CN1081217A - The product and the purposes of the colouring method of cow split leather and preparation therefrom - Google Patents
The product and the purposes of the colouring method of cow split leather and preparation therefrom Download PDFInfo
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- CN1081217A CN1081217A CN 92112725 CN92112725A CN1081217A CN 1081217 A CN1081217 A CN 1081217A CN 92112725 CN92112725 CN 92112725 CN 92112725 A CN92112725 A CN 92112725A CN 1081217 A CN1081217 A CN 1081217A
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Abstract
The invention relates to the colouring method of cow split leather and the product of preparation therefrom, comprise that the raw material skin is weighed, eased back, water squeezing, retanning, neutralization, dyeing and fat-liquoring and fixation, post-treating and other steps.With product of the present invention can make clothes, footwear, gloves, household implements, life is daily and industrial goods, has lovely luster, soft, characteristics that matte is plentiful.
Description
The product that the invention relates to the colouring method of cow split leather and prepare therefrom further is to prepare clothes, household implements about the colouring method of cow split leather with this leather.
Preparation method, colouring method that relevant in the prior art ox-hide is removed from office are a lot, but generally all are limited to the making of animal obverse leather, and what all use greatly in the commercially available product is the animal obverse leather, can make clothes with removing from office as the obverse leather of pig, ox, sheep.Exploitation for the cow split skin has become a prosperous gradually research topic now, but general Study only limits to as shoemaking, as make sneakers, also can see the pig split skin and make the clothes purposes, but at first their preparation method is very ancient, also there are many problems in the quality of second product, most critical be to do the appearance that usefulness such as clothes leather is not seen various products as yet with the cow split skin, interrelated data does not also appear in the newspapers by retrieval.
One of purpose of the present invention is the colouring method of a kind of cow split leather of development, further is the dyeing preparation method of development cow split skin.
Two of purpose of the present invention is to use the double-layer fur of ox, particularly with the prepared cow split leather of method of the present invention make clothes, footwear, gloves, household implements, life is daily and industrial goods.
These purposes of the present invention and other purpose will further embody by following detailed and explanation.
The preparation method of cow split leather of the present invention may further comprise the steps, and at first the raw material skin is weighed, and eases back, water squeezing retanning, neutralization, dyeing and fat-liquoring and fixation, post processing then.
In the present invention, if the raw material skin that uses is as the wet pelt step that then need not ease back, if the raw material skin that uses is dry hide, the use operation that eases back then, process conditions are: liquor ratio 1: 5-15, temperature 30-70 ℃, time 2-7 hour, bleeding agent 1-4wt%; Process conditions are liquor ratio 1: 7-12 preferably, temperature 40-60 ℃, and time 3-6 hour, bleeding agent 1-3wt%; Best process conditions are liquor ratio 1: 9-11, and temperature 45-50 ℃, time 4-5 hour, bleeding agent 1.5-2wt% went out drum and beats horse, and bleeding agent is that leather industry eases back and uses always in the operation as used herein.The process conditions of water squeezing are: the about 20-40wt% of tape drum moisture content, split then, make it the about 1.1-1.5mm of bilayer thickness, shaving makes it bilayer thickness and is about 0.8-1.1mm then, and process conditions are the about 30-40wt% of tape drum moisture content, split then preferably, make it bilayer thickness and be about 1.2-1.5mm, shaving napping then, or buffing napping make it bilayer thickness and are about 0.9-1.1mm.Weigh and make following materials foundation.
In the present invention, the process conditions of retanning are liquor ratio 1: 5-10, temperature 30-60 ℃, mix up temperature, liquor ratio, the blue liquid by drum eye adding 15-30wt% changeed 1-3 hour, added the stone flour of about 1.5wt%, adjusting PH is 3-5, and then changes 1-3 hour, and shrinkage temperature was stopped drum 6-16 hour more than 90 ℃; Process conditions are liquor ratio 1: 6-9 preferably, temperature 30-50 ℃, mix up temperature, liquor ratio, the blue liquid by drum eye adding 15-25wt% changeed 1-2 hour, the stone flour that adds about 1.5wt%, adjusting PH is 3.5-4.5, and then changes 1-2 hour, and shrinkage temperature is more than 95 ℃ the time, stopped drum 8-14 hour, best process conditions are liquor ratio 1: 7-8, temperature 35-40 ℃, mix up temperature, liquor ratio, blue liquid by drum eye adding 18-23wt% changeed 1.5-2 hour, added the stone flour of about 15wt%, regulating PH is 3.8, and then changeed 1-2 hour, shrinkage temperature was stopped drum 8-16 hour more than 100 ℃ the time.The process conditions of neutralization are, wash 10-15 minute with flowing water earlier, adjust the temperature to 30-50 ℃, add sodium bicarbonate 1-4wt%, and liquor ratio 1: 1-4 is in the washing and 0.2-2 hour; Preferably be with process conditions, washed 20-30 minute with flowing water earlier, regulating temperature is 30-40 ℃, adds the sodium bicarbonate of 2-3wt%, liquor ratio 1: 2-3, in the washing and 1-2 hour, best process conditions are to wash 20-30 minute with flowing water earlier, adjust the temperature to 35-40 ℃, add the sodium bicarbonate of 2-3wt%, liquor ratio 1: 2-3 is in the washing and 1-1.5 hour.
