CN108560276A - A kind of environment-friendly type synthetic leather and preparation method thereof - Google Patents
A kind of environment-friendly type synthetic leather and preparation method thereof Download PDFInfo
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- CN108560276A CN108560276A CN201810271098.2A CN201810271098A CN108560276A CN 108560276 A CN108560276 A CN 108560276A CN 201810271098 A CN201810271098 A CN 201810271098A CN 108560276 A CN108560276 A CN 108560276A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/02—Cellulose; Modified cellulose
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/02—Cellulose; Modified cellulose
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2493/00—Characterised by the use of natural resins; Derivatives thereof
- C08J2493/02—Shellac
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention discloses a kind of environment-friendly type synthetic leather, in parts by weight, are made of following composition：40 50 parts of staple, 20 30 parts of bamboo powder, 8 15 parts of thermoplastic resin cosmetics, 15 30 parts of radish skin, 15 parts of shellac.The invention also discloses the preparation methods of the environment-friendly type synthetic leather.Raw material environmental protection that the present invention selected prepare, does not select polyurethane resin, avoids using N, the toxic chemicals solvent such as N ' dimethylformamides, toluene, the safe preparation process of synthetic leather, pollution-free；Synthetic leather that the present invention is prepared is soft, resilience is good, has a stronger wearability, but also with heat resistance, light resistance, water resistance, can the chemical solvents such as methanol tolerant, good air permeability.
Description
Technical field
The present invention relates to a kind of environment-friendly type synthetic leather and preparation method thereof.
Background technology
Currently, the production technology of synthetic leather mainly has two kinds of wet method and dry method, dry method polyurethane process hides work is whether used
Skill or wet polyurethane leather-making technology are required for using a large amount of toxic organic solvents, such as in synthetic leather production process
N, N '-dimethyl formamide, acetone, toluene etc..
Most of synthetic leather on the market, all using polyurethane resin as main material, and as previously mentioned, polyurethane tree
Fat not only needs to use toxic solvent in process of production, itself also contains not volatile organic matter, therefore produce
Synthetic leather usually has larger peculiar smell, and human body may be damaged by dealing with improperly, also, polyurethane resin itself is not degradable,
Used poisonous and hazardous organic solvent, needs a large amount of follow-up work to handle in its preparation process, otherwise can be to environment
Cause very big harm, this namely current synthetic leather industry not environmentally the main reason for, and limitation synthetic leather development of manufacturing
A key factor.
Invention content
The present invention for overcome the deficiencies in the prior art, provides a kind of environment-friendly type synthetic leather and preparation method thereof.
To achieve the goals above, the present invention uses following technical scheme：
A kind of environment-friendly type synthetic leather is made of following composition in parts by weight：40-50 parts of staple, bamboo powder 20-30
Part, 8-15 parts of thermoplastic resin cosmetics, 15-30 parts of radish skin, 1-5 parts of shellac.
Preferably, the radish skin is ternip skin, ternip skin intrinsic colour is thin, convenient for making the skin of other colors
Leather.
Preferably, the thermoplastic resin is one or more of polyethylene, polypropylene, polyvinyl chloride.
Preferably, the environment-friendly type synthetic leather includes base's knead dough layer, wherein count in parts by weight, base by below at
Part composition：25-30 parts of staple, 10-15 parts of bamboo powder, 1-3 parts of shellac, face layer are made of following composition：15-20 parts of staple, bamboo powder
10-15 parts, 8-15 parts of thermoplastic resin cosmetics, 15-30 parts of radish skin, 1-2 parts of shellac.
