CN103485204A - Interlayer dyeing method for dyeing superfine fiber synthetic leather - Google Patents
Interlayer dyeing method for dyeing superfine fiber synthetic leather Download PDFInfo
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- CN103485204A CN103485204A CN201310340646.XA CN201310340646A CN103485204A CN 103485204 A CN103485204 A CN 103485204A CN 201310340646 A CN201310340646 A CN 201310340646A CN 103485204 A CN103485204 A CN 103485204A
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- 238000004043 dyeing Methods 0.000 title claims abstract description 88
- 239000002649 leather substitute Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 45
- 239000011229 interlayer Substances 0.000 title claims abstract description 15
- 229920002635 polyurethane Polymers 0.000 claims abstract description 76
- 239000004814 polyurethane Substances 0.000 claims abstract description 76
- 239000004744 fabric Substances 0.000 claims abstract description 75
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 239000006210 lotion Substances 0.000 claims description 45
- 239000010985 leather Substances 0.000 claims description 35
- 239000000126 substance Substances 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 15
- 239000000980 acid dye Substances 0.000 claims description 14
- 238000010792 warming Methods 0.000 claims description 14
- 238000005034 decoration Methods 0.000 claims description 10
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 9
- 239000002280 amphoteric surfactant Substances 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 125000002091 cationic group Chemical group 0.000 claims description 7
- FPVGTPBMTFTMRT-UHFFFAOYSA-L disodium;2-amino-5-[(4-sulfonatophenyl)diazenyl]benzenesulfonate Chemical compound [Na+].[Na+].C1=C(S([O-])(=O)=O)C(N)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 FPVGTPBMTFTMRT-UHFFFAOYSA-L 0.000 claims description 6
- 235000019233 fast yellow AB Nutrition 0.000 claims description 6
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 5
- 235000004279 alanine Nutrition 0.000 claims description 4
- -1 dodecyl alanine Chemical compound 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- QCCKPZOPTXCJPL-UHFFFAOYSA-N dodecyl(dimethyl)azanium;hydroxide Chemical compound [OH-].CCCCCCCCCCCC[NH+](C)C QCCKPZOPTXCJPL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000834 fixative Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 4
- 238000004040 coloring Methods 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 230000002378 acidificating effect Effects 0.000 abstract 2
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 31
- 238000005516 engineering process Methods 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000009941 weaving Methods 0.000 description 8
- 239000004595 color masterbatch Substances 0.000 description 7
- 238000010186 staining Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 238000012356 Product development Methods 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 241001515806 Stictis Species 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
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- 150000002500 ions Chemical class 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Abstract
The invention relates to an interlayer dyeing method for dyeing a superfine fiber synthetic leather. The interlayer dyeing method comprises the following steps of: firstly adding a superfine fiber polyurethane synthetic leather base cloth to a dyeing machine, then adding water and amphoteric surface active agents in parts by weight, increasing temperature to 50-60 DEG C, and treating for 10-20 minutes; then adding a weakly acidic dye A, then increasing the temperature to 90-95 DEG C, dyeing for 50-80 minutes, regulating the pH value of an obtained bath solution A with the superfine fiber polyurethane synthetic leather base cloth soaked to 4.5-5.5 by using acetic acid, and continuously dyeing for 20-30 minutes; finally adding a cationoid high-molecular color fixing agent to an obtained bath solution B with the superfine fiber polyurethane synthetic leather base cloth soaked, treating for 10-20 minutes, adding a weakly acidic dye B, dyeing for 20-30 minutes, and washing. The interlayer dyeing method disclosed by the invention is high in dye absorption rate without generating the problem that heavy metals exceed the standard. Tests prove that the interlayer dyeing method disclosed by the invention has the advantages of uniformity and deepness in dyeing and denseness in surface coloring; the dyed superfine fiber synthetic leather can achieve the color wet rubbing fastness more than 3 grades, achieve the dry rubbing fastness more than 4 grades and achieve the dye absorption rate more than 95%.
Description
Technical field
The invention belongs to the superfine fiber polyurethane leather technical field, be specifically related to a kind of interlayer decoration method for superfine fiber chemical leather dyeing.
