CN112294545A - Full-degradable environment-friendly paper diaper - Google Patents
Full-degradable environment-friendly paper diaper Download PDFInfo
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- CN112294545A CN112294545A CN202011144748.0A CN202011144748A CN112294545A CN 112294545 A CN112294545 A CN 112294545A CN 202011144748 A CN202011144748 A CN 202011144748A CN 112294545 A CN112294545 A CN 112294545A
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- degradable
- sap
- dustcoat
- polylactic acid
- paper diaper
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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
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
-
- 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
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
- A61F13/51405—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material treated or coated, e.g. with moisture repellent agent
-
- 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
-
- 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
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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
- A61F13/53—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
- A61F2013/530131—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 being made in fibre but being not pulp
- A61F2013/530226—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 being made in fibre but being not pulp with polymeric fibres
- A61F2013/530299—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 being made in fibre but being not pulp with polymeric fibres being hydrophilic fibres
-
- 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
- A61F2013/530131—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 being made in fibre but being not pulp
- A61F2013/530226—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 being made in fibre but being not pulp with polymeric fibres
- A61F2013/530313—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 being made in fibre but being not pulp with polymeric fibres being biodegradable
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The invention relates to the technical field of paper diapers, in particular to a fully-degradable environment-friendly paper diaper which comprises an outer cover, an absorber and a connecting mechanism, wherein the absorber comprises a polylactic acid non-woven fabric, an absorbent cotton fiber net, nano bacterial cellulose and degradable SAP, the absorbent is made of degradable materials and is environment-friendly, the water-soluble fibers, lycra fibers and an absorbent cotton fiber layer are matched, the degradable SAP can be limited in a dry state to prevent the degradable SAP from running, the lycra fibers are stretched due to dissolution of the water-soluble fibers after urine is absorbed, the polylactic acid non-woven fabric and the absorbent cotton fiber net move upwards and can be matched with the expanded degradable SAP to prevent the degradable SAP from running, the wearing comfort is improved, the practical significance and the popularization value are realized, and good economic benefits are expected to be generated.
Description
Technical Field
The invention relates to the technical field of paper diapers, in particular to a fully-degradable environment-friendly paper diaper.
Background
With the rapid development of economy and the rapid improvement of the living standard of people, various disposable commodities enter the lives of people, the disposable diaper brings great convenience to the lives of people, and the disposable diaper is convenient to use and can be thrown after being used, so that the disposable diaper becomes an indispensable mother and infant article in life at present.
The diaper has a large number of people in China, and because a large number of polymer films and water-absorbing resins which are difficult to decompose are used in the diaper, secondary pollution to soil and water can be caused if the diaper cannot be properly treated after the diaper is used, the diaper is difficult to degrade in a natural environment, the consumption concept is changed or new production raw materials are not searched for to solve the problems, and otherwise, the problem of environmental pollution caused by the diaper is more and more serious.
The paper diaper made of the degradable material has been developed at present for solving the conflict problem between the paper diaper and the environment, and due to the fact that a high polymer material which is difficult to degrade is not used, the wearing comfort of the paper diaper is poor, the problem of urine side leakage is easy to occur, in addition, the restriction of a rubber band is lacked, so that the water-absorbent resin is easy to deviate, the stacked water-absorbent resin can drive the paper diaper to rub the inner side of a thigh, the wearing experience is seriously influenced, if the paper diaper is researched and developed on the basis of the existing degradable paper diaper, the improvement of the wearing comfort of the paper diaper has positive significance for improving the product competitiveness of the paper diaper and promoting the construction of a green and.
Disclosure of Invention
The invention aims to provide a fully-degradable environment-friendly paper diaper to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme that the urine guiding device comprises an outer cover, an absorber and a connecting mechanism, wherein the outer cover is divided into a front waist area, a crotch area and a rear waist area, concave arc-shaped notches are arranged on two sides of the outer cover, the absorber is arranged on the top surface of the outer cover, the connecting mechanism is arranged at two ends of the outer cover, a waterproof basement membrane formed by copolymerizing PLA and PHA is arranged on the surface of the outer cover, the absorber comprises polylactic acid non-woven fabric, a cotton wool fiber net, nano bacterial cellulose and degradable SAP, a honeycomb urine guiding groove is arranged on the surface of the polylactic acid non-woven fabric through hot pressing, the bottom of the urine guiding groove is connected with the outer cover through 2 layers of connecting nets arranged in parallel, the connecting net is formed by mixing and weaving water-soluble fibers and lycra fibers, fluff pulp is filled between the 2 layers of connecting nets, the cotton wool fiber, and the nano bacterial cellulose and the degradable SAP are mixed and filled in a space formed by the polylactic acid non-woven fabric and the outer cover.
