 17 is a chain hydrocarbon) And monoethers of C 2 -C 6 glycols and aliphatic monohydric alcohols.
- the tetraether of pentaerythritol and aliphatic monohydric alcohol described above is an aliphatic constituting the tetraether of pentaerythritol and aliphatic monohydric alcohol.
- the total number of carbon atoms of the monohydric alcohol, that is, in the above formula (10), the total number of carbon atoms of the R 10 , R 11 , R 12 and R 13 portions is preferably about 4 or more (of the above carbon number). If the sum is 4, the IOB is 0.44).
- the above-mentioned triether of pentaerythritol and aliphatic monohydric alcohol is an aliphatic constituting a triether of pentaerythritol and aliphatic monohydric alcohol.
- the total number of carbon atoms of the monohydric alcohol, that is, in the above formula (11), the total number of carbon atoms in the R 10 , R 11 and R 12 portions is preferably about 9 or more (the total number of carbon atoms is 9 In this case, the IOB is 0.57).
- the diether of pentaerythritol and aliphatic monohydric alcohol described above is an aliphatic monovalent constituting a diether of pentaerythritol and aliphatic monohydric alcohol.
- the total number of carbon atoms of the alcohol that is, the total number of carbon atoms in the R 10 and R 11 moieties in the formula (12) is preferably about 15 or more (when the total number of carbon atoms is 15, IOB becomes 0.60).
- the monoether of pentaerythritol and aliphatic monohydric alcohol described above is an aliphatic constituting a monoether of pentaerythritol and aliphatic monohydric alcohol.
- the carbon number of the monohydric alcohol, that is, the carbon number of the R 10 moiety is preferably about 22 or more (when the carbon number is 22, IOB is 0.59).
- the above-described triether of glycerin and aliphatic monohydric alcohol is an aliphatic constituting the triether of glycerin and aliphatic monohydric alcohol. It is preferable that the total number of carbon atoms of the monohydric alcohol, that is, the total number of carbon atoms in the R 14 , R 15 and R 16 moieties in the formula (14) is about 3 or more (the total number of carbon atoms is 3). In this case, IOB becomes 0.50).
- the diether of glycerin and aliphatic monohydric alcohol described above is an aliphatic monohydric alcohol constituting the diether of glycerin and aliphatic monohydric alcohol.
- the total number of carbon atoms that is, the total number of carbon atoms in the R 14 and R 15 moieties in the formula (15) is preferably about 9 or more (when the total number of carbon atoms is 9, the IOB is 0.1. 58).
- the monoether of glycerin and aliphatic monohydric alcohol described above is an aliphatic monovalent constituting a monoether of glycerin and aliphatic monohydric alcohol.
- the carbon number of the alcohol, that is, the carbon number of the R 14 portion is preferably about 16 or more (when the carbon number is 16, the IOB is 0.58).
- R 17 and R 18 moieties
- the total number of carbons is preferably about 2 or more (when the total number of carbons is 2, IOB is 0.33).
- the R 17 moieties The number of carbon atoms is preferably about 8 or more (when the number of carbon atoms is 8, IOB is 0.60).
- Compound (B) is produced, for example, by dehydrating condensation of compound (B1) and compound (B2) in the presence of an acid catalyst.
- C1 Carboxylic acids, hydroxy acids, alkoxy acids or oxo acids (hereinafter referred to as “compounds”) containing a chain hydrocarbon moiety and 2 to 4 carboxyl groups that replace the hydrogen atoms of the chain hydrocarbon moiety.
- C1) may be referred to as, for example, a chain hydrocarbon carboxylic acid having 2 to 4 carboxyl groups, such as a chain hydrocarbon dicarboxylic acid such as an alkanedicarboxylic acid such as ethanedioic acid.
- Examples include rubonic acids such as alkanetetracarboxylic acids such as butanetetraacid, pentanetetraacid, hexanetetraacid, heptanetetraacid, octanetetraacid, nonanetetraacid and decanetetra
- the compound (C1) includes a chain hydrocarbon hydroxy acid having 2 to 4 carboxyl groups, for example, a chain chain having 2 to 4 carboxyl groups such as malic acid, tartaric acid, citric acid, isocitric acid and the like. Hydrocarbon alkoxy acids such as O-acetylcitric acid and chain hydrocarbon oxoacids having 2 to 4 carboxyl groups are included.
- C2 Examples of the compound having a chain hydrocarbon moiety and one hydroxyl group substituting a hydrogen atom of the chain hydrocarbon moiety include those listed in the section of “Compound (B)”, for example, An aliphatic monohydric alcohol is mentioned.
- compound (D) a compound having any one bond selected from the group consisting of a carbonate bond (—OCOO—)
- compound (D) a compound having any one bond selected from the group consisting of a carbonate bond (—OCOO—)
- compound (D) aliphatic
- examples include ethers of monohydric alcohols and aliphatic monohydric alcohols, (d 2 ) dialkyl ketones, esters of (d 3 ) fatty acids and aliphatic monohydric alcohols, and (d 4 ) dialkyl carbonates.
- the ether As the aliphatic monohydric alcohol constituting the ether (corresponding to R 19 OH and R 20 OH in the formula (19)), the ether has the above-mentioned requirements for kinematic viscosity, water retention and weight average molecular weight. If satisfy
- dialkylketone As the dialkyl ketone, the following formula (20): R 21 COR 22 (20) (Wherein R 21 and R 22 are each an alkyl group) The compound which has is mentioned.
- the dialkyl ketone is commercially available and can be obtained by a known method, for example, by oxidizing a secondary alcohol with chromic acid or the like.
- ester of the fatty acid and the aliphatic monohydric alcohol include the following formula (21): R 23 COOR 24 (21) (Wherein R 23 and R 24 are each a chain hydrocarbon) The compound which has is mentioned.
- Examples of the fatty acid constituting the ester include, for example, the fatty acids listed in “(a 1 ) ester of chain hydrocarbon tetraol and fatty acid”, that is, Saturated fatty acids and unsaturated fatty acids are mentioned, and saturated fatty acids are preferred in consideration of the possibility of modification by oxidation or the like.
- Examples of the aliphatic monohydric alcohol constituting the ester include the aliphatic monohydric alcohols listed in the section “Compound (B)”.
- ester of the fatty acid and the aliphatic monohydric alcohol examples include, for example, an ester of dodecanoic acid (C 12 ) and dodecyl alcohol (C 12 ), tetradecanoic acid (C 14 ), and dodecyl alcohol (C 12 ).
- ester of the above fatty acids and aliphatic monohydric alcohols examples include Electol WE20 and Electol WE40 (manufactured by NOF Corporation).
- the dialkyl carbonate is synthesized by, for example, a reaction between phosgene and an alcohol, a reaction between a chlorinated formate and an alcohol or an alcoholate, and a reaction between silver carbonate and an alkyl iodide.
- (d 1 ) an ether of an aliphatic monohydric alcohol and an aliphatic monohydric alcohol, (d 2 ) a dialkyl ketone, (d 3 ) a fatty acid and an aliphatic monohydric alcohol And (d 4 ) dialkyl carbonates preferably have a weight average molecular weight of about 100 or more, and more preferably about 200 or more.
- dialkyl ketone when the total number of carbon atoms is about 8, for example, for 5-nonanone, the melting point is about ⁇ 50 ° C., and the vapor pressure is about 230 Pa at 20 ° C.
- (E) Polyoxy C 3 -C 6 alkylene glycol, or alkyl ester or alkyl ether thereof includes (e 1 ) polyoxy C 3 -C 6 alkylene glycol, (e 2 ) Esters of polyoxy C 3 -C 6 alkylene glycol and at least one fatty acid, (e 3 ) Ethers of polyoxy C 3 -C 6 alkylene glycol and at least one aliphatic monohydric alcohol. This will be described below.
- the polyoxy C 3 -C 6 alkylene glycol has the following formula (23): HO- (C m H 2m O) n -H (23) (Where m is an integer from 3 to 6) Is represented by
- ester of polyoxy C 3 -C 6 alkylene glycol and at least one fatty acid examples include the OH terminal of the polyoxy C 3 -C 6 alkylene glycol described in the section “(e 1 ) polyoxy C 3 -C 6 alkylene glycol”. In which one or both of them are esterified with a fatty acid, that is, monoesters and diesters.
- fatty acid to be esterified in the ester of polyoxy C 3 -C 6 alkylene glycol and at least one fatty acid are listed in “Ester of (a 1 ) chain hydrocarbon tetraol and at least one fatty acid”.
- Fatty acid that is, saturated fatty acid or unsaturated fatty acid, and saturated fatty acid is preferable in consideration of possibility of modification by oxidation or the like.
- Examples of the aliphatic monohydric alcohol to be etherified in the ether of polyoxy C 3 -C 6 alkylene glycol and at least one aliphatic monohydric alcohol include, for example, the aliphatic enumerated in the section of “Compound (B)”. A monohydric alcohol is mentioned.
- chain hydrocarbon examples include (f 1 ) chain alkanes such as straight chain alkanes and branched chain alkanes.
- the linear alkane has a carbon number of about 22 or less when the melting point is about 45 ° C. or less, and about 13 or less when the vapor pressure is about 0.01 Pa or less at 1 atm and 25 ° C. That's it.
- Branched-chain alkanes tend to have lower melting points at the same carbon number than straight-chain alkanes. Therefore, the branched chain alkane includes those having 22 or more carbon atoms even when the melting point is about 45 ° C. or lower.
- Pearl Ream 6 (NOF Corporation) can be mentioned.
- the buttocks have a blood slipperiness imparting agent-containing region including a blood slipperiness imparting agent.
- the heel has a blood slipperiness imparting agent-containing region consisting only of the blood slipperiness imparting agent.
- the blood slipperiness imparting agent comprising a blood slipperiness imparting agent-containing composition in which the heel portion includes the aforementioned blood slipperiness imparting agent and at least one other component. It has a containing region.
- the groove portion has a blood slipperiness imparting agent-containing region containing a blood slipperiness imparting agent.
- the groove portion has a blood slipperiness imparting agent-containing region composed only of the blood slipperiness imparting agent.
- the groove portion contains a blood slipperiness imparting agent comprising a blood slipperiness imparting agent-containing composition including the above-described blood slipperiness imparting agent and at least one other component. Has a region.
- the blood slipping agent-containing composition will be described.
- the composition for containing a blood slipperiness agent contains the above-described blood slipperiness imparting agent and at least one other component.
- the at least one other component is not particularly limited as long as it does not hinder the effects of the present disclosure, and examples thereof include those that are conventionally applied to absorbent articles, particularly top sheets in the art.
- Examples of the at least one other component include silicone oil, silicone, and silicone resin.
- Examples of the at least one other component include antioxidants such as BHT (2,6-di-t-butyl-p-cresol), BHA (butylated hydroxyanisole), and propyl gallate. It is done.
- Examples of the at least one other component include vitamins such as natural vitamins and synthetic vitamins.
- Examples of the vitamin include water-soluble vitamins such as vitamin B group, for example, vitamin B 1 , vitamin B 2 , vitamin B 3 , vitamin B 5 , vitamin B 6 , vitamin B 7 , vitamin B 9 , vitamin B 12 And vitamin C.
- Examples of the vitamin include fat-soluble vitamins such as vitamin A group, vitamin D group, vitamin E group, and vitamin K group. The vitamins also include their derivatives.
- Examples of the at least one other component include amino acids such as alanine, arginine, lysine, histidine, proline, hydroxyproline, and peptides.
- the at least one other component examples include zeolites such as natural zeolites such as fluorite, chabazite, pyroxenite, natrolite, zeolitite, and somosonite, and synthetic zeolite.
- zeolites such as natural zeolites such as fluorite, chabazite, pyroxenite, natrolite, zeolitite, and somosonite, and synthetic zeolite.
- examples of the at least one other component include cholesterol, hyaluronic acid, lecithin, and ceramide.
- Examples of the at least one other component include drugs such as skin astringents, anti-acne agents, anti-wrinkle agents, anti-cellulite agents, whitening agents, antibacterial agents, and antifungal agents.
- Examples of the skin astringent include oil-soluble skin astringents such as zinc oxide, aluminum sulfate, and tannic acid, such as oil-soluble polyphenols.
- Examples of the oil-soluble polyphenols include natural oil-soluble polyphenols such as, for example, buckwheat extract, hypericum extract, nettle extract, chamomile extract, burdock extract, salvia extract, linden extract, scallop extract, birch extract, cedar extract, sage extract, salvia extract. , Teuchigurumi extract, hibiscus extract, loquat leaf extract, bodaiju extract, hop extract, marronnier extract, yokuinin extract and the like.
- anti-acne agent examples include salicylic acid, benzoyl peroxide, resorcinol, sulfur, erythromycin, and zinc.
- anti-wrinkle agent examples include lactic acid, salicylic acid, salicylic acid derivatives, glycolic acid, phytic acid, lipoic acid, and lysophosphatide acid.
- anti-cellulite agent examples include xanthine compounds such as aminophylline, caffeine, theophylline, theobromine and the like.
- whitening agent examples include niacinamide, kojic acid, arbutin, glucosamine and derivatives, phytosterol derivatives, ascorbic acid and derivatives thereof, and mulberry extract and placenta extract.
- Examples of the at least one other component include an anti-inflammatory component, a pH adjuster, an antibacterial agent, a moisturizer, a fragrance, a pigment, a dye, a pigment, and a plant extract.
- examples of the anti-inflammatory component include naturally-occurring anti-inflammatory agents, such as buttons, ogon, hypericum, chamomile, licorice, momonoha, mugwort, perilla extract, synthetic anti-inflammatory agents, such as allantoin, dipotassium glycyrrhizinate, etc. It is done.
- Examples of the pH adjuster include those for keeping the skin weakly acidic, such as malic acid, succinic acid, citric acid, tartaric acid, and lactic acid.
- examples of the pigment include titanium oxide.
- the blood slipping agent-containing composition preferably comprises about 50 to about 99% by weight and about 1 to about 50% by weight, more preferably about 1% of the other components. 60 to about 99% and about 1 to about 40%, more preferably about 70 to about 99% and about 1 to about 30%, even more preferably about 80 to about 99% and about 1 to about 20% by weight, even more preferably from about 90 to 99% by weight and from about 1 to about 10% by weight, and even more preferably from about 95 to 99% by weight and from about 1 to about 5% by weight. This is from the viewpoint of the effect of the present disclosure.
