CN103603216A - Leather retanning and dyeing process - Google Patents
Leather retanning and dyeing process Download PDFInfo
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- CN103603216A CN103603216A CN201310614515.6A CN201310614515A CN103603216A CN 103603216 A CN103603216 A CN 103603216A CN 201310614515 A CN201310614515 A CN 201310614515A CN 103603216 A CN103603216 A CN 103603216A
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Abstract
The invention relates to the field of leather processing and provides a leather retanning and dyeing process through which the dyeing accuracy and color fullness can be obviously improved, the manual labor is effectively saved, the energy consumption and material cost are reduced, the environmental pollution is reduced and the dyeing wastewater treatment difficulty is reduced. The leather retanning and dyeing process sequentially comprises the process steps: bleaching, retanning, neutralizing, filling, stuffing and dyeing, wherein the pH in the dyeing process is controlled to be 3.5-4.5, and the dye amount is 1.5-2.5 percent.
Description
Technical field
The present invention relates to leather processing field, relate in particular to a kind of leather retanning dyeing.
Background technology
Traditional leather retanning dyeing is: rinsing → retanning → neutralization → filling, dyeing → stuffing → chromatography, dyeing process carries out in the middle of retanning dyeing, after dyeing, to carry out stuffing processing, after stuffing, also need the chromatography of carrying out to process, from dyeing stage casing, start all will give off the waste liquid that contains dyestuff like this, even have technique rinsing time need add dyestuff to dye in advance, the waste water that this technique is discharged from start to finish all contains dyestuff, increase intractability, common skin retanning dyeing per ton needs water more than 20 tons, the waste water that at least discharge contains dyestuff is more than 12 tons, brought more serious environmental problem.Simultaneously traditional leather retanning dyeing step is comparatively complicated, dyeing normal and filling, stuffing, retanning the multiple working procedure such as even neutralize and carry out successively in same body lotion, inter process is not significantly distinguished, with the combination of leather, there is competitive relation in dyestuff and grease, filler, affect Color, need to use more material and manpower simultaneously.
Therefore, adopt above-mentioned traditional leather retanning dyeing to process leather, what produce is a large amount of more difficult containing dye wastewater, larger to the pollution of environment; The effect of leather coloring is poor, and the degree of accuracy is lower, and color and luster plumpness is poor.
Summary of the invention
Therefore,, for above content, the invention provides and a kind ofly significantly improve the dyeing degree of accuracy and color and luster plumpness, effectively save manpower, reduce energy consumption and material cost, reduce the pollution of environment, reduce the leather retanning dyeing of dyeing waste intractability.
For achieving the above object, the present invention is achieved by the following technical solutions: a kind of leather retanning dyeing, comprise successively rinsing, retanning, neutralization, filling, stuffing, dyeing process, and in described dyeing process, pH is controlled at 3.5～4.5.
Further improve and be: described dyeing process is: take leather weight as materials foundation, first add 1.5～2.5% dyestuff and the dye leveller of 0.2-0.5%, react 30～60 min; Secondly, add 1～1.5% formic acid, react 15～30 min; Then the chrome tanning agent that adds 0.3～0.6 %, reacts 30～60 min; Finally, add 1～1.5% cationic active agent, react after 15～30 min, after washing is clean, go out skin.
Further improve and be: the parameter in described dyeing process is: liquor ratio 1.0～2.0, temperature are that 38～42 ℃, dyeing time are 1.5～2.5h, the uniform rotation of mechanism mode, and speed is 6-10 r/min.
Further improve and be: described dyestuff is that one or more in anionic dye, cation dyes, amphion dyestuff are with arbitrarily than the mixture mixing.
