CN104873333A - Biodegradable disposable nursing product and production method thereof - Google Patents
Biodegradable disposable nursing product and production method thereof Download PDFInfo
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- CN104873333A CN104873333A CN201510195889.8A CN201510195889A CN104873333A CN 104873333 A CN104873333 A CN 104873333A CN 201510195889 A CN201510195889 A CN 201510195889A CN 104873333 A CN104873333 A CN 104873333A
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- fiber
- polylactic
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- absorbed layer
- wood pulp
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- 230000000474 nursing effect Effects 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 239000000835 fiber Substances 0.000 claims abstract description 130
- 239000010410 layer Substances 0.000 claims abstract description 120
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 60
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 30
- 239000002344 surface layer Substances 0.000 claims abstract description 30
- 239000002245 particle Substances 0.000 claims abstract description 21
- 239000002253 acid Substances 0.000 claims description 72
- 229920002678 cellulose Polymers 0.000 claims description 52
- 239000001913 cellulose Substances 0.000 claims description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 25
- 229920000642 polymer Polymers 0.000 claims description 20
- 230000000694 effects Effects 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 238000007731 hot pressing Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 229920000747 poly(lactic acid) Polymers 0.000 abstract description 13
- 239000004626 polylactic acid Substances 0.000 abstract description 13
- 238000010521 absorption reaction Methods 0.000 abstract description 10
- 230000006870 function Effects 0.000 abstract description 8
- 206010070834 Sensitisation Diseases 0.000 abstract description 2
- 230000008313 sensitization Effects 0.000 abstract description 2
- 239000012792 core layer Substances 0.000 abstract 2
- 241000894006 Bacteria Species 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000005764 inhibitory process Effects 0.000 abstract 1
- 230000000844 anti-bacterial effect Effects 0.000 description 8
- 239000012530 fluid Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 206010021639 Incontinence Diseases 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002175 menstrual effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Classifications
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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
-
- 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
- A61F13/15577—Apparatus or processes for manufacturing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/225—Mixtures of macromolecular compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/62—Compostable, hydrosoluble or hydrodegradable 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
- A61F13/15203—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
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/30—Compounds of undetermined constitution extracted from natural sources, e.g. Aloe Vera
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Materials Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a biodegradable disposable nursing product and a production method thereof. The biodegradable disposable nursing product comprises a surface layer, a core layer and a bottom layer. Nonwoven fabric made of polylactic acid fibers or nonwoven fabric formed by mixing the polylactic acid fibers with wood pulp fibers is selected as the surface layer. The core layer comprises a first absorption layer and a second absorption layer which are sequentially arranged from top to bottom. The nonwoven fabric formed by mixing the polylactic acid fibers with the wood pulp fibers is selected as the first absorption layer and the second absorption layer. Macromolecular water-absorbing particles are infiltrated in the first absorption layer and the second absorption layer evenly. The nonwoven fabric made of the polylactic acid fibers is selected as the bottom layer. The polylactic acid fibers can guarantee surface dryness and less proneness to sensitization, have good bacteria inhibition and peculiar smell removal functions and also have high biodegradability, so that environmental burdens are not caused and people can live easily and freely in a beautiful green environment.
Description
Technical field
The present invention relates to a kind of nursing materials, especially relate to a kind of bio-degradable expendable nursing materials and preparation method thereof.
Background technology
Have statistics to show, a women will experience 60 days menstrual phases for 1 year, and within 1 year, approximately need 480 sanitary towels, calculate according to a slice sanitary towel weight 10 grams, thus 2,000,000,000 women will produce the rubbish of about 9,600,000 tons for 1 year; In addition, along with the development of economy and constantly bringing forth new ideas of product quality, the consumption of Chinese children diaper grows with each passing day; And along with the arrival of aged tendency of population, the incontinent patients number such as patient, patient with severe symptoms of long-term bed also constantly increases, and incontinence article also receives much concern.The volume ratio of occupying due to these " white garbages " is larger, carry out landfill disposal according to existing processing method to need to consume a large amount of landfill yards, the serious problems seized good farmland, arable land with the mankind, corrode human habitat are there are, thus, produce and use degradable disponsable nursing materials, changing material therefor in existing product, after making it to abandon and being buried in underground, can degraded be produced through the regular hour, return the living environment of mankind's green, very necessary.