The invention also discloses a kind of preparation method of environment-friendly type synthetic leather, this method is used to prepare above-described environmental protection
Type synthetic leather, and include the following steps：
(1) it stocks up：
(1.1) cotton goods for taking 70% or more cotton content, be sent on picker be processed into it is cotton-shaped；Cotton-shaped cotton is sent into and is centrifuged
Machine centrifuges under the rotating speed of 1800r/min, so that cotton-wool and other compositions is detached, the purity of cotton-wool is not less than 95% after centrifugation；It will be from
Cotton-wool after the heart is put into agitator, stirs 30min or more under the rotating speed of 60-180r/min until forming cotton-wool twists into filiform；
(1.2) bamboo and wood takes skin, dries or air-dries 1-2 days, is crushed to powdery, and the diameter of powdered granule is no more than 300 microns；
(1.3) radish is several takes skin coring, is dried to that water content is no more than weight ratio 5%, is crushed to powdery, powdered granule
Diameter be no more than 500 microns, be exposed to the sun 1-2 hours；
(1.4) thermoplastic resin cosmetics, particle diameter are 20-300 microns, and shellac is several spare.
(2) batch mixing：
(2.1) staple is put into jarring machine and carries out vibrations stirring and breaks up；
(2.2) staple after breaing up is rolled into the flake that thickness is no more than 0.3mm, is then pulverized, after pulverizing
Of length no more than 0.8mm of monomer mixture, width are no more than 0.4mm, form cotton material fine crushing；
(2.3) thermoplastic resin powder, bamboo powder and radish skin powder are put in proportion into cotton material fine crushing, stirring is to being sufficiently mixed；
(3) glue mixing：Shellac is put into mixture, is fully mixed thoroughly；
(4) it is coated with：By the mixed material heating after glue mixing to 45-60 DEG C, 0.5-1h is heated, is uniformly smeared in release paper,
Coating layer thickness is no more than 1.2mm；
(5) it dries：38 DEG C of constant temperature dryings in dryer；
(6) it removes：After release paper is removed, synthetic leather product is obtained.
What the present invention selected prepares raw material environmental protection, does not select polyurethane resin, avoids using N, N '-dimethyl formyl
The toxic chemicals solvent such as amine, toluene, it is the safe preparation process of synthetic leather, pollution-free.Synthetic leather that the present invention is prepared is soft,
Resilience is good, has stronger wearability, but also with heat resistance, light resistance, water resistance, being capable of the chemical solutions such as methanol tolerant
Agent, good air permeability.
Specific implementation mode
In order to make those skilled in the art be better understood from the present invention program, below in conjunction with specific embodiment to this hair
Bright technical solution carries out clear, complete description.Obviously, described embodiment is only that the part of the present invention is implemented
Example, instead of all the embodiments.
Embodiment 1：Stock
(1.1) cotton goods for taking 70% or more cotton content, be sent on picker be processed into it is cotton-shaped；Cotton-shaped cotton is sent into and is centrifuged
Machine centrifuges under the rotating speed of 1800r/min, and cotton-wool and other compositions is made to detach, and the purity of cotton-wool is 98% after centrifugation；After centrifuging
Cotton-wool be put into agitator, under the rotating speed of 120r/min stir 30min or more until formed cotton-wool twist into filiform；
(1.2) bamboo and wood takes skin, dries or air-dries 2 days, is crushed to powdery, a diameter of 200 microns of powdered granule；
(1.3) ternip is several takes skin coring, is dried to that water content is no more than weight ratio 5%, is crushed to powdery, powdery
A diameter of 500 microns of grain, are exposed to the sun 2 hours；
(1.4) polyethylene powder, particle diameter are 100 microns, and shellac is several spare.
Embodiment 2：It prepares
1-1 weighs 40 parts of staple made from embodiment 1,20 parts of bamboo powder, 8 parts of polyethylene powder, 15 parts of ternip skin, worm respectively
1 part of glue, spare, above is parts by weight；
40 parts of staple is put into jarring machine by 1-2 to carry out vibrations stirring and breaks up；
Staple after breaing up is rolled into the flake that thickness is no more than 0.3mm by 1-3, is then pulverized, single after pulverizing
Of length no more than 0.8mm of body mixture, width are no more than 0.4mm, form cotton material fine crushing；
15 parts of 8 parts of polyethylene powder, 20 parts of bamboo powder and ternip skin powder are added into cotton material fine crushing by 1-4, and stirring is mixed to abundant
It closes；
1-5 glue mixings：1 part of shellac is added in the mixture obtained to step 1-4, fully mixes thoroughly；
1-6 is coated with：By the mixed material heating after glue mixing to 50 DEG C, 1h is heated, is uniformly smeared in DE series release papers, applied
Layer thickness is no more than 1.2mm；
1-7 is dried：38 DEG C of constant temperature dryings in dryer；
1-8 is removed：After DE series release papers are removed, synthetic leather product is obtained.
