WO2024021441A1 - 一种表面具有条纹凸起的无纺布及其吸收制品 - Google Patents

一种表面具有条纹凸起的无纺布及其吸收制品 Download PDF

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Publication number
WO2024021441A1
WO2024021441A1 PCT/CN2022/138962 CN2022138962W WO2024021441A1 WO 2024021441 A1 WO2024021441 A1 WO 2024021441A1 CN 2022138962 W CN2022138962 W CN 2022138962W WO 2024021441 A1 WO2024021441 A1 WO 2024021441A1
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WO
WIPO (PCT)
Prior art keywords
woven fabric
protrusions
striped
striped protrusions
layer
Prior art date
Application number
PCT/CN2022/138962
Other languages
English (en)
French (fr)
Inventor
谢继权
蔡吉祥
盘建华
武丹聘
Original Assignee
厦门延江新材料股份有限公司
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Application filed by 厦门延江新材料股份有限公司 filed Critical 厦门延江新材料股份有限公司
Publication of WO2024021441A1 publication Critical patent/WO2024021441A1/zh

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Classifications

    • 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
    • D04H1/492—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 by fluid jet
    • 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
    • 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
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • 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
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4752—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier
    • 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
    • A61F13/51121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
    • 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
    • D04H1/492—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 by fluid jet
    • D04H1/495—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 by fluid jet for formation of patterns, e.g. drilling or rearrangement
    • 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
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—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 by welding together the fibres, e.g. by partially melting or dissolving the fibres being within 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
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/022—Lofty fabric with variably spaced front and back plies, e.g. spacer fabrics
    • D10B2403/0221—Lofty fabric with variably spaced front and back plies, e.g. spacer fabrics with at least one corrugated ply
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/022—Lofty fabric with variably spaced front and back plies, e.g. spacer fabrics
    • D10B2403/0223—Lofty fabric with variably spaced front and back plies, e.g. spacer fabrics with apertures, e.g. with one or more mesh fabric plies
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2509/00—Medical; Hygiene
    • D10B2509/02—Bandages, dressings or absorbent pads
    • D10B2509/026—Absorbent pads; Tampons; Laundry; Towels

