CN104250939B - Finished leather is color-fixing method again - Google Patents
Finished leather is color-fixing method again Download PDFInfo
- Publication number
- CN104250939B CN104250939B CN201310265573.2A CN201310265573A CN104250939B CN 104250939 B CN104250939 B CN 104250939B CN 201310265573 A CN201310265573 A CN 201310265573A CN 104250939 B CN104250939 B CN 104250939B
- Authority
- CN
- China
- Prior art keywords
- color
- finished leather
- fixing method
- leather
- method again
- 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.)
- Active
Links
- 239000010985 leather Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 38
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004971 Cross linker Substances 0.000 claims abstract description 20
- 238000005507 spraying Methods 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 12
- 239000000049 pigment Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 8
- 229920002472 Starch Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 235000019698 starch Nutrition 0.000 description 4
- 239000008107 starch Substances 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000001238 wet grinding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The present invention relates to a kind of leather color-fixing method, especially relate to a kind of finished leather color-fixing method again, this finished leather color-fixing method again, directly sprays the spray coating liquor containing aziridine crosslinker on described finished leather surface, toasts 2 ~ 3s after having sprayed under 100 ~ 105 DEG C of conditions, then stand overnight, described spray coating liquor is made up of the component of following total amount part: aziridine crosslinker 8 ~ 12%, pigment paste 0 ~ 0.12%, and surplus is water, temperature in described standing process is 30 ~ 35 DEG C, and time of repose is 8 ~ 12h.The finished leather of present invention color-fixing method again is simple to operate, cost is low, colour fixation good, improves the resistance to dry and wet mill fastness of leatherware, nor affects on outward appearance and the feel of leather simultaneously.
Description
Technical field
The present invention relates to a kind of leather color-fixing method, especially relate to a kind of finished leather color-fixing method again.
Background technology
Finished leather (typically refers to workman once after being found to have wear resistance difference and causes in spray fixation layer operational error etc.), has two kinds by the way of traditional habit；One is the coatings grinding off surface, again changes the leather doing other low class, and so, loss and temporal waste economically are very big；Another kind is to do over again, spray one layer of solvent following layer on the surface of finished leather, then spray plane is starched or spray fixation layer again, but this not only cost of doing over again is high, complex process but also there is very big hidden danger of quality, we repeatedly receive the complaint of client and say that the coating of leather surface drops these years.By analysis, these bonding intensities fallen between that aspect slurry and the previous fixation layer repasted up after coating is all because doing over again are poor caused, it would therefore be highly desirable to develop the finished leather color-fixing method again that a kind of technique is simple, cost is low, colour fixation is good.
Summary of the invention
The finished leather that it is an object of the invention to solve prior art is done over again in laking process, the deficiency that bonding intensity between starch adhesive and previous fixation layer is poor, the coating of leather surface easily drops, it is provided that a kind of finished leather color-fixing method again, the method is simple to operate, cost is low, and colour fixation is good.
The technical solution adopted for the present invention to solve the technical problems is:
Finished leather is color-fixing method again, directly sprays the spray coating liquor containing aziridine crosslinker on described finished leather surface, toasts 2 ~ 3s, then stand overnight after having sprayed under 100 ~ 105 DEG C of conditions.Aziridine crosslinker can cross-link under dry conditions, aziridine crosslinker can not only with fixation before time the polyurethane secondary response again that do not completely enclose, and the carboxyl system in the space of top layer and the acrylic resin of middle priming coat that can also pass through reacts, thus improve the resistance to dry and wet mill fastness of leatherware, nor affect on outward appearance and the feel of leather simultaneously.
As preferably, described spray coating liquor is made up of the component of following total amount part: aziridine crosslinker 8 ~ 12%, pigment paste 0 ~ 0.12%, and surplus is water.The composition of spray coating liquor is reasonable, when needing to mix colours, pigment paste can adjust the color of finished product leather surface, in aziridine crosslinker and not completely enclosed polyurethane or middle priming coat in acrylic resin during carboxyl reaction, pigment paste also can be fixing by effectively distribution, the surface color not fugitive color after finished leather fixation again.
As preferably, described spray coating liquor is made up of the component of following total amount part: aziridine crosslinker 10%, pigment paste 0.10%, and surplus is water.
As preferably, the temperature in described standing process is 30 ~ 35 DEG C, and time of repose is 8 ~ 12h.Standing overnight to make the resistance to wet grinding fastness of finished leather bring up to more than 300 times from 150 times.
