CN203938912U - Can the solvent-free synthetic leather of embossing - Google Patents
Can the solvent-free synthetic leather of embossing Download PDFInfo
- Publication number
- CN203938912U CN203938912U CN201420247493.4U CN201420247493U CN203938912U CN 203938912 U CN203938912 U CN 203938912U CN 201420247493 U CN201420247493 U CN 201420247493U CN 203938912 U CN203938912 U CN 203938912U
- Authority
- CN
- China
- Prior art keywords
- synthetic leather
- polyurethane
- embossing
- layer
- solvent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002649 leather substitute Substances 0.000 title claims abstract description 41
- 238000004049 embossing Methods 0.000 title claims abstract description 33
- 239000004814 polyurethane Substances 0.000 claims abstract description 31
- 229920002635 polyurethane Polymers 0.000 claims abstract description 30
- 239000010410 layer Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000002344 surface layer Substances 0.000 claims abstract description 15
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims abstract description 12
- 238000005187 foaming Methods 0.000 claims abstract description 12
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 12
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011229 interlayer Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 229920001169 thermoplastic Polymers 0.000 abstract description 8
- 229920001187 thermosetting polymer Polymers 0.000 abstract description 8
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 8
- 230000000704 physical effect Effects 0.000 abstract description 5
- 238000004513 sizing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- 239000002002 slurry Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 6
- 238000012805 post-processing Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 239000011265 semifinished product Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 210000000981 epithelium Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
One can the solvent-free synthetic leather of embossing, comprise base material (4), on base material, there is layer of polyurethane, layer of polyurethane comprises polyurethane surface layer (1), thermoplastic polyurethane foamed interlayer (2) and heat-curable urethane bottom (3), and polyurethane surface layer, thermoplastic polyurethane foamed interlayer, heat-curable urethane bottom are connected successively with base material.Owing to there being two-layer foaming structure, upper strata is thinner thermoplastic expanded intermediate layer, can soften at a certain temperature-modification-cooling-sizing again, thereby make this synthetic leather have can embossing characteristic; Lower floor is thicker thermosetting foamed bottom layer, for this synthetic leather provides main physical property and feel.Can produce with common synthetic leather production line.
Description
Technical field
The utility model belongs to close removes from office manufacture field, relates to a kind of structure of PU synthetic leather, and one can the solvent-free synthetic leather of embossing.
Background technology
Traditional a large amount of organic solvents of synthetic leather production and application, meeting heavy damage ecological environment, adopts solvent-free synthetic leather to be conducive to environmental protection.Chinese invention patent (application number is 201110254065.5) discloses a kind of method that solvent-free dual-component polyurethane knife coating is produced Synthetic Leather, and the synthetic leather that the method is produced is the crosslinked solvent-free synthetic leather of thermosetting of build with release liners lines.Adopt solvent-free environmental synthetic leather that aqueous polyurethane mechanical foaming technology produces can embossing (as the application number Chinese invention patent that is 201210084490.9), but because solvent is the water that latent heat is very high, dry run difficulty, power consumption is serious, production efficiency is low and hydrolysis ageing-resistant performance is poor, need to again invest a brand-new water-based production line with overlength baking oven length and could produce.
Summary of the invention
The purpose of this utility model be one is proposed can the solvent-free synthetic leather of embossing, can embossing and post processing, physical property is high, hydrolysis, kishke feel are strong, soft, and production process can not used any organic solvent.
Thisly can comprise base material and layer of polyurethane by the solvent-free synthetic leather of embossing, layer of polyurethane comprises polyurethane surface layer, thermoplastic polyurethane foamed interlayer and heat-curable urethane bottom, and polyurethane surface layer, thermoplastic polyurethane foamed interlayer, heat-curable urethane bottom are connected successively with base material.
