CN1814906A - High water repellency artificial leather and its manufacturing method - Google Patents
High water repellency artificial leather and its manufacturing method Download PDFInfo
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- CN1814906A CN1814906A CNA2005100016208A CN200510001620A CN1814906A CN 1814906 A CN1814906 A CN 1814906A CN A2005100016208 A CNA2005100016208 A CN A2005100016208A CN 200510001620 A CN200510001620 A CN 200510001620A CN 1814906 A CN1814906 A CN 1814906A
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Abstract
This invention relates to a manufacturing method for artificial leather including the following steps: providing a piece of basic cloth, forming a PUR resin impregnation layer with a water-driven agent in said cloth and a coated layer on said cloth to freeze, wash and dry said impregnation layer and the coated layer to form a kind of water-driven artificial leather and then process the fluorine water-driven agent to form a high water-driven artificial leather.
Description
Technical field
The invention relates to a kind of artificial leather,,, make artificial leather have high water repellency by the processing of dryingagent more especially relevant for a kind of artificial leather manufacture method.
Background technology
With reference to figure 1, known artificial leather manufacture method mainly comprises first and second stage, and wherein this phase I is to form the artificial leather semi-finished product, this second stage is the lines that these artificial leather semi-finished product is produced similar corium, to form the finished product of artificial leather.This phase I comprises step 104 to 113, one base cloth (step 104) at first is provided, and with impregnation with this base cloth of polyurethane resin constituent impregnation to form an impregnation layer in this base cloth (step 106), to be coated with again with the polyurethane resin constituent and be coated with this base cloth forming a coating layer on this base cloth (step 108), and then this impregnation layer and coating layer will be solidified (step 110), washing (step 111) and oven dry processing such as (steps 112) to form artificial leather semi-finished product (step 113).
This second stage comprises step 114 to 118, coats a following layer of following with the polyurethane resin constituent in this urethane resin layer prior to coating one deck dry type polyurethane resin constituent on the release liners again to form a polyurethane resin surface layer.Following layer on the release liners is fitted on these artificial leather semi-finished product (step 114), and it is release with this release liners to tear release liners (step 116) again off, to produce the lines of similar corium, obtains the artificial leather finished product (step 118) of similar corium texture by this.
Known artificial leather does not have water-repellancy, that is does not have water proofing property, therefore is not suitable for being used in the moist environment, is not suitable for being used in the environment of rainy day such as the made footwear of artificial leather.Chinese patent discloses a kind of manufacture method of high water repellency cloth for No. 380177, yet the composition structure of this cloth is obviously inequality in artificial leather.
Therefore, just having to provide a kind of manufacture method with high water repellency artificial leather, can solve aforesaid shortcoming.
Summary of the invention
One of the object of the invention is to provide a kind of artificial leather manufacture method, by the processing of dryingagent, makes artificial leather have high water repellency.
For reaching above-mentioned purpose, the invention provides a kind of artificial leather manufacture method, it comprises the following step: a base cloth is provided; Formation has a polyurethane resin impregnation layer of dryingagent in this base cloth; Formation has a polyurethane resin coating layer of dryingagent on this base cloth; Solidify, wash and dry this impregnation layer and this coating layer, to form a water repellency artificial leather; And the fluouine water extraction agent is handled in impregnation again, to form a high water repellency artificial leather.
According to high water repellency artificial leather manufacture method of the present invention,, make artificial leather have high water repellency by the processing of dryingagent.Moreover the anti-siphon and the water absorption rate test number of high water repellency artificial leather of the present invention are lower than known artificial leather really, therefore have higher water-repellancy really and have the effect of anti-siphon.
In order to allow above and other objects of the present invention, feature and the advantage can be more obvious, embodiments of the invention cited below particularly, and cooperate appended icon, be described in detail below.
Description of drawings
Fig. 1 is the flow chart of known artificial leather manufacture method;
Fig. 2 is the flow chart according to the high water repellency artificial leather manufacture method of first embodiment of the invention;
Fig. 3 is the half-finished generalized section of a water repellency artificial leather according to first embodiment of the invention;
Fig. 4 is the generalized section according to a high water repellency artificial leather finished product of first embodiment of the invention;
Fig. 5 is the flow chart according to the high water repellency artificial leather manufacture method of second embodiment of the invention;
Fig. 6 is the half-finished generalized section of a water repellency artificial leather according to second embodiment of the invention;
Fig. 7 is the generalized section according to a high water repellency artificial leather finished product of second embodiment of the invention.