By adopting aforementioned techniques scheme, the invention has the beneficial effects as follows: the present invention changes to " rinsing → retanning → neutralization → filling → dyeing " by traditional " rinsing → retanning → neutralization → dyeing → stuffing → chromatography " technological process, has the following advantages:
1, propose a kind of new dyeing, reduced chromatography operation, shortened the reaction time; Because pH is lower, can reduce the use amount of color-fixing agent simultaneously; Reduce energy consumption, saved manpower, saved cost;
2, described rinsing, retanning, neutralization, filling, stuffing operation are conventional operation and do not use any dyestuff, dyeing process is without filler, retanning agent, finish impact, and dyeing process finally carries out, not only dyestuff use amount is fewer than conventional, and Color is good, the dyeing degree of accuracy is high, and color and luster plumpness is good;
3, dyestuff strengthens with the binding ability of leather, and in residual solution, dyestuff content is lower than normal dyeing; Reduced the discharge capacity containing pigment wastewater, in retanning dyeing, leather discharge waste water containing dye per ton drops to below 5 tons above from 12 tons, has reduced sewage disposal difficulty, more environmental protection simultaneously.
Adopt the present invention to shorten the production cycle, save manpower and drum equipment, reduce energy consumption and material cost, the more conventional operation of dyeing process reduces costs more than 5%; Because dyestuff content in residual solution is lower than normal dyeing, the discharge capacity of waste water containing dye significantly reduces, and has reduced the intractability of dyeing waste; Dyeing simultaneously is in the end carried out, and influence factor is little, and the dyeing degree of accuracy is high, and color and luster plumpness is good; Be the New-type leather dyeing of a kind of " resource-conserving, environmentally friendly ", there is good society, economy and environment benefit.
The specific embodiment
Below with reference to specific embodiment, describe embodiments of the present invention in detail, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure of reaching technique effect can fully understand and implement according to this.
If do not specialize, the conventional means that the technological means adopting in embodiment is well known to those skilled in the art, the reagent adopting and product are also and can business obtain.The source of agents useful for same, trade name and be necessary to list its constituent person are all indicated when occurring first.
Embodiment mono-
A leather retanning dyeing, comprises the following steps:
(1) adopt rotary drum operation, mechanism mode is uniform rotation, and rotating speed is 8r/min, carries out according to a conventional method rinsing, retanning, neutralization, filling, stuffing operation, does not use any dyestuff in these operations;
(2) in the rotary drum at the leather place of processing through (1), adding temperature is water 150 weight portions of 40 ℃, regulate pH to 3.6, add brown dye leather NGR(producer: dyestuff factory, Qingdao) 2.5 weight portions, the addition product that adds levelling agent INVADERM AL(aliphatic acid and fatty amine and oxirane, manufacturer: 0.2 weight portion Switzerland CIBA-GEIGY company), react 60 min, add formic acid 1.0 weight portions, react 20 min, add chromium retanning agent BITAN CHROM26/33(producer: 0.6 weight portion Tag Industrial Co., Ltd.), react 50 min, add cationic fat liquor BITOIL SUP(producer: 0.6 weight portion Tag Industrial Co., Ltd.), reaction 30min, washing, goes out drum after cleaning.
Embodiment bis-
A leather retanning dyeing, comprises the following steps:
1) adopt rotary drum operation, mechanism mode is uniform rotation, and rotating speed is 7r/min, by carrying out according to a conventional method rinsing, retanning, neutralization, filling, stuffing operation, does not use any dyestuff in these operations;
2) in the rotary drum at the leather place of processing through (1), adding temperature is water 160 weight portions of 42 ℃, regulating pH is 3.9, add black dyes BLACK T(producer: Si Taer) 2 weight portions, the addition product that adds levelling agent INVADERM AL(aliphatic acid and fatty amine and oxirane, manufacturer: 0.2 weight portion Switzerland CIBA-GEIGY company), react 40 min, add formic acid 1.2 weight portions, reaction 15min, add chromium powder CHROMOSAL BF(producer, bright Sheng chemistry) 0.5 weight portion, reaction 50min, finally add cationic fat liquor Catalix GS Liquid(aliphatic acid condensation product) 0.5 weight portion, reaction 15min, after washing is clean, go out drum.