Background technology
The natural leather resource-constrained, production process can produce larger pollution, have premium properties simulated composite leather be developed to the pursuit for the mankind.The not weaving fabric of superfine fiber with tridimensional network of wherein take is reinforcing material, the superfine fiber chemical leather obtained by dipping polyurethane, no matter the aspects such as microstructure, or appearance tactile impression internally and physical characteristic and people's snugness of fit have all approached natural leather.According to statistics, by 2012, the annual capacity of Chinese superfine fiber chemical leather was about 9,500 ten thousand square metres of left and right, 7,500 ten thousand square metres of left and right of actual annual production.The existing high-grade sport footwear more than 90% in the whole world adopts the superfine fiber chemical leather manufacture, and high-grade automotive seat also starts to adopt superfine fiber chemical leather to substitute natural leather.
In the fast development of superfine fiber chemical leather process technology, still there are some crucial technology not yet thoroughly to break through, become the serious hindrance of superfine fiber chemical leather development, wherein, the staining technique of super long and slender dimension synthetic leather is exactly one of its Pinch technology of not yet breaking through.
For the dyeing of superfine fiber chemical leather, its technological difficulties mainly contain following two aspects.One, component, superfine fiber chemical leather mainly comprises two kinds of compositions of polyurethane that not weaving fabric of superfine fiber and dipping are filled.These two kinds of constituent structure and performance difference are very large, and single dyestuff and single colouring method are difficult to meet the dyeing requirement of two kinds of compositions, and two kinds of compositions are difficult to the Color that simultaneously reaches good; They are two years old, active group on the superfine fiber chemical leather fiber seldom, the molecule middle-of-chain exists a large amount of carbochains and amide groups, unprotected side chain, only the end at strand just has carboxyl and amino, during dyeing, mainly relies on the deposition of dyestuff self to make the fiber colouring, therefore, most of dyestuffs are difficult to dye, and its washing fastness is very poor, is difficult to reach the dyeing requirement.
Because the dyeing difficulty of superfine fiber chemical leather is larger, cost is higher, and the most superfine fiber chemical leather is not dyeed, just manufacture of intraocular coating on white superfine fiber synthetic leather base cloth, be processed into finished product, the appearance luster of this product comes this in artificial coating.The product that utilizes this superfine fiber chemical leather to manufacture, as shoes and sofa etc. in use easily gall artificial coating and show-through, the serious serviceability that affects product is restricting the fast development of superfine fiber chemical leather.
Staining technique for superfine fiber chemical leather, mainly contain the following aspects.(1) the one pack system dyeing technology that adopts high temperature-pressure dyeing machine to carry out.This technology is applicable to industrialized production in enormous quantities, production efficiency is high, in production process, energy consumption is higher, the dyestuff of one-component is difficult to meet the dyeing requirement of two kinds of compositions of superfine fiber chemical leather simultaneously, wherein the colorability of a certain composition is poor, dye inhomogeneous, dyefastness is bad, not water-fastness.This technique is at present only for the less demanding superfine fiber chemical leather with face coat that dyes, and to the suede of band coating not, this staining technique does not reach requirement at all; (2) the multi-component dyes staining technique that adopts high temperature-pressure dyeing machine to carry out.The selection of multi-component dyes, multi-component dyes is suitable for the painted requirement of the polyurethane of not weaving fabric of superfine fiber and dipping filling separately to a certain extent, but dye under with bath and the same terms, process conditions be difficult to meet simultaneously multi-component dyes on dye requirement, simultaneously, exist the problem of dying in competition between multi-component dyes.Bulk dyeing is inhomogeneous, and dyefastness is bad, not water-fastness, and the dyestuff absorptivity is lower.(3) the low-temperature atmosphere-pressure suction-type staining technique that adopts dyeing machine to carry out.The most obvious technical characterictic of this technology is dyeing under low-temperature atmosphere-pressure, and the energy consumption of dyeing is lower.But this staining technique still exists dyeing inhomogeneous, and dyefastness is bad, not laundry-resistant defect dyes simultaneously under low-temperature atmosphere-pressure, and the dye-uptake of dyestuff is lower, and raffinate contains more dyestuff, pollutes larger.(4) color masterbatch composite spinning technology, say it is dye technology on this technology stricti jurise, rather than staining technique.Its technical characterictic is to sneak into color masterbatch in the process of superfine fibre manufacture, and the superfine fibre obtained will be with the color of the color masterbatch added, and the not weaving fabric of superfine fiber that finally processing obtains just has been with color.The not weaving fabric of superfine fiber obtained by this technology, COLOR FASTNESS is very high, still, the polyurethane composition needs later stage dyeing, the compound physical and mechanical properties that can affect fiber itself of color masterbatch, the combined amount of color masterbatch can not be too large, and the color finally presented is not dense.The painted of early stage can limit the product development in later stage simultaneously, produces product variety single, is difficult to the satisfying the market requirement; (5) color masterbatch composite polyurethane filling technique.Technology type in this technology and (4) seemingly, be exactly in the process of producing superfine fiber chemical leather, when utilizing the non-manufacture cloth of filling polyurethane superfine fibre, sneak into color masterbatch and be filled into together in the non-manufacture cloth of fine fibre in polyurethane, finally obtaining superfine fiber chemical leather with color.The COLOR FASTNESS that this technology obtains is fine.But the not weaving fabric of superfine fiber composition needs later stage dyeing, the painted of early stage can limit the product development in later stage simultaneously, produces product variety single, is difficult to the satisfying the market requirement; (6) adopt the technology of (4) and (5), this method and combine (4) and the technological merit of (5), also embody the technological deficiency of (4) and (5) simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of interlayer decoration method for superfine fiber chemical leather dyeing, the method dyestuff absorptivity is high, Color good, and can not produce the problem of heavy metals exceeding standard.
In order to achieve the above object, the technical solution used in the present invention: in parts by weight, 100 parts of superfine fiber polyurethane synthetic leather base fabrics are added in dyeing machine, add again the water of 1500～2000 parts and the amphoteric surfactant of 0.5～2 part, then be warming up to 50～60 ℃ and process 10～20min, add the weak acid dye A of 3～6 parts, then be warming up to 90～95 ℃ of dyeing 50～80min, obtain being impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric; The pH value that is impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric is adjusted to 4.5～5.5, continues dyeing 20～30min, obtain being impregnated with the body lotion B of superfine fiber polyurethane synthetic leather base fabric; Add 0.5～2 portion of cationic macromolecular solid toner in the body lotion B that is impregnated with superfine fiber polyurethane synthetic leather base fabric, process 10～20min, the weak acid dye B that adds afterwards 1～2 part, dyeing 20～30min obtains being impregnated with the body lotion C of superfine fiber polyurethane synthetic leather base fabric, take out the superfine fiber polyurethane synthetic leather base fabric after dyeing from the body lotion C that is impregnated with superfine fiber polyurethane synthetic leather base fabric, and wash with water totally, complete dyeing.
The mixture that described amphoteric surfactant is one or both arbitrary proportions in dodecyl alanine, dodecyldimethylammonium hydroxide inner salt, dodecyl ethyoxyl sulfobetaines.
The mixture that described weak acid dye A and weak acid dye B are one or more arbitrary proportions in weak acid yellow R, weak acid blue BS, tracid black BG.
The mixture that described cationic macromolecular solid toner is one or both arbitrary proportions in color-fixing agent BE-S, color-fixing agent CS-1, Fixative R 4B.
The described pH value that is impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric adopts acetic acid to be regulated.
Compared with prior art, beneficial effect of the present invention is:
One, the present invention selects amphoteric surfactant as bleeding agent, and the system pH that dyes incipient the time is higher, and amphoteric surfactant presents the characteristic of anion, can play good level dyeing and osmosis, makes even dyeing deep and thorough; When the pH value of utilizing acetic acid will be impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric is transferred to 4.5～5.5, amphoteric surfactant presents cationic characteristic, make dyestuff better to absorb and to fix, therefore, the present invention is usingd amphoteric surfactant and can greatly have been improved the absorptivity of weak acid dye A as bleeding agent.
They are two years old, dyestuff of the present invention is selected weak acid dye, this dyestuff can make not weaving fabric of superfine fiber in superfine fiber polyurethane synthetic leather base fabric and good painted of two kinds of compositions of polyurethane, simultaneously, containing heavy metal ion, solved the problem of the heavy metals exceeding standard that conventional dyes occurs afterwards in dyeing due to weak acid dye;
They are three years old, the present invention adopt cationic macromolecule fixedly agent as dye-fixing agent, can well fix added weak acid dye A, can change the surface characteristic of not weaving fabric of superfine fiber and two kinds of compositions of polyurethane in superfine fiber polyurethane synthetic leather base fabric simultaneously, the positive electric charge on its surface is increased, the weak acid dye B that can make the later stage add absorbs and is fixing, the superfine fiber polyurethane leather even dyeing is deep and thorough, surface colour is dense, the wet rubbing fastness of the superfine fiber chemical leather color after dyeing can reach more than 3 grades, the xerotripsis fastness can reach more than 4 grades, the dyestuff absorptivity can reach more than 95%, therefore, the present invention can play good surface colour effect.
Its four, " interlayer decoration method " of the present invention refer in the situation that adopt anionic dye (anionic dye is weak acid dye) dyeing that dyeing course is divided into to two steps, the centre adding dyestuff for twice, adopt the fixedly agent processing of cationic macromolecule.The interlayer decoration method can be good at solving dyestuff penetration and fixing contradiction, make dye penetration even, and surface colour is dense.
The specific embodiment
Below by the specific embodiment, the present invention is described in further detail, but the present invention has more than and is limited to these examples.
Embodiment 1:
In parts by weight, 100 parts of superfine fiber polyurethane synthetic leather base fabrics are added in dyeing machine, add again the water of 1500 parts and the dodecyl alanine of 0.8 part, then be warming up to 60 ℃ and process 10min, the weak acid yellow R that adds 3 parts, be warming up to again 90 ℃ of dyeing 75min, obtain being impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric; The pH value that is impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric is adjusted to 5.0 with acetic acid, continues dyeing 28min, obtain being impregnated with the body lotion B of superfine fiber polyurethane synthetic leather base fabric; To the color-fixing agent CS-1 that adds 0.5 part in the body lotion B that is impregnated with superfine fiber polyurethane synthetic leather base fabric, process 10min, the weak acid yellow R that adds afterwards 1 part, dyeing 20min obtains being impregnated with the body lotion C of superfine fiber polyurethane synthetic leather base fabric, take out the superfine fiber polyurethane synthetic leather base fabric after dyeing from the body lotion C that is impregnated with superfine fiber polyurethane synthetic leather base fabric, and wash with water totally, complete dyeing.
The color-fixing agent CS-1 that the present embodiment adopts is the CS-1 aldehyde-free colour stabilizer that originates from Hangzhou Yinhu Chemical Co., Ltd.
Embodiment 2:
In parts by weight, 100 parts of superfine fiber polyurethane synthetic leather base fabrics are added in dyeing machine, add again the water of 2000 parts and the dodecyl ethyoxyl sulfobetaines of 2 parts, then be warming up to 50 ℃ and process 20min, the tracid black BG that adds 6 parts, be warming up to again 95 ℃ of dyeing 50min, obtain being impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric; The pH value that is impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric is adjusted to 4.5 with acetic acid, continues dyeing 20min, obtain being impregnated with the body lotion B of superfine fiber polyurethane synthetic leather base fabric; To the Fixative R 4B that adds 2 parts in the body lotion B that is impregnated with superfine fiber polyurethane synthetic leather base fabric, process 20min, the weak acid blue BS that adds afterwards 1.7 parts, dyeing 25min obtains being impregnated with the body lotion C of superfine fiber polyurethane synthetic leather base fabric, take out the superfine fiber polyurethane synthetic leather base fabric after dyeing from the body lotion C that is impregnated with superfine fiber polyurethane synthetic leather base fabric, and wash with water totally, complete dyeing.
Embodiment 3:
In parts by weight, 100 parts of superfine fiber polyurethane synthetic leather base fabrics are added in dyeing machine, add again the water of 1700 parts, the dodecyldimethylammonium hydroxide inner salt of 0.2 part and the dodecyl ethyoxyl sulfobetaines of 0.3 part, then be warming up to 56 ℃ and process 18min, the weak acid blue BS that adds 4 parts, be warming up to again 93 ℃ of dyeing 80min, obtain being impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric; The pH value that is impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric is adjusted to 5.5 with acetic acid, continues dyeing 30min, obtain being impregnated with the body lotion B of superfine fiber polyurethane synthetic leather base fabric; To the color-fixing agent BE-S that adds 1 part in the body lotion B that is impregnated with superfine fiber polyurethane synthetic leather base fabric, process 14min, the weak acid blue BS that adds afterwards 2 parts, dyeing 30min obtains being impregnated with the body lotion C of superfine fiber polyurethane synthetic leather base fabric, take out the superfine fiber polyurethane synthetic leather base fabric after dyeing from the body lotion C that is impregnated with superfine fiber polyurethane synthetic leather base fabric, and wash with water totally, complete dyeing.
The color-fixing agent BE-S that the present embodiment adopts is the anti-crisp color-fixing agent BE-S of yarn that Haining City Mount Huang chemical industry Co., Ltd produces.
Embodiment 4:
In parts by weight, 100 parts of superfine fiber polyurethane synthetic leather base fabrics are added in dyeing machine, add again the water of 1500 parts and the dodecyl alanine of 0.5 part, then be warming up to 50 ℃ and process 10min, add the weak acid yellow R of 2 parts and the weak acid blue BS of 1 part, be warming up to again 90 ℃ of dyeing 80min, obtain being impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric; The pH value that is impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric is adjusted to 5.0 with acetic acid, continues dyeing 28min, obtain being impregnated with the body lotion B of superfine fiber polyurethane synthetic leather base fabric; To the color-fixing agent CS-1 that adds 0.5 part in the body lotion B that is impregnated with superfine fiber polyurethane synthetic leather base fabric, process 10min, the weak acid yellow R that adds afterwards 1 part, dyeing 20min obtains being impregnated with the body lotion C of superfine fiber polyurethane synthetic leather base fabric, take out the superfine fiber polyurethane synthetic leather base fabric after dyeing from the body lotion C that is impregnated with superfine fiber polyurethane synthetic leather base fabric, and wash with water totally, complete dyeing.
The color-fixing agent CS-1 that the present embodiment adopts is the CS-1 aldehyde-free colour stabilizer that originates from Hangzhou Yinhu Chemical Co., Ltd.
Embodiment 5:
In parts by weight, 100 parts of superfine fiber polyurethane synthetic leather base fabrics are added in dyeing machine, add again the water of 2000 parts and the dodecyl ethyoxyl sulfobetaines of 2 parts, then be warming up to 50 ℃ and process 20min, the tracid black BG that adds 5 parts, be warming up to again 95 ℃ of dyeing 50min, obtain being impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric; The pH value that is impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric is adjusted to 4.5 with acetic acid, continues dyeing 20min, obtain being impregnated with the body lotion B of superfine fiber polyurethane synthetic leather base fabric; Add the color-fixing agent BE-S of 1 part and the color-fixing agent CS-1 of 0.5 part in the body lotion B that is impregnated with superfine fiber polyurethane synthetic leather base fabric, process 20min, add afterwards the weak acid blue BS of 1 part and the tracid black BG of 1 part, dyeing 25min obtains being impregnated with the body lotion C of superfine fiber polyurethane synthetic leather base fabric, take out the superfine fiber polyurethane synthetic leather base fabric after dyeing from the body lotion C that is impregnated with superfine fiber polyurethane synthetic leather base fabric, and wash with water totally, complete dyeing.
The color-fixing agent CS-1 that the present embodiment adopts is the CS-1 aldehyde-free colour stabilizer that originates from Hangzhou Yinhu Chemical Co., Ltd, and color-fixing agent BE-S is the anti-crisp color-fixing agent BE-S of yarn that Haining City Mount Huang chemical industry Co., Ltd produces.
Superfine fiber polyurethane leather even dyeing through embodiment of the present invention 1-5 dyeing is deep and thorough, surface colour is dense, the wet rubbing fastness of the superfine fiber chemical leather color after dyeing can reach more than 3 grades, and the xerotripsis fastness can reach more than 4 grades, and the dyestuff absorptivity can reach more than 95%.
Claims (5)
1. the interlayer decoration method for superfine fiber chemical leather dyeing, it is characterized in that, in parts by weight, 100 parts of superfine fiber polyurethane synthetic leather base fabrics are added in dyeing machine, add again the water of 1500～2000 parts and the amphoteric surfactant of 0.5～2 part, then be warming up to 50～60 ℃ and process 10～20min, add the weak acid dye A of 3～6 parts, be warming up to again 90～95 ℃ of dyeing 50～80min, obtain being impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric; The pH value that is impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric is adjusted to 4.5～5.5, continues dyeing 20～30min, obtain being impregnated with the body lotion B of superfine fiber polyurethane synthetic leather base fabric; Add 0.5～2 portion of cationic macromolecular solid toner in the body lotion B that is impregnated with superfine fiber polyurethane synthetic leather base fabric, process 10～20min, the weak acid dye B that adds afterwards 1～2 part, dyeing 20～30min obtains being impregnated with the body lotion C of superfine fiber polyurethane synthetic leather base fabric, take out the superfine fiber polyurethane synthetic leather base fabric after dyeing from the body lotion C that is impregnated with superfine fiber polyurethane synthetic leather base fabric, and wash with water totally, complete dyeing.
2. the interlayer decoration method for superfine fiber chemical leather dyeing according to claim 1, is characterized in that: the mixture that described amphoteric surfactant is one or both arbitrary proportions in dodecyl alanine, dodecyldimethylammonium hydroxide inner salt, dodecyl ethyoxyl sulfobetaines.
3. the interlayer decoration method for superfine fiber chemical leather dyeing according to claim 1, is characterized in that: the mixture that described weak acid dye A and weak acid dye B are one or more arbitrary proportions in weak acid yellow R, weak acid blue BS, tracid black BG.
4. the interlayer decoration method for superfine fiber chemical leather dyeing according to claim 1, is characterized in that: the mixture that described cationic macromolecular solid toner is one or both arbitrary proportions in color-fixing agent BE-S, color-fixing agent CS-1, Fixative R 4B.
5. the interlayer decoration method for superfine fiber chemical leather dyeing according to claim 1, it is characterized in that: the described pH value employing acetic acid that is impregnated with the body lotion A of superfine fiber polyurethane synthetic leather base fabric is regulated.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104179031A (en) * | 2014-08-01 | 2014-12-03 | 陕西科技大学 | Successively-impregnating after-finishing method of suede-like superfine fiber synthetic leather |
| CN106283729A (en) * | 2016-08-12 | 2017-01-04 | 上海华峰超纤材料股份有限公司 | The two-bath process method of superfine fiber chemical leather |
| CN107237180A (en) * | 2017-06-27 | 2017-10-10 | 武汉纺织大学 | A kind of method of natural plant dye exhaust dyeing cellulosic fabric |
| CN107287935A (en) * | 2017-06-27 | 2017-10-24 | 武汉纺织大学 | A kind of method for improving natural dye dying performance |
| CN108914633A (en) * | 2018-06-19 | 2018-11-30 | 兰州科天水性高分子材料有限公司 | A kind of aqueous polyurethane superfine fiber synthetic leather bass colouring method |
| CN109134819A (en) * | 2018-03-15 | 2019-01-04 | 浙江德美博士达高分子材料有限公司 | Determine the preparation method of the water-base resin of island microfiber synthetic leather impregnation |
| CN109385919A (en) * | 2017-08-04 | 2019-02-26 | 福建大联新型材料发展有限公司 | A kind of preparation method of microfiber synthetic leather |
| CN112127170A (en) * | 2020-08-31 | 2020-12-25 | 浙江圣大皮革有限公司 | Dyeing process of superfine fiber synthetic leather |
| CN115094655A (en) * | 2022-07-19 | 2022-09-23 | 陕西科技大学 | Ultrasonic turbine dyeing method for microfiber leather |
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| CN104179031A (en) * | 2014-08-01 | 2014-12-03 | 陕西科技大学 | Successively-impregnating after-finishing method of suede-like superfine fiber synthetic leather |
| CN106283729A (en) * | 2016-08-12 | 2017-01-04 | 上海华峰超纤材料股份有限公司 | The two-bath process method of superfine fiber chemical leather |
| CN107237180A (en) * | 2017-06-27 | 2017-10-10 | 武汉纺织大学 | A kind of method of natural plant dye exhaust dyeing cellulosic fabric |
| CN107287935A (en) * | 2017-06-27 | 2017-10-24 | 武汉纺织大学 | A kind of method for improving natural dye dying performance |
| CN109385919A (en) * | 2017-08-04 | 2019-02-26 | 福建大联新型材料发展有限公司 | A kind of preparation method of microfiber synthetic leather |
| CN109134819A (en) * | 2018-03-15 | 2019-01-04 | 浙江德美博士达高分子材料有限公司 | Determine the preparation method of the water-base resin of island microfiber synthetic leather impregnation |
| CN108914633A (en) * | 2018-06-19 | 2018-11-30 | 兰州科天水性高分子材料有限公司 | A kind of aqueous polyurethane superfine fiber synthetic leather bass colouring method |
| CN108914633B (en) * | 2018-06-19 | 2021-07-30 | 兰州科天水性高分子材料有限公司 | Waterborne polyurethane superfine fiber synthetic leather Bass dyeing method |
| CN112127170A (en) * | 2020-08-31 | 2020-12-25 | 浙江圣大皮革有限公司 | Dyeing process of superfine fiber synthetic leather |
| CN112127170B (en) * | 2020-08-31 | 2022-08-09 | 浙江圣大新材料有限公司 | Dyeing process of superfine fiber synthetic leather |
| CN115094655A (en) * | 2022-07-19 | 2022-09-23 | 陕西科技大学 | Ultrasonic turbine dyeing method for microfiber leather |
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