This can the solvent-free synthetic leather of embossing owing to there being two-layer foaming structure, upper strata is thermoplastic expanded intermediate layer, can do thinlyyer, can soften at a certain temperature-modification of this layer-cooling-sizing again, thereby make this synthetic leather have can embossing characteristic; Lower floor is thicker thermosetting foamed bottom layer, for this synthetic leather provides main physical property and feel.Thinner thermoplastic expanded layer, because coating is thin, so starching amount is little, has improved drying efficiency greatly, has reduced drying cost, thereby has not needed special transformation, can produce with common synthetic leather production line.Thermosetting foamed bottom layer and thermoplastic expanded intermediate layer binding strength are high, can give the high ageing-resistant hydrolytic resistance of synthetic leather and the physical property of superelevation.In a word, double-deck employing can overcome two kinds of intumescent coatings defect separately, brings into play to greatest extent its advantage.This can the solvent-free synthetic leather of embossing can be with being equipped with traditional synthetic leather dry process production line that can react the solvent-free feeder of Multi-component Polyurethane and mechanical foaming feeder to produce.
Brief description of the drawings
Fig. 1 is this structure chart before can the solvent-free synthetic leather embossing of embossing;
Fig. 2 is this structure chart after can the solvent-free synthetic leather embossing of embossing;
In figure: 1 polyurethane surface layer, 2 thermoplastic polyurethane foamed interlayers, 3 heat-curable urethane bottoms, 4 base materials.
Detailed description of the invention
As shown in Figure 1, thisly can comprise base material 4 and layer of polyurethane by the solvent-free synthetic leather of embossing, layer of polyurethane comprises polyurethane surface layer 1, thermoplastic polyurethane foamed interlayer 2 and heat-curable urethane bottom 3, and polyurethane surface layer, thermoplastic polyurethane foamed interlayer, heat-curable urethane bottom are connected successively with base material.
This reference dimension that can the solvent-free synthetic leather of embossing is: the thickness of polyurethane surface layer (1) is 0.001～0.09; The thickness of thermoplastic polyurethane foamed interlayer (2) is 5～30, foaming density 300g/l～700g/l; The thickness of heat-curable urethane bottom (3) is 10～70; The thickness of base material (4) is 10～300.
This can manufacture with following methods by the solvent-free synthetic leather of embossing:
A) manufacturing can the solvent-free synthetic leather dry method of embossing semi-finished product, and its flow process is:
Release liners unreels → and mono-be coated with surface layer → Drying and cooling → bis-and be coated with thermoplastic expanded intermediate layer → Drying and cooling → tri-and be coated with the crosslinked half foaming → laminating base material → crosslinking curing of thermosetting foaming bond coating → preliminary drying half → peel off release liners → can the solvent-free synthetic leather dry method of embossing semi-finished product;
B) embossing, post processing, its flow process is:
Can semi-finished product → unreel → embossing → other post processings of the solvent-free synthetic leather dry method of embossing → can the solvent-free synthetic leather finished product of embossing.
It is aqueous polyurethane slurry that step one described in a) is coated with surface layer operation slurry used, can be also solvent borne polyurethane slurry, is preferably aqueous polyurethane slurry; The two described thermoplastic expanded intermediate layer of painting slurry therewiths are the aqueous polyurethane slurry after mechanical foaming; Three described painting thermosetting foaming bond coatings are that multicomponent can react the solvent-free slurry of polyurethane.
Step one described in a) be coated with surface layer operation and common synthetic leather dry method the first cutter coating operation similar, scraper gap is on release liners 0～30; Described two are coated with thermoplastic expanded intermediate layers, and scraper gap can be in release liners 10～60; Described three are coated with thermosettings foaming bond coatings, and scraper gap can be in release liners 20～80.Described crosslinking curing technique is divided into baking oven cross-linking process and/or ripening chamber cross-linking process.