The invention has the beneficial effects as follows: the present invention substantially reduces work flow when finished leather is done over again, eliminate the process of spraying following layer, starch adhesive and effect layer, directly spray aziridine crosslinker solution, aziridine crosslinker can not only with fixation before time the polyurethane secondary response again that do not completely enclose, and the space that can also pass through top layer reacts with carboxyl system in acrylic resin in middle primary coat, thus improve the resistance to dry and wet mill fastness of leatherware, nor affect on outward appearance and the feel of leather simultaneously；Being also added with pigment paste in aziridine crosslinker, in order to adjust the color of finished leather, adopt the finished leather face coat difficult drop-off of this method fixation again, color is not easy to fade.
Accompanying drawing explanation
The finished leather of Fig. 1 prior art color-fixing method again；
The finished leather of Fig. 2 present invention color-fixing method again.
Detailed description of the invention
Below by specific embodiment, in conjunction with accompanying drawing, technical scheme is described in further detail.
Embodiment 1:
The color-fixing method again of finished leather in prior art as shown in Figure 1, the finished leather done over again first sprays solvent following layer, then starch adhesive and effect layer are sprayed, then fixation again, this not only cost of doing over again is high, complex process but also there is very big hidden danger of quality, the coating on finished leather surface easily drops, and by analysis, the bonding intensity that coating drops between that aspect slurry and the previous fixation layer that repaste up after being all because doing over again is poor caused.
The finished leather of the present invention as shown in Figure 2 color-fixing method again, the spray coating liquor containing aziridine crosslinker is directly sprayed on the described finished leather surface done over again, under 100 DEG C of conditions, 3s is toasted after having sprayed, described spray coating liquor is made up of the component of following total amount part: the water mix homogeneously of aziridine crosslinker 8.0% and 92.0% and obtain, by described finished leather in 30 DEG C after having toasted, stand 12h, then can the qualified outbound of normal inspection.
Embodiment 2:
Finished leather is color-fixing method again, the spray coating liquor containing aziridine crosslinker is directly sprayed on the described finished leather surface done over again, under 105 DEG C of conditions, 2s is toasted after having sprayed, described spray coating liquor is made up of the component of following total amount part: aziridine crosslinker 12%, the water mix homogeneously of pigment paste 0.12% and 87.88% and obtain, by described finished leather in 35 DEG C after having toasted, stand 8h, then can the qualified outbound of normal inspection.
Embodiment 3:
Finished leather is color-fixing method again, the spray coating liquor containing aziridine crosslinker is directly sprayed on the described finished leather surface done over again, under 102 DEG C of conditions, 2s is toasted after having sprayed, described spray coating liquor is made up of the component of following total amount part: aziridine crosslinker 10%, the water mix homogeneously of pigment paste 0.10% and 89.9% and obtain, by described finished leather in 32 DEG C after having toasted, stand 10h, then can the qualified outbound of normal inspection.
The finished leather of prior art color fixing process again is as follows with the effectiveness of the finished leather color fixing process again of the present invention and risk contrast:
A: the finished leather of prior art color fixing process again:
A. coatings of doing over again again is not strong or uneven because of adhesion, is easily generated coating shedding；
B. because doing over again final or to spray fixation layer, so as well as facing the wear resistance underproof risk again that operational error causes；
C. after doing over again, coating thick affects feel and leather softness；
B: the finished leather of present invention color fixing process again:
A. because solvent following layer, starch adhesive and effect layer need not be sprayed, so being absent from the risk that coating is likely to come off；
B. spray cross-linking agent stands after drying and original resistance to wet grinding fastness overnight can be made to bring up to 300 times from 150 times.
. it was verified that do not affect feel and the pliability of leather after spray cross-linking agent.
The cost statistics of the finished leather color fixing process again of the finished leather of prior art color fixing process again and the present invention: (for a 1525 colors)
Shown by upper table, the cost of material of the finished leather of present invention color fixing process again is substantially reduced, be the finished leather color fixing process again of prior art cost of material 26.1%, additionally, the technological process of the present invention is greatly shortened, it is possible to significantly improve the work efficiency of production.
Embodiment described above is the one preferably scheme of the present invention, not the present invention is done any pro forma restriction, also has other variant and remodeling under the premise without departing from the technical scheme described in claim.
Claims (2)
1. finished leather color-fixing method again, it is characterised in that: directly spray the spray coating liquor containing aziridine crosslinker on finished leather surface to be done over again, under 100～105 DEG C of conditions, toast 2～3s after having sprayed, then stand overnight；Described spray coating liquor is made up of the component of following weight percents: aziridine crosslinker 8～12%, pigment paste 0～0.12%, and surplus is water, and the temperature in described standing process is 30～35 DEG C, and time of repose is 8～12h.
2. finished leather according to claim 1 color-fixing method again, it is characterised in that: described spray coating liquor is made up of the component of following weight percents: aziridine crosslinker 10%, pigment paste 0.10%, and surplus is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310265573.2A CN104250939B (en) | 2013-06-28 | 2013-06-28 | Finished leather is color-fixing method again |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310265573.2A CN104250939B (en) | 2013-06-28 | 2013-06-28 | Finished leather is color-fixing method again |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104250939A CN104250939A (en) | 2014-12-31 |
| CN104250939B true CN104250939B (en) | 2016-07-06 |
Family
ID=52186175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310265573.2A Active CN104250939B (en) | 2013-06-28 | 2013-06-28 | Finished leather is color-fixing method again |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104250939B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115418418A (en) * | 2022-09-26 | 2022-12-02 | 焦作隆丰皮草企业有限公司 | Method for stripping leather coating |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643452A (en) * | 2011-02-16 | 2012-08-22 | 中国中化股份有限公司 | Method for improving aziridine cross-linking agent stability |
| CN102899918A (en) * | 2012-10-11 | 2013-01-30 | 福建可利达合成纤维有限公司 | Method for producing wet-process waterborne polyurethane synthetic leather coating base |
| CN103114459A (en) * | 2013-03-11 | 2013-05-22 | 广西鑫深科技有限公司 | Fragrant artificial leather and preparation method thereof |
-
2013
- 2013-06-28 CN CN201310265573.2A patent/CN104250939B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643452A (en) * | 2011-02-16 | 2012-08-22 | 中国中化股份有限公司 | Method for improving aziridine cross-linking agent stability |
| CN102899918A (en) * | 2012-10-11 | 2013-01-30 | 福建可利达合成纤维有限公司 | Method for producing wet-process waterborne polyurethane synthetic leather coating base |
| CN103114459A (en) * | 2013-03-11 | 2013-05-22 | 广西鑫深科技有限公司 | Fragrant artificial leather and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| "皮革涂饰用常温交联剂的研究新进展";童蓉等;《皮革与化工》;20110425;第28卷(第2期);16-21 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104250939A (en) | 2014-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104372599A (en) | Processing method for enabling denim fabric to have ageing visual effect | |
| CN106436373A (en) | Pigment printing technology of cotton ramie fabric | |
| CN104562803A (en) | Fabric fixing agent | |
| CN103614934A (en) | Fabric color fixing agent | |
| CN102601834B (en) | Surface color-fixing dye for mat rush products and color-fixing method | |
| CN104250939B (en) | Finished leather is color-fixing method again | |
| CN106149416A (en) | The colouring method of wool top | |
| CN103266511B (en) | Novel fabric fixing agent | |
| CN102943140A (en) | Method for improving water-based coating goat clothing leather color fastness to rubbing | |
| CN104746351A (en) | Production method of simulated crystallized leather | |
| CN105625054A (en) | Jacquard terylene fabric digital direct injection printing technology processing agent and jacquard terylene fabric digital direct injection printing process | |
| CN105696351B (en) | Uvr Protective Fabric, anti-ultraviolet paint | |
| CN110117454A (en) | A kind of aqueous antifouling treatment agent and its preparation method and application | |
| CN104264512A (en) | Printing method | |
| CN104060486A (en) | Random wax dyeing technology | |
| CN104588299B (en) | Diamond is bright to dodge effect spraying coating process | |
| CN103669040A (en) | Textile dyestuff | |
| CN106121150B (en) | A kind of moisture resistance high-air-permeability wallpaper and preparation method thereof | |
| CN104420199A (en) | Leatherware modification processing composite agent | |
| CN112239955A (en) | Preparation method of fabric capable of changing color when meeting water | |
| CN104593529A (en) | Non-volatile low-pollution full-waterborne genuine leather finishing process | |
| CN109629246A (en) | A kind of organosilicon ecological synthetic leather and preparation method thereof | |
| CN103753680A (en) | Teakwood imitating reconsolidated bamboo floor processing technology | |
| CN103290694B (en) | Textile finishing agent | |
| CN103243591A (en) | Improved dye fixing agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for re fixing finished leather color Effective date of registration: 20231218 Granted publication date: 20160706 Pledgee: Zhejiang Tongxiang rural commercial bank Limited by Share Ltd. Gaoqiao sub branch Pledgor: TONGXIANG GAOQIAO LEATHER Co.,Ltd. Registration number: Y2023980071624 |