CN113499192B - Ultrathin sanitary towel for puerperium - Google Patents

Ultrathin sanitary towel for puerperium Download PDF

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Publication number
CN113499192B
CN113499192B CN202110807877.1A CN202110807877A CN113499192B CN 113499192 B CN113499192 B CN 113499192B CN 202110807877 A CN202110807877 A CN 202110807877A CN 113499192 B CN113499192 B CN 113499192B
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China
Prior art keywords
layer
absorption
wet
absorbent resin
super absorbent
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CN113499192A (en
Inventor
荣育凤
张燕燕
田春兰
崔象凯
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Nuo Chen Co ltd
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Nuo Chen Co ltd
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    • 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
    • A61F13/45—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
    • A61F13/53—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 absorbing medium
    • A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53708—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
    • A61F13/53713—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the vertical 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
    • A61F13/53—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 absorbing medium
    • A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53708—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
    • A61F13/53717—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the horizontal 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
    • A61F13/53—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 absorbing medium
    • A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/5376—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the performance of the layer, e.g. acquisition rate, distribution time, transfer time
    • 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
    • A61F2013/15008—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use
    • A61F2013/1517—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use for puerperae, i.e. after childbirth
    • 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
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • A61F2013/15365—Dimensions
    • A61F2013/15373—Calliper, i.e. thickness
    • A61F2013/15382—Reduced thickness
    • 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
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • A61F2013/15463—Absorbency
    • 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
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • A61F2013/15544—Permeability
    • A61F2013/1556—Water permeability
    • 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
    • A61F13/53—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 absorbing medium
    • A61F2013/530481—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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • 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
    • A61F13/53—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 absorbing medium
    • A61F2013/530481—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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530708—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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the absorbency properties

Abstract

The invention relates to an ultrathin sanitary towel in a puerperium, which comprises a sanitary towel main body, wherein two sides of the sanitary towel main body are provided with side wings; the sanitary towel main body sequentially comprises a soft cotton surface layer, an absorption core body and a water repellent layer; the absorption core body consists of an absorption layer and a wrapping layer; the absorption layer comprises a first absorption layer and a second absorption layer; the first absorption layer sequentially comprises a first wet-process manufactured high-water-absorption resin water absorption paper layer, a high-water-absorption resin layer and a second wet-process manufactured high-water-absorption resin water absorption paper layer; the second absorption layer consists of a fluff pulp layer and a high water absorption resin layer wrapped by elastic non-woven fabrics; the first absorption layer is provided with a flow guide absorption area which consists of a vortex absorption area positioned in the middle of the first absorption layer and flow guide pressure grooves distributed on two sides of the vortex absorption area, and the vortex absorption area and the flow guide pressure grooves are arranged in the first absorption layer in a penetrating mode. The ultrathin sanitary towel for the puerperium can obviously reduce the thickness of the product and increase the dryness, and has the characteristics of thinness, softness, more comfortable use and the like.

Description

Ultrathin sanitary towel for puerperium
Technical Field
The invention relates to the technical field of sanitary towels, in particular to an ultrathin sanitary towel for a puerperium.
Background
Along with the continuous improvement of living standard, people require more and more high to the material, pay more attention to product practicality and travelling comfort, and it is convenient that the sanitary towel of mattress producing period gives women's postpartum problem, and mattress producing sanitary towel use amount crescent, the requirement to travelling comfort, the security of mattress producing sanitary towel is more and more high to make the demand of high-end mattress producing period sanitary towel show the increase. At present, the cotton-padded sanitary napkins on the market mostly adopt fluff pulp and Super Absorbent Polymer (SAP) to be mixed as the absorption core of the sanitary napkins, and the sanitary napkins are thicker due to the existence or large using amount of the fluff pulp, so that the wearing comfort of women is influenced; in addition, the common cotton-padded mattress-producing sanitary towel in the market also has the problems of low absorption speed, large reverse osmosis amount, poor surface dryness and the like.
Therefore, in response to the above deficiencies, it would be desirable to provide an ultra-thin puerperium sanitary napkin that reduces the thickness of the napkin, enhances the absorption capacity, increases the absorption rate, and provides greater comfort.
Disclosure of Invention
The invention provides an ultrathin sanitary towel for puerperium, aiming at solving the technical problems that the existing sanitary towel for puerperium is thicker, the surface is poorer in dryness, the wearing comfort of women is influenced, and the like. The invention provides a sanitary towel with ultrathin structure for bedding production, which can reduce the thickness of the sanitary towel in the bedding production, enhance the absorption capacity and the absorption speed of the sanitary towel in the bedding production, and increase the air permeability and the surface dryness of the sanitary towel in the bedding production.
In order to solve the technical problem, the invention provides an ultrathin sanitary towel for puerperium, which comprises a sanitary towel main body, wherein two sides of the sanitary towel main body are provided with side wings, and the sanitary towel main body sequentially comprises a soft cotton surface layer, an absorption core body and a water repellent layer from top to bottom; the absorption core body consists of an absorption layer and a wrapping layer wrapping the absorption layer; the absorbent layer comprises a first absorbent layer and a second absorbent layer, the first absorbent layer being closer to the cotton soft facing layer than the second absorbent layer; the first absorption layer sequentially comprises a first wet-process manufactured super absorbent resin absorbent paper layer, a super absorbent resin layer and a second wet-process manufactured super absorbent resin absorbent paper layer from top to bottom; the second absorption layer is composed of a fluff pulp layer and a high water absorption resin layer wrapped by elastic non-woven fabrics; the first absorption layer is provided with a flow guide absorption area, the flow guide absorption area consists of a vortex absorption area positioned in the middle of the first absorption layer and flow guide pressure grooves distributed on two sides of the vortex absorption area, and the vortex absorption area and the flow guide pressure grooves are arranged in the first absorption layer in a penetrating mode.