This can the manufacture method of the solvent-free synthetic leather of embossing in, step one described in a) be coated with surface layer operation and common synthetic leather dry method the first cutter coating operation basic identical; The two described aqueous polyurethane slurries that are coated with after the mechanical foaming used of thermoplastic expanded intermediate layer can be the existing disclosed common aqueous polyurethane slurry that foams; Described three are coated with that thermosettings foaming bond coatings can to react the solvent-free slurry of polyurethane identical with disclosed multicomponent, as the application number Chinese invention patent slurry therewith that is 201110254065.5.The base material of step described in a), synthetic leather industry all base fabrics, TPU film, wet method epithelium or other semi-finished product used all can use at present.The embossing technique of step described in b) can be current synthetic leather industry all embossing techniques used, as cold pressing, hot pressing and plastic uptake embossing etc.Step other post processings described in b) can be current synthetic leather industry all aftertreatment technologys used, as printing, roller coat, spray and rub line etc.
This can the solvent-free synthetic leather of embossing, production technology environment-friendly high-efficiency, finished product can embossing, post processing, physical property is high, hydrolysis, kishke feel are strong, soft.
Claims (2)
- One kind can the solvent-free synthetic leather of embossing, comprise base material (4), on base material, there is layer of polyurethane, it is characterized in that described layer of polyurethane comprises polyurethane surface layer (1), thermoplastic polyurethane foamed interlayer (2) and heat-curable urethane bottom (3), polyurethane surface layer, thermoplastic polyurethane foamed interlayer, heat-curable urethane bottom are connected successively with base material.
- 2. as claimed in claim 1 can the solvent-free synthetic leather of embossing, it is characterized in that the thickness of described polyurethane surface layer (1) is 0.01～0.09; The thickness of thermoplastic polyurethane foamed interlayer (2) is 5～30, foaming density 300g/l～700g/l; The thickness of heat-curable urethane bottom (3) is 10～70; The thickness of base material (4) is 10～300.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247493.4U CN203938912U (en) | 2014-05-14 | 2014-05-14 | Can the solvent-free synthetic leather of embossing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247493.4U CN203938912U (en) | 2014-05-14 | 2014-05-14 | Can the solvent-free synthetic leather of embossing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203938912U true CN203938912U (en) | 2014-11-12 |
Family
ID=51858242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420247493.4U Expired - Lifetime CN203938912U (en) | 2014-05-14 | 2014-05-14 | Can the solvent-free synthetic leather of embossing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203938912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322684A (en) * | 2021-04-25 | 2021-08-31 | 佛山市高明尚昂科技有限公司 | Artificial leather capable of being directly embossed and preparation method thereof |
| WO2022100950A1 (en) | 2020-11-13 | 2022-05-19 | Basf Se | Embossable non-solvent pu sheet, a laminate and a synthetic leather comprising the same |
-
2014
- 2014-05-14 CN CN201420247493.4U patent/CN203938912U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022100950A1 (en) | 2020-11-13 | 2022-05-19 | Basf Se | Embossable non-solvent pu sheet, a laminate and a synthetic leather comprising the same |
| CN113322684A (en) * | 2021-04-25 | 2021-08-31 | 佛山市高明尚昂科技有限公司 | Artificial leather capable of being directly embossed and preparation method thereof |
| CN113322684B (en) * | 2021-04-25 | 2022-11-22 | 佛山市高明尚昂科技有限公司 | Artificial leather capable of being embossed directly and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG HEXIN NEW MATERIAL CO., LTD. Free format text: FORMER OWNER: ZHEJIANG HEXIN INDUSTRY GROUP CO., LTD. Effective date: 20150901 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150901 Address after: 314003 East Road, Zhejiang, Jiaxing, No. 2, building 1568 Patentee after: ZHEJIANG HEXIN NEW MATERIAL Co.,Ltd. Address before: The East Road Hexin Industrial Park of Jiaxing city in Zhejiang province 314003 Patentee before: ZHEJIANG HEXIN INDUSTRY GROUP Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20141112 |
|
| CX01 | Expiry of patent term |