Chinese patent CN 2868262 disclose a kind of can the sanitary belt of whole degradation treatment, be made up of degraded wood pulp paper, degradation water prick nonwoven cloth, degraded wood pulp paper is positioned on degraded waterproof wood pulp paper, degradation water prick nonwoven cloth to be positioned on degraded wood pulp paper and with degraded waterproof wood pulp paper compound.Advantage: one is the appropriate design of wood pulp paper and substratum for waterproofing and contact surface layer of degrading in sanitary belt, can not only effectively absorb a small amount of liquid, and can after sanitary belt uses, osmosis is slowly produced to substratum for waterproofing and contact layer, force watertight composition and contact layer to break up gradually, degrade, effectively protect environment; Two is greatly reduce production cost, meets the life of people and needs at heart.But it is only applicable to absorb a small amount of liquid, function singleness, can not meet the actual demand of people.
Chinese patent CN 101491687 discloses a kind of corn polylactic acid fiber sanitary napkin, and top layer adopts adopting polylactic acid fibers spun-laced nonwoven fabric, and packed layer (internal layer) adopts Semen Maydis polylactic acid short-fiber, and water barrier adopts adopting polylactic acid fibers space fabric.Sanitary towel of the present invention has gathered the advantage of polylactic acid fibre and hydro-entangled non-woven fabric, soft, evenly have good breathability, water absorption, skin-friendly, and product has excellent antibiotic property, antibacterial and mildew resistance, and fully biodegradable.But it still exists complex manufacturing, be difficult to realize sanitary towel's water absorbent rate of national Specification must be greater than the standard of 7 times and the feature of function singleness, the market thus and use colony narrow, popularization and application is subject to certain restrictions.
Summary of the invention
In order to overcome the deficiency that prior art exists, the invention provides a kind ofly not rupture, safety is good, water absorption is strong, water-retaining property is good bio-degradable expendable nursing materials and preparation method thereof.
A kind of bio-degradable expendable nursing materials, comprise the surface layer, sandwich layer and the bottom that from top to bottom arrange in turn, described surface layer adopts the non-woven fabrics be made up of acid fiber by polylactic or the non-woven fabrics being mixed with wood pulp cellulose by acid fiber by polylactic and make, described sandwich layer comprises the first absorbed layer and the second absorbed layer that from top to bottom arrange in turn, first absorbed layer and the second absorbed layer all adopt and are mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, and are evenly impregnated with water absorbing polymer particle respectively in described first absorbed layer and the second absorbed layer; Described bottom adopts the non-woven fabrics be made up of acid fiber by polylactic.
Surface layer of the present invention can absorbing fluid dredge and enter sandwich layer fast, and leakproof is only oozed, polylactic acid provide simultaneously good antibacterial, eliminate the unusual smell and the function such as biodegradable; Sandwich layer contains superabsorbent water water absorbing polymer particle, and absorbing fluid fully and completely; Containing the ventilative bottom of acid fiber by polylactic antibacterial and eliminate the unusual smell simultaneously, steam can be derived rapidly, human body is kept fit state at any time.The present invention can play integral adhesive after the heating, need not carry out bonding additionally by adhesive again, can not affect water absorbing properties, and in addition, wood pulp cellulose can also play the effect increasing absorption speed.
As preferably, described surface layer adopts and is mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, and wherein, the percentage by weight of acid fiber by polylactic is 20 ~ 50%, and the percentage by weight of wood pulp cellulose is 50 ~ 80%.The rapid absorbing fluid of energy is also dredged fast and is entered sandwich layer, and leakproof is only oozed, and acid fiber by polylactic provides the good antibacterial and function that eliminates the unusual smell simultaneously, extends working time.
