WO2016132790A1 - Feuille d'essuyage - Google Patents

Feuille d'essuyage Download PDF

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Publication number
WO2016132790A1
WO2016132790A1 PCT/JP2016/051306 JP2016051306W WO2016132790A1 WO 2016132790 A1 WO2016132790 A1 WO 2016132790A1 JP 2016051306 W JP2016051306 W JP 2016051306W WO 2016132790 A1 WO2016132790 A1 WO 2016132790A1
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WO
WIPO (PCT)
Prior art keywords
surface layer
wiping
fibers
sheet
layer
Prior art date
Application number
PCT/JP2016/051306
Other languages
English (en)
Japanese (ja)
Inventor
祐子 池田
田中　嘉則
坂東　健司
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to BR112017014613-4A priority Critical patent/BR112017014613B1/pt
Priority to CN201680005661.0A priority patent/CN107105869B/zh
Priority to KR1020177016975A priority patent/KR102449531B1/ko
Publication of WO2016132790A1 publication Critical patent/WO2016132790A1/fr
Priority to PH12017501163A priority patent/PH12017501163A1/en

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D33/00—Containers or accessories specially adapted for handling powdery toiletry or cosmetic substances
    • A45D33/34—Powder-puffs, e.g. with installed container
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K7/00—Body washing or cleaning implements
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/08—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of fibres or yarns

Definitions

  • the present disclosure relates to a wiping sheet, particularly a wiping sheet that can be wiped in a dry state and a wet state.
  • Patent Document 1 discloses a wiping sheet having a surface layer including ultrafine fibers formed by splitting split-type composite fibers and a back surface layer including hydrophilic fibers having a larger average fiber diameter than the ultrafine fibers. Has been.
  • the surface layer formed from ultrafine fibers directly touches the user's skin. Since the fine fibers can penetrate into the pores and scrape off sebum and makeup stains, the wipes are excellent in wiping, and the skin is less irritating and excellent in the touch.
  • the split type composite fiber of the surface layer does not draw a smooth curve when the cross section in the radial direction is seen, and may cause irritation to the skin when touching sensitive skin.
  • the back surface formed with the back surface layer which consists of hydrophilic fibers is smooth, it is hard to function as a wiping surface. Therefore, when the user selects the back surface of the wiping sheet as the wiping surface, the cosmetic powder and dust adhering to the face cannot be captured sufficiently.
  • An object of the present invention is to provide a wiping sheet that has a good surface feel and can exhibit wiping properties on both front and back surfaces.
  • the present invention provides a first direction and a second direction intersecting the first direction, a surface layer mainly composed of hygroscopic long fibers having an average fiber diameter of 10 ⁇ m or less, and an average fiber diameter.
  • the present invention relates to a wiping sheet having a back surface layer mainly composed of short fibers exceeding 10 ⁇ m.
  • the long fibers are irregularly arced and uniformly spread in a mesh shape, and the back surface layer has a plurality of openings arranged in the first direction. Formed, and the long fibers straddle at least a part of the apertures.
  • the surface layer has an average fiber diameter of 10 ⁇ m or less, and the long fibers are irregularly arced and spread uniformly in a mesh shape.
  • the skin contact is good and the brushing effect is excellent, and when a liquid such as a cosmetic liquid is supplied, a uniform liquid film is formed so that the skin can be wetted uniformly.
  • the back surface layer is formed with a plurality of apertures arranged in the first direction, so that makeup powder and fine dust can be supplemented when rubbing the skin.
  • FIG. 4 The perspective view of the wiping sheet which concerns on this invention.
  • wire of FIG. FIG. 4 is a partially enlarged view of a region surrounded by an alternate long and short dash line IV in FIG. 3.
  • the side view which shows typically the main part in the manufacturing process of a wiping sheet.
  • the following embodiment relates to the wiping sheet 1 shown in FIGS. 1 to 8 which is an example of the present invention, and includes not only an indispensable structure of the invention but also a selective and preferable structure.
  • a wiping sheet 1 has a first direction X and a second direction Y intersecting with the first direction X, and a front surface 1a and a back surface 1b, and a surface layer 2 and a back surface layer stacked on each other. 3 is included.
  • the surface layer 2 is formed of a nonwoven fabric mainly composed of melt-blown fibers, which are hygroscopic long fibers 4 having an average fiber diameter of 10 ⁇ m or less.
  • the long fibers 4 for example, polyamide fibers such as nylon 6 and nylon 66, acrylic fibers, or hydrophobized hydrophobic fibers can be used.
  • the content of the long fibers 4 in the surface layer 2 is about 60% by mass or more, preferably about 95% by mass or more, and in this embodiment, 100% by mass.
  • the back surface layer 3 includes, for example, short fibers 5 such as cellulosic short fibers such as hygroscopic regenerated fibers such as rayon staples and natural fibers such as pulp fibers and thermoplastic synthetic fibers.