- lubricity imparting agent containing composition contains surfactant in the quantity or less derived from the hydrophilic treatment of a top sheet or a second sheet. More specifically, the blood slipping agent-containing composition preferably contains a surfactant, preferably about 0.0 to about 1.0 g / m 2 , more preferably about 0.0 to about 0.8 g / m 2 . m 2 , more preferably from about 0.1 to about 0.5 g / m 2 , and even more preferably from about 0.1 to about 0.3 g / m 2 in the basis weight range. This is because as the amount of the surfactant increases, menstrual blood tends to remain on the top sheet. The surfactant does not have a water retention value. This is because there is no layer of material to be measured because it is miscible with water.
- the blood slipping agent-containing composition preferably contains water in an amount of about 0.0 to about 1.0 g / m 2 , more preferably about 0.0 to about 0.8 g / m 2 , and even more preferably about 0. 0.1 to about 0.5 g / m 2 , and even more preferably in the basis weight range of about 0.1 to about 0.3 g / m 2 . Since water reduces the absorption performance of an absorbent article, it is preferable that water is small.
- the blood slipping agent-containing composition like the blood slipping agent, preferably has a kinematic viscosity of about 0 to about 80 mm 2 / s at 40 ° C. as a composition, and about 1 to about 70 mm. More preferably, it has a kinematic viscosity of 2 / s, more preferably a kinematic viscosity of about 3 to about 60 mm 2 / s, even more preferably a kinematic viscosity of about 5 to about 50 mm 2 / s, Even more preferably, it has a kinematic viscosity of from about 7 to about 45 mm 2 / s.
- the kinematic viscosity of the blood slipping agent-containing composition exceeds about 80 mm 2 / s, the viscosity is high, and the blood slipping agent composition absorbs along with menstrual blood that has reached the skin contact surface of the top sheet. This is because it tends to be difficult to slide down inside the article.
- the other component preferably has a weight of less than about 1,000. Having an average molecular weight, and more preferably having a weight average molecular weight of less than about 900; This is because when the weight average molecular weight is about 1,000 or more, the blood slipperiness-imparting agent-containing composition itself is tacky and tends to give the wearer an uncomfortable feeling. Moreover, since the viscosity of the composition containing a blood slipperiness-imparting agent tends to increase as the weight average molecular weight increases, the viscosity of the blood slipperiness-enhancing agent composition is lowered to a viscosity suitable for application by heating. As a result, the blood slipping agent may have to be diluted with a solvent.
- the blood slipperiness imparting agent-containing composition has a water retention of about 0.01 to about 4.0% by mass and a water retention of about 0.02 to about 3.5% by mass as the composition. Preferably about 0.03 to about 3.0% by weight, more preferably about 0.04 to about 2.5% by weight, and more preferably More preferably, it has a water retention of from about 0.05 to about 2.0 weight percent.
- the affinity between the blood slipperiness-imparting agent composition and menstrual blood is reduced, and menstrual blood that has reached the skin contact surface of the top sheet is less likely to slide into the absorbent article.
- lubricity imparting agent containing composition contains a solid substance, it is preferable to remove them by filtration in the measurement of kinematic viscosity and a water retention.
- the blood slipperiness imparting agent or the blood slipperiness imparting agent-containing composition can be applied as a coating solution containing a volatile solvent, for example, an alcohol solvent, an ester solvent, an aromatic solvent, or the like, if desired.
- a volatile solvent for example, an alcohol solvent, an ester solvent, an aromatic solvent, or the like.
- the nonwoven fabrics of the present disclosure can be manufactured according to methods known in the art.
- the nonwoven fabric of this indication forms the nonwoven fabric which should provide a through-hole and should apply
- a perforation part (through-hole) is carried out to a buttocks Can be produced by forming a nonwoven fabric to which the blood slipperiness-imparting agent is to be applied, and then applying the blood slipperiness-imparting agent to the nonwoven fabric to which the blood slipperiness-imparting agent is to be applied.
- the nonwoven fabric 1 shown in FIGS. 1 to 4 before being provided with the perforated portion 4 ′ can be manufactured according to “first embodiment” of Patent Document 1.
- a nonwoven fabric when a nonwoven fabric is manufactured using a support member as shown in FIG. 3 of Patent Document 1, a nonwoven fabric having a plurality of ridges and a plurality of grooves, Can have a plurality of openings and a connecting portion that connects two adjacent flanges between two adjacent openings.
- the perforation method can be performed according to a method known in the art, but for example, it is preferable to perform the perforation method as shown in FIG.
- FIG. 7 is a diagram for explaining an example of a method for forming a perforated portion.
- the core wrap sheet 122 supplied from the core wrap roll 121 is conveyed by the belt conveyor 101 in the machine direction MD.
- the pulverized pulp and absorbent polymer 131 are supplied to the pattern drum 132 from a pulverized pulp and absorbent polymer supply device (not shown).
- a concave mold 133 for forming the pulverized pulp and the absorbent polymer is formed on the outer periphery of the pattern drum 132.
- the inside of the pattern drum 132 is sucked, and the pulverized pulp and the absorbent polymer 131 supplied to the pattern drum 132 are sucked into the concave mold 133 and compressed to form the absorbent core 102.
- the absorbent core 102 is laminated on the core wrap sheet 122.
- the nonwoven fabric sheet 112 supplied from the nonwoven fabric roll 111 is joined to the core wrap sheet 122 from the lower side of the core wrap sheet 122, and using the sailor 141, the outer side (machine direction MD and The absorbent body 103 is formed on the non-woven fabric sheet 112 by folding the portion protruding in the perpendicular direction (on the width direction) onto the absorbent core 102.
- the perforating apparatus 151 includes a protrusion roll 152 having a plurality of protrusions 152a in the shape of needles, cylinders, cones, etc. on the outer peripheral surface, and a plain roll 153 having a smooth surface on the outer periphery.
- the rotation direction of the protrusion roll 152 and the plain roll 153 is the same as the direction in which the nonwoven fabric sheet 112 and the absorber 103 move (machine direction MD).
- the nonwoven fabric sheet 112 and the absorbent body 103 can be passed to form a perforated portion in the nonwoven fabric sheet 112 and a hollow portion can be formed in the absorbent body 103.
- the perforated portion and the recessed portion of the absorbent body 103 are formed in the nonwoven fabric sheet 112 at positions that coincide with the thickness direction.
- lubricity imparting agent is formed.
- FIG. 7 although the example which punches both the nonwoven fabric sheet 112 and the absorber 103 simultaneously was shown, in another embodiment, only a nonwoven fabric is punched using the punching apparatus as shown in FIG. A perforated part is formed in the nonwoven fabric.
- the blood slipperiness imparting agent or blood slipperiness imparting agent-containing composition, or the coating method of the coating liquid containing the same is not particularly limited, and the blood slipperiness imparting agent or blood slipperiness imparting is necessary.
- the agent-containing composition or the coating liquid containing the same is heated, for example, using a coating apparatus such as a non-contact coater, for example, a spiral coater, curtain coater, spray coater, dip coater, contact-type coater, etc.
- the blood slipperiness imparting agent or the blood slipperiness imparting agent-containing composition, or a coating solution containing the same can be applied.
- a non-contact type coater is preferable from the viewpoint that the droplet-like or particulate modifier is uniformly dispersed throughout and the point of not damaging the material.
- the above-mentioned blood slipperiness-imparting agent or blood slipperiness-enhancing agent-containing composition, or a coating liquid containing the same when liquid at room temperature, is heated as it is, or heated to lower the viscosity, and is solid at room temperature can be heated to liquefy and applied from a control seam HMA (Hot Melt Adhesive) gun.
- a control seam HMA Hot Melt Adhesive
- the coating amount of the blood modification imparting agent or the blood slipperiness imparting agent-containing composition can be adjusted, for example, by increasing or decreasing the coating amount from the control seam HMA gun.
- a blood slipperiness imparting agent-containing region can be formed in the buttocks.
- a blood slipperiness imparting agent-containing region can be formed in the heel and groove. it can.
- the absorbent article including the nonwoven fabric of the present disclosure can be manufactured according to a method known in the art.
- an absorbent article can be manufactured by laminating a liquid-permeable back sheet, an absorbent body, and the above-described nonwoven fabric with an adhesive sandwiched therebetween, and then cutting into a shape of the absorbent article.
- the nonwoven fabric of the present disclosure can have a pressing portion formed by pressing the nonwoven fabric.
- lubricity imparting agent can slid down from a convex part to a recessed part with menstrual blood, and can subsequently make menstrual blood transfer to an absorber.
- liquid-permeable top sheet those usually used in the art can be employed without any particular limitation.
- a sheet-like material having a structure that allows liquid to permeate such as a film or a woven fabric.
- non-woven fabrics examples of the fibers constituting the woven fabric and the nonwoven fabric include natural fibers and chemical fibers.
- natural fibers include cellulose such as pulverized pulp and cotton.
- chemical fibers include rayon and fibrillar rayon. And regenerated cellulose, semi-synthetic cellulose such as acetate and triacetate, thermoplastic hydrophobic chemical fibers, and thermoplastic hydrophobic chemical fibers subjected to hydrophilic treatment.
- thermoplastic hydrophobic chemical fiber examples include single fibers such as polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET), and fibers made of a graft polymer of PE and PP.
- nonwoven fabric examples include air-through nonwoven fabric, spunbond nonwoven fabric, point bond nonwoven fabric, spunlace nonwoven fabric, needle punch nonwoven fabric, melt blown nonwoven fabric, and combinations thereof (for example, SMS).
- liquid-impermeable back sheet examples include films containing PE, PP, etc., resin films having air permeability, those obtained by bonding a resin film having air permeability to a nonwoven fabric such as spunbond or spunlace, and composite materials such as SMS.
- a layer nonwoven fabric etc. are mentioned.
- a low density polyethylene (LDPE) film having a basis weight of about 15 to about 30 g / m 2 is preferred.
- the absorbent article according to one of the embodiments of the present disclosure includes a second sheet between the liquid-permeable top sheet and the absorber.
- Examples of the second sheet include the same examples as the liquid-permeable top sheet.
- Constituent elements of the absorbent core include, for example, hydrophilic fibers such as cellulose such as pulverized pulp and cotton, regenerated cellulose such as rayon and fibril rayon, semi-synthetic cellulose such as acetate and triacetate, particulate polymer, and fibrous polymer. , Thermoplastic hydrophobic chemical fibers, hydrophobized thermoplastic hydrophobic chemical fibers, and combinations thereof.
- a superabsorbent polymer for example, a granular material such as sodium acrylate copolymer can be cited.
- the core wrap is not particularly limited as long as it is liquid permeable and has a barrier property that does not allow the polymer absorber to permeate, and examples thereof include woven fabric and nonwoven fabric.
- examples of the woven fabric and non-woven fabric include natural fibers, chemical fibers, and tissues.
- the absorbent body As a second example of the absorbent body, one formed from an absorbent sheet or a polymer sheet can be cited, and the thickness is preferably about 0.3 to about 5.0 mm.
- the absorbent sheet and polymer sheet can be used without particular limitation as long as they are usually used in absorbent articles such as sanitary napkins.
- the side sheet examples include the same examples as the liquid-permeable top sheet.
- the flap can be formed from a side sheet and a liquid-impermeable back sheet, and can optionally have a reinforcing sheet, such as paper, between them.
- the blood slipperiness imparting agent or the blood slipperiness imparting agent-containing composition preferably does not block the voids between the fibers of the nonwoven fabric, and the blood slipperiness imparting agent or the blood slipperiness imparting agent-containing composition is, for example, a nonwoven fabric.
- the surface of the fibers may be attached in the form of droplets or particles, or may cover the surface of the fibers.
- the blood slipperiness imparting agent or the blood slipperiness imparting agent-containing composition preferably has a large surface area in order to slip with absorbed menstrual blood, and imparts blood slipperiness that exists in the form of droplets or particles.
- the agent or blood slipping agent-containing composition preferably has a small particle size.
- An absorbent article according to another embodiment of the present disclosure has a second sheet containing a blood slipperiness imparting agent. Moreover, the absorbent article according to another embodiment of the present disclosure has an absorber including a blood slipperiness imparting agent.
- the nonwoven fabric to which the blood slipperiness-imparting agent or the blood slipperiness-imparting agent-containing composition is applied is preferably subjected to a hydrophilic treatment.
- a hydrophilic treatment include coating a hydrophilic agent on the fiber surface of the nonwoven fabric, mixing a hydrophilic agent with a synthetic resin that is a raw material of the nonwoven fabric, and the like.
- the non-woven fabric before applying the blood slipperiness-imparting agent or blood slipperiness-imparting agent-containing composition is hydrophilic, so that it is derived from the lipophilic region derived from the blood slipperiness imparting agent on the top sheet and the hydrophilic agent. This is because the hydrophilic region coexists sparsely, the blood slipperiness imparting agent or the blood slipperiness imparting agent-containing composition exhibits sliding performance, and it becomes easy to quickly transfer menstrual blood to the absorber. .
- the above-described blood slipperiness imparting agent or blood slipperiness imparting agent-containing composition can also act as a lubricant. Therefore, the blood slipperiness imparting agent or the blood slipperiness imparting agent-containing composition reduces friction between the fibers of the nonwoven fabric and improves the flexibility of the entire nonwoven fabric.
- Absorbent articles according to preferred embodiments of the present disclosure include those intended to absorb blood, such as sanitary napkins, panty liners, and the like.
- the nonwoven fabric of the present disclosure and the absorbent article containing the nonwoven fabric are different from the absorbent articles containing a known skin care composition, lotion composition, and the like, and components such as an emollient agent and a fixing agent are unnecessary.
- the nonwoven fabric according to one of the embodiments of the present disclosure and the absorbent article comprising the nonwoven fabric do not include an emollient and / or a fixing agent.
- Example 1 [Evaluation of rewetting rate and absorber transfer speed] A commercially available sanitary napkin having a shape as shown in FIG. 5 (no blood slipping agent was applied) was prepared.