Embodiment 3：It prepares
1-1 weighs 50 parts of staple made from embodiment 1,30 parts of bamboo powder, 15 parts of polyethylene powder, 30 parts of ternip skin, worm respectively
5 parts of glue, spare, above is parts by weight；
50 parts of staple is put into jarring machine by 1-2 to carry out vibrations stirring and breaks up；
Staple after breaing up is rolled into the flake that thickness is no more than 0.3mm by 1-3, is then pulverized, single after pulverizing
Of length no more than 0.8mm of body mixture, width are no more than 0.4mm, form cotton material fine crushing；
30 parts of 15 parts of polyethylene powder, 30 parts of bamboo powder and ternip skin powder are added into cotton material fine crushing by 1-4, and stirring is mixed to abundant
It closes；
1-5 glue mixings：5 parts of shellac is added in the mixture obtained to step 1-4, fully mixes thoroughly；
1-6 is coated with：By the mixed material heating after glue mixing to 50 DEG C, 1h is heated, is uniformly smeared in DE series release papers, applied
Layer thickness is no more than 1.2mm；
1-7 is dried：38 DEG C of constant temperature dryings in dryer；
1-8 is removed：After DE series release papers are removed, synthetic leather product is obtained.
Embodiment 4：It prepares
1-1 weighs 42 parts of staple made from embodiment 1,26 parts of bamboo powder, 11 parts of polyethylene powder, 25 parts of ternip skin, worm respectively
5 parts of glue, spare, above is parts by weight；
42 parts of staple is put into jarring machine by 1-2 to carry out vibrations stirring and breaks up；
Staple after breaing up is rolled into the flake that thickness is no more than 0.3mm by 1-3, is then pulverized, single after pulverizing
Of length no more than 0.8mm of body mixture, width are no more than 0.4mm, form cotton material fine crushing；
25 parts of 11 parts of polyethylene powder, 26 parts of bamboo powder and ternip skin powder are added into cotton material fine crushing by 1-4, and stirring is mixed to abundant
It closes；
1-5 glue mixings：5 parts of shellac is added in the mixture obtained to step 1-4, fully mixes thoroughly；
1-6 is coated with：By the mixed material heating after glue mixing to 50 DEG C, 1h is heated, is uniformly smeared in DE series release papers, applied
Layer thickness is no more than 1.2mm；
1-7 is dried：38 DEG C of constant temperature dryings in dryer；
1-8 is removed：After DE series release papers are removed, synthetic leather product is obtained.
Embodiment 5：It prepares
1-1 weighs 45 parts of staple made from embodiment 1,28 parts of bamboo powder, 9 parts of polyethylene powder, 21 parts of ternip skin, worm respectively
3 parts of glue, spare, above is parts by weight；
45 parts of staple is put into jarring machine by 1-2 to carry out vibrations stirring and breaks up；
Staple after breaing up is rolled into the flake that thickness is no more than 0.3mm by 1-3, is then pulverized, single after pulverizing
Of length no more than 0.8mm of body mixture, width are no more than 0.4mm, form cotton material fine crushing；
21 parts of 9 parts of polyethylene powder, 28 parts of bamboo powder and ternip skin powder are added into cotton material fine crushing by 1-4, and stirring is mixed to abundant
It closes；
1-5 glue mixings：3 parts of shellac is added in the mixture obtained to step 1-4, fully mixes thoroughly；
1-6 is coated with：By the mixed material heating after glue mixing to 50 DEG C, 1h is heated, is uniformly smeared in DE series release papers, applied
Layer thickness is no more than 1.2mm；
1-7 is dried：38 DEG C of constant temperature dryings in dryer；
1-8 is removed：After DE series release papers are removed, synthetic leather product is obtained.