  • the content of short fibers in the back layer 3 is about 50 to 100% by mass for cellulose-based short fibers, and about 0 to 50% by mass for short fibers of thermoplastic synthetic fibers.
  • thermoplastic synthetic fiber for example, synthetic fibers such as polyethylene, polypropylene, polyethylene terephthalate, a mixture of synthetic fibers, or composite fibers using two or more of these synthetic resins can be used.
  • mold which consist of two synthetic fiber components from which melting
  • a certain back layer 3 can also be formed.
  • the fiber length of the long fiber 4 here is in the range of 30 to 200 mm, and the fiber length of the short fiber 5 here is smaller than that.
  • the average fiber diameter of the long fibers 4 (diameter of single fibers) is smaller than the average fiber diameter of the short fibers 5 of the back layer 3, and specifically, the average fiber diameter of the long fibers 4 is preferably 10 ⁇ m or less.
  • the average fiber diameter of the short fibers 5 is preferably about 10 ⁇ m or more, more preferably 10 to 20 ⁇ m.
  • the long fibers 4 have a lower hygroscopicity than the short fibers 5, and in this specification, the long fibers 4 are also referred to as ultrafine fibers and / or low hygroscopic fibers, and the short fibers 5 are also referred to as high hygroscopic fibers or water absorbent fibers.
  • the thickness t1 of the wiping sheet 1 is preferably about 0.2 to 0.3 mm, and the mass per unit area of the wiping sheet 1 is about 25 to 40 g / m 2. It is preferable that it is the range of these. Moreover, the specific volume of the wiping sheet
  • seat 1 is about 145 m ⁇ 3 > / kg in this embodiment.
  • the thickness dimension t2 of the surface layer 2 is smaller than the thickness dimension t3 of the back surface layer 3, and the thickness dimension t2 of the surface layer 2 is 20 to 60% of the thickness dimension t3 of the back surface layer 3. preferable.
  • the thickness dimension t2 of the surface layer 2 is about 0.02 to 0.15 mm
  • the thickness dimension t3 of the back surface layer 3 is about 0.1 to 0.25 mm.
  • the thickness dimension t2 of the surface layer 2 is less than 0.02 mm, the wiping portion of the wiping sheet 1 may become too thin and the wiping property may be deteriorated.
  • the thickness dimension t2 is more than 0.15 mm. In this case, since the thickness dimension t3 of the back surface layer 3 is relatively small, the bending rigidity of the wiping sheet 1 is lowered, and the wiping sheet 1 is weakened and may be twisted during use.
  • the thickness dimension t1 of the wiping sheet 1 is measured using a thickness meter (UF-60, manufactured by Daiei Kagaku Seisakusho Co., Ltd.) with a load of 3.0 gf / cm 2 applied to the wiping sheet 1.
  • the thickness dimensions t2 and t3 of the surface layer 2 and the back surface layer 3 are measured by observing the cross section of the wiping sheet 1 using a microscope (manufactured by Keyence Corporation, Real Surface View Microscope VE-7800).
  • the specific volume (m 3 / kg) of the wiping sheet 1 is calculated as the reciprocal of the density (g / cm 3 ) ⁇ 10 3 .
  • Mass per unit area of the surface layer 2 is in a range of 5 ⁇ 30 g / m 2, and more preferably 5 ⁇ 15g / m 2.
  • the density of the surface layer 2 is preferably about 0.05 to 0.2 g / cm 3 , and is about 0.11 g / cm 3 in this embodiment.
  • the mass per unit area of the surface layer 2 is about 10 g / m 2 or less
  • the mass per unit area of the back layer 3 is preferably about 25 g / m 2 or more.
  • the mass per unit area of the back layer 3 is about 10 to 35 g / m 2 , and more preferably about 15 to 30 g / m 2 .
  • the density of the back layer 3 is preferably about 0.08 to 0.2 g / cm 3 .
  • the wiping sheet 1 of the present invention can be used in either a dry or wet state, and covers a wiping sheet for wiping off dirt such as sebum or makeup adhering to the skin or a pad of a makeup pad. It is suitably used as a wet sheet (wet tissue) impregnated with a sheet or a cleansing agent.
  • a wet sheet wet tissue
  • the wiping sheet 1 When the wiping sheet 1 is used in a wet state, it can be impregnated with water, wetting agents such as ethylene glycol, drugs such as alcohols and antibacterial agents, fragrances and other components by known methods.
  • the wipe sheet 1 is used as a wipe for objectives (including dry) impregnated with drugs such as anti-personal agents and antibacterial agents as in the present embodiment.
  • the wiping sheet 1 can be used for a surface sheet of a sanitary napkin or a body side liner of a disposable diaper.
  • the wiping sheet 1 is used for such a product, the air permeability is good and the body fluid diffusibility is excellent compared to the case of using other wiping sheets.
  • the front surface layer 2 and the back surface layer 3 constituting the wiping sheet 1 are bonded to each other by a binder such as an adhesive, a mechanical entanglement method such as a needle punch entanglement method, a fluid entanglement method (a hydroentanglement method, an air entanglement method), or the like.