Preferably, the elastic nonwoven is an elastic spunbond nonwoven; and/or in the second absorption layer, the mass ratio of the fluff pulp contained in the fluff pulp layer to the high water absorption resin contained in the high water absorption resin layer wrapped by the elastic non-woven fabric is not more than 1.
Preferably, the soft cotton surface layer is made of non-woven fabric, and the non-woven fabric is made of fibers through opening, carding, net forming or net fixing; preferably, the web-fixing treatment is any one of spunlace, needle punching, thermal bonding or chemical bonding; the fiber diameter of the non-woven fabric adopted by the cotton soft surface layer is 0.8-1.5 denier.
Preferably, the two sides of the cotton soft surface layer are provided with three-dimensional fencing.
Preferably, the three-dimensional enclosure is made of water-repellent non-woven fabric, and the water-repellent non-woven fabric is made by lapping filaments and hot rolling reinforcement; and/or the three-dimensional enclosure is a suspended three-dimensional enclosure, the suspended three-dimensional enclosure is made of water-repellent non-woven fabric and/or elastic rubber band, and the water-repellent non-woven fabric is made by lapping filaments and hot rolling reinforcement.
Preferably, the sanitary napkin main body further comprises a flow guide layer, the flow guide layer is arranged between the soft cotton surface layer and the absorption core body, the flow guide layer is made of hot-air non-woven fabric, and the fiber diameter of the hot-air non-woven fabric is 1-3 denier; and/or the water repellent layer is made of an air-permeable basement membrane.
Preferably, the wrapping layer is made of wet strength paper and/or non-woven fabric, and the non-woven fabric is made of filament lapping and hot rolling reinforcement.
Preferably, the first wet-process-made super absorbent resin absorbent paper layer and the second wet-process-made super absorbent resin absorbent paper layer are both composed of two raw paper layers and super absorbent resin sandwiched between the two raw paper layers; the gram weight of the first wet-method-made super absorbent resin absorbent paper layer and/or the second wet-method-made super absorbent resin absorbent paper layer is 50-150g/m2(ii) a The content of the super absorbent resin in the first wet-process super absorbent resin absorbent paper layer is 5-40% of the gram weight of the first wet-process super absorbent resin absorbent paper layer, and/or the content of the super absorbent resin in the second wet-process super absorbent resin absorbent paper layer is 5-40% of the gram weight of the second wet-process super absorbent resin absorbent paper layer.
Preferably, the grammage of the second wet-process super absorbent resin absorbent paper layer is greater than the grammage of the first wet-process super absorbent resin absorbent paper layer; preferably, the grammage of the second wet-process super absorbent resin absorbent paper layer is not less than 30g/m larger than that of the first wet-process super absorbent resin absorbent paper layer2。
Preferably, the thickness of the absorption layer is less than or equal to 2.5 mm.
Compared with the prior art, the invention at least has the following beneficial effects:
(1) the first absorption layer is prepared by mixing a super absorbent resin layer with a two-layer wet-method manufactured super absorbent resin water absorption paper layer, fluff pulp is not added, and the dryness of the sanitary towel can be improved; the second absorption layer in the invention is composed of a fluff pulp layer and a high water absorption resin layer wrapped by elastic non-woven fabric, compared with the absorption layer formed by mixing fluff pulp and high water absorption resin in the prior art, the second absorption layer in the invention designs the fluff pulp and the high water absorption resin wrapped by the elastic non-woven fabric into layers independently, so that the addition amount of the fluff pulp is reduced, the product is thin, wherein the fluff pulp layer is arranged to solve the problem that the absorption speed of the high water absorption resin is slow in the early stage, the second absorption layer in the invention can enable liquid to be absorbed quickly through the fluff pulp layer, then the high water absorption resin in the high water absorption resin layer wrapped by the elastic non-woven fabric can absorb the liquid in the fluff pulp, meanwhile, the liquid can be absorbed by the high water absorption resin through the fluff pulp, the second absorption layer in the invention can effectively solve the problem that the fluff pulp cannot effectively lock the liquid after absorbing the liquid through the high water absorption resin layer wrapped by the elastic non-woven fabric, large reverse seepage amount and poor dryness; the first absorption layer and the second absorption layer are arranged, so that the ultrathin sanitary towel in the bedding producing period has the advantages of good dryness and comfort, large liquid absorption amount, high absorption speed, thin product and the like, and the thickness of the absorption layer of the sanitary towel in the bedding producing period in the market can be reduced by 30-60%, so that the whole thickness of the sanitary towel in the bedding producing period is obviously reduced, and the ultrathin structure is realized.
(2) The first absorption layer is provided with a flow guide absorption area, the flow guide absorption area consists of a vortex absorption area positioned in the middle of the first absorption layer and flow guide pressure grooves distributed on two sides of the vortex absorption area, and the vortex absorption area and the flow guide pressure grooves are arranged in the first absorption layer in a penetrating manner; in the invention, the arrangement of the vortex absorption area and the diversion pressure groove can increase the liquid conduction performance of the ultrathin sanitary towel in the bedding producing period while accelerating the infiltration speed; the vortex absorption area and the flow guide pressure groove can effectively conduct blood, guide liquid in all directions, ensure dryness, enable the sanitary towel main body to deeply penetrate into the super absorbent resin layer included in the first absorption layer when being stressed by heavy pressure, and effectively lock the liquid; in some preferred embodiments, two flow guiding pressure grooves are respectively arranged on two sides of the vortex absorption region, the flow guiding pressure groove positioned on the inner side can guide liquid unabsorbed by the vortex absorption region to two sides, and the flow guiding pressure groove positioned on the outer side can also play a role in resisting the liquid, so that the liquid is prevented from flowing out of the side leakage.