Preferably, the two ends of the outer cover are provided with elastic waist supports which are formed by weaving lycra fibers and hemp fibers in a mixed mode.
Preferably, the mass of the nano-bacterial cellulose is not more than 50% of the mass of the degradable SAP.
Preferably, the arc-shaped notches at the two sides of the outer cover are provided with PLA leakage-proof sheets with surfaces subjected to water repellent treatment, and the leakage-proof sheets are folded.
Preferably, the water-soluble fiber is alginate fiber.
Preferably, the connecting mechanism specifically adopts a magic tape.
Preferably, the hemp fiber is sisal fiber.
The front waist region of the outer cover 1 corresponds to the front waist position of a human body, the crotch region corresponds to the crotch position of the human body, and the rear waist region corresponds to the rear waist position of the human body.
The waterproof basement membrane 12 is formed by copolymerizing PLA and PHA, and refers to a membrane which plays a role in preventing urine from exosmosis; PLA is polylactic acid, which is a biodegradable material, has good air permeability and oxygen permeability, has the characteristic of odor isolation, has the effects of bacteriostasis and mildew resistance, and can inhibit the breeding of peculiar smell caused by mass propagation of bacteria; PHA is a polyhydroxyalkanoate, which is a biodegradable material, and has good biocompatibility as PLA.
The polylactic acid non-woven fabric 21 is a non-woven fabric made of polylactic acid, is soft in hand feeling, can be well adapted to delicate skin at urinary organs, is favorable for urine to pass through quickly due to a porous structure, and has a good moisture absorption function and a good bacteriostatic function. In the specific implementation, needling pores can be arranged on the surface of the specific lactic acid non-woven fabric 21 so as to improve the passing efficiency of urine.
The absorbent cotton fiber net 22 is a net-shaped fiber made of absorbent cotton, and is designed to have a limiting effect on degradable SAP and nano bacterial cellulose to prevent running, and is a degradable material to protect the environment.
The nano bacterial cellulose is cellulose synthesized by microorganisms such as acetobacter xylinum in the prior art, has high water absorption and water retention due to a nano effect, and has excellent hydrophilicity, liquid permeability and biocompatibility.
The degradable SAP refers to degradable environment-friendly Super Absorbent resin (Super Absorbent Polymer), and the degradable Super Absorbent resin is prepared by the same method as the method for preparing the completely biodegradable Super Absorbent resin by reverse suspension polymerization published in the invention patent with the application number of 200710029774.7 in the specific implementation.
The Lycra fiber is a fiber with excellent elasticity in the prior art, and can be freely stretched to 4-7 times of the original length.
The fluff pulp 25 refers to a plant pulp obtained by a series of processes such as bleaching in the prior art, and has soft texture and good water absorption and elasticity.
The water-soluble fiber refers to a fiber with water solubility, a technician can change parameters such as the dissolution time, the dissolution shrinkage rate and the like of the water-soluble fiber according to requirements, and the alginate fiber is adopted in specific implementation.
The leakage-proof sheet 14 is arranged to prevent urine from leaking through the gaps 11 on both sides, the folded leakage-proof sheet 14 can be well adapted to the curve of the thigh, and the outer cover 1 is tightly attached to the thigh without using a rubber band, so that the compression on the thigh is avoided, and the wearing comfort is improved.
From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:
according to the fully-degradable environment-friendly paper diaper provided by the invention, when urine is contacted with the absorber, the urine guide groove can play a urine guide role, so that the urine can be uniformly distributed in the whole absorber, the speed of absorbing the urine by the absorber is favorably improved, the urine side leakage caused by insufficient absorption is prevented, in addition, the urine guide groove can play a certain accommodating effect, and a certain amount of urine can be accommodated in a short time; when urine and polylactic acid non-woven fabrics contact infiltration rapidly, and by the connecting network, the fluff pulp, the cotton wool fiber net, nanometer bacterial cellulose and degradable SAP absorb, the volume expands fast after degradable SAP absorbs the urine, dissolve after water-soluble fibre in the connecting network and the urine contact this moment and make that lycra fibre is stretched under the support of expanded degradable SAP, polylactic acid non-woven fabrics and cotton wool fiber net shift up this moment, can match with expanded degradable SAP, the cotton wool fiber net can play limiting displacement to degradable SAP with the cooperation of polylactic acid non-woven fabrics layer, prevent that the degradable SAP off tracking problem from making panty-shape diapers dress experience worsen.