As preferably, described surface layer adopts the non-woven fabrics be made up of acid fiber by polylactic.
As preferably, in described first absorbed layer, the percentage by weight of acid fiber by polylactic is 20 ~ 40%, and the percentage by weight of wood pulp cellulose is 60 ~ 80%; In second absorbed layer, the percentage by weight of acid fiber by polylactic is 20 ~ 40%, and the percentage by weight of wood pulp cellulose is 60 ~ 80%.
Acid fiber by polylactic is adopted to mix with wood pulp cellulose, important impact is there is in the weight proportion of acid fiber by polylactic and wood pulp cellulose for the performance of product, along with the increase of acid fiber by polylactic proportioning, its breathability and drainability increase, but the mechanical property such as tear index and folding strength reduces, therefore, comprehensive consideration need be carried out, to obtain applicable appropriate proportioning of the present invention.
As preferably, described surface thickness is 0.1 ~ 1.0mm.While guarantee absorbtivity, improve the comfort level of user.
As preferably, described underlayer thickness is 0.1 ~ 1.0mm.While guarantee absorbtivity, improve the comfort level of user.
As preferably, a kind of preparation method of bio-degradable expendable nursing materials, comprises the steps:
(1) by bottom fiber tiling on the table, below bottom, air exhauster and vibrator is provided with;
(2) under the effect of air exhauster, by the second absorbed layer fleece-laying on bottom fiber;
(3) water absorbing polymer particle is laid on the second absorbed layer fiber, under the effect of air exhauster and vibrator, makes water absorbing polymer particle evenly infiltrate in the second absorbed layer fiber;
(4) under the effect of air exhauster, by the first absorbed layer fleece-laying on the second absorbed layer fiber;
(5) water absorbing polymer particle is laid on the first absorbed layer fiber, under the effect of air exhauster and vibrator, makes water absorbing polymer particle evenly infiltrate in the first absorbed layer fiber;
(6) under the effect of air exhauster, by surface layer fleece-laying on the first absorbed layer fiber;
(7) carry out adding hot pressing, make the fiber between the layer of the fiber in each layer and layer adhesion-molded, rolling after cooling, cut and get final product;
The composite fibre that described surface layer fiber adopts acid fiber by polylactic or is made up of acid fiber by polylactic and wood pulp cellulose;
Described first absorbed layer fiber to be mixed with wood pulp cellulose by acid fiber by polylactic and forms, and the second absorbed layer fiber to be mixed with wood pulp cellulose by acid fiber by polylactic and forms;
Described bottom fiber adopts acid fiber by polylactic.
As preferably, described surface layer fiber to be mixed with wood pulp cellulose by acid fiber by polylactic and forms, and wherein, the percentage by weight of acid fiber by polylactic is 20 ~ 50%, and the percentage by weight of wood pulp cellulose is 50 ~ 80%.
As preferably, described first absorbed layer fiber to be mixed with wood pulp cellulose by acid fiber by polylactic and forms, and the percentage by weight of acid fiber by polylactic is 20 ~ 40%, and the percentage by weight of wood pulp cellulose is 60 ~ 80%; Second absorbed layer fiber to be mixed with wood pulp cellulose by acid fiber by polylactic and forms, and the percentage by weight of acid fiber by polylactic is 20 ~ 40%, and the percentage by weight of wood pulp cellulose is 60 ~ 80%.
As preferably, described surface thickness is 0.1 ~ 1.0mm, and underlayer thickness is 0.1 ~ 1.0mm.
The hydrophobic performance of acid fiber by polylactic of the present invention provides surface dry may just as well for disposable nursing materials, the smooth surface of acid fiber by polylactic provides not easily sensitization for disposable nursing materials, and polylactic acid is with weak lactic acid characteristic, there is the well antibacterial and function that eliminates the unusual smell, steam can be derived rapidly, human body is kept fit state at any time.The present invention not only has pro-skin, softness, the performance such as comfortable, and easily can realize biodegradation, can not cause burden to environment, can bring the mankind and live more easily and beautiful green environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but protection scope of the present invention is not limited to this.
Embodiment 1
With reference to Fig. 1, a kind of bio-degradable expendable nursing materials, comprise surface layer 1, sandwich layer and the bottom 2 from top to bottom arranged in turn, described surface layer 1 adopts and is mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, wherein, the percentage by weight of acid fiber by polylactic is 35%, the percentage by weight of wood pulp cellulose is 65%, and the rapid absorbing fluid of energy is also dredged fast and entered sandwich layer, and leakproof is only oozed, acid fiber by polylactic provides the good antibacterial and function that eliminates the unusual smell simultaneously, extends working time.
Described sandwich layer comprises the first absorbed layer 3 and the second absorbed layer 4 from top to bottom arranged in turn, first absorbed layer 3 and the second absorbed layer 4 all adopt and are mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, in described first absorbed layer 3, the percentage by weight of acid fiber by polylactic is 25%, and the percentage by weight of wood pulp cellulose is 75%; In second absorbed layer 4, the percentage by weight of acid fiber by polylactic is 30%, and the percentage by weight of wood pulp cellulose is 70%; Evenly water absorbing polymer particle is impregnated with respectively in described first absorbed layer 3 and the second absorbed layer 4.
Described bottom 2 adopts the non-woven fabrics be made up of acid fiber by polylactic.Described surface thickness is 0.1mm, and underlayer thickness is 0.1mm.
The preparation method of above-mentioned bio-degradable expendable nursing materials, comprises the steps:
(1) by bottom fiber tiling on the table, below bottom, air exhauster and vibrator is provided with;
(2) under the effect of air exhauster, by the second absorbed layer fleece-laying on bottom fiber;
(3) water absorbing polymer particle is laid on the second absorbed layer fiber, under the effect of air exhauster and vibrator, makes water absorbing polymer particle evenly infiltrate in the second absorbed layer fiber;
(4) under the effect of air exhauster, by the first absorbed layer fleece-laying on the second absorbed layer fiber;
(5) water absorbing polymer particle is laid on the first absorbed layer fiber, under the effect of air exhauster and vibrator, makes water absorbing polymer particle evenly infiltrate in the first absorbed layer fiber;
(6) under the effect of air exhauster, by surface layer fleece-laying on the first absorbed layer fiber;
(7) carry out adding hot pressing, make the fiber between the layer of the fiber in each layer and layer adhesion-molded, rolling after cooling, cut and get final product.
Surface layer of the present invention can absorbing fluid dredge and enter sandwich layer fast, and leakproof is only oozed, polylactic acid provide simultaneously good antibacterial, eliminate the unusual smell and the function such as biodegradable; Sandwich layer contains superabsorbent water water absorbing polymer particle and forms, and absorbing fluid fully and completely; Containing the ventilative bottom of acid fiber by polylactic antibacterial and eliminate the unusual smell simultaneously, steam can be derived rapidly, human body be kept fit state at any time, extends working time.The present invention can play integral adhesive effect after the heating, need not carry out bonding additionally by adhesive again, can not affect water absorbing properties, in addition, and the flow conductivity effect can also playing increase absorption speed that wood pulp cellulose is good.
Embodiment 2
With reference to Fig. 1, a kind of bio-degradable expendable nursing materials, comprise surface layer 1, sandwich layer and the bottom 2 from top to bottom arranged in turn, described surface layer 1 adopts the non-woven fabrics be made up of acid fiber by polylactic, described sandwich layer comprises the first absorbed layer 3 and the second absorbed layer 4 from top to bottom arranged in turn, first absorbed layer 3 and the second absorbed layer 4 all adopt and are mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, in described first absorbed layer 3, the percentage by weight of acid fiber by polylactic is 20%, and the percentage by weight of wood pulp cellulose is 80%; In second absorbed layer 4, the percentage by weight of acid fiber by polylactic is 40%, and the percentage by weight of wood pulp cellulose is 60%.
Evenly water absorbing polymer particle is impregnated with respectively in described first absorbed layer 3, second absorbed layer 4; Described bottom 2 adopts the non-woven fabrics be made up of acid fiber by polylactic.Described surface thickness is 0.5mm, and described underlayer thickness is 0.5mm.
Embodiment 3
With reference to Fig. 1, a kind of bio-degradable expendable nursing materials, comprise surface layer 1, sandwich layer and the bottom 2 from top to bottom arranged in turn, described surface layer 1 adopts and is mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, described sandwich layer comprises the first absorbed layer 3 and the second absorbed layer 4 from top to bottom arranged in turn, first absorbed layer 3 and the second absorbed layer 4 all adopt and are mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, and are evenly impregnated with water absorbing polymer particle in described first absorbed layer 3, second absorbed layer 4 respectively; Described bottom 2 adopts the non-woven fabrics be made up of acid fiber by polylactic.
In described surface layer 1, the percentage by weight of acid fiber by polylactic is 45%, and the percentage by weight of wood pulp cellulose is 55%; In first absorbed layer 3, the percentage by weight of acid fiber by polylactic is 30%, and the percentage by weight of wood pulp cellulose is 70%; In second absorbed layer 4, the percentage by weight of acid fiber by polylactic is 30%, and the percentage by weight of wood pulp cellulose is 70%.Described surface thickness is 0.3mm, and described underlayer thickness is 0.3mm.
Embodiment 4
With reference to Fig. 1, a kind of bio-degradable expendable nursing materials, comprise surface layer 1, sandwich layer and the bottom 2 from top to bottom arranged in turn, described surface layer 1 adopts and is mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, described sandwich layer comprises the first absorbed layer 3 and the second absorbed layer 4 from top to bottom arranged in turn, first absorbed layer 3 and the second absorbed layer 4 all adopt and are mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, and are evenly impregnated with water absorbing polymer particle in described first absorbed layer 3, second absorbed layer 4 respectively; Described bottom 2 adopts the non-woven fabrics be made up of acid fiber by polylactic.
In described surface layer 1, the percentage by weight of acid fiber by polylactic is 50%, and the percentage by weight of wood pulp cellulose is 50%; In first absorbed layer 3, the percentage by weight of acid fiber by polylactic is 40%, and the percentage by weight of wood pulp cellulose is 60%; In second absorbed layer 4, the percentage by weight of acid fiber by polylactic is 20%, and the percentage by weight of wood pulp cellulose is 80%.Described surface thickness is 0.4mm, and described underlayer thickness is 0.6mm.
Claims (10)
1. a bio-degradable expendable nursing materials, comprise the surface layer, sandwich layer and the bottom that from top to bottom arrange in turn, it is characterized in that: described surface layer adopts the non-woven fabrics be made up of acid fiber by polylactic or the non-woven fabrics being mixed with wood pulp cellulose by acid fiber by polylactic and make, described sandwich layer comprises the first absorbed layer and the second absorbed layer that from top to bottom arrange in turn, first absorbed layer and the second absorbed layer all adopt and are mixed with wood pulp cellulose by acid fiber by polylactic and the non-woven fabrics made, and are evenly impregnated with water absorbing polymer particle respectively in described first absorbed layer and the second absorbed layer; Described bottom adopts the non-woven fabrics be made up of acid fiber by polylactic.
2. bio-degradable expendable nursing materials according to claim 1, it is characterized in that: the non-woven fabrics that described surface layer employing is mixed with wood pulp cellulose by acid fiber by polylactic and makes, wherein, the percentage by weight of acid fiber by polylactic is 20 ~ 50%, and the percentage by weight of wood pulp cellulose is 50 ~ 80%.
