CN109551850A - A kind of preparation method of wear-resisting type artificial leather - Google Patents
A kind of preparation method of wear-resisting type artificial leather Download PDFInfo
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- CN109551850A CN109551850A CN201811406433.1A CN201811406433A CN109551850A CN 109551850 A CN109551850 A CN 109551850A CN 201811406433 A CN201811406433 A CN 201811406433A CN 109551850 A CN109551850 A CN 109551850A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/156—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is calendered and immediately laminated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/08—Cars
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The present invention relates to a kind of preparation methods of wear-resisting type artificial leather, comprising the following steps: (1), weighs raw material；(2), the mixing for handling step (1) well, stirs evenly, adds mixture in mixer, carries out mixing, and open mill is then added and carries out mill；(3), the mixture by plastics processing that step (2) is handled well is rolled into film in calender, delays and is bonded with base fabric, then embossing, cooling obtains artificial leather.The preparation method of high-wear-resistant artificial leather provided by the invention, pass through the processing to filler, greatly improve the intensity and wearability of artificial polyvinyl chloride leather, pass through the processing to colorant, improve the stability of color, also the mechanical property that artificial leather can be promoted, expands the range used, promotes the effect used.
Description
Technical field
The present invention relates to belong to artificial leather field, and in particular to a kind of preparation method of wear-resisting type artificial leather.
Background technique
Artificial leather is a kind of appearance, feel like leather and the plastic products that it can be replaced to use.Usually using fabric as base,
Coating synthetic resin and the addition of various plastics are made.Mainly there are PVC artificial leather, PU artificial leather and PU synthetic leather three classes.
Last century the eighties, expensive fur clothing cladding common people can not consume, in response to the market demand, counterfeit leather it is artificial
Leather once came into vogue, and was widely used in clothing, system packet.Artificial leather clothes, the packet of leather counterfeit so are once full of street
Head meets the hope that people wear Pi Daipi.Compared with leather, artificial leather is easy to senile abrasion, because containing a large amount of chemical raw materials
And harm is generated to health of human body, and market is gradually lost because not being durable with its clothing packet made, until by other raw materials
Replace.
Present artificial polyvinyl chloride leather is a kind of artificial leather leatherware of relatively low cost, can be used for automobile interior decoration, furniture
The fields such as interior trim, when being used to produce automotive seat, it is necessary to have good intensity and wearabilities, and artificial polyvinyl chloride leather is often
Needs are unable to satisfy, so existing automotive seat is often removed from office using PU with artificial leather, cause being obviously improved for cost.
Summary of the invention
The present invention relates to a kind of preparation methods of wear-resisting type artificial leather to be greatly improved poly- by being adjusted to raw material
The abrasion resistant effect of vinyl chloride artificial leather.
The invention is realized by the following technical scheme:
A kind of preparation method of wear-resisting type artificial leather, comprising the following steps:
(1), following raw material: 100-120 parts of Corvic, 5-8 parts of microcrystalline cellulose, polyurethane 13- is taken by weight
15 parts, 2-4 parts of plasticizer, 1.2-1.5 parts of nano zine oxide, 15-20 parts of wollastonite in powder, 0.5-1 parts of colorant, dimethylformamide
15-20 parts, 1-2 parts of defoaming agent；
(2), the raw material for handling step (1) well mixes, and stirs evenly, adds mixture in mixer, carries out mixing, so
Open mill is added afterwards and carries out mill；
(3), the mixture by plastics processing that step (2) is handled well is rolled into film in calender, delays and is pasted with base fabric
It closes, then embossing, cooling obtains artificial leather.
The wollastonite in powder passes through modification, the specific steps are as follows:
(1), wollastonite in powder is handled into 1-2h at 450-480 DEG C, then taken out, using the nitric acid solution of mass fraction 5% 65
Constant temperature handles 5-6h at DEG C, makes to be washed with deionized, drying to constant weight at 110-115 DEG C；
(2), the wollastonite in powder for handling step (1) well use modification liquid immersion treatment 30-50min, modification liquid by weight by
Following raw material is made: 10 parts of silane coupling agent, 22 parts of the ethanol solution of volume fraction 95%, 3 parts of odium stearate；
(3), 1-1.5 parts of 2-3 parts of 30-35 parts of wollastonite in powder, calcium carbonate crystal whisker, expanded graphite mixing for handling step (2) well,
Dispersed using high speed disperser, obtains modified wollastonite powder.
The plasticizer is o-phthalic acid dibutyl ester.
The defoaming agent is polysorbate40 and polyvinylether according to weight ratio 5-6:1.
The colorant is that attapulgite and pigment are mixed by weight 3-5:1.
The attapulgite is by processing:
(1), first attapulgite is immersed in the hydrochloric acid solution that mass fraction is 10%, is taken out after impregnating 60min, uses deionization
Water rinses, until can not detect chloride ion, drying for standby in the water after cleaning；
(2), by step (1), treated, and attapulgite is ground, and is taken out after the completion spare after 600 meshes；
(3), step (2) resulting attapulgite is put into calcining furnace and carries out calcination processing, the temperature for controlling calcining is 420
DEG C, it is taken out after 35-45min spare；
(4), Silane coupling agent KH550, carbon nanotube, dehydrated alcohol, magnesium stearate is corresponding according to weight ratio 8:1:5:1 progress
After mixing, the attapulgite that mixture is obtained with step (3) is stirred under the revolving speed of 1800r/min using high-speed mixer
10min is handled, the attapulgite that obtains that treated.
The smelting temperature is 165-180 DEG C, mixing time 3-5min.
The mixing temperature is 155-170 DEG C.
By the way that the costs such as microcrystalline cellulose, wollastonite in powder are added in the feed in the present invention, it is obviously improved PVC artificial leather
Intensity and wearability, wollastonite in powder is modified processing, by modification, has been obviously improved wollastonite in powder and PVC tree
Calcium carbonate crystal whisker and expanded graphite is added, it is ensured that the phase of each ingredient in the compatibility of rouge, the dispersion effect being lifted in resin
Capacitive can make PVC and polyurethane resin and other compositions generate winding crosslinking, calcium carbonate crystal whisker, expanded graphite by processing
Etc. the node that can be used as crosslinking, the intensity after being crosslinked is promoted, while the wearability of PVC leather can be greatly promoted.In the application
Colorant improves the stability of colorant, avoids going out in use in use, be used in mixed way attapulgite modified with pigment
Situations such as now fading, attapulgite also improve its mobility in resin by modification, in processing, attapulgite
It can be used as molecular resin chain node, promote intensity and wearability.
This hair advantageous effect of the invention: the preparation method of high-wear-resistant artificial leather provided by the invention, by filler
Processing, greatly improves the intensity and wearability of artificial polyvinyl chloride leather, by the processing to colorant, improves the stabilization of color
Property, the mechanical property of artificial leather can be also promoted, the range used is expanded, promotes the effect used, the application obtains artificial
Leather can be used for preparing Automobile Seat Materials, relative to using PU to remove from office, significantly reduce cost.
Specific embodiment
Embodiment 1
A kind of preparation method of wear-resisting type artificial leather, comprising the following steps:
(1), following raw material: 110 parts of Corvic, 6 parts of microcrystalline cellulose, 13 parts of polyurethane, plasticising is taken by weight
3.2 parts of agent, 1.5 parts of nano zine oxide, 18 parts of wollastonite in powder, 0.6 part of colorant, 18 parts of dimethylformamide, 1.5 parts of defoaming agent；
(2), the raw material for handling step (1) well mixes, and stirs evenly, adds mixture in mixer, carries out mixing, so
Open mill is added afterwards and carries out mill；
(3), the mixture by plastics processing that step (2) is handled well is rolled into film in calender, delays and is pasted with base fabric
It closes, then embossing, cooling obtains artificial leather.
The wollastonite in powder passes through modification, the specific steps are as follows:
(1), wollastonite in powder is handled into 1.5h at 465 DEG C, then taken out, using the nitric acid solution of mass fraction 5% at 65 DEG C
Constant temperature handles 5h, makes to be washed with deionized, drying to constant weight at 112 DEG C；
(2), the wollastonite in powder for handling step (1) well uses modification liquid immersion treatment 40min, and modification liquid is by weight by following
Raw material is made: 10 parts of silane coupling agent, 22 parts of the ethanol solution of volume fraction 95%, 3 parts of odium stearate；
(3), 1.2 parts of 2.5 parts of 32 parts of wollastonite in powder, calcium carbonate crystal whisker, expanded graphite mixing for handling step (2) well, use
High speed disperser is dispersed, and modified wollastonite powder is obtained.
The plasticizer is o-phthalic acid dibutyl ester.
The defoaming agent is polysorbate40 and polyvinylether according to weight ratio 5.5:1.
The colorant is that attapulgite and pigment are mixed by weight 4:1.
The attapulgite is by processing:
(1), first attapulgite is immersed in the hydrochloric acid solution that mass fraction is 10%, is taken out after impregnating 60min, uses deionization
Water rinses, until can not detect chloride ion, drying for standby in the water after cleaning；
(2), by step (1), treated, and attapulgite is ground, and is taken out after the completion spare after 600 meshes；
(3), step (2) resulting attapulgite is put into calcining furnace and carries out calcination processing, the temperature for controlling calcining is 420
DEG C, it is taken out after 35-45min spare；
(4), Silane coupling agent KH550, carbon nanotube, dehydrated alcohol, magnesium stearate is corresponding according to weight ratio 8:1:5:1 progress
After mixing, the attapulgite that mixture is obtained with step (3) is stirred under the revolving speed of 1800r/min using high-speed mixer
10min is handled, the attapulgite that obtains that treated.
The smelting temperature is 170-180 DEG C, mixing time 3-5min.
The mixing temperature is 160-170 DEG C.
Embodiment 2
A kind of preparation method of wear-resisting type artificial leather, comprising the following steps:
(1), following raw material: 120 parts of Corvic, 7 parts of microcrystalline cellulose, 14 parts of polyurethane, plasticising is taken by weight
3.5 parts of agent, 1.4 parts of nano zine oxide, 18 parts of wollastonite in powder, 1 part of colorant, 18 parts of dimethylformamide, 1.6 parts of defoaming agent；
(2), the raw material for handling step (1) well mixes, and stirs evenly, adds mixture in mixer, carries out mixing, so
Open mill is added afterwards and carries out mill；
(3), the mixture by plastics processing that step (2) is handled well is rolled into film in calender, delays and is pasted with base fabric
It closes, then embossing, cooling obtains artificial leather.
The wollastonite in powder passes through modification, the specific steps are as follows:
(1), wollastonite in powder is handled into 1.2h at 470 DEG C, then taken out, using the nitric acid solution of mass fraction 5% at 65 DEG C
Constant temperature handles 6h, makes to be washed with deionized, drying to constant weight at 112 DEG C；
(2), the wollastonite in powder for handling step (1) well uses modification liquid immersion treatment 45min, and modification liquid is by weight by following
Raw material is made: 10 parts of silane coupling agent, 22 parts of the ethanol solution of volume fraction 95%, 3 parts of odium stearate；
(3), 1.3 parts of 2.7 parts of 33 parts of wollastonite in powder, calcium carbonate crystal whisker, expanded graphite mixing for handling step (2) well, use
High speed disperser is dispersed, and modified wollastonite powder is obtained.
The plasticizer is o-phthalic acid dibutyl ester.
The defoaming agent is polysorbate40 and polyvinylether according to weight ratio 6:1.
The colorant is that attapulgite and pigment are mixed by weight 3:1.
The attapulgite is by processing:
(1), first attapulgite is immersed in the hydrochloric acid solution that mass fraction is 10%, is taken out after impregnating 60min, uses deionization
Water rinses, until can not detect chloride ion, drying for standby in the water after cleaning；
(2), by step (1), treated, and attapulgite is ground, and is taken out after the completion spare after 600 meshes；
(3), step (2) resulting attapulgite is put into calcining furnace and carries out calcination processing, the temperature for controlling calcining is 420
DEG C, it is taken out after 35-45min spare；
(4), Silane coupling agent KH550, carbon nanotube, dehydrated alcohol, magnesium stearate is corresponding according to weight ratio 8:1:5:1 progress
After mixing, the attapulgite that mixture is obtained with step (3) is stirred under the revolving speed of 1800r/min using high-speed mixer
10min is handled, the attapulgite that obtains that treated.
The smelting temperature is 165-180 DEG C, mixing time 3-5min.
The mixing temperature is 155-170 DEG C, mill time 6-7min.
Embodiment 3
Compared with Example 1, wollastonite in powder is without modification.
Embodiment 4
Compared with Example 1, attapulgite is not used in colorant.
Embodiment 5
Compared with Example 1, it when wollastonite in powder is modified, is handled without using modification liquid.
Embodiment 6
Compared with Example 1, when wollastonite in powder is modified, it is added without calcium carbonate crystal whisker.
Embodiment 7
Compared with Example 1, when wollastonite in powder is modified, it is added without expanded graphite.
Embodiment 8
Compared with Example 1, when wollastonite in powder is modified, calcium carbonate crystal whisker and expanded graphite are added without.
Comparative example 1
Compared with Example 1, microcrystalline cellulose is added without in raw material.
Comparative example 2
Compared with Example 1, polyurethane is added without in raw material.
Comparative example 3
Compared with Example 1, nano zine oxide is added without in raw material.
In order to verify the performance of the artificial leather in the application, following experiment is carried out, the performance of the applicant's fabricate-leather is verified, is surveyed
The intensity and wearability for having tried the artificial leather of each embodiment method preparation, as a result such as table 1:
Table 1
Folding fastness is tested using GB/T3920-2008 method；
Tensile strength is tested using the method for GB/T8948-2008；
Wearability test mode is the sample that each embodiment product is made to 20mm*20mm*3mm, is ground in HT-1000 high temperature friction
On damage testing machine in the case where mounted mass is 1kg, turn 1000 turns, records mass loss, then calculate mass loss rate, carry out table
Levy the wearability of sample.
As shown in Table 1, the artificial leather that in the application prepared by method has better intensity, wearability and folding fastness,
After feed change and preparation method, the performance of artificial leather is remarkably decreased.
The application tests the tinctorial property of artificial leather prepared by each embodiment, tests the coloring stabilized of artificial leather
Property, as a result such as table 2；
Comparative example 4
Compared with Example 1, attapulgite is without modification.
Comparative example 5
Compared with Example 1, attapulgite is without calcination processing.
Comparative example 6
Compared with Example 1, without using the mixture processing in step (4) during attapulgite modified.
Table 2:
Note: color difference is tested using color difference meter, and color difference is that natural aging is handled at 25-30 DEG C of temperature by artificial leather after aging process
It is tested after 100 days.
As shown in Table 2, after the colorant of the application method processing is mixed with other compositions in artificial leather, there is good color
Stability can be obviously improved the color stability of artificial leather, promote the quality of artificial leather relative to pigment is directly used.
Claims (8)
1. a kind of preparation method of wear-resisting type artificial leather, which comprises the following steps:
(1), following raw material: 100-120 parts of Corvic, 5-8 parts of microcrystalline cellulose, polyurethane 13- is taken by weight
15 parts, 2-4 parts of plasticizer, 1.2-1.5 parts of nano zine oxide, 15-20 parts of wollastonite in powder, 0.5-1 parts of colorant, dimethylformamide
15-20 parts, 1-2 parts of defoaming agent；
(2), the raw material for handling step (1) well mixes, and stirs evenly, adds mixture in mixer, carries out mixing, so
Open mill is added afterwards and carries out mill；
(3), the mixture by plastics processing that step (2) is handled well is rolled into film in calender, delays and is pasted with base fabric
It closes, then embossing, cooling obtains artificial leather.
2. a kind of preparation method of wear-resisting type artificial leather according to claim 1, which is characterized in that the wollastonite in powder warp
Cross modification, the specific steps are as follows:
(1), wollastonite in powder is handled into 1-2h at 450-480 DEG C, then taken out, using the nitric acid solution of mass fraction 5% 65
Constant temperature handles 5-6h at DEG C, makes to be washed with deionized, drying to constant weight at 110-115 DEG C；
(2), the wollastonite in powder for handling step (1) well use modification liquid immersion treatment 30-50min, modification liquid by weight by
Following raw material is made: 10 parts of silane coupling agent, 22 parts of the ethanol solution of volume fraction 95%, 3 parts of odium stearate；
(3), 1-1.5 parts of 2-3 parts of 30-35 parts of wollastonite in powder, calcium carbonate crystal whisker, expanded graphite mixing for handling step (2) well,
Dispersed using high speed disperser, obtains modified wollastonite powder.
3. a kind of preparation method of wear-resisting type artificial leather according to claim 1, it is characterised in that: the plasticizer is neighbour
Phthalic acid dibutyl ester.
4. a kind of preparation method of wear-resisting type artificial leather according to claim 1, it is characterised in that: the defoaming agent is to spit
Temperature 40 and polyvinylether are according to weight ratio 5-6:1.
5. a kind of preparation method of wear-resisting type artificial leather according to claim 1, it is characterised in that: the colorant is bumps
Stick soil and pigment are mixed by weight 3-5:1.
6. a kind of preparation method of wear-resisting type artificial leather according to claim 5, it is characterised in that: the attapulgite warp
Cross processing:
(1), first attapulgite is immersed in the hydrochloric acid solution that mass fraction is 10%, is taken out after impregnating 60min, uses deionization
Water rinses, until can not detect chloride ion, drying for standby in the water after cleaning；
(2), by step (1), treated, and attapulgite is ground, and is taken out after the completion spare after 600 meshes；
(3), step (2) resulting attapulgite is put into calcining furnace and carries out calcination processing, the temperature for controlling calcining is 420
DEG C, it is taken out after 35-45min spare；
(4), Silane coupling agent KH550, carbon nanotube, dehydrated alcohol, magnesium stearate is corresponding according to weight ratio 8:1:5:1 progress
After mixing, the attapulgite that mixture is obtained with step (3) is stirred under the revolving speed of 1800r/min using high-speed mixer
10min is handled, the attapulgite that obtains that treated.
7. a kind of preparation method of wear-resisting type artificial leather according to claim 1, it is characterised in that: the smelting temperature is
165-180 DEG C, mixing time 3-5min.
8. a kind of preparation method of wear-resisting type artificial leather according to claim 1, it is characterised in that: the mixing temperature is
155-170℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406433.1A CN109551850A (en) | 2018-11-23 | 2018-11-23 | A kind of preparation method of wear-resisting type artificial leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811406433.1A CN109551850A (en) | 2018-11-23 | 2018-11-23 | A kind of preparation method of wear-resisting type artificial leather |
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| Publication Number | Publication Date |
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| CN109551850A true CN109551850A (en) | 2019-04-02 |
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ID=65867282
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|---|---|---|---|
| CN201811406433.1A Withdrawn CN109551850A (en) | 2018-11-23 | 2018-11-23 | A kind of preparation method of wear-resisting type artificial leather |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152649A (en) * | 1995-12-20 | 1997-06-25 | 济南耀福塑胶有限公司 | Nature-like leather and productive method |
| CN106117919A (en) * | 2016-08-31 | 2016-11-16 | 浙江省现代纺织工业研究院 | A kind of manufacture method of ageing-resistant igelite |
-
2018
- 2018-11-23 CN CN201811406433.1A patent/CN109551850A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152649A (en) * | 1995-12-20 | 1997-06-25 | 济南耀福塑胶有限公司 | Nature-like leather and productive method |
| CN106117919A (en) * | 2016-08-31 | 2016-11-16 | 浙江省现代纺织工业研究院 | A kind of manufacture method of ageing-resistant igelite |
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Application publication date: 20190402 |