The invention is made of degradable materials, is environment-friendly, utilizes the matching of the water-soluble fiber, the Lycra fiber and the absorbent cotton fiber layer, can limit the degradable SAP in a dry state to prevent running, can stretch the Lycra fiber after absorbing urine due to the dissolution of the water-soluble fiber, can move up the polylactic acid non-woven fabric and the absorbent cotton fiber net, can be matched with the expanded degradable SAP to prevent the degradable SAP from running, improves the wearing comfort, has practical significance and popularization value, and can be expected to generate good economic benefit.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic (partial) cross-sectional configuration of the absorbent body;
in the figure: the diaper comprises an outer cover 1, a notch 11, a waterproof basement membrane 12, an elastic waist support 13, a leakage-proof sheet 14, an absorber 2, a polylactic acid non-woven fabric 21, a cotton wool fiber net 22, a urethral catheterization groove 23, a connecting net 24, fluff pulp 25 and a connecting mechanism 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Combine fig. 1-2, a full degradation environmental protection panty-shape diapers, including dustcoat 1, absorber 2 and coupling mechanism 3, dustcoat 1 divide into preceding lumbar region, crotch portion district and back lumbar region, dustcoat 1 both sides are equipped with the arc breach 11 of indent, the arc breach 11 department of dustcoat 1 both sides is provided with the PLA leak protection piece 14 that the surface was water repellent treatment, leak protection piece 14 is fold and fold the form, dustcoat 1 both ends are provided with elasticity waist protector 13, elasticity waist protector 13 comprises lycra fibre, sisal fibre mixed weaving, absorber 2 locates dustcoat 1 top surface, coupling mechanism 3 set up in dustcoat 1 both ends, coupling mechanism 3 specifically adopts the thread gluing area, dustcoat 1 surface is provided with the waterproof basement membrane 12 that is formed by PLA and PHA copolymerization, absorber 2 includes polylactic acid non-woven fabrics 21, absorbent cotton fiber net 22, nanometer bacterial cellulose and degradable SAP, the surface of polylactic acid non-woven fabrics 21 is provided with through the hot pressing and is alveolate catheterization groove 23, catheterization groove 23 bottom through 2 layers of parallel arrangement's connecting net 24 with dustcoat 1 links to each other, connecting net 24 is woven by the alginate fibre of water-soluble and lycra fibre mixture and is constituted, 2 layers be filled with fluff pulp 25 between connecting net 24, cotton wool fibre net 22 set up in polylactic acid non-woven fabrics 21 bottom surface, the nanometer bacterial cellulose with degradable SAP mix pack in polylactic acid non-woven fabrics 21 with in the space that dustcoat 1 constitutes, the nanometer bacterial cellulose quality is for pass 10% of degradable SAP quality.
Example 2
Combine fig. 1-2, a full degradation environmental protection panty-shape diapers, including dustcoat 1, absorber 2 and coupling mechanism 3, dustcoat 1 divide into preceding lumbar region, crotch portion district and back lumbar region, dustcoat 1 both sides are equipped with the arc breach 11 of indent, the arc breach 11 department of dustcoat 1 both sides is provided with the PLA leak protection piece 14 that the surface was water repellent treatment, leak protection piece 14 is fold and fold the form, dustcoat 1 both ends are provided with elasticity waist protector 13, elasticity waist protector 13 comprises lycra fibre, sisal fibre mixed weaving, absorber 2 locates dustcoat 1 top surface, coupling mechanism 3 set up in dustcoat 1 both ends, coupling mechanism 3 specifically adopts the thread gluing area, dustcoat 1 surface is provided with the waterproof basement membrane 12 that is formed by PLA and PHA copolymerization, absorber 2 includes polylactic acid non-woven fabrics 21, absorbent cotton fiber net 22, nanometer bacterial cellulose and degradable SAP, the surface of polylactic acid non-woven fabrics 21 is provided with through the hot pressing and is alveolate catheterization groove 23, catheterization groove 23 bottom through 2 layers of parallel arrangement's connecting net 24 with dustcoat 1 links to each other, connecting net 24 is woven by the alginate fibre of water-soluble and lycra fibre mixture and is constituted, 2 layers be filled with fluff pulp 25 between connecting net 24, cotton wool fibre net 22 set up in polylactic acid non-woven fabrics 21 bottom surface, the nanometer bacterial cellulose with degradable SAP mix pack in polylactic acid non-woven fabrics 21 with in the space that dustcoat 1 constitutes, the nanometer bacterial cellulose quality is for passing 20% of degradable SAP quality.