Embodiment 6：It is double-deck
A. the preparation of base：
A.1 25 parts of staple made from embodiment 1 are weighed respectively, and 10 parts of bamboo powder, 1 part of shellac is spare, and above is parts by weight
Number；
A.2 25 parts of the staple weighed up is put into jarring machine and carries out vibrations stirring and breaks up；
A.3 the staple after breaing up is rolled into the flake that thickness is no more than 0.3mm, is then pulverized, it is single after pulverizing
Of length no more than 0.8mm of body mixture, width are no more than 0.4mm, form cotton material fine crushing；
A.4 it is put in proportion into 10 parts of bamboo powder into cotton material fine crushing, stirring is to being sufficiently mixed；
A.5 glue mixing：1 part of shellac is added in the mixture a.4 obtained to step, fully mixes thoroughly；
B. the preparation of face layer：
B.1 15 parts of staple is weighed respectively, 10 parts of bamboo powder, 8 parts of polyethylene powder, 1 part of shellac, 15 parts of ternip skin is spare, with
Upper is parts by weight；
B.2 15 parts of the staple weighed up is put into jarring machine and carries out vibrations stirring and breaks up；
B.3 the staple after breaing up is rolled into the flake that thickness is no more than 0.3mm, is then pulverized, it is single after pulverizing
Of length no more than 0.8mm of body mixture, width are no more than 0.4mm, form cotton material fine crushing；
B.4 8 parts of polyethylene powder is added into cotton material fine crushing, 10 parts of bamboo powder, 15 parts of ternip skin, stirring is to being sufficiently mixed；
B.5 glue mixing：1 part of shellac is added in the mixture b.4 obtained to step, fully mixes thoroughly；
C. the base that a.5 step obtains is heated to 50 DEG C, is uniformly smeared in DE series release papers after heating 1h；
D. the face layer that b.5 step obtains is heated to 50 DEG C, is uniformly applied in the base handled through step c after heating 1h
It smears, the total coating thickness of final base's knead dough layer is no more than 1.2mm；
E. it dries：38 DEG C of constant temperature dryings in dryer；
F. it removes：After DE series release papers are removed, synthetic leather product is obtained.
Performance measurement and comparison
Synthetic leather product common on the market is chosen as sample is compared, with synthetic leather made from the embodiment of the present invention 2~6
Product carries out following performance test respectively, and the results are shown in Table 1.
Sample is compared to be provided by textile college of Institutes Of Technology Of Zhejiang；Compare sample main component include：Polyurethane resin,
Wood powder, N, N '-dimethyl formamide, acetone etc..
1, wear-resisting property is tested:Reference standard QB/T2726-2005.
2, heat resistance is tested:It tests according to QB/T2703-2005 regulations.
3, light fastness is tested:It tests according to QB/T2727-2005 regulations.
4, water absorption rate measures:Each product is cut out according to 2cm × 2cm, m is weighed as1G is put into tap water and impregnates
It is taken out after 24 hours, dries the water on surface, be weighed as m2G, calculating water absorption rate using formula is:(m2-m1)/m1× 100%.
5, methanol tolerant performance measurement:Each product is cut out according to 2cm × 2cm, m is weighed as3G is put into pure methanol
It is taken out after impregnating 24 hours, dries the m that weighs after the methanol on surface4G, calculating suction methanol rate using formula is:(m4-m3)/m3×
100%.
6, air penetrability measures：Under the test pressure of 200Pa, the air penetrability of product is shown in Table 1；Environment temperature：It is 25 DEG C, wet
Degree：35%, test area：10cm2。
7, feel is tested：Human hand is contacted with synthetic leather product, by human contact come the pliability of more each product and
Resilience.
Table 1
It can be seen from the data in table 1 compared with comparing sample, synthetic leather that the present invention is prepared is soft, rebound
Property it is good, there is stronger wearability, but also with heat resistance, light resistance, water resistance, can the chemical solvents such as methanol tolerant, thoroughly
Gas is good；What the present invention selected prepares raw material environmental protection, does not select polyurethane resin, avoids using N, N '-dimethyl formyl
The toxic chemicals solvent such as amine, toluene, the preparation process of synthetic leather are more safe and pollution-free.