[figure number explanation]
106 impregnations of 104 base cloths
108 coatings 110 are solidified
111 washings, 112 oven dry
113 semi-finished product 114 are fitted
116 tear release liners 118 finished products off
206 impregnations of 204 base cloths
208 coatings 210 are solidified
211 washings, 212 oven dry
214 impregnations of 213 semi-finished product
215 applyings 216 tear release liners off
218 finished products, 222 embossings
232 surface grindings of 224 finished products
233 impregnations, 234 finished products
250 artificial leather semi-finished product
252 base cloths, 254 impregnation layers
256 coating layers, 258 surface layers
259 following layers, 260 artificial leather finished products
306 impregnations of 304 base cloths
308 solidify 310 washings
311 oven dry, 312 decrements are to reduce fibre fineness
314 impregnations of 313 semi-finished product
315 fit
316 tear release liners 318 finished products off
322 embossings, 324 finished products
332 surface grindings, 333 impregnations
334 finished products, 350 artificial leather semi-finished product
352 base cloths, 354 impregnation layers
358 surface layers
359 following layers, 360 artificial leather finished products
The specific embodiment
With reference to figure 2, high water repellency artificial leather manufacture method according to first embodiment of the invention, mainly comprise first and second stage, wherein this phase I is to form the artificial leather semi-finished product, this second stage is the lines that these artificial leather semi-finished product is produced similar corium, to form the finished product of artificial leather.This phase I comprises step 204 to 213, one base cloth 252 (step 204) at first is provided, and with this base cloth 252 of polyurethane resin constituent impregnation with dryingagent to form an impregnation layer 254 in this base cloth 252 (step 206), the polyurethane resin constituent that will have dryingagent again is coated with on this base cloth 252 to form a coating layer 256 on this base cloth 252 (step 208), and then this impregnation layer 254 and coating layer 256 solidified (step 210), washing (step 211) and oven dry processing such as (steps 212) are to form water repellency artificial leather semi-finished product 250 (step 213), as shown in Figure 3.This base cloth 252 is to be a non-woven base cloth, and it is by selecting more than one compositions to be formed in nylon (Nylon), polyethylene terephthalate (PET), the poly-acryl fiber group of Polyolefin and.
With reference to figure 2, this second stage comprises first and second method again, and this first method has step 214 to 218.These water repellency artificial leather semi-finished product 250 are carried out the impregnation of fluouine water extraction agent and handle (step 214) to form high water repellency artificial leather semi-finished product.Then, coating one deck polyurethane resin constituent is coated with the following layer 259 with polyurethane resin constituent again to form a polyurethane resin surface layer 258 on this polyurethane resin surface layer 258 on a release liners.Following layer on the release liners 259 is fitted on these high water repellency artificial leather semi-finished product (step 215), tear this release liners (step 216) again off and this release liners is release, to produce the lines of similar corium, obtain the high water repellency artificial leather finished product 260 (step 218) of similar corium texture by this, as shown in Figure 4.Perhaps, select suitable lines, these high water repellency artificial leather semi-finished product are carried out embossing (step 222), so to make a high water repellency artificial leather finished product (step 224) with an embossing board.Second method has step 232 and 234, and the water repellency artificial leather semi-finished product are imposed surface grinding (step 232), to produce the lines of similar corium.Then, the impregnation of these water repellency artificial leather semi-finished product 250 being carried out the fluouine water extraction agent is handled (step 233) to form the high water repellency artificial leather finished product (step 234) of a similar corium texture.
With regard to first experimental example,, earlier fineness 3 red Buddhist nuns' 30% nylon (Nylon) and 70% polyethylene terephthalate (PET) fiber are made a 0.8mm and 200g/M through needle rolling machine according to high water repellency artificial leather manufacture method of the present invention
2The non-woven base cloth.Then, evenly the impregnation of mixed weight percentage 8% is prepared into an impregnation coating with the colorant of polyurethane resin, percentage by weight 2%, the dryingagent and percentage by weight 89.6% dimethyl amide (DMF) solvent of percentage by weight 0.4%, and evenly polyurethane resin, the colorant of percentage by weight 2%, the dryingagent of percentage by weight 0.8% and dimethyl amide (DMF) solvent of percentage by weight 74.2% of mixed weight percentage 23% are prepared into a coating composition.Above-mentioned non-woven base cloth is carried out impregnation by aforementioned prepared impregnation coating and coating composition, and be coated with, solidify then, wash, dry, so to make the water repellency artificial leather semi-finished product with thickness 1.2mm.These water repellency artificial leather semi-finished product are ground by a grinder station, make its surface become fine hair shape (chamois leather sense).Then, carry out the impregnation of 12% fluouine water extraction agent in an impregnation board and handle, it can be dispersed in this water repellency artificial leather, so just make fine hair shape (chamois leather sense) artificial leather of a tool high water repellency.