- the sanitary napkin includes a top sheet formed from an air-through nonwoven fabric (composite fiber made of polyester and polyethylene terephthalate, basis weight: 35 g / m 2 ) treated with a hydrophilic agent, and an air-through nonwoven fabric (composite made of polyester and polyethylene terephthalate).
- Second sheet formed from fibers, basis weight: 30 g / m 2 ), pulp (basis weight: 150 to 450 g / m 2 , more in the center), acrylic superabsorbent polymer (basis weight: 15 g / m 2 ) And an absorbent body containing a tissue as a core wrap, a side sheet treated with a water repellent, and a back sheet made of a polyethylene film.
- Tri-C2L oil fatty acid glyceride manufactured by NOF Corporation C 8 fatty acid: C 10 fatty acid: C 12 fatty acid containing approximately 37: 7: 56 weight ratio, glycerol and fatty acid triester, Weight average molecular weight: about 570
- fatty acids manufactured by NOF Corporation C 8 fatty to C 10 are contained in approximately 85:15 weight ratio of triesters of glycerol with fatty acids, the weight average molecular weight: about 480 ⁇ Panasate 800, manufactured by NOF Corporation All fatty acids are octanoic acid (C 8 ), triester of glycerin and fatty acid, weight average molecular weight: about 470
- Panaceate 800B manufactured by NOF Corporation All fatty acids are 2-ethylhexanoic acid (C 8 ), triester of glycerin and fatty acid, weight average molecular weight: about 470 ⁇ NA36, manufactured by NOF Corporation C 16 fatty acid: fatty acid C 18: (including both saturated and unsaturated fatty acids) fatty acids to C 20 is approximately 5: contained in a weight ratio of 3: 92 Triester of glycerin and fatty acid, weight average molecular weight: about 880
- C 8 fatty C 10: fatty acid
- C 12 fatty acid
- C 14 (including both saturated and unsaturated fatty acids)
- C 16 is approximately 4 : Triester of glycerin and fatty acid, contained in a weight ratio of 8: 60: 25: 3, weight average molecular weight: 670 -Caprylic acid diglyceride, manufactured by NOF Corporation
- Fatty acid is octanoic acid, diester of glycerin and fatty acid, weight average molecular weight: 340
- [Other materials] -NA50 manufactured by NOF Corporation Hydrogen added to NA36 to reduce the ratio of double bonds derived from the unsaturated fatty acid as a raw material Triester of glycerin and fatty acid, weight average molecular weight: about 880
- PEG 1500 manufactured by NOF Corporation, polyethylene glycol, weight average molecular weight: about 1,500 to about 1,600 -Wilbright cp9, manufactured by NOF Co., Ltd.
- Nonionic S-6 polyoxyethylene monostearate manufactured by NOF Corporation, about 7 repeating units, weight average molecular weight: about 880 ⁇ Unilube 5TP-300KB Polyoxyethylene polyoxypropylene pentaerythritol ether produced by adding 5 mol of ethylene oxide and 65 mol of propylene oxide to 1 mol of pentaerythritol, weight average molecular weight: 4,130
- the above-mentioned blood slipperiness imparting agent was applied to almost the entire skin contact surface of the top sheet of the sanitary napkin.
- Each blood slipperiness agent is heated as it is when the blood slipperiness agent is liquid at room temperature, and when the blood slipperiness agent is solid at room temperature, it is heated to a temperature of melting point + 20 ° C., then
- Each blood slipperiness imparting agent was atomized using a control seam HMA gun and applied to the skin contact surface of the top sheet so that the basis weight was approximately 5 g / m 2 .
- FIG. 8 is an electron micrograph of the skin contact surface of the top sheet in a sanitary napkin (No. 1-5) in which the top sheet contains tri-C2L oil fatty acid glycerides. As is clear from FIG. 6, the tri-C2L oil fatty acid glyceride is in the form of fine particles and is present on the surface of the fiber.
- absorption body transfer rate which is the time for blood to transfer from the top sheet to the absorber, was measured after the second drop of blood.
- absorption body transfer speed means the time from when blood is introduced into the top sheet until the redness of blood is not seen on the surface and inside of the top sheet.
- the whiteness of the skin contact surface of the top sheet (TS) after the test of the absorber transition speed was visually evaluated according to the following criteria.
- tackiness of the skin contact surface of the top sheet was measured at 35 ° C. according to the following criteria. ⁇ : No tackiness ⁇ : Some tackiness is present ⁇ : There is tackiness The results are shown in Table 2 below.
- the rewet rate was 22.7% and the absorber transfer rate was more than 60 seconds, but the triesters of glycerin and fatty acid were both rewet rates. Is 7.0% or less, and the absorber transfer speed is 8 seconds or less, which indicates that the absorption performance is greatly improved.
- the blood slipperiness imparting agent has a high absorbent transition speed
- the menstrual blood that reaches the buttocks diffuses in the longitudinal direction in the nonwoven fabric of the present disclosure because the buttocks have the blood slipperiness imparting agent-containing region. This suggests that it quickly slides into the absorbent body.
- Example 2 [Remaining ratio of menstrual blood surface on top sheet having groove structure] The surface residual rate of menstrual blood in the top sheet having a ridge groove structure was evaluated.
- Top sheet formed from air-through nonwoven fabric (composite fiber made of polyester and polyethylene terephthalate, basis weight: 35 g / m 2 ) treated with a hydrophilic agent, and air-through nonwoven fabric (composite fiber made of polyester and polyethylene terephthalate, basis weight: 30 g) / M 2 ), a pulp (basis weight: 150 to 450 g / m 2 , more in the center), an acrylic superabsorbent polymer (basis weight: 15 g / m 2 ), and a tissue as a core wrap.
- An absorbent body, a side sheet treated with a water repellent, and a back sheet made of a polyethylene film were prepared.
- the top sheet is a top sheet having a ridge groove structure manufactured according to the method described in Japanese Patent Application Laid-Open No. 2008-2034.
- the ridge portion has a thickness of about 1.5 mm and the groove portion has a thickness of about 0.
- the pitch of the ridge groove structure (the width of the ridge portion + the width of the groove portion) was about 4 mm, and a through hole (opening portion) having an opening ratio of about 15% was formed in the groove portion.
- Unistar H-408BRS (manufactured by NOF Corporation, tetraester of pentaerythritol and fatty acid) is selected as a blood slipperiness-imparting agent, and the skin contact surface ( ⁇ ⁇ ⁇ ) of the top sheet from a control seam HMA gun at room temperature.
- the groove surface was applied at a basis weight of 5.0 g / m 2 .
- H-408BRS was in the form of fine particles and adhered to the fiber surface.
- the back sheet, the absorbent body, the second sheet, and the top sheet were sequentially laminated with the groove surface facing up, whereby a sanitary napkin no. 2-1.
- the blood slipperiness-imparting agent was changed from Unistar H-408BRS to that shown in Table 3 below. 2-2 to No. 2-40 was produced.
- the blood slipperiness-imparting agent is liquid at room temperature, and when the blood slipperiness-imparting agent is solid at room temperature, it is heated to a temperature of melting point + 20 ° C., and then the control seam HMA gun
- the blood slipperiness-imparting agent was atomized and applied to the skin contact surface of the top sheet so that the basis weight was approximately 5 g / m 2 .
- lubricity imparting agent was apply
- Mass of top sheet After measuring W 2 (g) (mass of top sheet before test), an acrylic plate having a hole in the center of the absorbent article in the longitudinal direction and width direction and on the top sheet ( Place 200mm x 100mm, 125g, 40mm x 10mm hole in the center, and from the hole, 37 ⁇ 1 ° C equine EDTA blood (ethylenediaminetetraacetic acid (hereinafter referred to as equine blood to prevent coagulation) 4.0 g) was added dropwise with a pipette.
- W 2 (g) mass of top sheet before test
- Sanitary napkin No. which does not have a blood slipperiness imparting agent.
- the surface residual rate was 7.5% by mass, but the kinematic viscosity and water retention rate were within the predetermined ranges. 2-1.
- the surface residual rate was 2.5% by mass or less.
- Example 3 [Viscosity of blood containing blood slipping agent] The viscosity of blood containing a blood slipping agent was measured using Rheometric Expansion System ARES (Rheometric Scientific, Inc). 2% by mass of panacet 810s was added to equine defibrinated blood, lightly stirred to form a sample, the sample was placed on a parallel plate with a diameter of 50 mm, the gap was 100 ⁇ m, and the viscosity was measured at 37 ⁇ 0.5 ° C. . Because of the parallel plate, the sample did not have a uniform shear rate, but the average shear rate displayed on the instrument was 10 s ⁇ 1 .
- the viscosity of equine defibrinated blood containing 2% by mass of panacet 810s was 5.9 mPa ⁇ s, while the viscosity of equine defibrinated blood not containing a blood slipperiness agent was 50.4 mPa ⁇ s. Therefore, it can be seen that equine defibrinated blood containing 2% by mass of panacet 810s decreases the viscosity by about 90% compared to the case where no blood slipperiness-imparting agent is contained.
- blood contains components such as blood cells and has thixotropic properties, but the blood slipperiness imparting agent of the present disclosure has an action of lowering the viscosity of blood such as menstrual blood in a low viscosity region. It is thought to have. By reducing the viscosity of blood, it is considered that absorbed menstrual blood is easily transferred from the top sheet to the absorber.
- Example 4 [Micrograph of blood containing blood slipping agent] A healthy volunteer's menstrual blood was collected on a food protective wrap film, and a portion of the panacet 810s dispersed in 10 times the mass of phosphate buffered saline was used, and the concentration of panacet 810s was 1% by mass. It added so that it might become. Menstrual blood was appropriately applied to a slide glass, covered with a cover glass, and the state of red blood cells was observed with an optical microscope. A photomicrograph of menstrual blood containing no blood slipping agent is shown in FIG. 9 (a), and a photomicrograph of menstrual blood containing panacet 810s is shown in FIG. 9 (b).
- red blood cells form aggregates such as remuneration, but in menstrual blood that includes panacet 810s, red blood cells are each stably dispersed. I understand that. Therefore, it is suggested that the blood slipperiness imparting agent also has a function of stabilizing red blood cells in blood.
- Example 5 [Surface tension of blood containing blood slipperiness agent]
- the surface tension of blood containing a blood slipperiness imparting agent was measured by a pendant drop method using a contact angle meter Drop Master 500 manufactured by Kyowa Interface Science Co., Ltd.
- the surface tension was measured after adding a predetermined amount of blood slipperiness-imparting agent to sheep defibrinated blood and shaking sufficiently. Although the measurement is automatically performed by the instrument, the surface tension ⁇ is obtained by the following equation (see FIG. 10).
- the density ⁇ is defined in 5. of “Density Test Method and Density / Mass / Capacity Conversion Table” of JIS K 2249-1995. Based on the vibration density test method, the temperature was measured as shown in Table 4 below. For measurement, DA-505 of Kyoto Electronics Industry Co., Ltd. was used. The results are shown in Table 4 below.
- the blood slipperiness-imparting agent also has an action of lowering the surface tension of blood.
- the surface tension of the blood By reducing the surface tension of the blood, it is considered that the absorbed blood is not quickly held between the fibers of the top sheet, but is quickly transferred to the absorber.
- the present disclosure relates to the following (J1) to (J10).
- J1 A non-woven fabric having a longitudinal direction and a transverse direction for a top sheet of an absorbent article, The nonwoven fabric has a plurality of ridges and a plurality of grooves that extend in the longitudinal direction and are alternately arranged in the lateral direction, The plurality of flange portions and the plurality of groove portions each have a plurality of through holes, Blood slipperiness wherein the buttocks have a kinematic viscosity of 0.01 to 80 mm 2 / s at 40 ° C., a water retention of 0.01 to 4.0% by mass, and a weight average molecular weight of less than 1,000. Having a blood slipperiness imparting agent-containing region containing an imparting agent, The said nonwoven fabric characterized by the above-mentioned.
- the groove portion has a plurality of openings formed by reducing the fibers of the nonwoven fabric of the groove portion as the through hole, and two adjacent flange portions are connected between the two adjacent openings.
- the blood slipperiness-imparting agent comprises the following (i) to (iii), (I) hydrocarbons, (Ii) from (ii-1) a hydrocarbon moiety and (ii-2) a carbonyl group (—CO—) and an oxy group (—O—) inserted between the CC single bonds of the hydrocarbon moiety.
- —COOH carboxyl group
- —OH hydroxyl group
- the blood slipperiness-imparting agent comprises the following (i ′) to (iii ′), (I ′) hydrocarbon, (Iii ′) (ii-1) a hydrocarbon moiety and (ii′-2) a carbonyl bond (—CO—), an ester bond (—COO— inserted between the CC single bonds of the hydrocarbon moiety.
- the compound of (ii ′) or (iii ′) when two or more identical or different bonds are inserted, each bond is not adjacent, The nonwoven fabric according to any one of J1 to J8.
- the above-mentioned blood slipperiness-imparting agent comprises the following (A) to (F), (A) (A1) a compound having a chain hydrocarbon moiety and 2 to 4 hydroxyl groups replacing hydrogen atoms in the chain hydrocarbon moiety, (A2) a chain hydrocarbon moiety, and the chain An ester with a compound having one carboxyl group for substituting a hydrogen atom in the hydrocarbon moiety, (B) (B1) a compound having a chain hydrocarbon moiety and 2 to 4 hydroxyl groups replacing hydrogen atoms in the chain hydrocarbon moiety, (B2) a chain hydrocarbon moiety, and the chain An ether with a compound having one hydroxyl group replacing a hydrogen atom of the hydrocarbon moiety, (C) (C1) a carboxylic acid, a hydroxy acid, an alkoxy acid or an oxo acid containing a chain hydrocarbon moiety and 2 to 4 carboxyl groups replacing a hydrogen atom in the chain hydrocarbon moiety; C2) an ester
- the blood lubricity-imparting agent comprises (a 1 ) an ester of a chain hydrocarbon tetraol and at least one fatty acid, (a 2 ) an ester of a chain hydrocarbon triol and at least one fatty acid, (a 3 ) chain Ester of linear hydrocarbon diol and at least one fatty acid, (b 1 ) ether of chain hydrocarbon tetraol and at least one aliphatic monohydric alcohol, (b 2 ) chain hydrocarbon triol and at least one fat Ethers with aliphatic monohydric alcohols, (b 3 ) ethers of chain hydrocarbon diols with at least one aliphatic monohydric alcohol, (c 1 ) chain hydrocarbon tetracarboxylic acids having four carboxyl groups, hydroxy acid, alkoxy acid or an oxo acid, at least one ester of an aliphatic monohydric alcohol, (c 2) a chain hydrocarbon bets with 3 carboxyl groups Carboxy
- J14 The absorbent article according to J13, wherein the longitudinal direction is parallel to the longitudinal direction of the absorbent article.