(3) In some preferred embodiments of the present invention, the three-dimensional enclosure is disposed on two sides of the cotton soft layer adjacent to the side flaps, so as to effectively prevent leakage. The ultrathin sanitary towel in the puerperium is thinner and softer, and the comfort of mothers in the puerperium is better.
Drawings
The drawings of the present invention are provided for illustrative purposes only, and the scale and size of the portions in the drawings are not necessarily consistent with those of actual products.
FIG. 1 is a schematic cross-sectional view of a sanitary napkin body comprising an ultra-thin puerperium sanitary napkin according to some embodiments of the present invention.
Figure 2 is a schematic view of the distribution of fluid-directing absorbent zones in the first absorbent layer in some embodiments of the present invention.
Fig. 3 is a schematic representation of the distribution of elastic bands over the water repellent layer in some embodiments of the present invention.
In the figure: 1: a cotton soft surface layer; 2: a first absorbent layer; 21: manufacturing a super absorbent resin absorbent paper layer by a first wet method; 22: a super absorbent resin layer; 23: manufacturing a high water-absorbent resin absorbent paper layer by a second wet method; 3: a second absorbent layer; 31: a fluff pulp layer; 32: a super absorbent resin layer wrapped by elastic non-woven fabric; 321: a super absorbent resin; 322: an elastic non-woven fabric layer; 4: a wrapping layer; 5: a water repellent layer; 6: a vortex absorption zone; 7: a flow guide pressure tank; 8: an elastic rubber band.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides an ultrathin puerperium sanitary towel, which comprises a sanitary towel main body, wherein two sides of the sanitary towel main body are provided with side wings, and the sanitary towel main body sequentially comprises a soft cotton surface layer 1, an absorption core body and a water repellent layer 5 from top to bottom, for example, as shown in figure 1; in the present invention, it is preferable that two sides of the soft cotton surface layer 1 are provided with three-dimensional fenders (not shown in the figure), and in the present invention, two sides of the soft cotton surface layer 1 are provided with three-dimensional fenders adjacent to the side wings; the absorption core body consists of an absorption layer and a wrapping layer 4 wrapping the absorption layer; the absorption layer comprises a first absorption layer 2 and a second absorption layer 3, and the first absorption layer 2 is closer to the soft cotton surface layer 1 than the second absorption layer 3; the first absorption layer 2 comprises a first wet-process-made super absorbent resin absorbent paper layer 21 (also referred to as a first SAPP composite paper layer), a super absorbent resin layer 22 and a second wet-process-made super absorbent resin absorbent paper layer 23 (also referred to as a second SAPP composite paper layer) in sequence from top to bottom, wherein the super absorbent resin layer is formed of super absorbent resin; the second absorbent layer 3 is composed of a fluff pulp layer 31 and a super absorbent resin layer 32 wrapped with an elastic nonwoven fabric, for example, as shown in fig. 1, the super absorbent resin layer 32 wrapped with an elastic nonwoven fabric is composed of an elastic nonwoven fabric layer 322 and a super absorbent resin 321 wrapped in the elastic nonwoven fabric layer 322; the elastic non-woven fabric layer 322 in the invention is made of elastic non-woven fabric, the elastic non-woven fabric is different from common non-woven fabric, the elastic non-woven fabric is elastic non-woven fabric, and the elastic non-woven fabric layer 322 can expand along with the expansion of the super absorbent resin after imbibing; preferably, the elastic nonwoven layer 322 is made of elastic spunbonded nonwoven; in the invention, just by wrapping the super absorbent resin with the elastic non-woven fabric, the problem of difficult forming when the second absorption layer is formed by independently layering a fluff pulp layer and a super absorbent resin layer is effectively solved, and the second absorption layer in the invention is formed by: firstly, glue is sprayed on an elastic non-woven fabric, super absorbent resin is sprayed, then the elastic non-woven fabric is wrapped to form a super absorbent resin layer 32 wrapped by the elastic non-woven fabric, and then a thin layer of fluff pulp is laid on the upper layer of the super absorbent resin layer wrapped by the elastic non-woven fabric to form the fluff pulp layer 31; the first absorption layer is provided with a flow guide absorption area (not shown in fig. 1), for example, as shown in fig. 2, the flow guide absorption area is composed of a vortex absorption area 6 located in the middle of the first absorption layer and flow guide pressure grooves 7 distributed on two sides (left and right sides as shown in fig. 2) of the vortex absorption area 6, and the vortex absorption area 6 and the flow guide pressure grooves 7 are penetratingly arranged in the first absorption layer 2, that is, the vortex absorption area 6 and the flow guide pressure grooves 7 are penetratingly arranged from the upper surface of the first absorption layer 2 to the lower surface of the first absorption layer 2; in the present invention, for example, as shown in fig. 2, a closed region formed by two spiral lines (also referred to as swirl lines) corresponds to the swirl absorption region 6, and the present invention does not particularly require the size of the swirl absorption region, and the contour width of the swirl absorption region in the width direction of the first absorption layer may be, for example, 1/4 to 1/2 times the width of the first absorption layer, and the contour length of the swirl absorption region in the length direction of the first absorption region may be, for example, 0.8 to 1.5 times the contour width thereof; in the present invention, the width of the vortex absorption region, which refers to the distance between the two spiral lines shown in fig. 2, may be, for example, preferably 8 to 20mm, and more preferably 8 to 15 mm; in the invention, the diversion pressure tank is preferably S-shaped; the length and the width of the diversion pressure groove are not particularly required, preferably, the width of the diversion pressure groove is 0.5-5 mm, more preferably 1-2 mm, the width of the diversion pressure groove is smaller, the diversion pressure groove is only represented by one line in figure 2, and the width of the diversion pressure groove is not shown; in the present invention, it is preferable that the length of the guide pressure groove is longer than the length of the profile of the vortex absorption zone; the shape and number of the flow guide pressure grooves are not particularly required, in some preferred embodiments, two flow guide pressure grooves are respectively arranged on two sides of the vortex absorption area, for example, two S-shaped flow guide pressure grooves are preferably respectively arranged, the flow guide pressure groove positioned on the inner side can guide liquid which is not absorbed by the vortex absorption area to two sides, and the flow guide pressure groove positioned on the outer side can also play a role in blocking the liquid, so that the liquid is prevented from flowing out and leaking laterally.