With regard to second experimental example,, earlier fineness 3 red Buddhist nuns' 30% nylon (Nylon) and 70% polyethylene terephthalate (PET) fiber are made a 0.8mm and 200g/M through needle rolling machine according to high water repellency artificial leather manufacture method of the present invention
2The non-woven base cloth.Then, evenly the impregnation of mixed weight percentage 8% is prepared into an impregnation coating with the colorant of polyurethane resin, percentage by weight 2%, the dryingagent and percentage by weight 89.6% dimethyl amide (DMF) solvent of percentage by weight 0.4%, and evenly polyurethane resin, the heavy percentage amounts of mixed weight percentage 23% are prepared into a coating composition than 2% colorant, the dryingagent of percentage by weight 0.8% and dimethyl amide (DMF) solvent of percentage by weight 74.2%.Just above-mentioned non-woven base cloth carries out impregnation by aforementioned prepared impregnation coating and coating composition, and is coated with, and solidifies then, washes, dries, so to make water repellency artificial leather half product with thickness 1.4mm.These water repellency artificial leather semi-finished product are handled by the impregnation that an impregnation board carries out 12% fluouine water extraction agent, it can be dispersed in these water repellency artificial leather semi-finished product, to make the high water repellency artificial leather semi-finished product.Then, send the release liners of a tool corium lines in a dry transfer coating machine, wherein this release liners is coating one deck polyurethane resin (PU) surface layer earlier, then via after the oven for drying, is coated with one deck polyurethane resin (PU) following layer again.This following layer is to fit with this high water repellency artificial leather of tool, treat after the maturation release liners is release, so to make the artificial leather of a tool high water repellency and tool surface class corium lines.Perhaps, select suitable lines wheel to carry out embossing, so to make the high water repellency artificial leather of tool surface class corium lines in the half-finished polyurethane resin of high water repellency artificial leather (PU) layer with an embossing board.
With reference to figure 5, high water repellency artificial leather manufacture method according to second embodiment of the invention mainly comprises first and second stage, and the phase I is to form the artificial leather semi-finished product, second stage is the lines that these artificial leather semi-finished product is produced similar corium, to form the finished product of artificial leather.This phase I comprises step 304 to 313, one superfine fiber fabric 352 (step 304) at first is provided, and with impregnation with this base cloth of polyurethane resin constituent impregnation to form an impregnation layer 354 in this base cloth 352 (step 306), again this impregnation layer 354 is solidified (step 308), washing (step 310) and oven dry processing such as (steps 311), decrement is to reduce the fibre fineness (step 312) of this base cloth 352 then, so to make superfine fibre artificial leather semi-finished product 350 (steps 313), as shown in Figure 6.This base cloth 352 is to be a non-woven base cloth, and it is by selecting more than one compositions to be formed in nylon (Nylon), polyethylene terephthalate (PET), the poly-acryl fiber group of Polyolefin and.
With reference to figure 5, this second stage comprises first and second method again, and this first method has step 314 to 318.These superfine fibre artificial leather semi-finished product 350 are carried out the impregnation of fluouine water extraction agent and handle (step 314) to form high water repellency artificial leather semi-finished product.Then, coating one deck polyurethane resin constituent is coated a following layer 359 of following with the polyurethane resin constituent in this polyurethane resin surface layer 358 again to form polyurethane resin surface layer 358 on a release liners.Following layer on the release liners 359 is fitted on these high water repellency artificial leather semi-finished product (step 315), it is release with this release liners to tear release liners (step 316) again off, to produce the lines of similar corium, obtain the high water repellency artificial leather finished product 360 (step 318) of similar corium texture by this, as shown in Figure 7.Perhaps, on the high water repellency artificial leather semi-finished product, carry out embossing (step 322), so to make a tool high water repellency artificial leather (step 324) with an embossing board.Second method has step 332 and 334, and the water repellency artificial leather semi-finished product are imposed surface grinding (step 332), with the fine hair sense (chamois leather sense) that produces similar corium.Then, the impregnation of these water repellency artificial leather semi-finished product 350 being carried out the fluouine water extraction agent is handled (step 333) to form the high water repellency artificial leather finished product (step 334) of a similar corium texture.