Example 3
Combine fig. 1-2, a full degradation environmental protection panty-shape diapers, including dustcoat 1, absorber 2 and coupling mechanism 3, dustcoat 1 divide into preceding lumbar region, crotch portion district and back lumbar region, dustcoat 1 both sides are equipped with the arc breach 11 of indent, the arc breach 11 department of dustcoat 1 both sides is provided with the PLA leak protection piece 14 that the surface was water repellent treatment, leak protection piece 14 is fold and fold the form, dustcoat 1 both ends are provided with elasticity waist protector 13, elasticity waist protector 13 comprises lycra fibre, sisal fibre mixed weaving, absorber 2 locates dustcoat 1 top surface, coupling mechanism 3 set up in dustcoat 1 both ends, coupling mechanism 3 specifically adopts the thread gluing area, dustcoat 1 surface is provided with the waterproof basement membrane 12 that is formed by PLA and PHA copolymerization, absorber 2 includes polylactic acid non-woven fabrics 21, absorbent cotton fiber net 22, nanometer bacterial cellulose and degradable SAP, the surface of polylactic acid non-woven fabrics 21 is provided with through the hot pressing and is alveolate catheterization groove 23, catheterization groove 23 bottom through 2 layers of parallel arrangement's connecting net 24 with dustcoat 1 links to each other, connecting net 24 is woven by the alginate fibre of water-soluble and lycra fibre mixture and is constituted, 2 layers be filled with fluff pulp 25 between connecting net 24, cotton wool fibre net 22 set up in polylactic acid non-woven fabrics 21 bottom surface, the nanometer bacterial cellulose with degradable SAP mix pack in polylactic acid non-woven fabrics 21 with in the space that dustcoat 1 constitutes, the nanometer bacterial cellulose quality is for pass 30% of degradable SAP quality.
Example 4
Combine fig. 1-2, a full degradation environmental protection panty-shape diapers, including dustcoat 1, absorber 2 and coupling mechanism 3, dustcoat 1 divide into preceding lumbar region, crotch portion district and back lumbar region, dustcoat 1 both sides are equipped with the arc breach 11 of indent, the arc breach 11 department of dustcoat 1 both sides is provided with the PLA leak protection piece 14 that the surface was water repellent treatment, leak protection piece 14 is fold and fold the form, dustcoat 1 both ends are provided with elasticity waist protector 13, elasticity waist protector 13 comprises lycra fibre, sisal fibre mixed weaving, absorber 2 locates dustcoat 1 top surface, coupling mechanism 3 set up in dustcoat 1 both ends, coupling mechanism 3 specifically adopts the thread gluing area, dustcoat 1 surface is provided with the waterproof basement membrane 12 that is formed by PLA and PHA copolymerization, absorber 2 includes polylactic acid non-woven fabrics 21, absorbent cotton fiber net 22, nanometer bacterial cellulose and degradable SAP, the surface of polylactic acid non-woven fabrics 21 is provided with through the hot pressing and is alveolate catheterization groove 23, catheterization groove 23 bottom through 2 layers of parallel arrangement's connecting net 24 with dustcoat 1 links to each other, connecting net 24 is woven by the alginate fibre of water-soluble and lycra fibre mixture and is constituted, 2 layers be filled with fluff pulp 25 between connecting net 24, cotton wool fibre net 22 set up in polylactic acid non-woven fabrics 21 bottom surface, the nanometer bacterial cellulose with degradable SAP mix pack in polylactic acid non-woven fabrics 21 with in the space that dustcoat 1 constitutes, the nanometer bacterial cellulose quality is for passing 40% of degradable SAP quality.