The first absorption layer is different from the absorption layer which is made of a high-water-absorption resin layer or a high-water-absorption resin paper layer in the prior art, the first absorption layer adopts a sandwich structure design, the absorption performance of a product can be ensured, the absorption capacity of the product is increased, the problem of poor dryness and smoothness caused by insufficient absorption capacity of the first absorption layer is solved, meanwhile, the high-water-absorption resin paper layer manufactured by a wet method can promote liquid to seep and conduct, the gel blockage after the product absorbs liquid is prevented, and the dryness and smoothness of the product are improved. The second absorption layer in the invention is composed of a fluff pulp layer and a high water absorption resin layer wrapped by elastic non-woven fabric, compared with the absorption layer formed by mixing fluff pulp and high water absorption resin in the prior art, the second absorption layer in the invention designs the fluff pulp and the high water absorption resin wrapped by the elastic non-woven fabric into layers independently, so that the addition amount of the fluff pulp is reduced, the product is thin, wherein the fluff pulp layer is arranged to solve the problem that the absorption speed of the high water absorption resin is slow in the early stage, the second absorption layer in the invention can enable liquid to be absorbed quickly through the fluff pulp layer, then the high water absorption resin in the high water absorption resin layer wrapped by the elastic non-woven fabric can absorb the liquid in the fluff pulp, meanwhile, the liquid can be absorbed by the high water absorption resin through the fluff pulp, the second absorption layer in the invention can effectively solve the problem that the fluff pulp cannot effectively lock the liquid after absorbing the liquid through the high water absorption resin layer wrapped by the elastic non-woven fabric, large reverse seepage amount and poor dryness; the first absorption layer and the second absorption layer are arranged, so that the ultrathin sanitary towel in the bedding producing period has the advantages of good dryness and comfort, large liquid absorption amount, high absorption speed, thin product and the like, and the thickness of the absorption layer of the sanitary towel in the bedding producing period on the market can be reduced by 30-60%, so that the whole thickness of the sanitary towel in the bedding producing period is obviously reduced, and the ultrathin structure is realized; according to the invention, the arrangement of the vortex absorption area and the flow guide pressure groove can accelerate the infiltration speed and increase the liquid conduction performance of the ultrathin sanitary towel in the bedding producing period; the vortex absorption area and the flow guide pressure groove can effectively conduct blood, guide liquid in all directions, ensure dryness, enable the sanitary towel main body to deeply penetrate into the super absorbent resin layer included in the first absorption layer when being stressed by heavy pressure, and effectively lock the liquid; the invention discovers that the arrangement of the diversion absorption area has faster liquid guiding effect and better anti-reverse osmosis effect compared with the diversion absorption area formed by a plurality of diversion grooves or a plurality of diversion holes in the prior art.
In particular, in the present invention, the cotton soft surface layer, the absorbent core and the water repellent layer may be laminated by spraying adhesive, i.e. bonded together in sequence by hot melt adhesive, and the other layers may be bonded together in sequence by hot melt adhesive, for example, and the peeled-off state between the layers shown in fig. 1 is merely for clarity of illustrating the structure of each layer; the first wet-process-made super absorbent resin absorbent paper layer and the second wet-process-made super absorbent resin absorbent paper layer are wet-process-made super absorbent resin absorbent paper layers (namely wet-process-made super absorbent resin composite paper layers) formed by uniformly distributing super absorbent resin between two raw paper layers by the existing wet-process papermaking process. In the present invention, the wet paper-making process can be, for example, the wet paper-making process disclosed in chinese patent application CN 201710966882.0.
According to some preferred embodiments, the elastic nonwoven is an elastic spunbond nonwoven; and/or in the second absorption layer, the mass ratio of the fluff pulp contained in the fluff pulp layer 31 to the high water absorption resin contained in the high water absorption resin layer 32 wrapped by the elastic non-woven fabric is not more than 1; preferably, in the second absorbent layer, the mass ratio of fluff pulp contained in the fluff pulp layer to superabsorbent resin contained in the superabsorbent resin layer wrapped with the elastic nonwoven fabric is (3 to 4): (4-6), for example, in the second absorbent layer, the fluff pulp layer contains 3-4 g of fluff pulp, and the superabsorbent resin layer wrapped with the elastic nonwoven fabric contains not less than 4g of superabsorbent resin, preferably 4-6 g; as is well known in the art, in an absorbent layer formed by mixing fluff pulp and super absorbent resin, the mass ratio of the usage amount of the fluff pulp to the super absorbent resin is generally (7-10): (3-5), the using amount of the fluff pulp is obviously larger than that of the super absorbent resin, the using amount of the fluff pulp is larger, and the product thickness is larger; compared with the prior art, the invention has the advantages that the addition amount of the fluff pulp is obviously reduced, the product is thinned, but the dryness of the product is better, the liquid absorption capacity is larger, and the absorption speed is faster.