With regard to the 3rd experimental example,, with nylon (Nylon)/polyethylene terephthalate (PET) superfine fibre of fineness 3 red Buddhist nuns, make a 1.0mm and 380g/M earlier by a needle rolling machine according to high water repellency artificial leather manufacture method of the present invention
2The non-woven base cloth.Evenly the impregnation of mixed weight percentage 7% is prepared into an impregnation coating with the colorant of polyurethane resin, percentage by weight 1% and dimethyl amide (DMF) solvent of percentage by weight 92%.This superfine fibre non-woven base cloth is carried out impregnation by aforementioned prepared impregnation coating, and solidified, wash and dry and make artificial leather semi-finished product.Above-mentioned artificial leather semi-finished product are removed, clean and oven dry so that 5% strong alkali aqueous solution is molten after with the polyethylene terephthalate in the sea-island composite fiber (PET) long-chain key molecule hydrolysis scission of link, make fibre fineness reduce to 0.07 red Buddhist nun, so just make a superfine fibre artificial leather half product (fibre fineness can be considered superfine fibre less than 1 red Buddhist nun).Superfine fibre artificial leather half product of this thickness 1.0mm are ground through grinder station, make its surface become fine hair shape (chamois leather sense).Carry out the impregnation processing of 12% fluouine water extraction agent again in the impregnation board, it can be dispersed in the artificial leather, so fine hair shape (chamois leather sense) superfine fibre artificial leather to make a tool high water repellency.
Anti-siphon and water absorption rate test result according to prepared high water repellency artificial leather of first, second and third experimental example of the present invention and known artificial leather compare, and be as shown in the table:
| Experimental example 1 | Experimental example 2 | Experimental example 3 | Known artificial leather | |
| Anti-siphon | 0.2cm | 0.1cm | 0.3cm | Greater than 1cm |
| Water absorption rate | 32％ | 21％ | 40％ | Greater than 100% |
Wherein, the test of anti-siphon is that test piece one end of 2.54cm * 15cm is hung the 2cm in the beaker that is filled with water that submerges with anchor clamps, and in water surface place marking, leaves standstill 1 hour.The judgement of anti-siphon test result: the actual measurement sucted the waterline height.According to high water repellency artificial leather of the present invention, it is to be lower than 0.8cm that the quilt of its test piece sucts the waterline height.The test of water absorption rate is that the water that weight is put into depth of water 2cm is again measured in the test piece of 10cm * 10cm earlier, test piece by water logging fully do not place article afterwards in test piece, and test piece can not emerged, and leaves standstill 1 hour.Test piece is taken out in water, its back side is positioned on the dried towel lightly,, blot lightly, measure the test piece weight of this moment with the water of blotting paper with leather surface.The algorithm of water absorption rate is (the original weight of test piece weight-test piece after 1 hour) the original weight of ÷ test piece * 100%.According to high water repellency artificial leather of the present invention, its water absorption rate is to be lower than 50%.
According to water repellency artificial leather manufacture method of the present invention,, make artificial leather have high water repellency by the processing of dryingagent.Moreover, the anti-siphon and the water absorption rate test number of the prepared high water repellency artificial leather of first, second and third experimental example of the present invention are lower than known artificial leather really, have higher water-repellancy really and have the effect of anti-siphon according to the prepared high water repellency artificial leather of first, second and third experimental example of the present invention.
Though the present invention discloses with previous embodiment, so it is not in order to qualification the present invention, and any should have common knowledge in the affiliated technical field, without departing from the spirit and scope of the present invention, and when doing various changes and modification.Therefore protection scope of the present invention defines and is as the criterion when looking accompanying claim.