  • a binder such as an adhesive, a mechanical entanglement method such as a needle punch entanglement method, a fluid entanglement method (a hydroentanglement method, an air entanglement method), or the like.
  • a binder such as an adhesive, a mechanical entanglement method such as a needle punch entanglement method, a fluid entanglement method (a hydroentanglement method, an air entanglement method), or the like.
  • these can be integrally laminated by various known methods, and are preferably integrated by the hydroentanglement method.
  • the wiping sheet 1 can be formed in the form of a binder nonwoven fabric by adhering both layers
  • the wiped sheets are not hardened by the use of the binder, and the entire laminated fiber webs are entangled more precisely and uniformly.
  • seat 1 is not formed by the fluid entanglement method, in order to shape the back surface layer 3 in uneven
  • FIG. 5 is a side view schematically showing main parts in the manufacturing process of the wiping sheet 1. The main part in the manufacturing process will be described with reference to FIG. 5.
  • a first web 71 (upper layer) for forming the surface layer 2 and a second web (lower layer) 72 for forming the back surface layer 3 are formed.
  • the laminated composite web 73 is conveyed in the machine direction MD under the action of jetting high-pressure water.
  • the composite web 73 is optionally supplied with a water film from a tank 74 to stabilize the form, and then guided to an endless belt-like mesh screen 75 as an opening support.
  • the suction is applied from below the mesh screen 75 to drain the water, and a high-pressure water flow is jetted from a nozzle 77 provided with a plurality of orifices having a predetermined diameter and pitch from above.
  • a plurality of nozzles 77 are arranged in the direction intersecting the machine direction MD.
  • the mesh screen 75 is formed by plain weaving a plurality of stainless steel wires crossing each other, for example, a warp wire 75a and a weft wire 75b orthogonal to each other, and the plurality of openings and the wires 75a and 75b are connected to each other. And a plurality of knuckle portions 78 intersecting each other.
  • a high-pressure water flow may be injected to the second web 72 side, or a high-pressure water flow may be injected from both sides of the first web 71 side and the second web 72 side. Good.
  • a high-pressure water flow process may be performed on one side or both sides. In the knuckle portion 78, the warp wire 75a and the weft wire 75b overlap each other so as to protrude toward the composite web 73.
  • the fibers of the first web 71 and the fibers of the second web 72 are entangled by such high-pressure water flow treatment, and the second web 72 is formed on the mesh screen 75.
  • the fibers located on the knuckle part 78 are moved by the action of jetting of the high-pressure water stream, so that they are rearranged in the knuckle part 78 and the opening 80 where no fiber is present is formed.
  • the second web 72 is formed with a plurality of groove portions 82 that are aligned in the cross direction and extend in the machine direction MD by the high-pressure water flow ejected from the plurality of nozzles 77 that are aligned in the cross direction.
  • a portion 81 is formed.
  • the plurality of flange portions 81 and the groove portions 82 are alternately arranged in the second direction Y, and the openings 80 are spaced apart from each other by a predetermined dimension in the first direction X (crossing direction) in the groove portion 82.
  • a hole array is formed.
  • the first web 71 to which the high-pressure water stream is directly jetted has a relatively small fiber gap, and the jet treatment is performed in a state where the long fibers 4 made of ultrafine fibers such as nylon are randomly arranged and the fibers can move. Therefore, unlike the second web 72, the plurality of apertures 80 are not formed by being unevenly formed, and the long fibers 4 are irregularly arced and uniformly spread in a mesh shape.
  • the long fibers 4 are mainly entangled with each other to form a sheet, but some of them may be fused.
  • the treatment is preferably performed at a relatively low water pressure.
  • the water pressure is increased from a nozzle 77 in which orifices having a hole diameter of 0.1 to 0.5 mm are arranged at intervals of 0.2 to 2.0 mm.
  • a columnar water flow of 1 to 8 MPa is preferably jetted onto the composite web 73.
  • the long fibers 4 in the first web 71 may be oriented in the machine direction MD depending on the manufacturing method (for example, melt blown method). However, when the long fibers 4 are entangled with each other while being randomly distributed, the long fibers 4 are irregularly distributed. It becomes easier to form a network structure that spreads uniformly in a mesh shape by drawing an arc.
  • the long fibers 4 and the short fibers 5 are entangled with each other at the ridge portion 81 of the back surface layer 3, and at least a part of the long fibers 4 has a large number of openings 80 in the groove portion 82 of the back surface layer 3. I straddle some of them.
  • the wiping sheet 1 having such a laminated structure is a sheet for wiping off cosmetic powder particles such as sebum and ceramic adhering to the skin using the surface 1a as the first wiping surface in a dry state and a wet state, for example, a wet tissue It can be used as a sheet for wiping makeup, a covering sheet for makeup pads, and the like.
  • the ultrafine long fibers 4 are spread uniformly in a mesh shape, the edge of the mesh which is the periphery of the mesh when pressed against the face. By the edge effect, the long fibers 4 forming the pores can scrape cosmetic powder, sebum, etc. and take it into the mesh, and the surface layer 2 can perform a brushing function.