Definitions

  • the present invention relates to the field of non-woven fabrics, and in particular to a soft, dry non-woven fabric with striped protrusions on the surface used in personal care and infant care and absorbent products.
  • non-woven fabrics are soft and skin-friendly, they are widely used as the surface layer of disposable sanitary products and have attracted much attention from consumers.
  • consumers' demands for sanitary products have increased, consumers have begun to be dissatisfied with the existing flat non-woven fabrics. Subsequently, perforated non-woven fabrics have appeared to increase the permeability.
  • the openings on the surface can effectively increase the permeability of body fluids. Quickly guide body fluids to the absorbent layer to increase the dryness of the hygienic surface layer.
  • the invention patent discloses a three-dimensional non-woven fabric with an open hole structure, which is distributed with convex areas, concave areas and open hole structures.
  • the convex part and the open part have a height difference of more than 0.2mm, so even if there is liquid returning to the surface of the concave part, it comes into contact with the user's skin. It is only in contact with the raised part, and the user will not feel wet.
  • the open part accelerates the penetration of liquid and reduces residue, which has the effect of fast penetration, dryness and comfort.
  • the raised part and the opening part are not arranged properly, and the raised part can easily cause liquid leakage or liquid residue.
  • the purpose of the present invention is to provide a soft, dry non-woven fabric with striped ridges on the surface and an absorbent product thereof, so as to overcome the defects of existing products.
  • the solution of the present invention is: a non-woven fabric with striped protrusions on the surface.
  • the surface of the non-woven fabric has several longitudinally extending and transversely distributed striped protrusions.
  • the striped protrusions are The height is 0.5 mm to 3.0 mm.
  • the opening area formed between adjacent striped protrusions has multiple openings, and the average area of a single opening is less than 20 mm 2 .
  • the non-woven fabric is a composite non-woven fabric composed of a surface layer and a bottom layer.
  • the striped protrusions are located on the surface layer of the composite non-woven fabric.
  • the non-woven fabric is air-through non-woven fabric, spunbond non-woven fabric, spunlace non-woven fabric or hot-rolled non-woven fabric.
  • the stripe protrusions are longitudinally continuous stripe protrusions or longitudinally discontinuous stripe protrusions.
  • the stripe protrusions are solid stripe protrusions or hollow stripe protrusions.
  • the opening area has a plurality of protrusions.
  • An absorbent article containing a non-woven fabric with striped protrusions on the surface including a liquid-permeable surface layer, an absorbent layer and a breathable bottom layer.
  • the absorbent layer is disposed between the liquid-permeable surface layer and the breathable bottom layer.
  • the liquid-permeable bottom layer of the absorbent article is The surface layer is made of non-woven fabric with striped protrusions on the surface.
  • the surface of the non-woven fabric of the present invention has striped protrusions.
  • the striped protrusions When applied to the surface layer of absorbent products, the striped protrusions not only reduce the contact area between the surface layer of the absorbent product and the human body, but also can create a barrier between the human body and the absorbent product.
  • An air flow isolation layer is formed in between, effectively preventing skin adhesion, giving people a soft and comfortable feeling, and the longitudinal stripe bulges can guide body fluids in the longitudinal direction of the absorbent product, expand the penetration area of body fluids, speed up the penetration of body fluids, and can also It effectively prevents side leakage of body fluids; and the open area between adjacent striped ridges can accelerate the penetration of body fluids and quickly be absorbed by the core through the openings, improving the drying performance of the non-woven fabric.
  • Figure 1 is a schematic plan view of a non-woven fabric with striped protrusions on its surface in Example 1 of the present invention.
  • Figure 2 is a schematic O-O’ cross-sectional view of the non-woven fabric with striped protrusions on the surface in Example 1 of the present invention.
  • Figure 3 is a schematic plan view of a non-woven fabric with striped protrusions on its surface in Example 2 of the present invention.
  • Figure 4 is a schematic P-P’ cross-sectional view of the non-woven fabric with striped protrusions on the surface in Example 2 of the present invention.
  • Figure 5 is a schematic plan view of the sanitary absorbent article in Embodiment 3 of the present invention.
  • Non-woven fabrics with striped ridges on the surface 4 Absorbent articles.
  • the non-woven fabric 1 with striped protrusions on the surface of this embodiment has several longitudinally extending and transversely distributed striped protrusions a1, and between adjacent striped protrusions a1 there are An opening area composed of multiple openings b1.
  • the non-woven fabric 1 with striped protrusions on the surface is a single-layer hot air non-woven fabric.
  • the striped protrusions a1 are solid continuous striped protrusions.
  • the protrusion height is 0.5-3.0mm. It is too high and the comfort is poor. It is too low. , cannot block body fluids.
  • the height of the stripe protrusion a1 is 0.8mm
  • the width of the adjacent stripe protrusion is 0.5-8mm
  • the average opening area of a single opening in the opening area can be is less than 20mm 2
  • the average opening area of a single opening b1 in this embodiment is 15mm 2 .
  • the surface of the non-woven fabric in this embodiment has striped protrusions a1.
  • the striped protrusions a1 are continuous solid protrusions.
  • the protruding parts are not easy to collapse, and the longitudinal stripes are
  • the protrusions a1 can guide body fluids in the longitudinal direction of the absorbent article, expand the penetration area of body fluids, speed up the penetration of body fluids, and can also effectively prevent side leakage of body fluids;
  • the distribution between adjacent striped protrusions a1 can be Equidistant distribution, or unequal distribution, can be adjusted according to the width of the absorbent product.
  • the open area between adjacent striped protrusions a1 can accelerate the penetration of body fluids and quickly be absorbed by the core through the openings b1, improving the drying performance of the non-woven fabric.
  • the non-woven fabric 2 of this embodiment has striped protrusions on its surface.
  • the surface has several longitudinally extending and transversely distributed striped protrusions a2.
  • the opening area consists of openings b2.
  • the non-woven fabric 2 with raised stripes on the surface is a composite non-woven fabric composed of a surface layer 21 and a bottom layer 22.
  • the surface layer 21 is a spunlace non-woven fabric and the bottom layer 22 is an air-through non-woven fabric with raised stripes.
  • a2 is a hollow intermittent stripe protrusion with a protrusion height of 0.5-3.0mm.
  • the protrusion height of stripe protrusion a2 is 2.5mm.
  • the average opening area of a single opening in the opening area can be less than 20mm 2 , the average opening area of a single opening b2 in this embodiment is 10mm 2 .
  • the stripe protrusions a2 in this embodiment are hollow intermittent stripe protrusions.
  • the surface layer 21 and the bottom layer 22 form a raised hollow structure, which can form a breathable channel and provide internal and external circulation of air flow. , reducing the feeling of dampness and stuffiness; the skin-friendly properties of the spunlaced non-woven fabric on the surface layer 21 can increase the softness and comfort of the overall non-woven fabric, while the supporting role of the bottom layer 22 can prevent the convex parts from being squeezed, and prevent channel blockage and collapse.
  • the striped protrusions a2 can also guide body fluids in the longitudinal direction of the absorbent product, expand the penetration area of body fluids, accelerate the penetration rate of body fluids, and effectively prevent side leakage of body fluids.
  • an absorbent article 4 in this embodiment includes a non-woven fabric 3 with striped ridges on the surface, including a liquid-permeable surface layer, an absorbent layer and a breathable bottom layer.
  • the absorbent layer is provided on the liquid-permeable surface.
  • the liquid-permeable surface layer of the absorbent article is made of non-woven fabric 3 with striped ridges on the surface.
  • the middle area of the absorbent article is the permeable area, which is mainly used to contact the human body and absorb body fluids. ;
  • the areas on both sides are the wing parts of the absorbent product, which are mainly used to fix the absorbent product.
  • the stripe protrusions a3 of the non-woven fabric with stripe protrusions on the surface are located on both sides of the penetration area of the absorbent article 4, forming a three-dimensional retaining wall to effectively prevent side leakage of body fluids, and the penetration area of the absorbent article can contain multiple stripe protrusions a3 , which can not only prevent side leakage, but also conduct longitudinal flow, expand the longitudinal penetration area of body fluids, and increase the effective utilization area of absorbent products.
  • the middle penetration area of the absorbent article 4 is an open area composed of multiple openings b3 and protrusions c3 located between adjacent striped protrusions 3.
  • the openings b3 can accelerate the penetration of body fluids into the absorbent layer and increase penetration. Speed, and raised c3 can reduce the contact area between the absorbent product and the human body, prevent adhesion to the skin, and further improve dryness.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