- J15 The absorbent article according to any one of J1 to J14, which is a sanitary napkin or a panty liner.
Abstract
Description
例えば、特許文献2には、ポリプロピレングリコール材料を含むローション組成物を、トップシートの内表面(着衣側の面)、バックシートの内表面(身体側の面)、トップシートの内表面及びバックシートの内表面の間の基材等に配置した吸収性物品が開示されている。
また、特許文献3には、ポリプロピレングリコール材料を含むローション組成物を、トップシートの外表面(身体側の面)に適用した吸収性物品が開示されている。
従って、本開示は、経血を吸収した後にべたつきにくく、サラサラしており、そして吸収した経血が不織布上で拡散しにくい、吸収性物品のトップシート用の不織布を提供することを目的とする。
[定義]
本明細書において用いられる用語のうち、その一部を定義する。
・「畝部」及び「溝部」
本明細書において、「畝部」は、概ね縦方向に延びる、他の領域よりも高い部分を意味し、「溝部」は、概ね縦方向に延びる、他の領域よりも低い部分を意味し、そして「畝部」及び「溝部」は、横方向に交互に配置されている。
本明細書では、便宜上、「畝部」及び「溝部」を、その坪量により区別する。
畝部は、不織布全体の平均坪量よりも高い坪量を有する部分であり、そして溝部は、不織布全体の平均坪量よりも低い坪量を有する部分である。
本明細書において、「縦方向に配向する繊維」は、縦方向に対して、-45°超且つ+45°未満の範囲に配向している繊維を意味する。なお、本明細書では、縦方向に配向する繊維を、縦配向繊維と略称する場合がある。
本明細書において、「横方向に配向する繊維」は、上記縦方向と直交する横方向に対して、-45°超且つ+45°未満の範囲に配向している繊維を意味する。なお、本明細書では、横方向に配向する繊維を、横配向繊維と略称する場合がある。
なお、縦方向に対して-45°又は+45°に配向している繊維(すなわち、横方向に対して、-45°又は+45°に配向している繊維)は、縦配向繊維及び横配向繊維のいずれにも含まれない。
本明細書において、不織布に関する「貫通孔」は、不織布のある面(例えば、トップシートにおける肌当接面)から、その反対側の面(例えば、トップシートにおける着衣側面)まで貫通している孔を意味する。不織布のある面(例えば、トップシートにおける肌当接面)に到達した体液、例えば、経血は、当該貫通孔を通ってその反対側の面(例えば、トップシートにおける着衣側面)に移行することができる。
本明細書において、トップシートに関する「排泄口当接域」は、トップシートの中で、着用者の排泄口(小陰唇等)に当接する領域を意味する。上記排泄口当接域は、吸収性物品のサイズ等によってもその位置が異なるが、サイドフラップを有する吸収性物品の場合には、一般的には、吸収性物品の幅方向の中心を通る長手方向線と、両ウィング部の長手方向中心を通る幅方向線との交点とを囲むように連続的又は非連続的に配置されているエンボスにより画定される領域の内側が排泄口当接域である。また、サイドフラップを有しない吸収性物品の場合には、一般的には、吸収性物品の幅方向中心部且つ長手方向中心部を囲むように連続的又は非連続的に配置されているエンボスにより画定されるが排泄口当接域である。
なお、「吸収性物品のトップシート用の不織布」を、以下、単に「不織布」と称する場合がある。
図1は、本開示の実施形態の1つに従う不織布の正面図であり、そして図2は、図1のX部分の斜視図である。図1及び図2に示される不織布1は、縦方向Lと、横方向Cとを有する。図1及び図2に示される不織布1は、縦方向Lに延び且つ横方向Cに交互に配置されている複数の畝部2及び複数の溝部3を有し、そして畝部2と、溝部3とが、それぞれ、複数の貫通孔4を有する。
なお、血液滑性付与剤については、後述する。
(1)デジタルマイクロスコープを準備する。デジタルマイクロスコープとしては、例えば、株式会社キーエンス製のデジタルマイクロスコープVHX-100が挙げられる。
(2)測定すべきサンプルを、縦方向及び横方向が明確となるように観察台上にセットする。
(4)撮影深度(奥行き)を設定し、サンプルの3D画像をPC画面上に表示する。
(5)撮影した3D画像を、2D画像に変換する。
(6)測定範囲において、縦方向及び横方向に、それらを等分する平行線を、複数本、画面上に引く。
(8)所定の範囲内における繊維の全本数から、縦配向繊維の含有率と、横配向繊維の含有率とを算出する。
(1)測定すべき範囲(畝部、溝部又は不織布)にマークを付け、その面積:SAα(m2)を測定する。
なお、誤差を少なくするために、サンプルの総面積が5cm2を超えるように、マーキングする。
(3)測定すべき範囲の坪量BSα(g/m2)を、次の式:
BSα(g/m2)=TM(g)/SAα(m2)
により求める。
(1)不織布の測定すべき範囲を、鋭利な刃物、例えば、カッターの替え刃を用いて、その厚さを変化させないように切り出して、サンプルを得る。
(2)サンプルの面積:SAβ(m2)及び質量:SM0(g)を測定する。
(3)サンプルを、血液滑性付与剤を可溶な溶媒、例えば、エタノール、アセトン等の中で、少なくとも3分間攪拌し、血液滑性付与剤を溶媒中に溶解させる。
(5)ろ紙及びサンプルの質量を測定し、そこからろ紙の質量を減ずることにより、乾燥後のサンプルの質量:SM1(g)を算出する。
(6)血液滑性付与剤の坪量BSβ(g/m2)を、次の式:
BSβ(g/m2)=[SM0(g)-SM1(g)]/SAβ(m2)
により算出する。
なお、誤差を少なくするために、サンプルの総面積が100cm2を超えるように、複数の吸収性物品から複数のサンプルを採取し、複数回実験を繰り返し、それらの平均値を採用する。
(1)不織布に到達した経血の移行の速さ(トップシートの肌当接面から、トップシートの着衣側面への移行)と、
(2)畝部の嵩高さによる柔軟性の高さと、
を維持しつつ、さらに、
(3)吸収性能のさらなる向上、
具体的には、
(3a)畝部への経血の残存しにくさ
(畝部が、貫通孔を有するため)、
(3b)畝部の貫通孔の、経血の一時的な保持空間としての機能
(3c)畝部に到達した経血を、畝部の傾斜に沿って貫通孔に誘導できること
(畝部に貫通孔、特に穿孔部を形成することにより、貫通孔の周辺の畝部の厚さが薄くなり、畝部に傾斜が生じるため)
並びに
(4)蒸れにくさ
(畝部と肌との接触面積を小さくするため)
が得られる。
なお、本明細書では、貫通孔の個数に関する不織布の面積は、不織布の厚さ方向からの投影面積を意味し、畝部及び溝部を考慮した不織布の表面積とは異なる。
なお、畝部及び溝部の高さは、レーザ変位計により測定される。上記レーザ変位系としては、例えば、キーエンス株式会社製 高精度2次元レーザ変位計 LJ-Gシリーズ(型式:LJ-G030)が挙げられる。
また、溝部が血液滑性付与剤含有領域を有する、本開示のいくつかの実施形態に従う不織布では、畝部と、所望による溝部とが、それぞれの血液滑性付与剤含有領域において、異なる血液滑性付与剤、又は異なる血液滑性付与剤の組み合わせを含む。
本開示の不織布において、畝部が、40℃における約0.01~約80mm2/sの動粘度と、約0.05~約4.0質量%の抱水率と、約1,000未満の重量平均分子量とを有する血液滑性付与剤を含む血液滑性付与剤含有領域を有する。
上記動粘度は、a)血液滑性付与剤の分子量が大きくなるほど、b)極性基、例えば、カルボニル結合(-CO-)、エーテル結合(-O-)、カルボキシル基(-COOH)、ヒドロキシル基(-OH)等の比率が高いほど、そしてc)IOBが大きくなるほど、高くなる傾向がある。
なお、本明細書では、40℃における動粘度を、単に「動粘度」と称する場合がある。
(1)40℃の恒温室に、20mLの試験管、ゴム栓、測定すべき物質及び脱イオン水を一昼夜静置する。
(2)上記恒温室で、試験管に、測定すべき物質5.0gと、脱イオン水5.0gを投入する。
(3)上記恒温室で、試験管の口をゴム栓にて栓し、試験管を1回転させ、5分間静置する。
(5)上記シャーレを、オーブン内で、105℃で3時間加熱し、水分を蒸発させ、シャーレごと、質量:W1(g)を測定する。
(6)抱水率を、以下の式に従って算出する。
抱水率(質量%)=100×[W0(g)-W1(g)]/3.0(g)
測定は3回実施し、平均値を採用する。
一方、上記抱水率が高くなると、界面活性剤と同様に、経血との親和性が非常に高くなり、トップシートの肌当接面に、吸収された経血が残存し、トップシートの肌当接面が赤く着色しやすくなる傾向がある。
図5は、本開示の不織布を含む吸収性物品、より具体的には生理用ナプキンの正面図である。図5は、トップシート12の肌当接面側から観察した図である。図5に示される吸収性物品11は、液透過性のトップシート12と、吸収体13と、液不透過性のバックシート(図示せず)とを有する。図5に示される吸収性物品11はまた、一対のサイドフラップ14、サイドシート15、及びエンボス16を有する。
なお、図5に示される吸収性物品11は、向かって左側が、前方である。
また、図6では、血液滑性付与剤による経血の吸収体への移行を模式的に説明したが、血液滑性付与剤含有組成物の場合も、同様に機能する。
Mw=ΣNiMi 2/ΣNiMi
により求められるMwを意味する。
GPCの測定条件としては、例えば、以下が挙げられる。
機種:(株)日立ハイテクノロジーズ製 高速液体クロマトグラム Lachrom Elite
カラム:昭和電工(株)製 SHODEX KF-801、KF-803及びKF-804
溶離液:THF
流量 :1.0mL/分
打込み量:100μL
検出:RI(示差屈折計)
なお、本明細書の実施例に記載される重量平均分子量は、上記条件により測定したものである。
IOB(Inorganic Organic Balance)は、親水性及び親油性のバランスを示す指標であり、本明細書では、小田らによる次式:
IOB=無機性値/有機性値
により算出される値を意味する。
藤田氏による、主要な基の有機性値及び無機性値を、下記表1にまとめる。
(i)炭化水素、
(ii) (ii-1)炭化水素部分と、(ii-2)上記炭化水素部分のC-C単結合間に挿入された、カルボニル基(-CO-)及びオキシ基(-O-)から成る群から選択される、一又は複数の、同一又は異なる基とを有する化合物、及び
(iii) (iii-1)炭化水素部分と、(iii-2)上記炭化水素部分のC-C単結合間に挿入された、カルボニル基(-CO-)及びオキシ基(-O-)から成る群から選択される、一又は複数の、同一又は異なる基と、(iii-3)上記炭化水素部分の水素原子を置換する、カルボキシル基(-COOH)及びヒドロキシル基(-OH)から成る群から選択される、一又は複数の、同一又は異なる基とを有する化合物、
並びにそれらの任意の組み合わせから成る群から選択される。
上記鎖状炭化水素には、直鎖状炭化水素及び分岐鎖状炭化水素が含まれる。
(i’)炭化水素、
(ii’) (ii’-1)炭化水素部分と、(ii’-2)上記炭化水素部分のC-C単結合間に挿入された、カルボニル結合(-CO-)、エステル結合(-COO-)、カーボネート結合(-OCOO-)、及びエーテル結合(-O-)から成る群から選択される、一又は複数の、同一又は異なる結合とを有する化合物、及び
(iii’) (iii’-1)炭化水素部分と、(iii’-2)上記炭化水素部分のC-C単結合間に挿入された、カルボニル結合(-CO-)、エステル結合(-COO-)、カーボネート結合(-OCOO-)、及びエーテル結合(-O-)から成る群から選択される、一又は複数の、同一又は異なる結合と、(iii’-3)上記炭化水素部分の水素原子を置換する、カルボキシル基(-COOH)及びヒドロキシル基(-OH)から成る群から選択される、一又は複数の、同一又は異なる基とを有する化合物、
並びにそれらの任意の組み合わせから成る群から選択される。
(A) (A1)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する2~4個のヒドロキシル基とを有する化合物と、(A2)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する1個のカルボキシル基とを有する化合物とのエステル、
(B) (B1)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する2~4個のヒドロキシル基とを有する化合物と、(B2)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する1個のヒドロキシル基とを有する化合物とのエーテル、
(C) (C1)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する、2~4個のカルボキシル基とを含むカルボン酸、ヒドロキシ酸、アルコキシ酸又はオキソ酸と、(C2)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する1個のヒドロキシル基とを有する化合物とのエステル、
(D)鎖状炭化水素部分と、上記鎖状炭化水素部分のC-C単結合間に挿入された、エーテル結合(-O-)、カルボニル結合(-CO-)、エステル結合(-COO-)、及びカーボネート結合(-OCOO-)から成る群から選択されるいずれか1つの結合とを有する化合物、
(E)ポリオキシC3~C6アルキレングリコール、又はそのアルキルエステル若しくはアルキルエーテル、及び
(F)鎖状炭化水素、
並びにそれらの任意の組み合わせから成る群から選択される。
以下、(A)~(F)に従う血液滑性付与剤について詳細に説明する。
(A)(A1)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する2~4個のヒドロキシル基とを有する化合物と、(A2)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する1個のカルボキシル基とを有する化合物とのエステル(以下、「化合物(A)」と称する場合がある)は、上述の動粘度、抱水率及び重量平均分子量を有する限り、全てのヒドロキシル基がエステル化されていなくともよい。
化合物(A)としては、例えば、(a1)鎖状炭化水素テトラオールと少なくとも1の脂肪酸とのエステル、(a2)鎖状炭化水素トリオールと少なくとも1の脂肪酸とのエステル、及び(a3)鎖状炭化水素ジオールと少なくとも1の脂肪酸とのエステルが挙げられる。
上記鎖状炭化水素テトラオールと少なくとも1の脂肪酸とのエステルとしては、例えば、次の式(1):
(式中、R1~R4は、それぞれ、鎖状炭化水素である)
また、上記ペンタエリトリトールと脂肪酸とのエステルとしては、抱水率の値を小さくする観点から、ジエステル、トリエステル又はテトラエステルであることが好ましく、トリエステル又はテトラエステルであることがより好ましく、そしてテトラエステルであることがさらに好ましい。