  • an ultrafine fiber obtained by splitting a split composite fiber can be used as the fiber constituting the surface layer 2, but in that case, the ultrafine fiber generated by splitting is used.
  • the surface of the skin may irritate the skin when it rubs against the skin.
  • the use of long fibers 4 made of non-divided ultrafine fibers such as nylon for the surface layer 2 can eliminate such irritation to the skin.
  • the long fiber 4 does not have a fiber end on the surface 1a unless it is cut
  • the back surface 1b can also function as a second wiping surface. That is, when the back surface 1b has a flat shape with no openings and irregularities, when the user uses the back surface 1b as a wiping surface on the skin, dirt such as cosmetic powder and dust is not captured and is sufficiently soiled. Can not be wiped off.
  • the wiping sheet 1 since the plurality of apertures 80 are formed in the back surface layer 3, the back surface 1 b is not flat.
  • the user can use the wiping sheet 1 by freely selecting either the front surface 1a or the back surface 1b as the wiping surface.
  • the back surface 1b side does not have to be flat, and the back surface layer 3 does not necessarily have a concavo-convex shape by the plurality of flange portions 81 and the groove portions 82. May be.
  • FIG. 6 is a perspective view of a makeup pad 10 including a cushion layer (filling) 20 formed from an absorbent fiber and a covering sheet 21 that covers the cushion layer 20 and is based on the wiping sheet 1.
  • FIG. 7 is a sectional view taken along line VII-VII in FIG.
  • the covering sheet 21 is located on the skin contact surface, the non-skin contact surface, and the skin contact surface side, and corresponds to the outer layer 24 corresponding to the surface layer 2 of the wiping sheet 1 and the back surface layer 3.
  • the inner layer 23 is provided to the outer layer 24 corresponding to the surface layer 2 of the wiping sheet 1 and the back surface layer 3.
  • the low-hygroscopic long fibers 4 in the outer layer 24 divide into an irregular arc and spread in a mesh shape.
  • a substantially uniform liquid film in which the liquid spreads uniformly on the skin contact surface of the makeup pad 10 is formed. Therefore, when the makeup pad 10 is impregnated with a liquid cleansing agent to wipe off the dirt on the skin, the liquid cleansing agent can be uniformly permeated into the skin to wipe off the dirt on the entire skin.
  • the cosmetic pad 10 impregnated with a relatively large amount of cosmetic liquid is used as a cosmetic pack sheet, the cosmetic liquid penetrates the entire skin contact surface evenly, and thus has good stickiness to the skin. Can be demonstrated.
  • the surface layer 2 retains liquid such as cosmetic liquid as compared with the case where the brushing function is excellent and the fiber gap is relatively large or the plurality of apertures 80 are formed as in the back layer 3.
  • the property liquid residual property
  • the long fibers 4 are composed of hygroscopic fibers with relatively low water absorption, the liquid enters the fiber gap without being absorbed by the fibers, and is stable on the surface layer 2 for a certain time by surface tension. Retained.
  • the cosmetic liquid is not instantaneously absorbed by the inner layer 23 or the cushion layer 20, and the outer layer 24 is in a wet state for a certain time. Therefore, in the surface layer 2, the cosmetic liquid does not penetrate into the inside of the skin layer until it is impregnated with the cosmetic liquid and applied to the face, and the skin contact surface does not become dry. Further, the long fibers 4 in the surface layer 2 form an irregular arc and spread in a mesh shape, and thus straddle the openings 80 in the back surface layer 3, and a mesh is also formed above the openings 80. Thereby, the cosmetic liquid impregnated in the surface layer 2 does not move directly from the opening 80 to the cushion layer 20, and the excellent liquid remaining property as described above can be exhibited.
  • the wiping sheet 1 is formed only from the ultrafine fibers 4, although the wiping property is excellent, there is a risk that the squeeze is weak and the sheet strength is low, but the surface layer 2 has an average fiber diameter larger than that of the long fibers 4.
  • the wiping sheet 1 has moderate strength and sheet strength. Therefore, the wiping sheet 1 can be prevented from being largely deformed in the dry state and the wet state, and the surface layer 2 can be swung, and a stable wiping operation can be performed.
  • the back surface layer 3 has a concavo-convex shape formed from a plurality of flange portions 81 and groove portions 82, the bending rigidity in the sheet strength of the wiping sheet 1 is improved as compared with the case where it is flat, The impregnated liquid can be moved quickly.
  • the wiping sheet 1 when used for the covering sheet 21 of the makeup pad 10, the long fibers 4 spread in a mesh shape on the skin contact surface, so that dirt or the like entering the pores can be scraped off, When the cosmetic liquid is impregnated from the skin contact surface side, a liquid film that uniformly spreads is formed, and the skin can be wiped off evenly.
  • the inner layer 23 has a concavo-convex structure including a plurality of flange portions 81 and groove portions 82, a moderate scouring strength is imparted and the wiping operation is stably performed, and the cosmetic liquid that has moved to the inner layer 23, etc. Can be diffused along the groove 82 throughout the sheet, and can be quickly absorbed by the cushion layer 20 through the plurality of apertures 80.
  • FIG. 8A is a perspective view of a container 91 for refilling a wet sheet (wet tissue) 90 using the wiping sheet 1 as a base material
  • FIG. 8B is a plurality of wet sheets 90 accommodated in the container 91. It is a typical partial side view of the laminated body which is in a lamination
  • the container 91 has a take-out port 93 that can be opened and closed, and is accommodated as a laminate in which wet sheets 90 folded in a Z-shape and an inverted Z-shape are alternately overlapped.
  • a part of the wet sheet 90 a located at the uppermost part of the laminated body protrudes from the take-out port 93.
  • the wet sheet 90 a is separated from the overlapping wet sheet 90 b and pulled out of the container 91, and a part of the wet sheet 92 b protrudes from the takeout port 93.
  • the wiping property is excellent due to the network structure of the long fibers 4 in the surface layer 2, and the moderate stiffness and shape retention by the back surface layer 3 are also achieved. Yes, the wiping operation can be performed stably.
  • the wet sheet 90 is accommodated in the container 91 in a state where a predetermined amount of wet components such as water and alcohol are held in advance because the back layer 3 is mainly composed of water-absorbing short fibers 5 such as rayon.
  • the plurality of apertures 80 are provided, the air permeability in the thickness direction is excellent, so that no air pool is generated between the wet sheets 90 overlapping in a wet state.
  • the back surface layer 3 of the wet sheet 90a to be pulled out and the wet sheet to be pulled out next.
  • the back surface layer 3 of 90b is opposed to and in contact with each other.
  • the back surface 1b is not smooth due to the formation of the plurality of apertures 80 in the back surface layer 3, so the wet sheet 90a to be pulled out
  • the wet sheet 90b to be pulled out next is caught, and a part of the wet sheet 90b can be reliably protruded from the take-out port 93.
  • the front surface layer 2 and / or the back surface layer 3 in the wiping sheet 1 of the present invention may be formed of a plurality of layers instead of a single layer, and particularly when the use in a wet state is planned, the sheet strength is improved. Therefore, it may have a multilayer structure.
  • the front surface layer 2 and the back surface layer 3 are each used as the back surface layer 3 between the fiber webs used as the front surface layer 2 in the illustrated example in addition to the two-layer structure.
  • a single layer of the back surface layer 3 or the surface layer 2 may be laminated on the surface layer 2 / back surface layer 3 having a two-layer structure with a fiber web interposed therebetween.
  • the wiping sheet 1 is compared with the case where the content is less than about 60%.
  • the number of contact points with the object using it increases, and the touch and the adhesion are excellent.
  • the long fiber 4 may be a fiber aggregate (tow) formed by agglomerating a plurality of single fibers into a bundle in addition to those dispersed in a single fiber state.
  • the long fibers 4 are aggregated in a bundle shape, large bundles can be captured by the bundle, and the ultrafine long fibers 4 forming the bundle enter the pores and scrape the small pieces of dirt into the bundle. Since it can collect, wiping property improves.
  • the makeup pad 10 includes a first direction S and a second direction R that intersect each other, and a first surface 11. And the second surface 12 located on the opposite side, both side edges 13 and 14 extending in the first direction S, both end edges 15 and 16 extending in the second direction R, and the first ends separated from each other in the first direction S. A first end portion 17 and a second end portion 18; and an intermediate portion 19 located between the first and second end portions 17 and 18. In the intermediate portion 19, the width in the second direction R is constant, and in the first and second end portions 17, 18, the dimensions in the second direction R become smaller toward the edges 15, 16, respectively.
  • the edges 13 and 14 are inclined.
  • the covering sheet 21 is overlapped so as to wrap the cushion layer 20, and in order to maintain such a stacked state, the stacked portions at the joint portions 45 and 46 along both side edges are joined to each other.
  • an openable / closable pocket 50 having an opening edge 51 extending in the second direction R is formed between the joint portions 45 and 46.
  • the dimension L1 of the decorative pad 10 in the first direction S is about 45 to 65 mm
  • the dimension in the second direction R is about 65 to 85 mm
  • the dimension of the intermediate portion 19 in the first direction S is the first and second ends. It is larger than the dimension in the 1st direction S of the parts 17 and 18.
  • the mass of the cushion layer 20 in the decorative pad 10 is preferably about 0.2 to 0.4 g.
  • the cushion layer 20 preferably has a mass per unit area in the intermediate portion 19 smaller than that in the first and second end portions 17 and 18.
  • the mass per unit area of the first and second end portions 17 and 18 of the cushion layer 20 can be substantially the same or different.
  • the first and second end portions 17 are the same.
  • 18 are approximately equal in mass per unit area.