According to some preferred embodiments, the soft cotton surface layer 1 is made of non-woven fabrics, the non-woven fabrics are made of fibers through opening, carding and web forming or web fixing, the fiber diameter of the non-woven fabrics adopted by the soft cotton surface layer 1 is 0.8-1.5 denier, the spun-bonded non-woven fabric surface layer or the hot air non-woven fabric surface layer with the fiber diameter larger than or equal to 2 denier is generally selected for products in the market, the non-woven fabrics have poor hand feeling and rough products, the non-woven fabric surface layer is selected from 0.8-1.5 denier fibers, the hand feeling is soft, the comfort is high, the surface of the ultrathin pad production period sanitary towel provided by the invention can have the advantages of hydrophilicity and air permeability, the product is quick to permeate downwards and comfortable to wear, and the comfort degree of a user can be improved.
According to some preferred embodiments, the web-securing process employs any one of hydroentangling, needle punching, thermal bonding, or chemical bonding.
According to some preferred embodiments, the two sides of the soft cotton surface layer 1 are provided with three-dimensional fencing, and in the invention, the two sides of the soft cotton surface layer are provided with three-dimensional fencing adjacent to the side wings.
According to some preferred embodiments, the three-dimensional enclosure is made of water-repellent non-woven fabric, and the water-repellent non-woven fabric is made by filament lapping and hot rolling reinforcement.
According to some preferred embodiments, the stereoscopic enclosure is a suspended stereoscopic enclosure; the suspended three-dimensional enclosure is made of water-repellent non-woven fabrics and/or elastic rubber bands, wherein the water-repellent non-woven fabrics are preferably made by lapping filaments and hot rolling and reinforcing; in the invention, the suspended three-dimensional enclosure is formed by fixedly arranging water-repellent non-woven fabrics compounded with elastic rubber bands at two sides of the soft cotton surface layer 1 close to the side wings in a hot pressing and glue spraying manner, pressing the water-repellent non-woven fabrics compounded with the elastic rubber bands and the soft cotton surface layer close to the side wings, and enabling the non-pressed parts of the water-repellent non-woven fabrics compounded with the elastic rubber bands to be in a natural state, namely to be in a suspended structure relative to the soft cotton surface layer; in the invention, the width of the non-pressed water-repellent non-woven fabric can be 3-10 mm, namely the width of the suspended three-dimensional enclosure is 3-10 mm; in some specific embodiments, the height of the highest part of the suspended three-dimensional enclosure above the cotton soft surface layer is 2-5 mm.
According to some preferred embodiments, the sanitary napkin main body further comprises a flow guide layer disposed between the cotton soft face layer 1 and the absorbent core; the flow guide layer can effectively play a role in liquid conduction, and is favorable for improving the dryness of the soft cotton surface layer 1 of the ultrathin sanitary towel in the bedding producing period; the flow guide layer is made of hot-air non-woven fabric, and the fiber diameter of the hot-air non-woven fabric is 1-3 denier; in the invention, the non-woven fabric of the diversion layer is used for promoting liquid infiltration, and the invention finds that the hot air non-woven fabric with the fiber diameter of 1-3 denier is selected, the fiber is thicker, and the diversion effect is better.
According to some preferred embodiments, the water-repellent layer 5 is made of an air-permeable carrier film, for example a PE air-permeable carrier film.
In the present invention, the wrapping layer 4 may be made of, for example, a nonwoven fabric made of a filament-laid web and consolidated by hot rolling and/or a paper made of super absorbent short fibers, wood pulp fluff short fibers and thermoplastic short fibers as main raw materials.
According to some preferred embodiments, the wrapping layer 4 is made of wet-strength paper and/or non-woven fabric, which is made by filament lapping and hot-roll consolidation.
According to some preferred embodiments, the first and second wet-laid super absorbent resin absorbent paper layers 21 and 23 are each formed by two raw paper layers with a sandwichThe high water absorption resin is arranged between the two raw paper layers; the gram weight of the first wet-process-made super absorbent resin absorbent paper layer 21 and/or the second wet-process-made super absorbent resin absorbent paper layer 23 is 50-150g/m2(e.g., 50 g/m)2、60g/m2、70g/m2、80g/m2、90g/m2、100g/m2、110g/m2、120g/m2、130g/m2、140g/m2Or 150g/m2) Preferably 70 to 120g/m2(ii) a The superabsorbent resin content of the first wet-process superabsorbent resin absorbent paper layer 21 is 5% to 40% (e.g., 5%, 10%, 15%, 20%, 25%, 30%, 35%, or 40%) by grammage of the first wet-process superabsorbent resin absorbent paper layer 21, preferably 15% to 25% (e.g., 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, or 25%), and/or the superabsorbent resin content of the second wet-process superabsorbent resin absorbent paper layer 23 is 5% to 40% (e.g., 5%, 10%, 15%, 20%, 25%, 30%, 35%, or 40%) by grammage of the second wet-process superabsorbent resin absorbent paper layer 23, preferably 15% to 25% (e.g., 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%), and/or 15% to 25% (e.g., 15%, 10%, 15%, 17%, 18%, 19%, 20%, 21%, 22%, 23%) 24% or 25%).
According to some preferred embodiments, the grammage of the second wet-laid super absorbent resin absorbent paper layer 23 is greater than the grammage of the first wet-laid super absorbent resin absorbent paper layer 21; preferably, the grammage of the second wet-process-made super absorbent resin absorbent paper layer 23 is not less than 30g/m larger than that of the first wet-process-made super absorbent resin absorbent paper layer 212(ii) a In the present invention, the grammage of the first and second wet-process-made super absorbent resin absorbent paper layers may be different, and it is preferable that the second wet-process-made super absorbent resin absorbent paper layer has a grammage not less than 30g/m greater than that of the first wet-process-made super absorbent resin absorbent paper layer2Therefore, the absorption capacity and the absorption speed of the second wet-process super absorbent resin absorbent paper layer can be effectively increased, and the second wet-process super absorbent resin absorbent paper layer is matched with the second absorption layer to effectively lock absorbed liquid, so that the upper layer of the ultrathin sanitary towel in the bedding period can be drier and more comfortable.