なお、上記IOBの計算に当たっては、二重結合、三重結合、iso分岐、及びtert分岐の影響は、考慮していない(以下、同様である)。
上記鎖状炭化水素トリオールと少なくとも1の脂肪酸とのエステルとしては、例えば、次の式(5):
のグリセリンと脂肪酸とのモノエステルが挙げられる。
上記グリセリンと脂肪酸とのトリエステルは、いわゆる、脂肪であり、人体を構成しうる成分であるため、安全性の観点から好ましい。
上記鎖状炭化水素ジオールと少なくとも1の脂肪酸とのエステルとしては、例えば、C2~C6の鎖状炭化水素ジオール、例えば、C2~C6のグリコール、例えば、エチレングリコール、プロピレングリコール、ブチレングリコール、ペンチレングリコール又はヘキシレングリコールと、脂肪酸とのモノエステル又はジエステルが挙げられる。
R8COOCkH2kOCOR9 (8)
(式中、kは、2~6の整数であり、そしてR8及びR9は、それぞれ、鎖状炭化水素である)
のC2~C6グリコールと脂肪酸とのジエステル、及び次の式(9):
R8COOCkH2kOH (9)
(式中、kは、2~6の整数であり、そしてR8は、鎖状炭化水素である)
のC2~C6グリコールと脂肪酸とのモノエステルが挙げられる。
さらに、上記C2~C6グリコールと脂肪酸とのエステルとしては、抱水率の値を小さくする観点から、ジエステルであることが好ましい。
上記C2~C6グリコールと脂肪酸とのエステルの市販品としては、例えば、コムポールBL、コムポールBS(以上、日油株式会社製)等が挙げられる。
(B) (B1)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する2~4個のヒドロキシル基とを有する化合物と、(B2)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する1個のヒドロキシル基とを有する化合物とのエーテル(以下、「化合物(B)」と称する場合がある)は、上述の動粘度、抱水率及び重量平均分子量を有する限り、全てのヒドロキシル基がエーテル化されていなくともよい。
の、ペンタエリトリトールと脂肪族1価アルコールとのテトラエーテル、トリエーテル、ジエーテル及びモノエーテルが挙げられる。
の、グリセリンと脂肪族1価アルコールとのトリエーテル、ジエーテル及びモノエーテルが挙げられる。
R17OCnH2nOR18 (17)
(式中、nは、2~6の整数であり、そしてR17及びR18は、それぞれ、鎖状炭化水素である)
のC2~C6グリコールと脂肪族1価アルコールとのジエーテル、及び次の式(18):
R17OCnH2nOH (18)
(式中、nは、2~6の整数であり、そしてR17は、鎖状炭化水素である)
のC2~C6グリコールと脂肪族1価アルコールとのモノエーテルが挙げられる。
また、IOBを約0.00~約0.60とする観点から考察すると、式(18)に示されるエチレングリコール(n=2)と脂肪族1価アルコールとのモノエーテルでは、R17部分の炭素数が、約8以上であることが好ましい(上記炭素数が8の場合に、IOBが0.60となる)。
(C) (C1)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する、2~4個のカルボキシル基とを含むカルボン酸、ヒドロキシ酸、アルコキシ酸又はオキソ酸と、(C2)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する1個のヒドロキシル基とを有する化合物とのエステル(以下、「化合物(C)」と称する場合がある)は、上述の動粘度、抱水率及び重量平均分子量を有する限り、全てのカルボキシル基がエステル化されていなくともよい。
(C2)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する1個のヒドロキシル基とを有する化合物としては、「化合物(B)」の項で列挙されるもの、例えば、脂肪族1価アルコールが挙げられる。
化合物(C)の例としては、アジピン酸ジオクチル、O-アセチルクエン酸トリブチル等が挙げられ、そして市販されている。
(D)鎖状炭化水素部分と、上記鎖状炭化水素部分のC-C単結合間に挿入された、エーテル結合(-O-)、カルボニル結合(-CO-)、エステル結合(-COO-)、及びカーボネート結合(-OCOO-)から成る群から選択されるいずれか1つの結合とを有する化合物(以下、「化合物(D)」と称する場合がある)としては、(d1)脂肪族1価アルコールと脂肪族1価アルコールとのエーテル、(d2)ジアルキルケトン、(d3)脂肪酸と脂肪族1価アルコールとのエステル、及び(d4)ジアルキルカーボネートが挙げられる。
上記脂肪族1価アルコールと脂肪族1価アルコールとのエーテルとしては、次の式(19):
R19OR20 (19)
(式中、R19及びR20は、それぞれ、鎖状炭化水素である)
を有する化合物が挙げられる。
上記ジアルキルケトンとしては、次の式(20):
R21COR22 (20)
(式中、R21及びR22は、それぞれ、アルキル基である)
を有する化合物が挙げられる。
上記ジアルキルケトンは、市販されている他、公知の方法、例えば、第二級アルコールを、クロム酸等で酸化することにより得られる。
上記脂肪酸と脂肪族1価アルコールとのエステルとしては、例えば、次の式(21):
R23COOR24 (21)
(式中、R23及びR24は、それぞれ、鎖状炭化水素である)
を有する化合物が挙げられる。
上記ジアルキルカーボネートとしては、次の式(22):
R25OC(=O)OR26 (22)
(式中、R25及びR26は、それぞれ、アルキル基である)
を有する化合物が挙げられる。
上記ジアルキルカーボネートは、市販されている他、例えば、ホスゲンとアルコールとの反応、塩化ギ酸エステルとアルコール又はアルコラートとの反応、及び炭酸銀とヨウ化アルキルとの反応により合成される。
なお、(d2)ジアルキルケトンにおいて、上記炭素数の合計が約8の場合、例えば、5-ノナノンでは、融点は約-50℃であり、蒸気圧は20℃で約230Paである。
(E)ポリオキシC3~C6アルキレングリコール、又はそのアルキルエステル若しくはアルキルエーテル(以下、化合物(E)と称する場合がある)としては、(e1)ポリオキシC3~C6アルキレングリコール、(e2)ポリオキシC3~C6アルキレングリコールと少なくとも1の脂肪酸とのエステル、(e3)ポリオキシC3~C6アルキレングリコールと少なくとも1の脂肪族1価アルコールとのエーテルが挙げられる。以下、説明する。
上記ポリオキシC3~C6アルキレングリコールは、i)オキシC3~C6アルキレン骨格、すなわち、オキシプロピレン骨格、オキシブチレン骨格、オキシペンチレン骨格、及びオキシヘキシレン骨格から成る群から選択されるいずれか1種の骨格を有し且つ両末端にヒドロキシ基を有するホモポリマー、ii)上記群から選択される2種以上の骨格を有し且つ両末端にヒドロキシ基を有するブロックコポリマー、又はiii)上記群から選択される2種以上の骨格を有し且つ両末端にヒドロキシ基を有するランダムコポリマーを意味する。
HO-(CmH2mO)n-H (23)
(式中、mは3~6の整数である)
により表わされる。
上記ポリC3~C6アルキレングリコールの市販品としては、例えば、ユニオール(商標)PB-500及びPB-700(以上、日油株式会社製)が挙げられる。
上記ポリオキシC3~C6アルキレングリコールと少なくとも1の脂肪酸とのエステルとしては、「(e1)ポリオキシC3~C6アルキレングリコール」の項で説明したポリオキシC3~C6アルキレングリコールのOH末端の一方又は両方が、脂肪酸によりエステル化されているもの、すなわち、モノエステル及びジエステルが挙げられる。
上記ポリオキシC3~C6アルキレングリコールと少なくとも1の脂肪族1価アルコールとのエーテルとしては、「(e1)ポリオキシC3~C6アルキレングリコール」の項で説明したポリオキシC3~C6アルキレングリコールのOH末端の一方又は両方が、脂肪族1価アルコールによりエーテル化されているもの、すなわち、モノエーテル及びジエーテルが挙げられる。
ポリオキシC3~C6アルキレングリコールと少なくとも1の脂肪族1価アルコールとのエーテルにおいて、エーテル化すべき脂肪族1価アルコールとしては、例えば、「化合物(B)」の項で列挙されている脂肪族1価アルコールが挙げられる。
上記鎖状炭化水素としては、例えば、(f1)鎖状アルカン、例えば、直鎖アルカン及び分岐鎖アルカンが挙げられる。直鎖アルカンは、融点が約45℃以下の場合には、炭素数が約22以下となり、そして蒸気圧が1気圧及び25℃で約0.01Pa以下である場合には、炭素数が約13以上となる。分岐鎖アルカンは、直鎖アルカンよりも、同一炭素数において融点が低い傾向がある。従って、分岐鎖アルカンは、融点が約45℃以下の場合でも、炭素数が22以上のものも含む。
上記炭化水素の市販品としては、例えば、パールリーム6(日油株式会社)が挙げられる。
以下、血液滑性付与剤含有組成物について説明する。
血液滑性付与剤含有組成物は、上述の血液滑性付与剤と、少なくとも1種の他の成分とを含む。上記少なくとも1種の他の成分としては、本開示の効果を阻害しないものであれば特に制限されず、当業界で吸収性物品、特にトップシートに慣用的に適用されるものが挙げられる。
上記少なくとも1種の他の成分としては、例えば、シリコーンオイル、シリコーン、シリコーン系レジン等が挙げられる。
上記少なくとも1種の他の成分としては、例えば、酸化防止剤、例えば、BHT(2,6-ジ-t-ブチル-p-クレゾール)、BHA(ブチル化ヒドロキシアニソール)、没食子酸プロピル等が挙げられる。
上記ビタミンとしては、例えば、脂溶性ビタミン、例えば、ビタミンA群、ビタミンD群、ビタミンE群、およびビタミンK群等が挙げられる。
上記ビタミンにはまた、それらの誘導体も含まれる。
上記少なくとも1種の他の成分としては、例えば、コレステロール、ヒアルロン酸、レシチン、セラミド等が挙げられる。
上記皮膚収斂剤としては、例えば、酸化亜鉛、硫酸アルミニウム、タンニン酸等、油溶性皮膚収斂剤、例えば、油溶性ポリフェノールが挙げられる。上記油溶性ポリフェノールとしては、天然の油溶性ポリフェノール、例えば、オオバクエキス、オトギリソウエキス、オドリコソウエキス、カモミラエキス、ゴボウエキス、サルビアエキス、シナノキエキス、セイヨウボダイジュエキス、シラカバエキス、スギナエキス、セージエキス、サルビアエキス、テウチグルミエキス、ハイビスカスエキス、ビワ葉エキス、ボダイジュエキス、ホップエキス、マロニエエキス、ヨクイニンエキス等が挙げられる。
上記抗シワ剤としては、例えば、乳酸、サリチル酸、サリチル酸誘導体、グリコール酸、フィチン酸、リポ酸、リソフォスファチド酸が挙げられる。
上記美白剤としては、例えば、ナイアシンアミド、コウジ酸、アルブチン、グルコサミン及び誘導体、フィトステロール誘導体、アスコルビン酸及びその誘導体、並びにクワ抽出物及び胎盤抽出物が挙げられる。
上記pH調整剤としては、皮膚を弱酸性に保つためのもの、例えば、リンゴ酸、コハク酸、クエン酸、酒石酸、乳酸等が挙げられる。
上記顔料としては、例えば、酸化チタンが挙げられる。
界面活性剤の量が増えると、経血がトップシートに残存しやすい傾向があるからである。なお、界面活性剤は、抱水率の値を有しない。水と混和するため、測定すべき物質の層が存在しないからである。
水は、吸収性物品の吸収性能を低下させるため、少ないことが好ましい。
上記血液滑性付与剤含有組成物の動粘度が約80mm2/sを超えると、粘性が高く、トップシートの肌当接面に到達した経血と共に、血液滑性付与剤組成物が吸収性物品の内部に滑落することが難しくなる傾向があるからである。
なお、上記血液滑性付与剤含有組成物が固形物を含む場合には、動粘度及び抱水率の測定において、それらを濾過により取り除くことが好ましい。
本開示の不織布は、当技術分野に公知の方法に従って製造することができる。本開示の不織布は、例えば、特許文献1に記載の方法に従って、貫通孔を設けるべき且つ血液滑性付与剤を塗布すべき不織布を形成し、次いで、穿孔により畝部に穿孔部(貫通孔)を設けることにより、血液滑性付与剤を塗布すべき不織布を形成し、次いで、血液滑性付与剤を塗布すべき不織布に、血液滑性付与剤を塗布することにより製造することができる。例えば、図1~図4に示される不織布1の、穿孔部4’を設ける前のものは、特許文献1の「第1実施形態」に従って製造することができる。
図7は、穿孔部を形成する方法の一例を説明するための図である。
上記方法により、血液滑性付与剤を塗布すべき不織布が形成される。
なお、図7では、不織布シート112及び吸収体103の両方を、同時に穿孔する例を示したが、別の実施形態では、図7に示すような穿孔装置を用いて、不織布のみを穿孔し、不織布に穿孔部が形成される。
なお、血液改質付与剤又は血液滑性付与剤含有組成物の塗布量は、例えば、コントロールシームHMAガンからの塗出量を増減することにより調節することができる。
また、コントロールシームHMAガンから、血液滑性付与剤等を、血液滑性付与剤を塗布すべき不織布全体に塗布することにより、畝部及び溝部に血液滑性付与剤含有領域を形成することができる。
上記不織布の例としては、例えば、エアスルー不織布、スパンボンド不織布、ポイントボンド不織布、スパンレース不織布、ニードルパンチ不織布、メルトブローン不織布、及びこれらの組み合わせ(例えば、SMS等)等が挙げられる。
上記吸収コアの構成要素としては、例えば、親水性繊維、例えば、粉砕パルプ、コットン等のセルロース、レーヨン、フィブリルレーヨン等の再生セルロース、アセテート、トリアセテート等の半合成セルロース、粒子状ポリマー、繊維状ポリマー、熱可塑性疎水性化学繊維、及び親水化処理された熱可塑性疎水性化学繊維、並びにこれらの組み合わせ等が挙げられる。また、上記吸収コアの構成要素として、高吸収性ポリマー、例えば、アクリル酸ナトリウムコポリマー等の粒状物が挙げられる。
上記フラップは、サイドシートと、液不透過性のバックシートとから形成されることができ、所望により、補強シート、例えば、紙をそれらの間に有することができる。
なお、本開示の不織布、並びに当該不織布を含む吸収性物品は、公知のスキンケア組成物、ローション組成物等を含む吸収性物品とは異なり、エモリエント剤、固定化剤等の成分が不要であり、本開示の実施形態の1つに従う不織布、並びに当該不織布を含む吸収性物品は、エモリエント剤及び/又は固定化剤を含まない。
[例1]
[リウェット率及び吸収体移行速度の評価]
図5に示されるような形状を有する市販の生理用ナプキン(血液滑性付与剤が塗布されていない)を準備した。当該生理用ナプキンは、親水剤で処理されたエアスルー不織布(ポリエステル及びポリエチレンテレフタレートから成る複合繊維、坪量:35g/m2)から形成されたトップシートと、エアスルー不織布(ポリエステル及びポリエチレンテレフタレートから成る複合繊維、坪量:30g/m2)から形成されたセカンドシートと、パルプ(坪量:150~450g/m2、中央部ほど多い)、アクリル系高吸収ポリマー(坪量:15g/m2)及びコアラップとしてのティッシュを含む吸収体と、撥水剤処理されたサイドシートと、ポリエチレンフィルムから成るバックシートとから形成されていた。
