CN104195272B - A kind of sour skin dry-cleaning technique of sheep's wool leather - Google Patents
A kind of sour skin dry-cleaning technique of sheep's wool leather Download PDFInfo
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- CN104195272B CN104195272B CN201410362865.2A CN201410362865A CN104195272B CN 104195272 B CN104195272 B CN 104195272B CN 201410362865 A CN201410362865 A CN 201410362865A CN 104195272 B CN104195272 B CN 104195272B
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Abstract
The invention discloses a kind of sour skin dry-cleaning technique of sheep's wool leather, comprise the steps: rewetting → drying → cropping → main immersion → fleshing → pretreatment → pickling → dry → sour skin moisture regain → pulling scraper → dry-cleaning → sour leather wetting → softening → pickling → tanning → wet-milling → neutralization → stuffing → dry finishing → retanning for the first time → dyeing → dry finishing → finished product for the second time, in described pre-treatment step, the component of the pretreatment fluid adopting is: synthetic fat liquor ST1.0-3.0g/l, sulfiting fatting agent EBC1.0-3.0g/l, mix fatting agent GF1.0-3.0g/l, surplus is water. the present invention not only can ensure to reduce to greatest extent to degreasing agent, water and grease use amount, can also reclaim natural oil, thereby greatly reduce the pollution to environment, effectively reduce the discharge of waste water, save enterprise's pollution treatment and production cost, and the hair leather of producing can not produce because degreasing does not cause and the phenomenons such as oil mark, chromium soap only.
Description
Technical field
The present invention relates to hair leather processing technology, the sour skin that is specifically related to a kind of sheep's wool leather is dryWash technique.
Background technology
That can make hair leather products material skin mainly contains three kinds, abortive calfskin, goat skin andSheepskin, with the skin-deep ratio of other two kinds of raw materials, the fat content of sheepskin is very high, andIn hair leather process, can not implement liming operation, therefore the degreasing of hair leather becomes more tiredDifficult. The existence meeting of natural oil forms chromium soap in the tanning stage, affects follow-up dyeing effectReally. Conventional operation is now that the each step before tanning adds degreasing agent substantiallyDegreasing before tanning, the consumption of degreasing agent is very large. After tanning, also need in the skin base stageTo further remove the natural oil in sheepskin by dry-cleaning. The effect of dry-cleaning degreasingVery good, not only can remove the last stage of tanning and not remove clean natural oil, andAnd also can remove the commercial grease adding after a part, too dry for not making to dry-clean rear hideDry, must in the stuffing step before dry-cleaning, add to be used for being removed by dry cleaning agent into some greasesGo. Before tanning, a large amount of uses of degreasing agent can increase a large amount of costs undoubtedly, thereby present stageSuch necessity operation is also caving-in bash. If can remove by dry-cleaning in the last stage of tanningNatural oil, can reduce production costs certainly greatly. But the raw hide stage before tanning entersRow dry-cleaning, dry cleaning agent can make hair root loosening, causes irreversible impact. ThisInvention is intended to develop a kind of technology that can dry-clean under sour skin state, can be to hair rootImpact, there will not be to fall the phenomenon such as hair, knot hair, thereby reduce production costs.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide oneThe sour skin dry-cleaning technique of sheep's wool leather is used a large amount of degreasing agents, skin before solving existing tanningThe base stage also needs the problems such as dry-cleaning. This technique not only can realize the degreasing of the last stage of tanningAgent use amount and greatly reduce discharge of wastewater and production cost, and the Mao Gemao producingVarious aspects of performance is good, there is no impact to dying hair and dying plate.
To achieve these goals, the technical solution used in the present invention is:
A sour skin dry-cleaning technique for sheep's wool leather, its technique comprises: rewetting → drying →Cropping → main immersion → fleshing → pretreatment → pickling → dry → sour skin moisture regain → pulling scraper →Dry-cleaning → sour leather wetting → softening → pickling → tanning → wet-milling → neutralization → stuffing → the firstInferior dry finishing → retanning → dyeing → dry finishing → finished product for the second time.