  • a finger can be inserted into the pocket 50 from the opening edge portion 51 and the makeup pad.
  • flexibility of the edge part (1st edge part 17) in the side which inserts a finger can be improved, and it can be made into the soft touch.
  • the cushion layer 20 is a fiber assembly mainly composed of hydrophilic fibers, and hydrophobic fibers may be mixed in the fiber assembly as long as the required water absorption of the cushion layer 20 is not inhibited. Specifically, it contains about 80% by mass or more of hydrophilic fibers.
  • hydrophilic fiber for example, rayon fiber, cotton fiber, acrylic fiber or the like can be used.
  • hydrophobic fiber for example, a synthetic fiber formed of a synthetic resin such as polyethylene, polyester, or polypropylene, or a synthetic fiber composite fiber formed of these synthetic resins can be used.
  • the cushion layer 20 is formed of a fiber assembly mainly composed of rayon fibers. When rayon fiber is used as the hydrophilic fiber, it is possible to increase water separation when impregnating the skin lotion and using cotton fiber.
  • the fiber forming the outer layer 24 is the long fiber 4, and when the fiber length is relatively large, for example, when it is larger than the dimension in the first direction S and / or the second direction R of the decorative pad 10 There are no fiber end portions on the first and second surfaces 11 and 12.
  • the outer layer 24 is formed of the short fibers 5 in which the end portions of the fibers are present on the first and second surfaces 11 and 12, when using the makeup pad 10, the end portions may strike the skin and cause irritation.
  • short fibers are used by using the long fibers 4 that are continuous on the first and second surfaces 11 and 12 so that the end portions do not exist except for the outer peripheral edge of the decorative pad 10. Compared with the case, it can improve the touch.
  • the joint portions 44 are formed on the inner sides of the side edges 13 and 14 of the makeup pad 10, which is a cutting line of the covering sheet 21.
  • the end portion of the long fiber 4 does not exist in the cosmetic liquid application region defined by the two end edges 15 and 16, and a good touch can be obtained.
  • the inner layer 23 includes a hydrophobic thermoplastic fiber
  • the hygroscopicity / water absorption of the inner layer 23 decreases, so that the action of drawing the cosmetic liquid or the like held in the outer layer 24 is suppressed, and the skin contact surface side
  • the liquid remaining property can be further improved.
  • the covering sheets 21 laminated at the joining portions 45 and 46 are joined by embossing / debossing by heat or ultrasonic waves, preferably when joining while fusing, the inner layer 23 and the outer layer facing each other.
  • the inner layer 23 of 24 is a non-meltable rayon fiber
  • the bonding strength may be lowered.
  • Wiping sheet thickness 0.25 mm, mass per unit area 30 g / m 2
  • Surface layer thickness 0.09 mm, mass per unit area 10 g / m 2
  • Meltblown nonwoven fabric nylon 6: 100% by mass
  • Back layer thickness 0.16 mm, mass per unit area 20 g / m 2
  • Spunlace nonwoven fabric short fiber: rayon; 80% by mass, Heat-fusible fiber; 20% by mass
  • Wiping sheet thickness 0.25 mm, mass per unit area 30 g / m 2
  • Surface layer thickness 0.09 mm, mass per unit area 10 g / m 2
  • Meltblown nonwoven fabric nylon 6: 100% by mass
  • Back layer thickness 0.16 mm, mass per unit area 20 g / m 2
  • Rayon fiber rayon: 100% by mass
  • Short fiber rayon average fiber diameter 15 ⁇ m
  • Wipe sheet (single layer): thickness 0.27 mm, mass per unit area 30 g / m 2 , Meltblown nonwoven fabric (nylon 6: 100% by mass), Average fiber diameter of long fiber 4 ⁇ m
  • Wipe sheet (single layer): thickness 0.25 mm, mass per unit area 30 g / m 2 , Spunlace nonwoven fabric (cotton: 100% by mass), Average fiber diameter 15 ⁇ m
  • Wipe sheet (single layer): thickness 0.25 mm, mass per unit area 30 g / m 2 , Spunlace nonwoven fabric (rayon: 100% by mass), Average fiber diameter 15 ⁇ m
  • the measurement method for each measurement item shown in Table 1 and the evaluation criteria for each test item are as follows. The results of each test were evaluated as A (excellent), B (good), C (normal), and D (bad).
  • ⁇ Measurement method of surface characteristics The measurement of the surface characteristics was carried out using a KES-FB4 manufactured by Kato Tech Co., Ltd., using a sample of the 1.0 cm ⁇ 1.0 cm range in the cosmetic application region of each sample, and the surface of the sample was made of metal It was mounted on the test stand and measured. For the measurement of the surface roughness, a load of 10 gf was applied on the surface of the sample, and a contact terminal having a width of 0.5 cm in which a 0.5 mm diameter piano wire was wound in a coil shape was used.
  • the contact surface of the contactor was crimped to the sample by applying a force of 50 gf to the contactor in which ten piano wires having a diameter of 0.5 mm were arranged.
  • the sample was moved 2 cm horizontally at a speed of 0.1 cm / sec, and a uniaxial tension of 20 gf / cm was applied to the sample. The characteristic value was measured for each of the first direction X and the second direction Y of each sample, and the average was obtained.
  • ⁇ Evaluation criteria 1. Average surface friction coefficient (MIU) A: 0.25 or more B: 0.20 or more, less than 0.25 C: 0.15 or more, less than 0.20 D: Other 2. Mean deviation of surface friction coefficient (MMD) A: 0.0080 or less B: Over 0.0080, 0.0090 or less C: Over 0.0090, 0.0100 or less D: Over 0.0100 3.
  • SMD Surface roughness average deviation
  • ⁇ Wipe test> A cosmetic (foundation) wiping test was performed using the wiping sheet 1 of the present invention and the wiping sheet of the comparative example.
  • a friction wear measuring apparatus TL201Ts manufactured by Trinity Lab Co., Ltd. was used as a test apparatus.
  • seat 1 of the comparative example which are samples were tested in the state which has not applied liquids, such as cosmetic liquid.
  • 0.02 g of cosmetics was applied in a circular shape with a diameter of 13 mm on a surface of a rectangular slide glass having a width of 26 mm and a length of 90 mm, centering on a position 20 mm from the edge in the length direction, to obtain a test piece. .
  • the test piece after 40 minutes have passed after applying the cosmetics by sandwiching the wiping sheet 1 as a sample with a pad-dedicated jig (depth: 20 mm, width: 70 mm) of the test apparatus so that the surface 1a is an exposed surface.
  • the end of the test piece was moved at a moving speed of 2.5 mm / s while applying a certain load to the dedicated jig (100 g load with respect to the area 5.2 cm 2 of the wiping sheet 1 in contact with the test piece).
  • the cosmetic product was wiped off while moving 60 mm from the edge.
  • a foundation for example, containing preservatives, sea surface active agents, ultraviolet absorbers, tar dyes, artificial fragrances, etc.
  • a foundation for example, containing preservatives, sea surface active agents, ultraviolet absorbers, tar dyes, artificial fragrances, etc.
  • the surface of the test piece after wiping off the cosmetics is read with a scanner (GT-X750, manufactured by Seiko Epson Corporation), and then the image is read using image software (Adobe Photoshop Elements 3.0), and Histgram Analysis software is used.
  • a histogram processing was performed using the binarization processing.
  • the value of the binarization treatment of the test piece before wiping off the cosmetic product was set to 100, the value of the binarization treatment of the test piece after wiping off was shown as a ratio, and the wiping rate was obtained.
  • a wet sheet is prepared by infiltrating each wiping sheet having a size of 12 cm ⁇ 12 cm with 3 mass times distilled water to the sheet, and 10 female panelists wipe off the foundation applied to the face with each wet sheet.
  • the “softness”, “smoothness”, and “wiping feeling” of the wet sheet were evaluated in four stages. 1. Softness A: soft B: soft soft C: can't say either D: not soft 3.
  • a feeling of slimness A A feeling of slimness B: A feeling of slimness C: A feeling of slimness D: There is no feeling of slimness A feeling of wiping A: There is a feeling of wiping B: There is a feeling of wiping slightly C: Neither can be said D: There is no feeling of wiping
  • the average surface friction coefficient (MIU) is 0.25 or more, and the average deviation (MMD) value of the surface friction coefficient is The average deviation (SMD) [unit: ⁇ m] of the surface roughness was 0.008 or less.
  • the wipe sheet of Comparative Example 1 has MIU of 0.25 or less, MMD of 0.008 or less, and SMD of 5.0 or less.
  • the wipe sheet of Comparative Example 2 has MIU of less than 0.20 and MMD.
  • the wiping sheet of Comparative Example 3 had an MIU of less than 0.20, an MMD of more than 0.100, and an SMD of 5.0 or less.
  • the wiping sheet 1 of Examples 1 and 2 and the wiping sheet of Comparative Example 1 each have a wiping rate of 90% or more, and a high wiping rate exceeding 90% without applying the cosmetic liquid. Indicated. On the other hand, in the wiping sheets of Comparative Examples 2 and 3, the wiping rate was less than 80%.
  • the wiping sheets 1 of Examples 1 and 2 are relatively smooth on the surface 1a side because the long fibers 4 have an irregular arc on the surface 1a side and spread in a mesh shape. And when liquids, such as a cosmetic liquid, are supplied to the surface 1a side, a liquid can spread uniformly on the whole surface 1a, and can form a uniform liquid film. Moreover, since the wiping sheet 1 of Examples 1 and 2 includes the long fibers 4 made of ultrafine fibers, a plurality of small edge portions are formed on the surface 1a side, and has a relatively high frictional resistance. It is excellent in handling properties and can be wiped off so as to scrape out fine dirt that has entered the pores.