TABLE 1 physical Properties test of examples
| Example numbering | WVTR/g/m2·24h | Hydrostatic pressure/mmH resistance2O | Biodegradability |
| 1 | 8725 | 722 | Is excellent in |
| 2 | 8950 | 722 | Is excellent in |
| 3 | 9145 | 723 | Is excellent in |
| 4 | 9190 | 724 | Is excellent in |
The working principle of the invention is as follows: when urine contacts the absorber 2, the urine guiding groove 23 can play a urine guiding role, so that the urine can be uniformly distributed in the whole absorber 2, the speed of absorbing the urine by the absorber 2 is improved, the urine side leakage caused by the insufficient absorption is prevented, in addition, the urine guiding groove 23 can play a certain accommodating effect, and a certain amount of urine can be accommodated in a short time; when urine and polylactic acid non-woven fabrics 21 contact and ooze down rapidly, and by connecting net 24, fluff pulp 25, absorbent cotton fiber net 22, nanometer bacterial cellulose and degradable SAP absorb, the volume expands fast after degradable SAP absorbs urine, dissolve after water-soluble fibre in the connecting net 24 contacts with urine this moment and make the lycra fibre stretched under the support of expanded degradable SAP, polylactic acid non-woven fabrics 21 and absorbent cotton fiber net 22 move up this moment, can match with expanded degradable SAP, absorbent cotton fiber net 22 and the cooperation of polylactic acid non-woven fabrics 21 layer can play limiting displacement to degradable SAP, prevent that the off tracking problem of degradable SAP from making diaper dress experience worsen.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a full degradation environmental protection panty-shape diapers, includes dustcoat (1), absorber (2) and coupling mechanism (3), dustcoat (1) divide into preceding lumbar region, crotch portion district and back lumbar region, dustcoat (1) both sides are equipped with arc breach (11) of indent, absorber (2) are located dustcoat (1) top surface, coupling mechanism (3) set up in dustcoat (1) both ends, its characterized in that:
the surface of the outer cover (1) is provided with a waterproof basement membrane (12) formed by copolymerizing PLA and PHA,
the absorber (2) comprises a polylactic acid non-woven fabric (21), an absorbent cotton fiber net (22), nano bacterial cellulose and degradable SAP;
the surface of the polylactic acid non-woven fabric (21) is provided with a honeycomb-shaped urethral catheterization groove (23) through hot pressing, the bottom of the urethral catheterization groove (23) is connected with the outer cover (1) through 2 layers of parallel connecting nets (24), the connecting net (24) is formed by mixing and weaving water-soluble fibers and Lycra fibers, and fluff pulp (25) is filled between the 2 layers of the connecting nets (24);
the absorbent cotton fiber net (22) is arranged on the bottom surface of the polylactic acid non-woven fabric (21);
the nano bacterial cellulose and the degradable SAP are mixed and filled in a space formed by the polylactic acid non-woven fabric (21) and the outer cover (1).
2. The fully degradable environment-friendly paper diaper according to claim 1, wherein: elastic waist supports (13) are arranged at two ends of the outer cover (1), and the elastic waist supports (13) are formed by mixing and weaving Lycra fibers and fibrilia.
3. The fully degradable environment-friendly paper diaper according to claim 1, wherein: the mass of the nano bacterial cellulose is not more than 50% of the mass of the degradable SAP.
4. The fully degradable environment-friendly paper diaper according to claim 1, wherein: arc breach (11) department of dustcoat (1) both sides is provided with PLA leak protection piece (14) that the surface was done water repellent treatment, leak protection piece (14) are fold overlapping form.
5. The fully degradable environment-friendly paper diaper according to claim 1, wherein: the water-soluble fiber is specifically alginate fiber.
6. The fully degradable environment-friendly paper diaper according to claim 1, wherein: the connecting mechanism (3) is specifically a magic tape.
7. The fully degradable environment-friendly paper diaper as claimed in claim 2, wherein: the hemp fiber is concretely sisal hemp fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144748.0A CN112294545A (en) | 2020-10-23 | 2020-10-23 | Full-degradable environment-friendly paper diaper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144748.0A CN112294545A (en) | 2020-10-23 | 2020-10-23 | Full-degradable environment-friendly paper diaper |
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Cited By (1)
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| CN116942425A (en) * | 2023-07-19 | 2023-10-27 | 东莞苏氏卫生用品有限公司 | Baby diaper containing fibers with strong water absorbability and production method thereof |
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