Concrete technology step is:
Step 1, rewetting;
Step 2, dries;
Step 3, cropping;
Step 4, main immersion;
Step 5, fleshing;
Step 6, pretreatment: the consisting of of pretreatment fluid: synthetic fat liquor ST (UnitedChemicals) 1.0-3.0g/l, sulfiting fatting agent EBC (CLP-COLORANTES)1.0-3.0g/l, mixes fatting agent GF (the auspicious leather technology of moral) 1.0-3.0g/l, and all the other are water.Pretreatment fluid consumption is that 20-40 adds according to the mass ratio of water in pretreatment fluid and fur. In temperatureAt spending 30-40 DEG C, the time is 30-90min, then adds fatty aldehyde PF (German Si Mahuaxue)1.0-3.0g/l or polyacetals A-55 (UnitedChemicals) 1.0-3.0g/l, the time is 1-3h,Hold over night afterwards;
Step 7, pickling;
Step 8, dries;
Step 9, moisture regain: moisture regain the consisting of of liquid: the industrial salt 50-80g/L that bleachinges and dyeing,All the other are water;
Step 10, dry-cleaning;
Step 11, sour leather wetting: the consisting of of rewetting liquid: salt 50-80g/L, fatAldehyde PF (German Si Mahuaxue) 1.0-3.0g/l or polyacetals A-55 (UnitedChemicals)1.0-3.0g/l, at temperature 30-40 DEG C, intermittent rotary 90-180min;
Step 12, softening;
Step 13, pickling;
Step 14, tanning;
Step 15, wet-milling;
Step 10 six, neutralization;
Step 10 seven, stuffing;
Step 10 eight, for the first time dry finishing;
Step 10 nine, retanning;
Step 2 ten, dyeing;
Step 2 11, for the second time dry finishing;
Step 2 12, finished product.
In described step 9, the 5%-20% that moisture regain liquid consumption dries rear weight according to sour skin is equalThe even hide surface that is sprayed at.
In described step 10, dry-cleaning rotation time, not higher than 5min, is dry-cleaned post-drying temperatureNot higher than 50 DEG C.
In described step 10 eight and step 2 11, for the first time described and dry finishing for the second timeIn step, all do not need to dry-clean again operation.
Compared with prior art, the present invention has the following advantages:
Adopt sour skin dry-cleaning and supporting technique to carry out the processing of sheep's wool leather, do not needAdditionally add again degreasing agent, there is no degreasing process, can save wastewater discharge, subtract simultaneouslyThe use amount of few follow-up fatting agent, has actual production meaning. This technology not only can be fallenLow entreprise cost, and the sheep's wool of producing leather hair color is pure white, without withered hair phenomenon, remove from officeBody is bright-colored, remove from office basic indistinction, physical and mechanical properties with the normal sheep's wool of producingReach the hair leather that normal process obtains completely, there is no impact to dying hair and dying plate.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further details.
In the present invention, sour skin dry-cleaning sheepskin is produced clothes hair leather production technology, comprises successivelyFollowing steps: rewetting → drying → cropping → main immersion → fleshing → pretreatment → pickling → dry in the airDry → sour skin moisture regain → pulling scraper → dry-cleaning → sour leather wetting → softening → pickling → tanning → wetMill → neutralization → stuffing → dry finishing → retanning for the first time → dyeing → dry finishing for the second time →Finished product. Whole technique except the master operations such as pretreatment, the moisture regain of sour skin, sour leather wetting itOutward, the same common process of other technique. Below by concrete embodiment, the present invention is doneIntroduce in detail explanation.
Embodiment 1
A sour skin dry-cleaning technique for sheep's wool leather, comprises the following steps:
Step 1, rewetting: same to common process;
Step 2, dries;
Step 3, cropping;
Step 4, main immersion: same to common process;
Step 5, fleshing;
Step 6, pretreatment: the consisting of of pretreatment fluid: synthetic fat liquor ST (UnitedChemicals) 1.5g/l, sulfiting fatting agent EBC (CLP-COLORANTES) 1.7g/l,Mix fatting agent GF (the auspicious leather technology of moral) 2.3g/l, all the other are water. Pretreatment fluid consumption is pressedBe 25 interpolations according to the mass ratio of water in pretreatment fluid and fur. At 35 DEG C of temperature, the time is60min, then adds fatty aldehyde PF (German Si Mahuaxue) 1.5g/l, and the time is 2h, itRear hold over night;
Step 7, pickling: same to common process;
Step 8, dries;
Step 9, moisture regain: moisture regain the consisting of of liquid: the industrial salt 75g/L that bleachinges and dyeing, all the otherFor water;
Step 10, dry-cleaning: add dry cleaning agent dry-cleaning rotation time 3min, dry-cleaning post-drying temperatureSpend 45 DEG C;
Step 11, sour leather wetting: the consisting of of rewetting liquid: salt 75g/L, polyacetals A-55(UnitedChemicals) 3.0g/l, at 37 DEG C of temperature, intermittent rotary 100min;
Step 12, softening: same to common process;
Step 13, pickling: same to common process;
Step 14, tanning: same to common process;
Step 15, wet-milling;
Step 10 six, neutralization: same to common process;
Step 10 seven, stuffing: same to common process;
Step 10 eight, for the first time dry finishing;
Step 10 nine, retanning: same to common process;
Step 2 ten, dyeing: same to common process;
Step 2 11, for the second time dry finishing;
Step 2 12, finished product.