[(a1)鎖状炭化水素テトラオールと少なくとも1の脂肪酸とのエステル]
・ユニスター H-408BRS,日油株式会社製
テトラ2-エチルヘキサン酸ペンタエリトリトール,重量平均分子量:約640
・ユニスター H-2408BRS-22,日油株式会社製
テトラ2-エチルヘキサン酸ペンタエリトリトールと、ジ2-エチルヘキサン酸ネオペンチルグリコールとの混合物(58:42、重量比),重量平均分子量:約520
・Cetiol SB45DEO,コグニスジャパン株式会社製
脂肪酸が、オレイン酸又はステアリル酸である、グリセリンと脂肪酸とのトリエステル
・SOY42,日油株式会社製
C14の脂肪酸:C16の脂肪酸:C18の脂肪酸:C20の脂肪酸(飽和脂肪酸及び不飽和脂肪酸の両方を含む)がおおよそ0.2:11:88:0.8の質量比で含まれている、グリセリンと脂肪酸とのトリエステル,重量平均分子量:880
C8の脂肪酸:C10の脂肪酸:C12の脂肪酸がおおよそ37:7:56の重量比で含まれている、グリセリンと脂肪酸とのトリエステル,重量平均分子量:約570
・トリCL油脂肪酸グリセリド,日油株式会社製
C8の脂肪酸:C12の脂肪酸がおおよそ44:56の重量比で含まれている、グリセリンと脂肪酸とのトリエステル,重量平均分子量:約570
C8の脂肪酸:C10の脂肪酸がおおよそ85:15の重量比で含まれている、グリセリンと脂肪酸とのトリエステル,重量平均分子量:約480
・パナセート800,日油株式会社製
脂肪酸が全てオクタン酸(C8)である、グリセリンと脂肪酸とのトリエステル,重量平均分子量:約470
脂肪酸が全て2-エチルヘキサン酸(C8)である、グリセリンと脂肪酸とのトリエステル,重量平均分子量:約470
・NA36,日油株式会社製
C16の脂肪酸:C18の脂肪酸:C20の脂肪酸(飽和脂肪酸及び不飽和脂肪酸の両方を含む)がおおよそ5:92:3の重量比で含まれている、グリセリンと脂肪酸とのトリエステル,重量平均分子量:約880
C8の脂肪酸:C10の脂肪酸:C12の脂肪酸:C14の脂肪酸:C16の脂肪酸(飽和脂肪酸及び不飽和脂肪酸の両方を含む)がおおよそ4:8:60:25:3の重量比で含まれている、グリセリンと脂肪酸とのトリエステル,重量平均分子量:670
・カプリル酸ジグリセリド,日油株式会社製
脂肪酸がオクタン酸である、グリセリンと脂肪酸とのジエステル,重量平均分子量:340
・ユニスター H-208BRS,日油株式会社製
ジ2-エチルヘキサン酸ネオペンチルグリコール,重量平均分子量:約360
・コムポールBL,日油株式会社製
ブチレングリコールのドデカン酸(C12)モノエステル,重量平均分子量:約270
・コムポールBS,日油株式会社製
ブチレングリコールのオクタデカン酸(C18)モノエステル,重量平均分子量:約350
・O-アセチルクエン酸トリブチル,東京化成工業株式会社製
重量平均分子量:約400
・クエン酸トリブチル,東京化成工業株式会社製
重量平均分子量:約360
・アジピン酸ジオクチル,和光純薬工業製
重量平均分子量:約380
・エレクトールWE20,日油株式会社製
ドデカン酸(C12)と、ドデシルアルコール(C12)とのエステル,重量平均分子量:約360
・エレクトールWE40,日油株式会社製
テトラデカン酸(C14)と、ドデシルアルコール(C12)とのエステル,重量平均分子量:約390
・ユニオールPB500,日油株式会社製
ポリブチレングリコール,重量平均分子量:約500
・ユニオールPB700,日油株式会社製
ポリオキシブチレンポリオキシプロピレングリコール,重量平均分子量:約700
・パールリーム6,日油株式会社製
流動イソパラフィン、イソブテン及びn-ブテンを共重合し、次いで水素を付加することにより生成された分岐鎖炭化水素、重合度:約5~約10,重量平均分子量:約330
・NA50,日油株式会社製
NA36に水素を付加し、原料である不飽和脂肪酸に由来する二重結合の比率を下げたグリセリンと脂肪酸とのトリエステル,重量平均分子量:約880
・(カプリル酸/カプリン酸)モノグリセリド,日油株式会社製
オクタン酸(C8)及びデカン酸(C10)がおおよそ85:15の重量比で含まれている、グリセリンと脂肪酸とのモノエステル,重量平均分子量:約220
・Monomuls 90-L2ラウリン酸モノグリセリド,コグニスジャパン株式会社製
重量平均分子量:約230
・リンゴ酸ジイソステアリル
重量平均分子量:約640
・ユニオールPB1000R,日油株式会社製
ポリブチレングリコール,重量平均分子量:約1,000
・ユニオールD-250,日油株式会社製
ポリプロピレングリコール,重量平均分子量:約250
ポリプロピレングリコール,重量平均分子量:約400
・ユニオールD-700,日油株式会社製
ポリプロピレングリコール,重量平均分子量:約700
・ユニオールD-1000,日油株式会社製
ポリプロピレングリコール,重量平均分子量:約1,000
・ユニオールD-1200,日油株式会社製
ポリプロピレングリコール,重量平均分子量:約1,160
ポリプロピレングリコール,重量平均分子量:約2,030
・ユニオールD-3000,日油株式会社製
ポリプロピレングリコール,重量平均分子量:約3,000
・ユニオールD-4000,日油株式会社製
ポリプロピレングリコール,重量平均分子量:約4,000
ポリエチレングリコール,重量平均分子量:約1,500~約1,600
・ウィルブライトcp9,日油株式会社製
ポリブチレングリコールの両末端のOH基が、ヘキサデカン酸(C16)によりエステル化された化合物,重量平均分子量:約1,150
・ユニルーブMS-70K,日油株式会社製
ポリプロピレングリコールのステアリルエーテル,約15の繰返し単位,重量平均分子量:約1,140
ポリオキシエチレンモノステアレート、約7の繰返し単位、重量平均分子量:約880
・ユニルーブ5TP-300KB
ペンタエリトリトール1モルに、エチレンオキシド5モルと、プロピレンオキシド65モルとを付加させることにより生成した、ポリオキシエチレンポリオキシプロピレンペンタエリスリトールエーテル,重量平均分子量:4,130
ポリオキシエチレンポリオキシプロピレンポリオキシブチレングリセリン,重量平均分子量:約960
・ユニオール TG-330,日油株式会社製
ポリプロピレングリコールのグリセリルエーテル,約6の繰返し単位,重量平均分子量:約330
ポリプロピレングリコールのグリセリルエーテル,約16の繰返し単位,重量平均分子量:約1,000
・ユニオール TG-3000,日油株式会社製
ポリプロピレングリコールのグリセリルエーテル,約16の繰返し単位,重量平均分子量:約3,000
・ユニオール TG-4000,日油株式会社製
ポリプロピレングリコールのグリセリルエーテル,約16の繰返し単位,重量平均分子量:約4,000
ポリプロピレングリコールのジグリセリルエーテル,約9の繰返し単位,重量平均分子量:約700
・ユニオックスHC60,日油株式会社製
ポリオキシエチレン硬化ヒマシ油,重量平均分子量:約3,570
・ワセリン,コグニスジャパン株式会社製
石油に由来する炭化水素、半固形
上記試料の、動粘度、抱水率、重量平均分子量、IOB及び融点を、下記表2に示す。
また、融点に関し、「<45」は、融点が45℃未満であることを意味する。
各血液滑性付与剤を含むトップシートの上に、穴の開いたアクリル板(200mm×100mm,125g,中央に、40mm×10mmの穴が開いている)を置き、上記穴から、37±1℃のウマEDTA血(ウマの血液に、凝結防止のため、エチレンジアミン四酢酸(以下、「EDTA」と称する)が添加されたもの)3.0gを、ピペットを用いて滴下(1回目)し、1分後、37±1℃のウマEDTA血3.0gを、アクリル板の穴から、ピペットで再度滴下した(2回目)。
リウェット率(質量%)
=100×[FW1(g)-FW0(g)]/6.0(g)
リウェット率と、吸収体移行速度の結果を、下記表2に示す。
◎:血液の赤さがほとんど残っておらず、血液が存在した場所と、存在していない場所の区別がつかない
○:血液の赤さが若干残っているが、血液の存在した場所と、存在していない場所の区別がつきにくい
△:血液の赤さが若干残っており、血液が存在した場所が分かる
×:血液の赤さがそのまま残っている
○:タック性なし
△:若干のタック性有り
×:タック性有り
結果を、併せて下記表2に示す。
また、No.1-11,13,16,18~20及び23の血液滑性付与剤を含む生理用ナプキンでは、経血を吸収後のトップシートの肌当接面が、血液で赤く染まっておらず、不快感が少ないとの回答を得た。
[畝溝構造を有するトップシートにおける経血の表面残存率]
畝溝構造を有するトップシートにおける経血の表面残存率を評価した。
親水剤で処理されたエアスルー不織布(ポリエステル及びポリエチレンテレフタレートから成る複合繊維、坪量:35g/m2)から形成されたトップシートと、エアスルー不織布(ポリエステル及びポリエチレンテレフタレートから成る複合繊維、坪量:30g/m2)から形成されたセカンドシートと、パルプ(坪量:150~450g/m2、中央部ほど多い)、アクリル系高吸収ポリマー(坪量:15g/m2)及びコアラップとしてのティッシュを含む吸収体と、撥水剤処理されたサイドシートと、ポリエチレンフィルムから成るバックシートとを準備した。
次いで、バックシート、吸収体、セカンドシート、そして畝溝面を上にしてトップシートを順に重ね合わせることにより、生理用ナプキンNo.2-1を形成した。
また、血液滑性付与剤は、トップシートの肌当接面のほぼ全面に、そして畝部及び溝部の両方に塗布された。
トップシートの質量:W2(g)(試験前のトップシートの質量)を測定した後、吸収性物品の長手方向及び幅方向の中央部且つトップシートの上に、穴の開いたアクリル板(200mm×100mm,125g,中央に、40mm×10mmの穴が開いている)を置き、上記穴から、37±1℃のウマEDTA血(ウマの血液に、凝結防止のため、エチレンジアミン四酢酸(以下、「EDTA」と称する)が添加されたもの)4.0gを、ピペットを用いて滴下した。
表面残存率(質量%)
=100×[W3(g)-W2(g)]/4.0(g)
結果を、下記表3に示す。
血液滑性付与剤の作用を確認するために、さらに以下の実験を行った。
[血液滑性付与剤を含む血液の粘性]
血液滑性付与剤を含む血液の粘性を、Rheometric Expansion System ARES(Rheometric Scientific,Inc)を用いて測定した。ウマ脱繊維血に、パナセート810sを2質量%添加し、軽く撹拌して試料を形成し、直径50mmのパラレルプレートに試料を載せ、ギャップを100μmとし、37±0.5℃で粘度を測定した。パラレルプレートゆえ、試料に均一なせん断速度はかかっていないが、機器に表示された平均せん断速度は、10s-1であった。
[血液滑性付与剤を含む血液の顕微鏡写真]
健常ボランティアの経血を、食品保護用ラップフィルム上に採取し、その一部に、10倍の質量のリン酸緩衝生理食塩水中に分散されたパナセート810sを、パナセート810sの濃度が1質量%となるように添加した。経血を、スライドグラスに適下し、カバーグラスをかけ、光学顕微鏡にて、赤血球の状態を観察した。血液滑性付与剤を含まない経血の顕微鏡写真を図9(a)に、そしてパナセート810sを含む経血の顕微鏡写真を図9(b)に示す。
[血液滑性付与剤を含む血液の表面張力]
血液滑性付与剤を含む血液の表面張力を、協和界面科学社製接触角計 Drop Master500を用い、ペンダントドロップ法にて測定した。表面張力は、ヒツジ脱繊維血に、所定の量の血液滑性付与剤を添加し、十分振とうした後に測定した。
測定は、機器が自動で行うが、表面張力γは、以下の式により求められる(図10を参照)。
g:重力定数
1/H:ds/deから求められる補正項
ρ:密度
de:最大直径
ds:滴下端よりdeだけ上がった位置での径
測定には、京都電子工業株式会社のDA-505を用いた。
結果を、下記表4に示す。
血液の表面張力を下げることにより、吸収した血液をトップシートの繊維間に保持せず、速やかに吸収体に移行させると考えられる。
[J1]
吸収性物品のトップシート用の、縦方向と、横方向とを有する不織布であって、
上記不織布が、上記縦方向に延び且つ上記横方向に交互に配置されている複数の畝部及び複数の溝部を有し、
上記複数の畝部と、上記複数の溝部とが、それぞれ、複数の貫通孔を有し、
上記畝部が、40℃における0.01~80mm2/sの動粘度と、0.01~4.0質量%の抱水率と、1,000未満の重量平均分子量とを有する血液滑性付与剤を含む血液滑性付与剤含有領域を有する、
ことを特徴とする、上記不織布。
上記血液滑性付与剤が、0.00~0.60のIOBをさらに有する、J1に記載の不織布。
[J3]
上記溝部が、上記貫通孔として、上記溝部の不織布の繊維を減少させることにより形成した複数の開口部を有し、そして隣り合う2つの上記開口部の間に、隣り合う2つの畝部を連結する連結部を有する、J1又はJ2に記載の不織布。
上記連結部において、上記横方向に配向する繊維の含有率が、上記縦方向に配向する繊維の含有率よりも高い、J3に記載の不織布。
[J5]
上記畝部の上記貫通孔が、穿孔により形成された穿孔部を含む、J1~J4のいずれか一項に記載の不織布。
上記不織布の面積1cm2あたり、上記貫通孔を0.5~5.0個有する、J1~J5のいずれか一項に記載の不織布。
[J7]
上記畝部が、上記血液滑性付与剤含有領域において、1~30g/m2の坪量の血液滑性付与剤を含む、J1~J6のいずれか一項に記載の不織布。
上記血液滑性付与剤が、次の(i)~(iii)、
(i)炭化水素、
(ii) (ii-1)炭化水素部分と、(ii-2)上記炭化水素部分のC-C単結合間に挿入された、カルボニル基(-CO-)及びオキシ基(-O-)から成る群から選択される、一又は複数の、同一又は異なる基とを有する化合物、及び
(iii) (iii-1)炭化水素部分と、(iii-2)上記炭化水素部分のC-C単結合間に挿入された、カルボニル基(-CO-)及びオキシ基(-O-)から成る群から選択される、一又は複数の、同一又は異なる基と、(iii-3)上記炭化水素部分の水素原子を置換する、カルボキシル基(-COOH)及びヒドロキシル基(-OH)から成る群から選択される、一又は複数の、同一又は異なる基とを有する化合物、
並びにそれらの任意の組み合わせから成る群から選択され、
ここで、(ii)又は(iii)の化合物において、オキシ基が2つ以上挿入されている場合には、各オキシ基は隣接していない、
J1~J7のいずれか一項に記載の不織布。
上記血液滑性付与剤が、次の(i’)~(iii’)、
(i’)炭化水素、
(iii’) (ii-1)炭化水素部分と、(ii’-2)上記炭化水素部分のC-C単結合間に挿入された、カルボニル結合(-CO-)、エステル結合(-COO-)、カーボネート結合(-OCOO-)、及びエーテル結合(-O-)から成る群から選択される、一又は複数の、同一又は異なる結合とを有する化合物、及び