Claims (14)
1, a kind of high water repellency artificial leather manufacture method is characterized in that: comprise the following step:
A., one base cloth is provided;
B. form and have a polyurethane resin impregnation layer of dryingagent in this base cloth;
C. form and have a polyurethane resin coating layer of dryingagent on this base cloth; And
D. solidify, wash and dry this impregnation layer and this coating layer, to form a water repellency artificial leather.
2, high water repellency artificial leather manufacture method as claimed in claim 1 wherein comprises the following step in addition:
E. this water repellency artificial leather is carried out the impregnation of fluouine water extraction agent and handle, to form a high water repellency artificial leather.
3, high water repellency artificial leather manufacture method as claimed in claim 2 wherein behind step e, more can comprise the following step:
1) provides a release liners;
2) form a polyurethane resin surface layer on this release liners;
3) formation has a following layer of polyurethane resin constituent on this surface layer;
4) this following layer is fitted on this high water repellency artificial leather; And
5) tear this release liners off and this release liners is release.
4, high water repellency artificial leather manufacture method as claimed in claim 2 wherein behind step e, more can comprise the following step:
1 '. this high water repellency artificial leather is carried out embossing.
5, high water repellency artificial leather manufacture method as claimed in claim 1 wherein comprises the following step in addition:
E1. the surface of this water repellency artificial leather is ground; And
F1. will grind the impregnation that the water repellency artificial leather of finishing carries out the fluouine water extraction agent and handle, to form a high water repellency artificial leather.
6, high water repellency artificial leather manufacture method as claimed in claim 1, wherein the fibre fineness of this water repellency artificial leather is greater than 1 red Buddhist nun.
7, high water repellency artificial leather manufacture method as claimed in claim 1 wherein can be the following step after step b:
C '. solidify, wash and dry this impregnation layer;
D '. decrement to be reducing the fibre fineness of this base cloth, and forms an e '. superfine fibre artificial leather semi-finished product; And
F '. the impregnation of these superfine fibre artificial leather semi-finished product being carried out the fluouine water extraction agent is handled to form a high water repellency artificial leather.
8, high water repellency artificial leather manufacture method as claimed in claim 7 wherein behind step f ', more can comprise following A or B step:
The A step:
E. this water repellency artificial leather is carried out the impregnation of fluouine water extraction agent and handle, to form a high water repellency artificial leather;
1) provides a release liners;
2) form a polyurethane resin surface layer on this release liners;
3) formation has a following layer of polyurethane resin constituent on this surface layer;
4) this following layer is fitted on this high water repellency artificial leather; And
5) tear this release liners off and this release liners is release;
Or B step:
E. this water repellency artificial leather is carried out the impregnation of fluouine water extraction agent and handle, to form a high water repellency artificial leather;
1 ') this high water repellency artificial leather is carried out embossing.
9, high water repellency artificial leather manufacture method as claimed in claim 7, wherein the fibre fineness of this water repellency artificial leather is less than 1 red Buddhist nun.
10, high water repellency artificial leather manufacture method as claimed in claim 1 wherein can be the following step after step b:
C ". solidify, wash and dry this impregnation layer;
D ". decrement to be reducing the fibre fineness of this base cloth, and forms an e ". the superfine fibre artificial leather; And
F ". the surface of this superfine fibre artificial leather is ground;
G ". will grind the superfine fibre artificial leather of finishing and carry out the impregnation processing of fluouine water extraction agent to form a high water repellency artificial leather.
11, high water repellency artificial leather manufacture method as claimed in claim 10, wherein the fibre fineness of this artificial leather is less than 1 red Buddhist nun.
12, high water repellency artificial leather manufacture method as claimed in claim 1, wherein this base cloth is a non-woven base cloth.
13, high water repellency artificial leather manufacture method as claimed in claim 12, wherein this non-woven base cloth is by selecting more than one compositions to be formed in nylon Nylon, polyethylene terephtalate, the poly-acryl fiber group of Polyolefin and.