Embodiment 2
A sour skin dry-cleaning technique for sheep's wool leather, comprises the following steps:
Step 1, rewetting: same to common process;
Step 2, dries;
Step 3, cropping;
Step 4, main immersion: same to common process;
Step 5, fleshing;
Step 6, pretreatment: the consisting of of pretreatment fluid: synthetic fat liquor ST (UnitedChemicals) 3.0g/l, sulfiting fatting agent EBC (CLP-COLORANTES) 2.0g/l,Mix fatting agent GF (the auspicious leather technology of moral) 1.5g/l, all the other are water. Pretreatment fluid consumption is pressedBe 35 interpolations according to the mass ratio of water in pretreatment fluid and fur. At 36 DEG C of temperature, the time is55min, then adds polyacetals A-55 (UnitedChemicals) 2.5g/l, and the time is 2h,Hold over night afterwards;
Step 7, pickling: same to common process;
Step 8, dries;
Step 9, moisture regain: moisture regain the consisting of of liquid: the industrial salt 60g/L that bleachinges and dyeing, itsYu Weishui;
Step 10, dry-cleaning: add dry cleaning agent dry-cleaning rotation time 3.5min, dry-cleaning post-drying temperatureSpend 48 DEG C;
Step 11, sour leather wetting: the consisting of of rewetting liquid: salt 55g/L, fatty aldehydePF (German Si Mahuaxue) 3.0g/l, at 39 DEG C of temperature, intermittent rotary 120min;
Step 12, softening: same to common process;
Step 13, pickling: same to common process;
Step 14, tanning: same to common process;
Step 15, wet-milling;
Step 10 six, neutralization: same to common process;
Step 10 seven, stuffing: same to common process;
Step 10 eight, for the first time dry finishing;
Step 10 nine, retanning: same to common process;
Step 2 ten, dyeing: same to common process;
Step 2 11, for the second time dry finishing;
Step 2 12, finished product.
Embodiment 3
A sour skin dry-cleaning technique for sheep's wool leather, comprises the following steps:
Step 1, rewetting: same to common process;
Step 2, dries;
Step 3, cropping;
Step 4, main immersion: same to common process;
Step 5, fleshing;
Step 6, pretreatment: the consisting of of pretreatment fluid: synthetic fat liquor ST (UnitedChemicals) 2.5g/l, sulfiting fatting agent EBC (CLP-COLORANTES) 2.5g/l,Mix fatting agent GF (the auspicious leather technology of moral) 1.5g/l, all the other are water. Pretreatment fluid consumption is pressedBe 40 interpolations according to the mass ratio of water in pretreatment fluid and fur. At 40 DEG C of temperature, the time is90min, then adds fatty aldehyde PF (German Si Mahuaxue) 2.5g/l, and the time is 1h, itRear hold over night;
Step 7, pickling: same to common process;
Step 8, dries;
Step 9, moisture regain: moisture regain the consisting of of liquid: the industrial salt 75g/L that bleachinges and dyeing, itsYu Weishui;
Step 10, dry-cleaning: add dry cleaning agent dry-cleaning rotation time 3min, dry-cleaning post-drying temperatureSpend 44 DEG C;
Step 11, sour leather wetting: the consisting of of rewetting liquid: salt 70g/L, fatty aldehydePF (German Si Mahuaxue) 2.5g/l, at 40 DEG C of temperature, intermittent rotary 180min;
Step 12, softening: same to common process;
Step 13, pickling: same to common process;
Step 14, tanning: same to common process;
Step 15, wet-milling;
Step 10 six, neutralization: same to common process;
Step 10 seven, stuffing: same to common process;
Step 10 eight, for the first time dry finishing;
Step 10 nine, retanning: same to common process;
Step 2 ten, dyeing: same to common process;
Step 2 11, for the second time dry finishing;
Step 2 12, finished product.