In the present invention, the process conditions of dyeing and fat-liquoring are: washing earlier 20-50 minute, and by liquor ratio 1: 1-5, temperature 50-70 ℃, mix up temperature, liquor ratio adds the dyestuff of 3-7wt% then, rotates the fatting agent of adding 15-30wt% after 20-50 minute, rotates 40-70 minute; Process conditions are 30-50 minute preferably, and liquor ratio is 1: 2-5, and temperature 60-70 ℃, mix up temperature, liquor ratio adds the dyestuff of 4-7wt% then, rotates the fatting agent that adds 15-20wt% after 30-50 minute, rotates 50-70 minute; Best process conditions are 40 minutes, and liquor ratio is 1: 4, and 65 ℃ of temperature mix up temperature, and liquor ratio adds the dyestuff of 4-7wt% then, rotates the fatting agent that adds 15-20wt% after 40 minutes, rotates 50-70 minute.Used in the present invention dyestuff can be direct dyes, ACID DYES, REACTIVE DYES, DISPERSE DYES, for example: direct fast black, acid scarlet, acid black, Methanil Yellow G, Acid Red B, acid sky blue A, acid dark brown R, acid violet A, direct yellow GR, direct fast red 4B, direct fast blue F or the like can be used alone dyestuff, also can use by colorant match, for colorant match, those skilled in the art can be made appropriate prescription according to the knowledge of oneself.Fatting agent can be the SE fatting agent, fullness imparting fish oil, and leather softener white oil is washed skin oil, and the mixture of Emulsifier O etc. also can be those that use always in this specialty.
In the present invention, the color fixing process condition of use is: glacial acetic acid 1-4wt%, and blue liquid 0.1-0.5wt%, sulfuric acid 0.1-0.4wt% rotated 30-40 minute, washed then 30-60 minute, went out the drum extension and dried in the air; Be preferably glacial acetic acid 1-3wt%, blue liquid 0.2-0.4wt%, sulfuric acid 0.2-0.3wt% rotated 40-50 minute, washed then 50 minutes, went out the drum extension and dried in the air.Leather after at last extension being dried in the air gets product with the conventional post processing of this professional known technology.
The cow split leather prepared with method of the present invention has lovely luster, and be soft, the characteristics that matte is plentiful, and suitable for making clothes, footwear, gloves, household implements, life is daily and industrial goods etc.
Below further set forth and illustrate the present invention by specific embodiment, but embodiment only be used for the explanation can not limit the present invention.
In this application, all amount, part, percentages all are weight percentage.
Example one:
Raw material skin: the dried double-layer fur of ox.
Ease back: bath raio 1: 8,45 ℃ of temperature, 4 hours time, peregal 0.3%.
Water squeezing: tape drum moisture content 30%, split bilayer thickness 1.1mm, shaving napping bilayer thickness 1.0mm.
Retanning: liquor ratio 1: 10,45 ℃ of temperature, the blue liquid of 25wt% changeed 2 hours, added the 1.5wt% stone flour, and regulating PH is 35, changes 1 hour again, stops drum 10 hours.
Neutralization: flowing water was washed 15 minutes, 30 ℃ of temperature, sodium bicarbonate 1wt%, liquor ratio 1: 2,0.5 hour time.
Dyeing and fat-liquoring: washed 20 minutes, liquor ratio 1: 2,50 ℃ of temperature, as dyestuff: direct fast black G2.8%, acid scarlet 0.41% rotates and added SE fatting agent 6% in 30 minutes, fullness imparting fish oil 5%, leather softener white oil 7%, polyoxyethylene nonylphenol ether 4% rotated 60 minutes.
Fixation: glacial acetic acid 3%, blue liquid 0.2%, sulfuric acid 0.4% rotates and washed then 40 minutes in 50 minutes, goes out drum and hangs to dry in the air and carry out post processing.
Example two:
Raw material skin: cow split skin
Water squeezing: tape drum moisture content 40%, split bilayer thickness 1.3mm, shaving napping bilayer thickness 1.1mm.
Retanning: liquor ratio 1: 10,50 ℃ of temperature, the blue liquid of 25wt% changeed 1.5 hours, added the 1.5wt% stone flour, and regulating PH is 4.2, changes 1.5 hours again, stops drum 16 hours.
Neutralization: flowing water was washed 30 minutes, temperature adjustment to 45 ℃, and sodium bicarbonate 1.5%, liquor ratio 1: 2.5, the time is 0.8 hour.