3. bio-degradable expendable nursing materials according to claim 1, is characterized in that: described surface layer adopts the non-woven fabrics be made up of acid fiber by polylactic.
4. bio-degradable expendable nursing materials according to claim 1, is characterized in that: in described first absorbed layer, and the percentage by weight of acid fiber by polylactic is 20 ~ 40%, and the percentage by weight of wood pulp cellulose is 60 ~ 80%; In second absorbed layer, the percentage by weight of acid fiber by polylactic is 20 ~ 40%, and the percentage by weight of wood pulp cellulose is 60 ~ 80%.
5. bio-degradable expendable nursing materials according to claim 1, is characterized in that: described surface thickness is 0.1 ~ 1.0mm.
6. bio-degradable expendable nursing materials according to claim 1, is characterized in that: described underlayer thickness is 0.1 ~ 1.0mm.
7. a preparation method for bio-degradable expendable nursing materials described in claim 1, is characterized in that comprising the steps:
(1) by bottom fiber tiling on the table, below bottom, air exhauster and vibrator is provided with;
(2) under the effect of air exhauster, by the second absorbed layer fleece-laying on bottom fiber;
(3) water absorbing polymer particle is laid on the second absorbed layer fiber, under the effect of air exhauster and vibrator, makes water absorbing polymer particle evenly infiltrate in the second absorbed layer fiber;
(4) under the effect of air exhauster, by the first absorbed layer fleece-laying on the second absorbed layer fiber;
(5) water absorbing polymer particle is laid on the first absorbed layer fiber, under the effect of air exhauster and vibrator, makes water absorbing polymer particle evenly infiltrate in the first absorbed layer fiber;
(6) under the effect of air exhauster, by surface layer fleece-laying on the first absorbed layer fiber;
(7) carry out adding hot pressing, make the fiber between the layer of the fiber in each layer and layer adhesion-molded, rolling after cooling, cut and get final product;
The composite fibre that described surface layer fiber adopts acid fiber by polylactic or is made up of acid fiber by polylactic and wood pulp cellulose;
Described first absorbed layer fiber to be mixed with wood pulp cellulose by acid fiber by polylactic and forms, and the second absorbed layer fiber to be mixed with wood pulp cellulose by acid fiber by polylactic and forms;
Described bottom fiber adopts acid fiber by polylactic.
8. the preparation method of bio-degradable expendable nursing materials according to claim 7, it is characterized in that: described surface layer fiber is mixed by acid fiber by polylactic and wood pulp cellulose and forms, wherein, the percentage by weight of acid fiber by polylactic is 20 ~ 50%, and the percentage by weight of wood pulp cellulose is 50 ~ 80%.
9. the preparation method of bio-degradable expendable nursing materials according to claim 7, it is characterized in that: described first absorbed layer fiber is mixed by acid fiber by polylactic and wood pulp cellulose and forms, the percentage by weight of acid fiber by polylactic is 20 ~ 40%, and the percentage by weight of wood pulp cellulose is 60 ~ 80%; Second absorbed layer fiber is mixed by acid fiber by polylactic and wood pulp cellulose and forms, and the percentage by weight of acid fiber by polylactic is 20 ~ 40%, and the percentage by weight of wood pulp cellulose is 60 ~ 80%.
10. the preparation method of bio-degradable expendable nursing materials according to claim 7, it is characterized in that: described surface thickness is 0.1 ~ 1.0mm, underlayer thickness is 0.1 ~ 1.0mm.
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| CN104873333B (en) | 2018-04-20 |
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Denomination of invention: Biodegradable disposable care products and their preparation methods Granted publication date: 20180420 Pledgee: Zhejiang Nanxun Rural Commercial Bank Co.,Ltd. Lin'an Branch Pledgor: Zhejiang Zhenyu water absorbing material technology Co.,Ltd. Registration number: Y2024980024265 |