Claims (5)
1. the sour skin dry-cleaning technique of a sheep's wool leather, it is characterized in that, comprise the following steps: rewetting → drying → cropping → main immersion → fleshing → pretreatment → pickling → dry → sour skin moisture regain → pulling scraper → dry-cleaning → sour leather wetting → softening → pickling → tanning → wet-milling → neutralization → stuffing → dry finishing → retanning for the first time → dyeing → dry finishing → finished product for the second time; In described pre-treatment step, the component of the pretreatment fluid adopting is: synthetic fat liquor ST1.0-3.0g/l, sulfiting fatting agent EBC1.0-3.0g/l, mixes fatting agent GF1.0-3.0g/l, and surplus is water, pretreatment fluid consumption is that 20-40 adds according to the mass ratio of water in pretreatment fluid and fur, at the temperature 30-40 of described pre-treatment step DEG C, the time is 30-90min, then adds fatty aldehyde PF1.0-3.0g/l or polyacetals A-551.0-3.0g/l, time is 1-3h, afterwards hold over night.
2. the sour skin dry-cleaning technique of sheep's wool leather according to claim 1, it is characterized in that, in described moisture regain step, the consisting of of described moisture regain liquid: the industrial salt 50-80g/L that bleachinges and dyeing, all the other are water, and the 5%-20% that moisture regain liquid consumption dries rear weight according to sour skin is evenly sprayed at hide surface.
3. the sour skin dry-cleaning technique of sheep's wool leather according to claim 1, is characterized in that, in described dry-cleaning step, described dry-cleaning rotation time is not higher than 5min, and dry-cleaning post-drying temperature is not higher than 50 DEG C.
4. the sour skin dry-cleaning technique of sheep's wool leather according to claim 1, it is characterized in that, in described sour leather wetting step, consisting of of described rewetting liquid: salt 50-80g/L, fatty aldehyde PF1.0-3.0g/l or polyacetals A-551.0-3.0g/l, at temperature 30-40 DEG C, intermittent rotary 90-180min.
5. the sour skin dry-cleaning technique of sheep's wool according to claim 1 leather, is characterized in that, in for the first time described and dry finishing step for the second time, does not all need to dry-clean operation again.
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| CN106167841B (en) * | 2016-08-30 | 2019-08-02 | 焦作隆丰皮草企业有限公司 | A kind for the treatment of process of woolfell |
| CN106521048B (en) * | 2016-10-27 | 2018-08-10 | 宁夏成丰农业科技开发股份有限公司 | The fur leather integrated dyeing of lamb |
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| CN102586505A (en) * | 2012-01-13 | 2012-07-18 | 浙江中辉皮草有限公司 | Circularly-tanning technology for chrome tanning liquor of sheep garment leather |
| CN102758029A (en) * | 2012-07-09 | 2012-10-31 | 陕西科技大学 | Method for chrome-free tanning beach woolfell by adopting chrome-free tanning agent |
| CN103695575A (en) * | 2013-12-25 | 2014-04-02 | 宁夏吴忠市精艺裘皮制品有限公司 | Process for tanning goat leather by synthetic tanning agent |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013127455A1 (en) * | 2012-02-29 | 2013-09-06 | Pelle Magna International Limited | Coating composition for stingray leather, tanning and finishing processes and finished stingray leather |
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| CN102586505A (en) * | 2012-01-13 | 2012-07-18 | 浙江中辉皮草有限公司 | Circularly-tanning technology for chrome tanning liquor of sheep garment leather |
| CN102758029A (en) * | 2012-07-09 | 2012-10-31 | 陕西科技大学 | Method for chrome-free tanning beach woolfell by adopting chrome-free tanning agent |
| CN103695575A (en) * | 2013-12-25 | 2014-04-02 | 宁夏吴忠市精艺裘皮制品有限公司 | Process for tanning goat leather by synthetic tanning agent |
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Effective date of registration: 20180906 Address after: 314512 lambs Industrial Park, Shimen Town, Tongxiang City, Jiaxing, Zhejiang Patentee after: Zhejiang Zhonghui fur Technology Co., Ltd. Address before: 314511 Jiaxing City, Zhejiang Province, the South Gate of the Chong Fu town, Tongxiang City Patentee before: Zhejiang Zhonghui Fur & Leather Co., Ltd. |