14, a kind of high water repellency artificial leather is characterized in that, it comprises:
One base cloth;
One polyurethane resin impregnation layer is disposed in this base cloth, and has dryingagent; And
One polyurethane resin coating layer is disposed on this base cloth, and has dryingagent, and wherein this base cloth, polyurethane resin impregnation layer and polyurethane resin coating layer are that the impregnation of carrying out the fluouine water extraction agent is handled, to form a high water repellency artificial leather.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100016208A CN100523365C (en) | 2005-02-03 | 2005-02-03 | High water repellency artificial leather and its manufacturing method |
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| CNB2005100016208A CN100523365C (en) | 2005-02-03 | 2005-02-03 | High water repellency artificial leather and its manufacturing method |
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| CN1814906A true CN1814906A (en) | 2006-08-09 |
| CN100523365C CN100523365C (en) | 2009-08-05 |
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| CNB2005100016208A Expired - Fee Related CN100523365C (en) | 2005-02-03 | 2005-02-03 | High water repellency artificial leather and its manufacturing method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102747611A (en) * | 2012-06-21 | 2012-10-24 | 福建宝利特纺织涂层有限公司 | Preparation method of environment-friendly case coating fabric |
| CN103835144A (en) * | 2014-03-04 | 2014-06-04 | 合肥市科天化工有限公司 | Environmental-friendly and water-pressure-resistant tent leather and preparation method thereof |
| CN104499301A (en) * | 2014-11-17 | 2015-04-08 | 杭州苏威进出囗有限公司 | Preparation technology for synthesizing leather by durable environmental protection wet-type PU |
| CN104775306A (en) * | 2015-04-20 | 2015-07-15 | 兰州科天环保节能科技有限公司 | Manufacturing method of environment-friendly air-permeable hydrolysis-resistant shoe lining leather |
| CN105507017A (en) * | 2016-02-01 | 2016-04-20 | 安安(中国)有限公司 | Production method of dynamic waterproof deeply-embossed synthetic leather |
| CN109610176A (en) * | 2018-12-07 | 2019-04-12 | 福建华普树脂有限公司 | A kind of woven fabric bass and preparation method thereof |
| CN111041844A (en) * | 2019-12-24 | 2020-04-21 | 兰州科天水性高分子材料有限公司 | Anti-siphon shoe leather base and preparation method thereof |
| CN113403856A (en) * | 2021-05-27 | 2021-09-17 | 安安(中国)有限公司 | Processing method of superfine fiber synthetic leather with ultrahigh waterproof and air permeability |
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2005
- 2005-02-03 CN CNB2005100016208A patent/CN100523365C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102747611A (en) * | 2012-06-21 | 2012-10-24 | 福建宝利特纺织涂层有限公司 | Preparation method of environment-friendly case coating fabric |
| CN102747611B (en) * | 2012-06-21 | 2016-01-20 | 福建宝利特纺织涂层有限公司 | A kind of preparation method of environmental protection case and bag coating fabric |
| CN103835144A (en) * | 2014-03-04 | 2014-06-04 | 合肥市科天化工有限公司 | Environmental-friendly and water-pressure-resistant tent leather and preparation method thereof |
| CN103835144B (en) * | 2014-03-04 | 2016-03-30 | 合肥市科天化工有限公司 | A kind of environmental protection water pressure resistance tent leather and preparation method thereof |
| CN104499301A (en) * | 2014-11-17 | 2015-04-08 | 杭州苏威进出囗有限公司 | Preparation technology for synthesizing leather by durable environmental protection wet-type PU |
| CN104499301B (en) * | 2014-11-17 | 2016-05-11 | 杭州苏威进出囗有限公司 | A kind of preparation technology of durability environ mental protective wet type Pu synthetic leather |
| CN104775306A (en) * | 2015-04-20 | 2015-07-15 | 兰州科天环保节能科技有限公司 | Manufacturing method of environment-friendly air-permeable hydrolysis-resistant shoe lining leather |
| CN104775306B (en) * | 2015-04-20 | 2017-08-11 | 兰州科天新材料股份有限公司 | A kind of preparation method of environmental protection breathable hydrolysis shoe lining leather |
| CN105507017A (en) * | 2016-02-01 | 2016-04-20 | 安安(中国)有限公司 | Production method of dynamic waterproof deeply-embossed synthetic leather |
| CN109610176A (en) * | 2018-12-07 | 2019-04-12 | 福建华普树脂有限公司 | A kind of woven fabric bass and preparation method thereof |
| CN111041844A (en) * | 2019-12-24 | 2020-04-21 | 兰州科天水性高分子材料有限公司 | Anti-siphon shoe leather base and preparation method thereof |
| CN113403856A (en) * | 2021-05-27 | 2021-09-17 | 安安(中国)有限公司 | Processing method of superfine fiber synthetic leather with ultrahigh waterproof and air permeability |
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| Publication number | Publication date |
|---|---|
| CN100523365C (en) | 2009-08-05 |
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