本发明公开了一种表面具有条纹凸起的无纺布及其吸收制品，所述的无纺布表面具有若干条纵向延伸、横向分布的条纹凸起，所述条纹凸起的高度为0.5mm～3.0mm，在相邻条纹凸起之间构成的开孔区域具有多个开孔，单个开孔的平均面积小于20mm 2，无纺布表面的纵向条纹凸起可以将体液在吸收制品的纵向上进行导流，扩大体液渗透面积，加快体液下渗速度，并且还可以有效阻挡体液发生侧漏。

Description

一种表面具有条纹凸起的无纺布及其吸收制品 技术领域
本发明涉及无纺布领域，尤其涉及应用于个人护理、婴幼儿护理用的一种柔软、干爽的表面具有条纹凸起的无纺布及其吸收制品。
 背景技术
由于无纺布柔软、亲肤，因而被广泛用于一次性卫生用品面层并备受消费者关注。随着消费者对卫生用品要求增高，消费者开始不满足现有的平面无纺布，随之出现了为了增加渗透性能的打孔无纺布，表面的开孔可以有效增加体液的渗透性能，快速将体液导流到吸收层，增加卫生面层的干爽性。发明专利CN201420140109.0 专利名称： 一种具有开孔结构的立体无纺布，该发明专利公开了一种具有开孔结构的立体无纺布，分布有凸起区域与凹陷区域及开孔结构，通过高密度纤维区域的抗压性能，保持了立体无纺布明显的凹凸效果，凸起部分和开孔部分具有大于0.2mm高度差，所以即使有液体返回凹入部分表面，与使用者皮肤接触的仅是与凸起部分接触，使用者也不会有潮湿的感觉，开孔部分加快液体的渗透和减少残留，具有渗透快，干爽舒适的效果。但凸起部分和开孔部分排列不当，凸起部分很容易引起液体滑漏或液体残留。
 技术问题
本发明的目的在于提供一种柔软、干爽的表面具有条纹凸起的无纺布及其吸收制品，克服现有产品的缺陷。
 技术解决方案
为实现上述目的，本发明的解决方案是：一种表面具有条纹凸起的无纺布，所述的无纺布表面具有若干条纵向延伸、横向分布的条纹凸起，所述条纹凸起的高度为0.5mm～3.0mm，在相邻条纹凸起之间构成的开孔区域具有多个开孔，单个所述开孔的平均面积小于20mm 2。
所述的无纺布由表层和底层构成的复合无纺布。
所述的条纹凸起位于所述复合无纺布的表层。
所述的无纺布为热风无纺布、纺粘无纺布、水刺无纺布或热轧无纺布。
所述的条纹凸起为纵向连续的条纹凸起或纵向间断的条纹凸起。
所述条纹凸起是实心条纹凸起或空心条纹凸起。
所述开孔区域具有多个凸起。
一种包含表面具有条纹凸起的无纺布的吸收制品，包括透液面层、吸收层和透气底层，所述吸收层设于透液面层和透气底层间，所述吸收制品的透液面层由所述表面具有条纹凸起的无纺布制成。
 有益效果
采用上述方案后，本发明的无纺布表面具有条纹凸起，在应用于吸收用品面层时，条纹凸起既减少吸收用品面层可与人体的接触面积，又可以在人体和吸收用品之间形成气流隔绝层，有效防止皮肤粘连，给人以柔软舒适感，并且纵向条纹凸起可以将体液在吸收制品的纵向上进行导流，扩大体液渗透面积，加快体液下渗速度，并且还可以有效阻挡体液发生侧漏；而相邻条纹凸起之间的开孔区域可以加速体液下渗，快速通过开孔被芯体吸收，提高无纺布的干爽性能。
 附图说明
图1 为本发明实施例1中表面具有条纹凸起的无纺布的平面示意图。
图2 为本发明实施例1中表面具有条纹凸起的无纺布的O-O’剖面示意图。
图3为本发明实施例2中表面具有条纹凸起的无纺布的平面示意图。
图4为本发明实施例2中表面具有条纹凸起的无纺布的P-P’剖面示意图。
图5为本发明实施例3中卫生吸收制品的平面示意图。
符号说明：实施例 1 。
1 表面具有条纹凸起的无纺布。
a1条纹凸起    b1开孔。
实施例 2 。
2表面具有条纹凸起的无纺布            21表层         22 底层。
a2条纹凸起    b2开孔   c2 内部空间。
实施例 3 。
3 表面具有条纹凸起的无纺布            4 吸收制品。
a3条纹凸起    b3开孔 。
 本发明的实施方式
为了进一步解释本发明的技术方案，下面通过具体实施例来对本发明进行详细阐述。
实施例 1。
如图1和图2所示，本实施例的表面具有条纹凸起的无纺布1，表面具有若干条纵向延伸、横向分布的条纹凸起a1，在相邻条纹凸起a1之间具有由多个开孔b1构成的开孔区域。
本实施例中表面具有条纹凸起的无纺布1是单层热风无纺布，条纹凸起a1为实心连续条纹凸起,凸起高度为0.5-3.0mm，太高，舒适性差，太低，起不到阻挡体液的作用，本实施例中条纹凸起a1的凸起高度为0.8mm，相邻条纹凸起的宽度为0.5-8mm，开孔区域的单个开孔的平均开孔面积可以为小于20mm 2，本实施例中单个开孔b1的平均开孔面积为15mm 2。
采用上述方案后，本实施例中的无纺布表面具有条纹凸起a1，在应用于吸收用品面层时，条纹凸起a1为连续的实心凸起，凸起部分不易压塌，并且纵向条纹凸起a1可以将体液在吸收制品的纵向上进行导流，扩大体液渗透面积，加快体液下渗速度，并且还可以有效阻挡体液发生侧漏；各相邻条纹凸起a1之间的分布可以是等距分布，也可以是不等距分布，可以根据吸收制品的宽度大小进行调整。而相邻条纹凸起a1之间的的开孔区域可以加速体液下渗，快速通过开孔b1被芯体吸收，提高无纺布的干爽性能。
实施例 2 。
如图3和图4所示，本实施例的表面具有条纹凸起的无纺布2，表面具有若干条纵向延伸、横向分布的条纹凸起a2，在邻条纹凸起a2之间具有由多个开孔b2构成的开孔区域。
本实施例中表面具有条纹凸起的无纺布2是由表层21和底层22构成的复合无纺布，其中，表层21为水刺无纺布，底层22为热风无纺布，条纹凸起a2为空心间断条纹凸起,凸起高度为0.5-3.0mm，本实施例中条纹凸起a2的凸起高度为2.5mm，开孔区域的单个开孔的平均开孔面积可以为小于20mm 2，本实施例中单个开孔b2的平均开孔面积为10mm 2。
采用上述方案后，本实施例中条纹凸起a2为空心间断条纹凸起，在用于吸收制品时，由表层21和底层22构成凸起的空心结构，可以形成透气通道，提供气流的内外循环，减少湿闷感；表层21的水刺无纺布亲肤特性可以增加整体无纺布的柔软舒适性，而底层22的支撑作用，可以防止凸起部分被挤压，防止通道堵塞，压塌。同时，条纹凸起a2还可以将体液在吸收制品的纵向上进行导流，扩大体液渗透面积，加快体液下渗速度，有效阻挡体液发生侧漏。
实施例 3 。
如图5所示，本实施例中的一种包含表面具有条纹凸起的无纺布3的吸收制品4，包括透液面层、吸收层和透气底层，所述吸收层设于透液面层和透气底层间，所述吸收制品的透液面层由所述表面具有条纹凸起的无纺布3制成，其中吸收制品的中间区域为渗透区域，主要用于与人体接触，吸收体液；两侧区域为吸收制品的护翼部分，主要用于固定吸收制品。表面具有条纹凸起的无纺布的条纹凸起a3位于吸收制品4渗透区域的两侧，形成立体挡墙，有效防止体液侧漏，而吸收制品的渗透区域中可以包含多条条纹凸起a3，这样既可以防止侧漏，也可以纵向导流，扩大体液纵向渗透区域，提高吸收制品的有效利用面积。而吸收制品4的中间渗透区域则是位于相邻条纹凸起3之间的由多个开孔b3和凸起c3构成的开孔区域，开孔b3可以加速体液渗透到吸收层，增加下渗速度，而凸起c3可以减少吸收制品与人体的接触面积，防止粘连皮肤，进一步提高干爽性。
以上所述，仅为本发明的较佳实施例而已，故不能依此限定本发明实施的范围，即依本发明专利范围及说明书内容所作的等效变化与修饰，皆应仍属本发明涵盖的范围内。