In the present invention, described rinsing, retanning, neutralization, fill, stuffing operation is conventional operation, in described dyeing process, pH is controlled at 3.5～4.5, in retanning procedures, can use chrome tanning agent, vegetable tanning agent and other tanning agent and two or more mixture thereof, in dyeing process, each parameter all can realize object of the present invention in following scope: liquor ratio 1.0～2.0, temperature is 38～42 ℃, dyeing time is 1.5～2.5h, the uniform rotation of mechanism mode, speed is 6-10 r/min, first add 1.5～2.5% dyestuff and the dye leveller of 0.2-0.5%, reaction 30～60 min, secondly, add 1～1.5% formic acid, react 15～30 min, then the chrome tanning agent that adds 0.3～0.6 %, reacts 30～60 min, finally, add 1～1.5% cationic active agent, react after 15～30 min, after washing is clean, go out skin.Described dyestuff be in cation dyes, anionic dye, amphion dyestuff any one or two or more all can realize object of the present invention than the mixture mixing arbitrarily.
The present invention changes to " rinsing → retanning → neutralization → filling, retanning, stuffing → dyeing " by traditional " rinsing → retanning → neutralization → dyeing → stuffing → chromatography " technological process, have the following advantages: 1, proposed a kind of new dyeing, reduce chromatography operation, shortened the reaction time; Because pH is lower, can reduce the use amount of color-fixing agent simultaneously; Reduce energy consumption, saved manpower, saved cost; 2, described rinsing, retanning, neutralization, filling, stuffing operation be conventional operation and do not use any dyestuff, and dyeing process is without filler, retanning agent, finish impact, and dyeing process finally carries out, can reduce dyestuff use amount, Color is good, and the dyeing degree of accuracy is high, and color and luster plumpness is good; 3, dyestuff strengthens with the binding ability of leather, and in residual solution, dyestuff content is lower than normal dyeing; Reduced the discharge capacity containing pigment wastewater, in retanning dyeing, leather discharge waste water containing dye per ton drops to below 5 tons above from 12 tons, has reduced sewage disposal difficulty, more environmental protection simultaneously.Adopt the present invention to shorten the production cycle, save manpower and drum equipment, reduce energy consumption and material cost, the more conventional operation of dyeing process reduces costs more than 5%; Because dyestuff content in residual solution is lower than normal dyeing, the discharge capacity of waste water containing dye significantly reduces, and has reduced the intractability of dyeing waste; Dyeing simultaneously is in the end carried out, and influence factor is little, and the dyeing degree of accuracy is high, and color and luster plumpness is good; Be the New-type leather dyeing of a kind of " resource-conserving, environmentally friendly ", there is good society, economy and environment benefit.
Above record, only, for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (4)
1. a leather retanning dyeing, is characterized in that: comprise successively rinsing, retanning, neutralization, filling, stuffing, dyeing process, in described dyeing process, pH is controlled at 3.5～4.5.
2. leather retanning dyeing according to claim 1, is characterized in that, described dyeing process is: take leather weight as materials foundation, first add 1.5～2.5% dyestuff and the dye leveller of 0.2-0.5%, react 30～60 min; Secondly, add 1～1.5% formic acid, react 15～30 min; Then the chrome tanning agent that adds 0.3～0.6 %, reacts 30～60 min; Finally, add 1～1.5% cationic active agent, react after 15～30 min, after washing is clean, go out skin.
3. leather retanning dyeing according to claim 2, is characterized in that: the parameter in described dyeing process is: liquor ratio 1.0～2.0, temperature are 38～42 ℃, the uniform rotation of mechanism mode, and speed is 6-10 r/min.
4. leather retanning dyeing according to claim 2, is characterized in that: described dyestuff is that one or more in anionic dye, amphion dyestuff, cation dyes are with arbitrarily than the mixture mixing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310614515.6A CN103603216B (en) | 2013-11-28 | 2013-11-28 | A kind of leather retanning dyeing |
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| CN201310614515.6A CN103603216B (en) | 2013-11-28 | 2013-11-28 | A kind of leather retanning dyeing |
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| CN103603216B CN103603216B (en) | 2015-11-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924460A (en) * | 2014-04-29 | 2014-07-16 | 湖南省怀其皮革集团制革有限公司 | Method for dyeing anionic dye in two-layer organic tanning leather production |
| CN104293986A (en) * | 2014-08-14 | 2015-01-21 | 兴业皮革科技股份有限公司 | Waterproof cow leather preparation technology |
| CN107604109A (en) * | 2017-08-04 | 2018-01-19 | 山东德信皮业有限公司 | A kind of environmentally friendly dyeing of leather |
| CN107936842A (en) * | 2017-11-01 | 2018-04-20 | 兴业皮革科技股份有限公司 | A kind of production method with 3D effect leather |
| TWI655334B (en) * | 2015-03-17 | 2019-04-01 | 日商可樂麗股份有限公司 | Feather-like artificial leather dyed with cationic dyes and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080134A (en) * | 2010-12-21 | 2011-06-01 | 泉州锦兴皮业有限公司 | Manufacturing process of semi-vegetable tanned wrinkled leather of cow leather |
| CN102517409A (en) * | 2011-11-28 | 2012-06-27 | 郑州科信化工有限公司 | Leather retanning method |
| CN102864660A (en) * | 2012-09-29 | 2013-01-09 | 桐乡市雄鹰皮草有限公司 | Tanning and dyeing process for mink fur and leather |
| CN102943137A (en) * | 2012-09-25 | 2013-02-27 | 兴业皮革科技股份有限公司 | Preparation method of crazing soft bag leather |
| CN102943138A (en) * | 2012-09-25 | 2013-02-27 | 兴业皮革科技股份有限公司 | Manufacturing method of highly tear resistant ultrathin boot leather |
-
2013
- 2013-11-28 CN CN201310614515.6A patent/CN103603216B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080134A (en) * | 2010-12-21 | 2011-06-01 | 泉州锦兴皮业有限公司 | Manufacturing process of semi-vegetable tanned wrinkled leather of cow leather |
| CN102517409A (en) * | 2011-11-28 | 2012-06-27 | 郑州科信化工有限公司 | Leather retanning method |
| CN102943137A (en) * | 2012-09-25 | 2013-02-27 | 兴业皮革科技股份有限公司 | Preparation method of crazing soft bag leather |
| CN102943138A (en) * | 2012-09-25 | 2013-02-27 | 兴业皮革科技股份有限公司 | Manufacturing method of highly tear resistant ultrathin boot leather |
| CN102864660A (en) * | 2012-09-29 | 2013-01-09 | 桐乡市雄鹰皮草有限公司 | Tanning and dyeing process for mink fur and leather |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924460A (en) * | 2014-04-29 | 2014-07-16 | 湖南省怀其皮革集团制革有限公司 | Method for dyeing anionic dye in two-layer organic tanning leather production |
| CN104293986A (en) * | 2014-08-14 | 2015-01-21 | 兴业皮革科技股份有限公司 | Waterproof cow leather preparation technology |
| TWI655334B (en) * | 2015-03-17 | 2019-04-01 | 日商可樂麗股份有限公司 | Feather-like artificial leather dyed with cationic dyes and manufacturing method thereof |
| CN107604109A (en) * | 2017-08-04 | 2018-01-19 | 山东德信皮业有限公司 | A kind of environmentally friendly dyeing of leather |
| CN107936842A (en) * | 2017-11-01 | 2018-04-20 | 兴业皮革科技股份有限公司 | A kind of production method with 3D effect leather |
| CN107936842B (en) * | 2017-11-01 | 2020-04-21 | 兴业皮革科技股份有限公司 | Production method of leather with 3D effect |
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| CN103603216B (en) | 2015-11-18 |
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