By the double-deck synthetic leather prepared by embodiment 6, ageing-resistant experiment is carried out, ageing-resistant degree is common synthetic leather
3-5 times, and it is not easy delamination splitting.
Obviously, described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment should all belong to the scope of protection of the invention.
Claims (6)
1. a kind of environment-friendly type synthetic leather, characterized in that in parts by weight, be made of following composition：40-50 parts of staple, bamboo
20-30 parts of powder, 8-15 parts of thermoplastic resin cosmetics, 15-30 parts of radish skin, 1-5 parts of shellac.
2. environment-friendly type synthetic leather according to claim 1, characterized in that in parts by weight, be made of following composition：
42 parts of staple, 26 parts of bamboo powder, 11 parts of thermoplastic resin cosmetics, 25 parts of radish skin, 5 parts of shellac.
3. environment-friendly type synthetic leather according to claim 1, characterized in that in parts by weight, be made of following composition：
45 parts of staple, 28 parts of bamboo powder, 9 parts of thermoplastic resin cosmetics, 21 parts of radish skin, 3 parts of shellac.
4. environment-friendly type synthetic leather according to claim 1, characterized in that radish skin uses ternip skin.
5. environment-friendly type synthetic leather according to claim 1, characterized in that the synthetic leather includes base's knead dough layer, wherein is pressed
Parts by weight meter, base consist of the following compositions：25-30 parts of staple, 10-15 parts of bamboo powder, 1-3 parts of shellac, face layer by below at
It is grouped as：15-20 parts of staple, 10-15 parts of bamboo powder, 8-15 parts of thermoplastic resin cosmetics, 15-30 parts of radish skin, 1-2 parts of shellac.
6. a kind of preparation method of environment-friendly type synthetic leather, characterized in that this method is used to prepare any one of claim 1-5 institutes
The environment-friendly type synthetic leather stated, and include the following steps：
(1) it stocks up：
(1.1) cotton goods for taking 70% or more cotton content, be sent on picker be processed into it is cotton-shaped；Cotton-shaped cotton is sent into centrifuge,
It is centrifuged under the rotating speed of 1800r/min, so that cotton-wool and other compositions is detached, the purity of cotton-wool is not less than 95% after centrifugation；It will centrifugation
Cotton-wool afterwards is put into agitator, stirs 30min or more under the rotating speed of 60-180r/min until forming cotton-wool twists into filiform；
(1.2) bamboo and wood takes skin, dries or air-dries 1-2 days, is crushed to powdery, and the diameter of powdered granule is no more than 300 microns；
(1.3) radish is several takes skin coring, is dried to that water content is no more than weight ratio 5%, is crushed to powdery, powdered granule it is straight
Diameter is no more than 500 microns, is exposed to the sun 1-2 hours；
(1.4) thermoplastic resin cosmetics, particle diameter are 20-300 microns, and shellac is several spare.
(2) batch mixing：
(2.1) staple is put into jarring machine and carries out vibrations stirring and breaks up；
(2.2) staple after breaing up is rolled into the flake that thickness is no more than 0.3mm, is then pulverized, pulverizes rear monomer
Of length no more than 0.8mm of mixture, width are no more than 0.4mm, form cotton material fine crushing；
(2.3) thermoplastic resin powder, bamboo powder and radish skin powder are put in proportion into cotton material fine crushing, stirring is to being sufficiently mixed；
(3) glue mixing：Shellac is put into mixture, is fully mixed thoroughly；
(4) it is coated with：By the mixed material heating after glue mixing to 45-60 DEG C, 0.5-1h is heated, is uniformly smeared in release paper, coating
Thickness is no more than 1.2mm；
(5) it dries：38 DEG C of constant temperature dryings in dryer；
(6) it removes：After release paper is removed, synthetic leather product is obtained.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981712A (en) * | 2021-10-30 | 2022-01-28 | 浙江闽锋化学有限公司 | Novel synthetic leather material and preparation method thereof |
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| CN1078757A (en) * | 1993-04-29 | 1993-11-24 | 常永贤 | Natural fibre leather |
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