According to some preferred embodiments, the thickness of the absorption layer is less than or equal to 2.5mm, preferably 1.5-2 mm; the thickness of the soft cotton surface layer, the flow guide layer, the wrapping layer and the water repellent layer is not particularly required, and the thickness commonly used by the existing sanitary towel is adopted; the thickness of the first absorption layer and the thickness of the second absorption layer included in the absorption layer are not particularly required, but the first absorption layer is made of two wet-method-made super absorbent resin water absorption paper layers and a super absorbent resin layer, fluff pulp is not added, the second absorption layer is composed of the fluff pulp layer and the super absorbent resin layer wrapped by elastic non-woven fabric, the addition amount of the fluff pulp can be effectively reduced, the dryness of the sanitary towel is improved, and the thickness of the absorption layer (the thickness of the absorption layer of the sanitary towel in the bedding period in the market is generally 5-7 mm) of the sanitary towel in the bedding period in the market is reduced by 30% -60%, so that the thickness of the absorption layer in the sanitary towel in the bedding period in the invention can be effectively ensured to be not more than 2.5mm, and the whole thickness of the sanitary towel in the bedding period in the invention is obviously reduced, and the sanitary towel in the invention has an ultrathin structure.
Women need to have a good rest after delivery, and the general supination time is longer, while the existing sanitary towel in the puerperium has the problem of back leakage caused by supination during sleeping; when the user lies on the back for a long time, the blood is easy to leak along the groin, which causes the trouble of the user.
In order to make the ultrathin puer sanitary napkin have an efficient back leakage prevention function and effectively avoid the problem of back leakage, in some preferred embodiments of the invention, an elastic rubber string 8 is further arranged on one side of the water repellent layer 5 close to the absorbent core, for example, as shown in fig. 3, the elastic rubber string 8 is arranged along the length direction of the water repellent layer 5, in the invention, the elastic rubber string 8 can be bonded with the water repellent layer 5 through rubber string glue, for example, and the number of the elastic rubber strings 8 arranged on the water repellent layer 5 can be 2-8 (for example, 2, 3, 4, 5, 6, 7 or 8). In the invention, the elastic rubber band on the water repellent layer can enable the front side and the rear side of the ultrathin sanitary towel in the puerperium to be bent and to be closer to a human body, so that blood is prevented from leaking along the groin, and the ultrathin sanitary towel in the puerperium has the function of efficiently preventing the back leakage.
The present invention will be further described with reference to the following examples. These examples are merely illustrative of preferred embodiments of the present invention and the scope of the present invention should not be construed as being limited to these examples.
Example 1
The ultrathin sanitary towel for the puerperium comprises a sanitary towel main body, wherein two sides of the sanitary towel main body are provided with side wings, and the sanitary towel main body sequentially comprises a soft cotton surface layer, a flow guide layer, an absorption core body and a water repellent layer from top to bottom; a three-dimensional guard is arranged on two sides of the cotton soft surface layer close to the side wings; the absorption core body consists of an absorption layer and a wrapping layer wrapping the absorption layer; the absorbent layer comprises a first absorbent layer and a second absorbent layer, the first absorbent layer being closer to the cotton soft face layer than the second absorbent layer; the first absorption layer sequentially comprises a first wet-process manufactured super absorbent resin absorbent paper layer, a super absorbent resin layer and a second wet-process manufactured super absorbent resin absorbent paper layer from top to bottom; the second absorption layer is composed of a fluff pulp layer and a high water absorption resin layer wrapped by elastic non-woven fabric, the mass ratio of fluff pulp contained in the fluff pulp layer to high water absorption resin contained in the high water absorption resin layer wrapped by the elastic non-woven fabric is 3:5, wherein the usage amount of the fluff pulp is 3g, and the usage amount of the high water absorption resin is 5 g; the first absorption layer is provided with a flow guide absorption area, the flow guide absorption area is composed of a vortex absorption area positioned in the middle of the first absorption layer and flow guide pressure grooves distributed on two sides of the vortex absorption area, the vortex absorption area and the flow guide pressure grooves are arranged in the first absorption layer in a penetrating mode, two S-shaped flow guide pressure grooves are distributed on two sides of the vortex absorption area respectively, the width of the vortex absorption area is 10mm, and the width of the flow guide pressure grooves is 2 mm. The soft cotton surface layer is made of hot-air non-woven fabric, the hot-air non-woven fabric is made of fibers through net fixing treatment, and the fiber diameter of the hot-air non-woven fabric is 0.8-1.5 denier. The flow guide layer is made of hot air non-woven fabric, and the fiber diameter of the hot air non-woven fabric is 1-3 denier. The three-dimensional enclosure adopts the refuseThe water-repellent spun-bonded non-woven fabric is prepared by lapping filaments and performing hot rolling reinforcement; the three-dimensional enclosure is a suspended three-dimensional enclosure, and the suspended three-dimensional enclosure on each side is formed by compounding 3 elastic rubber bands with water-repellent spun-bonded non-woven fabrics. The water repellent layer is made of a PE breathable basement membrane. The wrapping layer is made of spun-bonded non-woven fabric, and the spun-bonded non-woven fabric is made of filament lapping through hot rolling and reinforcing. The first wet-process-made super absorbent resin absorbent paper layer and the second wet-process-made super absorbent resin absorbent paper layer are respectively composed of two raw paper layers and super absorbent resin sandwiched between the two raw paper layers; the gram weights of the first wet-process-made super absorbent resin absorbent paper layer and the second wet-process-made super absorbent resin absorbent paper layer are both 85g/m2(ii) a The content of the super absorbent resin in the first wet-process super absorbent resin absorbent paper layer is 15% of the gram weight of the first wet-process super absorbent resin absorbent paper layer, and the content of the super absorbent resin in the second wet-process super absorbent resin absorbent paper layer is 15% of the gram weight of the second wet-process super absorbent resin absorbent paper layer.