Claims (8)

  1. 一种表面具有条纹凸起的无纺布，其特征在于：所述的无纺布表面具有若干条纵向延伸、横向分布的条纹凸起，所述条纹凸起的高度为0.5mm～3.0mm，在相邻条纹凸起之间构成的开孔区域具有多个开孔，单个所述开孔的平均面积小于20mm 2。
  2. 如权利要求1所述的一种表面具有条纹凸起的无纺布，其特征在于：所述的无纺布为包括表层和底层的复合无纺布。
  3. 如权利要求2所述的一种表面具有条纹凸起的无纺布，其特征在于：所述的条纹凸起位于所述复合无纺布的表层。
  4. 如权利要求1所述的一种表面具有条纹凸起的无纺布，其特征在于：所述开孔区域具有多个凸起。
  5. 如权利要求1所述的一种表面具有条纹凸起的无纺布，其特征在于：所述的无纺布为热风无纺布、纺粘无纺布、水刺无纺布或热轧无纺布。
  6. 如权利要求1所述的一种表面具有条纹凸起的无纺布，其特征在于：所述的条纹凸起为纵向连续的条纹凸起或纵向间断的条纹凸起。
  7. 如权利要求1所述的一种表面具有条纹凸起的无纺布，其特征在于：所述条纹凸起是实心条纹凸起或空心条纹凸起。
  8. 一种包含表面具有条纹凸起的无纺布的吸收制品，包括透液面层、吸收层和透气底层，所述吸收层设于透液面层和透气底层间，其特征在于：所述吸收制品的透液面层由权利要求1-4任一所述的一种表面具有条纹凸起的无纺布制成。
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