  • the wiping sheet 1 of Examples 1 and 2 has the surface 1a formed from the long fibers 4 made of ultrafine fibers, is relatively smooth, and has a relatively high frictional resistance. Therefore, in the sensory evaluation, the evaluation of “softness”, “smoothness”, and “wiping feeling” was “A”, and the sheet characteristics of the wiping sheet 1 were actually confirmed as a feeling of use.
  • the wiping sheets of Comparative Examples 1 to 3 have a relatively uneven surface and relatively low frictional resistance, so that a uniform liquid film is formed as in Examples 1 and 2, No brushing function was exhibited, and none of the sensory evaluation items had an evaluation of “A”.
  • the material constituting the wiping sheet 1 according to the present invention in addition to the materials described in the specification, various known materials usually used in this type of article can be used without limitation.
  • the terms “first”, “second”, and “third” are used to simply distinguish similar elements, positions, and the like.
  • a first layer and a second direction intersecting the first surface a surface layer mainly composed of hygroscopic long fibers having an average fiber diameter of 10 ⁇ m or less, and a back layer mainly composed of short fibers having an average fiber diameter of more than 10 ⁇ m
  • the long fibers are irregularly arced in the surface layer and uniformly spread in a mesh shape, and a plurality of apertures arranged in the first direction are formed in the back surface layer.
  • the long fibers straddle at least a part of the apertures.
  • the present invention disclosed in the above paragraph 0063 can include at least the following embodiments.
  • the back surface layer further includes a plurality of grooves and a plurality of flanges extending in the first direction, and the grooves and the flanges are alternately arranged in the second direction, and the plurality of openings A hole is formed in the groove.
  • the density of the surface layer is 0.05 to 0.2 g / cm 3 , and the thickness dimension of the surface layer is about 20 to 60% of the thickness dimension of the back surface layer.
  • the wiping rate of the surface layer in the dry state is at least 80%.
  • the average surface friction coefficient (MIU) of the surface is 0.25 or more, and the average deviation (SMD) of the surface roughness is 4.0 ⁇ m or less.
  • the long fiber is nylon.
  • the short fiber is a fiber having higher hygroscopicity than the long fiber.
  • the short fiber is at least one of cellulosic fibers including rayon and cotton.
  • the spunlace nonwoven fabric in which the front surface layer and the back surface layer are integrated by a hydroentanglement method.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Body Washing Hand Wipes And Brushes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Laminated Bodies (AREA)
  • Cosmetics (AREA)

Abstract

La présente invention concerne une feuille d'essuyage qui présente une bonne texture côté surface et qui peut exercer des performances d'essuyage à la fois sur le côté de la surface avant et sur le côté de la surface arrière. Ladite feuille d'essuyage (1) comprend une couche de surface avant (2) qui est composée principalement de fibres longues (4) de diamètre moyen de fibre inférieur ou égal à 10 µm et qui présente une capacité d'absorption de l'humidité, et une couche de surface arrière (3) qui est composée principalement de fibres courtes (5) de diamètre moyen de fibre supérieur à 10 µm, les fibres longues (4) étant dispersées de manière uniforme selon une forme de type filet formant des arcs de façon irrégulière sur la couche de surface avant (2), de multiples ouvertures (80) disposées dans la première direction (X) étant formées dans la couche de surface arrière (3), et les fibres longues (4) se croisant au moins au niveau de certaines des ouvertures (80).
PCT/JP2016/051306 2015-02-17 2016-01-18 Feuille d'essuyage WO2016132790A1 (fr)

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BR112017014613-4A BR112017014613B1 (pt) 2015-02-17 2016-01-18 Folha de limpeza
CN201680005661.0A CN107105869B (zh) 2015-02-17 2016-01-18 擦拭片
KR1020177016975A KR102449531B1 (ko) 2015-02-17 2016-01-18 와이핑 시트
PH12017501163A PH12017501163A1 (en) 2015-02-17 2017-06-20 Wiping sheet

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JP2015029068A JP6429664B2 (ja) 2015-02-17 2015-02-17 拭き取りシート
JP2015-029068 2015-02-17

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MY (1) MY180038A (fr)
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WO2019185161A1 (fr) * 2018-03-29 2019-10-03 L'oreal Article tel qu'une houppette
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JP6542458B1 (ja) * 2018-09-28 2019-07-10 ユニ・チャーム株式会社 化粧用シート
CN113795323B (zh) * 2019-05-13 2023-11-28 东洋纺Mc株式会社 过滤器用滤材及过滤器
JP7474035B2 (ja) * 2019-08-30 2024-04-24 大王製紙株式会社 拭き取り用シートの製造方法
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PH12017501163B1 (en) 2017-12-11
KR20170117022A (ko) 2017-10-20
MY180038A (en) 2020-11-20
KR102449531B1 (ko) 2022-09-29
BR112017014613A2 (pt) 2018-02-06
TWI683046B (zh) 2020-01-21
PH12017501163A1 (en) 2017-12-11
TW201702447A (zh) 2017-01-16
BR112017014613B1 (pt) 2022-07-26

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