The thickness of the absorption layer of this example was 1.9 mm.
Example 2
This example 2 is substantially the same as example 1 except that:
the gram weight of the first wet-process manufactured super absorbent resin absorbent paper layer is 85g/m2(ii) a The gram weight of the second wet-process manufactured super absorbent resin absorbent paper layer is 120g/m2。
The thickness of the absorption layer of this example was 2.1 mm.
In this example, the grammage of the second wet-process-made super absorbent resin absorbent paper layer was 35g/m greater than that of the first wet-process-made super absorbent resin absorbent paper layer2The absorption capacity and the absorption speed of the super absorbent resin absorbent paper layer manufactured by the second wet method can be effectively increased, the absorbed liquid can be effectively locked, and the upper layer of the ultrathin sanitary towel in the bedding producing period in the embodiment is drier and more comfortable.
Example 3
This example 3 is substantially the same as example 1 except that:
the gram weight of the first wet-process manufactured super absorbent resin absorbent paper layer is 120g/m2；
The gram weight of the second wet-process manufactured super absorbent resin absorbent paper layer is 85g/m2。
Example 4
Example 4 is essentially the same as example 2, except that:
the absorbent layer comprises a first absorbent layer and a second absorbent layer, the first absorbent layer being closer to the cotton soft face layer than the second absorbent layer; the first absorption layer is a high water absorption resin layer.
Example 5
Example 5 is essentially the same as example 2, except that:
the absorbent layer comprises a first absorbent layer and a second absorbent layer, the first absorbent layer being closer to the cotton soft face layer than the second absorbent layer; the first absorption layer consists of two wet-process-made super absorbent resin absorbent paper layers, each wet-process-made super absorbent resin absorbent paper layer consists of two raw paper layers and super absorbent resin sandwiched between the two raw paper layers, and the gram weight of each wet-process-made super absorbent resin absorbent paper layer is 85g/m2(ii) a The content of the super absorbent resin in each wet-process super absorbent resin absorbent paper layer is 15 percent of the gram weight of the paper layer.
Example 6
Example 6 is essentially the same as example 2, except that:
and one side of the water repellent layer, which is close to the absorption core body, is also provided with three elastic rubber bands, and the three elastic rubber bands are arranged in parallel along the length direction of the water repellent layer.
Example 7
Example 7 is essentially the same as example 2, except that:
the diversion absorption area is not arranged in the first absorption layer.
Example 8
Example 8 is essentially the same as example 2, except that:
10 vortex guide grooves are uniformly distributed in the middle of the first absorption layer, penetrate through the first absorption layer to form a guide absorption area, and the width of each vortex guide groove is 2 mm.
Example 9
Example 9 is essentially the same as example 2, except that:
the second absorption layer is formed by mixing fluff pulp and super absorbent resin, wherein the mass ratio of the usage amount of the fluff pulp to the super absorbent resin is 2:1, the usage amount of the fluff pulp is 7g, and the usage amount of the super absorbent resin is 3.5 g.
Example 10
This embodiment 10 is substantially the same as embodiment 1 except that:
the absorption layer is formed by mixing fluff pulp and super absorbent resin, the mass ratio of the fluff pulp to the super absorbent resin is 3:1, the usage amount of the fluff pulp is 15g, and the usage amount of the super absorbent resin is 5 g; the absorbing layer is provided with a diversion absorbing area, the diversion absorbing area is formed by uniformly distributing a plurality of circular diversion trenches in the middle of the absorbing layer, the circular diversion trenches penetrate through the absorbing layer, and the diameters of the circular diversion trenches are 2 mm.
The present invention performs the performance tests on the puerperium sanitary napkins of examples 1-10, and the results of the performance tests are shown in tables 1 and 2.
The test method comprises the following steps: adding 10mL of blood on the sanitary towel in the puerperium for three times at intervals of 10 minutes, and recording the time for completing absorption as the absorption speed in unit of s; after 10 minutes of bleeding, 10g of filter paper is placed on the sanitary napkin in the puerperium under the pressure of 1.25kg of weight for 1 minute, and the gram weight increased by weighing the filter paper is the reverse osmosis amount in unit g, and the results are shown in Table 1.
The second test method comprises the following steps: attaching the sanitary towel in the puerperium to the bottom of the U-shaped groove, longitudinally inclining for 30 degrees, and carrying out liquid adding test; animal blood was taken 3 times, 5mL each time, 3 times with 10 minute intervals, animal blood leaked after each liquid addition was received through a tray and weighed to record the amount leaked after recording, and the effect of preventing the leakage after the judgment, in units of g, was as shown in table 1.
Test method three (absorbing layer thickness test method): pressing a zero key on a thickness instrument to zero, pressing a deflector rod by using a thumb of a left hand and lifting the deflector rod, putting a sample (an absorption layer) on a test instrument by using a right hand and the left hand, uniformly and slowly loosening the deflector rod by using the sample to completely cover a measuring anvil, and enabling a falling measuring head to be in contact with the sample; the left (right) thumb was fully released from the instrument while pressing the stopwatch for 10 seconds. The reading is accurate to 0.001mm, the display number of the display is the obtained thickness, and the result is shown in table 2.
Figure GDA0003513241240000161
Table 2: the absorbent layer included in the puerperium sanitary napkins of examples 1-2, examples 4-6, and examples 9-10 was tested for thickness.
Figure GDA0003513241240000171
In Table 1, the symbol "-" indicates that the performance index was not tested.