(iii’) (iii’-1)炭化水素部分と、(iii’-2)上記炭化水素部分のC-C単結合間に挿入された、カルボニル結合(-CO-)、エステル結合(-COO-)、カーボネート結合(-OCOO-)、及びエーテル結合(-O-)から成る群から選択される、一又は複数の、同一又は異なる結合と、(iii’-3)上記炭化水素部分の水素原子を置換する、カルボキシル基(-COOH)及びヒドロキシル基(-OH)から成る群から選択される、一又は複数の、同一又は異なる基とを有する化合物、
並びにそれらの任意の組み合わせから成る群から選択され、
ここで、(ii’)又は(iii’)の化合物において、2以上の同一又は異なる結合が挿入されている場合には、各結合は隣接していない、
J1~J8のいずれか一項に記載の不織布。
上記血液滑性付与剤が、次の(A)~(F)、
(A) (A1)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する2~4個のヒドロキシル基とを有する化合物と、(A2)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する1個のカルボキシル基とを有する化合物とのエステル、
(B) (B1)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する2~4個のヒドロキシル基とを有する化合物と、(B2)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する1個のヒドロキシル基とを有する化合物とのエーテル、
(C) (C1)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する、2~4個のカルボキシル基とを含むカルボン酸、ヒドロキシ酸、アルコキシ酸又はオキソ酸と、(C2)鎖状炭化水素部分と、上記鎖状炭化水素部分の水素原子を置換する1個のヒドロキシル基とを有する化合物とのエステル、
(D)鎖状炭化水素部分と、上記鎖状炭化水素部分のC-C単結合間に挿入された、エーテル結合(-O-)、カルボニル結合(-CO-)、エステル結合(-COO-)、及びカーボネート結合(-OCOO-)から成る群から選択されるいずれか1つの結合とを有する化合物、
(E)ポリオキシC3~C6アルキレングリコール、又はそのアルキルエステル若しくはアルキルエーテル、及び
(F)鎖状炭化水素、
並びにそれらの任意の組み合わせから成る群から選択される、J1~J9のいずれか一項に記載の不織布。
上記血液滑性付与剤が、(a1)鎖状炭化水素テトラオールと少なくとも1の脂肪酸とのエステル、(a2)鎖状炭化水素トリオールと少なくとも1の脂肪酸とのエステル、(a3)鎖状炭化水素ジオールと少なくとも1の脂肪酸とのエステル、(b1)鎖状炭化水素テトラオールと少なくとも1の脂肪族1価アルコールとのエーテル、(b2)鎖状炭化水素トリオールと少なくとも1の脂肪族1価アルコールとのエーテル、(b3)鎖状炭化水素ジオールと少なくとも1の脂肪族1価アルコールとのエーテル、(c1)4個のカルボキシル基を有する鎖状炭化水素テトラカルボン酸、ヒドロキシ酸、アルコキシ酸又はオキソ酸と、少なくとも1の脂肪族1価アルコールとのエステル、(c2)3個のカルボキシル基を有する鎖状炭化水素トリカルボン酸、ヒドロキシ酸、アルコキシ酸又はオキソ酸と、少なくとも1の脂肪族1価アルコールとのエステル、(c3)2個のカルボキシル基を有する鎖状炭化水素ジカルボン酸、ヒドロキシ酸、アルコキシ酸又はオキソ酸と、少なくとも1の脂肪族1価アルコールとのエステル、(d1)脂肪族1価アルコールと脂肪族1価アルコールとのエーテル、(d2)ジアルキルケトン、(d3)脂肪酸と脂肪族1価アルコールとのエステル、(d4)ジアルキルカーボネート、(e1)ポリオキシC3~C6アルキレングリコール、(e2)ポリオキシC3~C6アルキレングリコールと少なくとも1の脂肪酸とのエステル、(e3)ポリオキシC3~C6アルキレングリコールと少なくとも1の脂肪族1価アルコールとのエーテル、及び(f1)鎖状アルカン、並びにそれらの任意の組み合わせから成る群から選択される、J1~J10のいずれか一項に記載の不織布。
上記血液滑性付与剤が、上記不織布の繊維の表面に付着している、J1~J11のいずれか一項に記載の不織布。
[J13]
液透過性のトップシートと、液不透過性のバックシートと、上記トップシート及びバックシートの間の吸収体とを有する吸収性物品であって、
上記トップシートが、J1~J12のいずれか一項に記載の不織布である、
上記吸収性物品。
上記縦方向が、吸収性物品の長手方向と平行である、J13に記載の吸収性物品。
[J15]
生理用ナプキン又はパンティーライナーである、J1~J14のいずれか一項に記載の吸収性物品。
2 畝部
3 溝部
4 貫通孔
4' 穿孔部
4'' 開口部
5 連結部
11 吸収性物品
12 トップシート
13 吸収体
14 サイドフラップ
15 サイドシート
16 エンボス
17 血液滑性付与剤含有領域
18 バックシート
21 凸部
22 凹部
23 肌当接面
24 血液滑性付与剤
25,25’,25’’ 経血
Claims (15)
- 吸収性物品のトップシート用の、縦方向と、横方向とを有する不織布であって、
前記不織布が、前記縦方向に延び且つ前記横方向に交互に配置されている複数の畝部及び複数の溝部を有し、
前記複数の畝部と、前記複数の溝部とが、それぞれ、複数の貫通孔を有し、
前記畝部が、40℃における0.01~80mm2/sの動粘度と、0.01~4.0質量%の抱水率と、1,000未満の重量平均分子量とを有する血液滑性付与剤を含む血液滑性付与剤含有領域を有する、
ことを特徴とする、前記不織布。 - 前記血液滑性付与剤が、0.00~0.60のIOBをさらに有する、請求項1に記載の不織布。
- 前記溝部が、前記貫通孔として、前記溝部の不織布の繊維を減少させることにより形成した複数の開口部を有し、そして隣り合う2つの前記開口部の間に、隣り合う2つの畝部を連結する連結部を有する、請求項1又は2に記載の不織布。
- 前記連結部において、前記横方向に配向する繊維の含有率が、前記縦方向に配向する繊維の含有率よりも高い、請求項3に記載の不織布。
- 前記畝部の前記貫通孔が、穿孔により形成された穿孔部を含む、請求項1~4のいずれか一項に記載の不織布。
- 前記不織布の面積1cm2あたり、前記貫通孔を0.5~5.0個有する、請求項1~5のいずれか一項に記載の不織布。
- 前記畝部が、前記血液滑性付与剤含有領域において、1~30g/m2の坪量の血液滑性付与剤を含む、請求項1~6のいずれか一項に記載の不織布。
- 前記血液滑性付与剤が、次の(i)~(iii)、
(i)炭化水素、
(ii) (ii-1)炭化水素部分と、(ii-2)前記炭化水素部分のC-C単結合間に挿入された、カルボニル基(-CO-)及びオキシ基(-O-)から成る群から選択される、一又は複数の、同一又は異なる基とを有する化合物、及び
(iii) (iii-1)炭化水素部分と、(iii-2)前記炭化水素部分のC-C単結合間に挿入された、カルボニル基(-CO-)及びオキシ基(-O-)から成る群から選択される、一又は複数の、同一又は異なる基と、(iii-3)前記炭化水素部分の水素原子を置換する、カルボキシル基(-COOH)及びヒドロキシル基(-OH)から成る群から選択される、一又は複数の、同一又は異なる基とを有する化合物、
並びにそれらの任意の組み合わせから成る群から選択され、
ここで、(ii)又は(iii)の化合物において、オキシ基が2つ以上挿入されている場合には、各オキシ基は隣接していない、
請求項1~7のいずれか一項に記載の不織布。 - 前記血液滑性付与剤が、次の(i’)~(iii’)、
(i’)炭化水素、
(ii’) (ii’-1)炭化水素部分と、(ii’-2)前記炭化水素部分のC-C単結合間に挿入された、カルボニル結合(-CO-)、エステル結合(-COO-)、カーボネート結合(-OCOO-)、及びエーテル結合(-O-)から成る群から選択される、一又は複数の、同一又は異なる結合とを有する化合物、及び
(iii’) (iii’-1)炭化水素部分と、(iii’-2)前記炭化水素部分のC-C単結合間に挿入された、カルボニル結合(-CO-)、エステル結合(-COO-)、カーボネート結合(-OCOO-)、及びエーテル結合(-O-)から成る群から選択される、一又は複数の、同一又は異なる結合と、(iii’-3)前記炭化水素部分の水素原子を置換する、カルボキシル基(-COOH)及びヒドロキシル基(-OH)から成る群から選択される、一又は複数の、同一又は異なる基とを有する化合物、
並びにそれらの任意の組み合わせから成る群から選択され、
ここで、(ii’)又は(iii’)の化合物において、2以上の同一又は異なる結合が挿入されている場合には、各結合は隣接していない、
請求項1~8のいずれか一項に記載の不織布。 - 前記血液滑性付与剤が、次の(A)~(F)、
(A) (A1)鎖状炭化水素部分と、前記鎖状炭化水素部分の水素原子を置換する2~4個のヒドロキシル基とを有する化合物と、(A2)鎖状炭化水素部分と、前記鎖状炭化水素部分の水素原子を置換する1個のカルボキシル基とを有する化合物とのエステル、
(B) (B1)鎖状炭化水素部分と、前記鎖状炭化水素部分の水素原子を置換する2~4個のヒドロキシル基とを有する化合物と、(B2)鎖状炭化水素部分と、前記鎖状炭化水素部分の水素原子を置換する1個のヒドロキシル基とを有する化合物とのエーテル、
(C) (C1)鎖状炭化水素部分と、前記鎖状炭化水素部分の水素原子を置換する、2~4個のカルボキシル基とを含むカルボン酸、ヒドロキシ酸、アルコキシ酸又はオキソ酸と、(C2)鎖状炭化水素部分と、前記鎖状炭化水素部分の水素原子を置換する1個のヒドロキシル基とを有する化合物とのエステル、
(D)鎖状炭化水素部分と、前記鎖状炭化水素部分のC-C単結合間に挿入された、エーテル結合(-O-)、カルボニル結合(-CO-)、エステル結合(-COO-)、及びカーボネート結合(-OCOO-)から成る群から選択されるいずれか1つの結合とを有する化合物、
(E)ポリオキシC3~C6アルキレングリコール、又はそのアルキルエステル若しくはアルキルエーテル、及び
(F)鎖状炭化水素、
並びにそれらの任意の組み合わせから成る群から選択される、請求項1~9のいずれか一項に記載の不織布。 - 前記血液滑性付与剤が、(a1)鎖状炭化水素テトラオールと少なくとも1の脂肪酸とのエステル、(a2)鎖状炭化水素トリオールと少なくとも1の脂肪酸とのエステル、(a3)鎖状炭化水素ジオールと少なくとも1の脂肪酸とのエステル、(b1)鎖状炭化水素テトラオールと少なくとも1の脂肪族1価アルコールとのエーテル、(b2)鎖状炭化水素トリオールと少なくとも1の脂肪族1価アルコールとのエーテル、(b3)鎖状炭化水素ジオールと少なくとも1の脂肪族1価アルコールとのエーテル、(c1)4個のカルボキシル基を有する鎖状炭化水素テトラカルボン酸、ヒドロキシ酸、アルコキシ酸又はオキソ酸と、少なくとも1の脂肪族1価アルコールとのエステル、(c2)3個のカルボキシル基を有する鎖状炭化水素トリカルボン酸、ヒドロキシ酸、アルコキシ酸又はオキソ酸と、少なくとも1の脂肪族1価アルコールとのエステル、(c3)2個のカルボキシル基を有する鎖状炭化水素ジカルボン酸、ヒドロキシ酸、アルコキシ酸又はオキソ酸と、少なくとも1の脂肪族1価アルコールとのエステル、(d1)脂肪族1価アルコールと脂肪族1価アルコールとのエーテル、(d2)ジアルキルケトン、(d3)脂肪酸と脂肪族1価アルコールとのエステル、(d4)ジアルキルカーボネート、(e1)ポリオキシC3~C6アルキレングリコール、(e2)ポリオキシC3~C6アルキレングリコールと少なくとも1の脂肪酸とのエステル、(e3)ポリオキシC3~C6アルキレングリコールと少なくとも1の脂肪族1価アルコールとのエーテル、及び(f1)鎖状アルカン、並びにそれらの任意の組み合わせから成る群から選択される、請求項1~10のいずれか一項に記載の不織布。
- 前記血液滑性付与剤が、前記不織布の繊維の表面に付着している、請求項1~11のいずれか一項に記載の不織布。
- 液透過性のトップシートと、液不透過性のバックシートと、前記トップシート及びバックシートの間の吸収体とを有する吸収性物品であって、
前記トップシートが、請求項1~12のいずれか一項に記載の不織布である、
前記吸収性物品。 - 前記縦方向が、吸収性物品の長手方向と平行である、請求項13に記載の吸収性物品。
- 生理用ナプキン又はパンティーライナーである、請求項1~14のいずれか一項に記載の吸収性物品。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13841207.7A EP2901981B1 (en) | 2012-09-30 | 2013-09-12 | Nonwoven and absorbent article |
US14/431,951 US10092463B2 (en) | 2012-09-30 | 2013-09-12 | Nonwoven and absorbent article having a blood slipping agent |
CN201380050909.1A CN104684518B (zh) | 2012-09-30 | 2013-09-12 | 无纺布及吸收性物品 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012218979A JP5998000B2 (ja) | 2012-09-30 | 2012-09-30 | 不織布及び吸収性物品 |
JP2012-218979 | 2012-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014050600A1 true WO2014050600A1 (ja) | 2014-04-03 |
Family
ID=50388007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/074735 WO2014050600A1 (ja) | 2012-09-30 | 2013-09-12 | 不織布及び吸収性物品 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10092463B2 (ja) |
EP (1) | EP2901981B1 (ja) |
JP (1) | JP5998000B2 (ja) |
CN (1) | CN104684518B (ja) |
TW (1) | TWI580409B (ja) |
WO (1) | WO2014050600A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5745487B2 (ja) * | 2012-09-28 | 2015-07-08 | ユニ・チャーム株式会社 | 吸収性物品 |
JP6418818B2 (ja) * | 2014-06-30 | 2018-11-07 | ユニ・チャーム株式会社 | 吸収性物品用の表面シート |