Dyeing and fat-liquoring: washed 30 minutes, liquor ratio 1: 3,55 ℃ of temperature add dyestuff acid black 2 %, direct fast black 2.5%, acid red 0.2% rotates 35 minutes adding SE fatting agents 8%, fullness imparting fish oil 3%, leather softener white oil 2%, Emulsifier O 2.5%, oil generation 0.7%, soap powder 0.1 single title rotated 50 minutes.
Fixation: glacial acetic acid 2.5%, blue liquid 0.3%, sulfuric acid 0.3% rotated 45 minutes.Washed then 50 minutes, and went out drum and hang to dry in the air and carry out post processing.
Claims (9)
1, a kind of colouring method of cow split leather is characterized in that may further comprise the steps: at first the raw material skin weighed, ease back then, water squeezing, retanning, neutralization again, dyeing and fat-liquoring and fixation, post processing.
2, leather dyeing method as claimed in claim 1 is characterized in that: if the raw material skin that uses is dry hide, then use the operation that eases back, process conditions are: liquor ratio 1: 5-15, temperature 30-70 ℃, time 2-7 hour, bleeding agent 1-4wt% went out drum and beats horse.
3, leather dyeing method as claimed in claim 1, the process conditions that it is characterized in that water squeezing are the about 20-40wt% of tape drum moisture content, and split makes it bilayer thickness and is about 1.1-1.5mm then, shaving napping or buffing napping make it bilayer thickness and are about 0.8-1.1mm then.
4, leather dyeing method as claimed in claim 1, the process conditions that it is characterized in that retanning are liquor ratio 1: 5-10, temperature 30-60 ℃, mix up temperature, liquor ratio, blue liquid by drum eye adding 15-30wt% changeed 1-3 hour, added the about 1.5wt% of stone flour, adjusting PH is 3-5, and then changeed 1-3 hour, shrinkage temperature was stopped drum 6-16 hour more than 90 ℃.
5, leather dyeing method as claimed in claim 1 is characterized in that the process conditions that neutralize are: washed 10-35 minute with flowing water earlier, adjust the temperature to 30-50 ℃, add sodium bicarbonate 1-4wt%, liquor ratio 1: 1-4 is in the washing and 0.5-2 hour.
6, leather dyeing method as claimed in claim 1, the process conditions that it is characterized in that dyeing and fat-liquoring are, washing earlier 20-50 minute, by liquor ratio 1: 1-5, temperature 50-70 ℃, mix up the temperature liquor ratio, add the dyestuff of 3-7wt% then, rotate the fatting agent that adds 15-30wt% after 20-50 minute, rotated 40-70 minute.
7, leather dyeing method as claimed in claim 1 is characterized in that the process conditions of fixation are: glacial acetic acid 1-4wt%, blue liquid 0.1-0.5wt%, sulfuric acid 0.1-0.4wt% rotated 30-60 minute, washed then 30-60 minute, go out the drum extension and dry in the air, conventional post processing gets product.
8, use as the prepared cow split skin of the described leather dyeing method of claim 1-8 with matte.
9, with as the prepared cow split micromicro of the described leather dyeing method of claim 1-8 with making clothes, footwear, gloves, household implements, life is daily and industrial goods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92112725 CN1081217A (en) | 1992-11-09 | 1992-11-09 | The product and the purposes of the colouring method of cow split leather and preparation therefrom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92112725 CN1081217A (en) | 1992-11-09 | 1992-11-09 | The product and the purposes of the colouring method of cow split leather and preparation therefrom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1081217A true CN1081217A (en) | 1994-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92112725 Pending CN1081217A (en) | 1992-11-09 | 1992-11-09 | The product and the purposes of the colouring method of cow split leather and preparation therefrom |
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| CN (1) | CN1081217A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102782160A (en) * | 2009-11-19 | 2012-11-14 | 绿北洋株式会社 | Split leather base for car seats, method for manufacturing same, leather for car seats that uses same split leather base, and method for manufacturing same |
| CN105154594A (en) * | 2015-08-19 | 2015-12-16 | 际华三五一二皮革服装有限公司 | Manufacturing method for high-strength calfskin for special purpose |
| CN105970693A (en) * | 2016-06-12 | 2016-09-28 | 桐乡市恒球皮草制品有限公司 | Dyeing technology of fox, racoon dog and mink skins for making furs |
-
1992
- 1992-11-09 CN CN 92112725 patent/CN1081217A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102782160A (en) * | 2009-11-19 | 2012-11-14 | 绿北洋株式会社 | Split leather base for car seats, method for manufacturing same, leather for car seats that uses same split leather base, and method for manufacturing same |
| CN105154594A (en) * | 2015-08-19 | 2015-12-16 | 际华三五一二皮革服装有限公司 | Manufacturing method for high-strength calfskin for special purpose |
| CN105970693A (en) * | 2016-06-12 | 2016-09-28 | 桐乡市恒球皮草制品有限公司 | Dyeing technology of fox, racoon dog and mink skins for making furs |
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