The invention has not been described in detail and is in part known to those of skill in the art.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (12)

1. The utility model provides an ultra-thin sanitary towel in puerperium, includes the sanitary towel main part, the both sides of sanitary towel main part are provided with flank, its characterized in that:
the sanitary towel main body sequentially comprises a soft cotton surface layer, an absorption core body and a water repellent layer from top to bottom; the absorption core body consists of an absorption layer and a wrapping layer wrapping the absorption layer;
the absorbent layer comprises a first absorbent layer and a second absorbent layer, the first absorbent layer being closer to the cotton soft face layer than the second absorbent layer;
the first absorption layer sequentially comprises a first wet-process manufactured super absorbent resin absorbent paper layer, a super absorbent resin layer and a second wet-process manufactured super absorbent resin absorbent paper layer from top to bottom;
the second absorption layer is composed of a fluff pulp layer and a high water absorption resin layer wrapped by elastic non-woven fabrics;
the first absorption layer is provided with a flow guide absorption area, the flow guide absorption area consists of a vortex absorption area positioned in the middle of the first absorption layer and flow guide pressure grooves distributed on two sides of the vortex absorption area, and the vortex absorption area and the flow guide pressure grooves are arranged in the first absorption layer in a penetrating manner; the vortex absorption area is a closed area formed by two spiral lines.
2. The ultra-thin puerperium sanitary napkin of claim 1, wherein:
the elastic non-woven fabric is elastic spun-bonded non-woven fabric; and/or
In the second absorbent layer, the mass ratio of fluff pulp contained in the fluff pulp layer to superabsorbent resin contained in the superabsorbent resin layer wrapped with the elastic nonwoven fabric is not more than 1.
3. The ultra-thin puerperium sanitary napkin of claim 1, wherein:
the soft cotton surface layer is made of non-woven fabric, and the non-woven fabric is prepared by opening, carding and forming a net or fixing the net on fibers; the fiber diameter of the non-woven fabric adopted by the cotton soft surface layer is 0.8-1.5 denier.
4. The ultra-thin puerperium sanitary napkin of claim 3, wherein:
the web fixing treatment adopts any one of spunlace, needle punching, thermal bonding or chemical bonding.
5. The ultra-thin puerperium sanitary napkin of claim 1, wherein:
and three-dimensional protective enclosures are arranged on two sides of the cotton soft surface layer.
6. The ultra-thin puerperium sanitary napkin according to claim 5, wherein:
the three-dimensional enclosure is made of water-repellent non-woven fabric, and the water-repellent non-woven fabric is made by lapping filaments and hot rolling and reinforcing; and/or
The three-dimensional enclosure is a suspended three-dimensional enclosure, the suspended three-dimensional enclosure is made of water-repellent non-woven fabric and elastic rubber bands, and the water-repellent non-woven fabric is made by lapping filaments and hot rolling reinforcement.
7. The ultra-thin puerperium sanitary napkin of claim 1, wherein:
the sanitary napkin main body also comprises a flow guide layer, the flow guide layer is arranged between the soft cotton surface layer and the absorption core body, the flow guide layer is made of hot-air non-woven fabric, and the fiber diameter of the hot-air non-woven fabric is 1-3 denier; and/or
The water repellent layer is made of a breathable basement membrane.
8. The ultra-thin puerperium sanitary napkin of claim 1, wherein:
the wrapping layer is made of wet strength paper and/or non-woven fabric, and the non-woven fabric is made of filament lapping and hot rolling reinforcement.
9. The ultra-thin puerperium sanitary napkin according to claim 1, wherein:
the first wet-process-made super absorbent resin absorbent paper layer and the second wet-process-made super absorbent resin absorbent paper layer are both composed of two raw paper layers and super absorbent resin sandwiched between the two raw paper layers;
the first wet-process-made super absorbent resin absorbent paper layer and/or the second wet-process-made super absorbent resin absorbent paper layerThe gram weight of the super absorbent resin absorbent paper layer manufactured by the second wet method is 50-150g/m2；
The content of the super absorbent resin in the first wet-method super absorbent resin absorbent paper layer is 5-40% of the gram weight of the first wet-method super absorbent resin absorbent paper layer, and/or
The content of the super absorbent resin in the second wet-process super absorbent resin absorbent paper layer is 5-40% of the gram weight of the second wet-process super absorbent resin absorbent paper layer.
10. The ultra-thin puerperium sanitary napkin of claim 9, wherein:
the gram weight of the second wet-process manufactured high-absorbent resin absorbent paper layer is larger than that of the first wet-process manufactured high-absorbent resin absorbent paper layer.
11. The ultra-thin puerperium sanitary napkin of claim 10, wherein:
the gram weight of the second wet-process-made super absorbent resin absorbent paper layer is not less than 30g/m and larger than that of the first wet-process-made super absorbent resin absorbent paper layer2。
12. The ultra-thin puerperium sanitary napkin according to any one of claims 1 to 11, wherein:
the thickness of the absorption layer is less than or equal to 2.5 mm.
CN202110807877.1A 2021-07-16 2021-07-16 Ultrathin sanitary towel for puerperium Active CN113499192B (en)

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CN114533405B (en) * 2022-01-24 2024-01-23 佛山南宝高盛高新材料有限公司 Novel elastic absorption core and preparation method thereof
CN114404151A (en) * 2022-01-25 2022-04-29 诺宸股份有限公司 Absorbent article and method of making same
CN114404147A (en) * 2022-01-25 2022-04-29 诺宸股份有限公司 Absorbent article and method of making same
CN115137563A (en) * 2022-07-14 2022-10-04 大连双迪桃花卫生用品有限公司 Disposable sanitary towel composite core and processing method thereof

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