JP6138864B2 (ja) * | 2015-06-30 | 2017-05-31 | ユニ・チャーム株式会社 | 吸収性物品 |
JP6212531B2 (ja) * | 2015-11-30 | 2017-10-11 | 大王製紙株式会社 | 吸収性物品 |
JP6242423B2 (ja) * | 2016-03-29 | 2017-12-06 | 大王製紙株式会社 | 吸収性物品 |
JP6087462B1 (ja) * | 2016-05-13 | 2017-03-01 | ユニ・チャーム株式会社 | 吸収性物品 |
CN106363975A (zh) * | 2016-10-17 | 2017-02-01 | 广东川田卫生用品有限公司 | 一种无纺布及该无纺布的制造方法 |
JP6708107B2 (ja) * | 2016-12-06 | 2020-06-10 | Jnc株式会社 | 賦形不織布 |
CN110366489B (zh) | 2017-03-09 | 2021-07-30 | 宝洁公司 | 具有孔和空隙的三维材料 |
JP6944309B2 (ja) * | 2017-08-21 | 2021-10-06 | 大王製紙株式会社 | 吸収性物品、及び吸収性物品の製造方法 |
WO2019044219A1 (ja) * | 2017-08-31 | 2019-03-07 | 花王株式会社 | 不織布 |
US20210220184A1 (en) * | 2018-08-03 | 2021-07-22 | Anne's Day Ltd | Absorbent tampon for treatment of menstrual symptoms |
USD919084S1 (en) * | 2019-03-19 | 2021-05-11 | Johnson & Johnson Consumer Inc. | Absorbent article |
USD917692S1 (en) | 2019-03-19 | 2021-04-27 | Johnson & Johnson Consumer Inc. | Absorbent article |
USD978342S1 (en) * | 2019-09-06 | 2023-02-14 | Kimberly-Clark Worldwide, Inc. | Feminine pad |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002238947A (ja) * | 2001-02-20 | 2002-08-27 | Kao Corp | 吸収性物品 |
JP2008002034A (ja) | 2006-06-23 | 2008-01-10 | Uni Charm Corp | 不織布、不織布製造方法及び不織布製造装置 |
JP2008025083A (ja) | 2006-06-23 | 2008-02-07 | Uni Charm Corp | 不織布 |
JP2010518918A (ja) | 2007-02-16 | 2010-06-03 | ザ プロクター アンド ギャンブル カンパニー | ポリプロピレングリコール材料を含むローションを備える吸収性物品 |
JP2011510801A (ja) | 2008-02-15 | 2011-04-07 | ザ プロクター アンド ギャンブル カンパニー | ポリプロピレングリコール材料を含むローションを備える吸収性物品 |
JP2012236001A (ja) * | 2011-04-28 | 2012-12-06 | Unicharm Corp | 吸収性物品 |
WO2013129236A1 (ja) * | 2012-02-29 | 2013-09-06 | ユニ・チャーム株式会社 | 吸収性物品 |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5643588A (en) * | 1994-11-28 | 1997-07-01 | The Procter & Gamble Company | Diaper having a lotioned topsheet |
US20030082219A1 (en) * | 2001-10-01 | 2003-05-01 | The Procter & Gamble Company | Skin care compositions comprising low concentrations of skin treatment agents |
JP2003192563A (ja) * | 2001-12-26 | 2003-07-09 | Lion Corp | 含浸用組成物、皮膚保護用含浸体 |
KR100978433B1 (ko) * | 2002-03-26 | 2010-08-26 | 가오 가부시키가이샤 | 클렌징 화장료 |
JPWO2007039974A1 (ja) * | 2005-10-03 | 2009-04-16 | 大正製薬株式会社 | 乳剤性ローション剤 |
EP1842564B1 (en) * | 2006-04-05 | 2014-02-19 | The Procter and Gamble Company | Absorbent articles including odour control system |
JP5123505B2 (ja) | 2006-06-23 | 2013-01-23 | ユニ・チャーム株式会社 | 不織布 |
JP5069890B2 (ja) | 2006-06-23 | 2012-11-07 | ユニ・チャーム株式会社 | 不織布 |
JP5328088B2 (ja) * | 2006-06-23 | 2013-10-30 | ユニ・チャーム株式会社 | 不織布 |
JP5154048B2 (ja) | 2006-06-23 | 2013-02-27 | ユニ・チャーム株式会社 | 不織布 |
CN101443501B (zh) * | 2006-06-23 | 2011-05-18 | 尤妮佳股份有限公司 | 无纺布 |
JP5123513B2 (ja) | 2006-06-23 | 2013-01-23 | ユニ・チャーム株式会社 | 吸収体 |
EP2034073B1 (en) | 2006-06-23 | 2013-10-02 | Uni-Charm Corporation | Absorptive article |
JP5328089B2 (ja) | 2006-06-23 | 2013-10-30 | ユニ・チャーム株式会社 | 多層不織布及び多層不織布の製造方法 |
JP5123511B2 (ja) | 2006-06-23 | 2013-01-23 | ユニ・チャーム株式会社 | 不織布 |
JP5123512B2 (ja) | 2006-06-23 | 2013-01-23 | ユニ・チャーム株式会社 | 不織布 |
JP2011131044A (ja) * | 2009-11-24 | 2011-07-07 | Kao Corp | 吸収性物品 |
US8921640B2 (en) * | 2010-10-08 | 2014-12-30 | The Procter & Gamble Company | Absorbent article with philic anhydrous lotion |
JP6092508B2 (ja) * | 2011-09-30 | 2017-03-08 | ユニ・チャーム株式会社 | 吸収性物品 |
US9237973B2 (en) * | 2012-01-31 | 2016-01-19 | Kimberly-Clark Worldwide, Inc. | Treated apertures |
JP5689428B2 (ja) * | 2012-02-22 | 2015-03-25 | Jx日鉱日石エネルギー株式会社 | 冷凍機油組成物及びその製造方法、冷凍機用作動流体組成物 |
JP5847055B2 (ja) * | 2012-02-29 | 2016-01-20 | ユニ・チャーム株式会社 | 吸収性物品 |
JP6116178B2 (ja) | 2012-04-02 | 2017-04-19 | ユニ・チャーム株式会社 | 吸収性物品 |
US20150065978A1 (en) * | 2012-04-10 | 2015-03-05 | Unicharm Corporation | Absorbent article |
JP6012380B2 (ja) | 2012-09-28 | 2016-10-25 | ユニ・チャーム株式会社 | 不織布及び吸収性物品 |
JP6116179B2 (ja) * | 2012-09-28 | 2017-04-19 | ユニ・チャーム株式会社 | 吸収性物品 |
-
2012
- 2012-09-30 JP JP2012218979A patent/JP5998000B2/ja not_active Expired - Fee Related
-
2013
- 2013-09-12 WO PCT/JP2013/074735 patent/WO2014050600A1/ja active Application Filing
- 2013-09-12 EP EP13841207.7A patent/EP2901981B1/en not_active Not-in-force
- 2013-09-12 CN CN201380050909.1A patent/CN104684518B/zh not_active Expired - Fee Related
- 2013-09-12 US US14/431,951 patent/US10092463B2/en not_active Expired - Fee Related
- 2013-09-27 TW TW102134934A patent/TWI580409B/zh not_active IP Right Cessation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002238947A (ja) * | 2001-02-20 | 2002-08-27 | Kao Corp | 吸収性物品 |
JP2008002034A (ja) | 2006-06-23 | 2008-01-10 | Uni Charm Corp | 不織布、不織布製造方法及び不織布製造装置 |
JP2008025083A (ja) | 2006-06-23 | 2008-02-07 | Uni Charm Corp | 不織布 |
JP2010518918A (ja) | 2007-02-16 | 2010-06-03 | ザ プロクター アンド ギャンブル カンパニー | ポリプロピレングリコール材料を含むローションを備える吸収性物品 |
JP2011510801A (ja) | 2008-02-15 | 2011-04-07 | ザ プロクター アンド ギャンブル カンパニー | ポリプロピレングリコール材料を含むローションを備える吸収性物品 |
JP2012236001A (ja) * | 2011-04-28 | 2012-12-06 | Unicharm Corp | 吸収性物品 |
WO2013129236A1 (ja) * | 2012-02-29 | 2013-09-06 | ユニ・チャーム株式会社 | 吸収性物品 |
Non-Patent Citations (1)
Title |
---|
FUJITA A.: "Organic compound predictions and organic paradigms", KAGAKU NO RYOIKI, vol. 11, no. 10, 1957, pages 719 - 725 |
Also Published As
Publication number | Publication date |
---|---|
EP2901981B1 (en) | 2017-10-25 |
TW201438680A (zh) | 2014-10-16 |
US20150238375A1 (en) | 2015-08-27 |
CN104684518A (zh) | 2015-06-03 |
TWI580409B (zh) | 2017-05-01 |
JP2014068954A (ja) | 2014-04-21 |
JP5998000B2 (ja) | 2016-09-28 |
US10092463B2 (en) | 2018-10-09 |
CN104684518B (zh) | 2016-05-25 |
EP2901981A1 (en) | 2015-08-05 |
EP2901981A4 (en) | 2016-03-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5998000B2 (ja) | 不織布及び吸収性物品 | |
JP6021567B2 (ja) | 吸収性物品 | |
JP6116179B2 (ja) | 吸収性物品 | |
JP6116177B2 (ja) | 吸収性物品 | |
JP5685234B2 (ja) | 吸収性物品 | |
JP5717672B2 (ja) | 吸収性物品 | |
JP6116178B2 (ja) | 吸収性物品 | |
JP5717686B2 (ja) | 吸収性物品 | |
JP5745487B2 (ja) | 吸収性物品 | |
JP5717685B2 (ja) | 吸収性物品 | |
WO2014050357A1 (ja) | 吸収性物品 | |
JP6057648B2 (ja) | 吸収性物品 | |
JP6012380B2 (ja) | 不織布及び吸収性物品 | |
JP5988810B2 (ja) | 吸収性物品 | |
JP5939949B2 (ja) | 吸収性物品 | |
JP5988811B2 (ja) | 吸収性物品 | |
JP6073101B2 (ja) | 吸収性物品 | |
JP6104551B2 (ja) | 吸収性物品 | |
JP5885633B2 (ja) | 吸収性物品 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13841207 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2013841207 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: IDP00201501737 Country of ref document: ID Ref document number: 2013841207 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14431951 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |