CN115182174A - Suede microfiber dyeing method with high color fastness and near zero emission - Google Patents
Suede microfiber dyeing method with high color fastness and near zero emission Download PDFInfo
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- CN115182174A CN115182174A CN202210891360.XA CN202210891360A CN115182174A CN 115182174 A CN115182174 A CN 115182174A CN 202210891360 A CN202210891360 A CN 202210891360A CN 115182174 A CN115182174 A CN 115182174A
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- Prior art keywords
- dyeing
- suede
- suede microfiber
- color
- microfiber
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- 238000004043 dyeing Methods 0.000 title claims abstract description 91
- 229920001410 Microfiber Polymers 0.000 title claims abstract description 61
- 239000003658 microfiber Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000004744 fabric Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000012452 mother liquor Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 239000008213 purified water Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000004902 Softening Agent Substances 0.000 claims description 3
- 229920006243 acrylic copolymer Polymers 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000001238 wet grinding Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 14
- 239000000975 dye Substances 0.000 description 7
- 239000000758 substrate Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 210000004207 dermis Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010413 mother solution Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
- D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- D06P1/525—Polymers of unsaturated carboxylic acids or functional derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coloring (AREA)
Abstract
The invention relates to the technical field of suede microfiber dyeing, and provides a suede microfiber dyeing method with high color fastness and near zero emission, which comprises the following steps: s1, selecting dyeing slurry meeting the product color requirement, adding aqueous resin and a cross-linking agent, wherein the proportion of the dyeing slurry to the aqueous resin to the cross-linking agent is respectively 2%, 5% and 10%, and the rest 83% of the dyeing slurry to the aqueous resin to the cross-linking agent is filled with diluted water/solvent, and mixing the raw materials to prepare dyeing mother liquor; and S2, selecting the dyeing primary pulp meeting the color requirement of the product. The invention only uses a small amount of water when preparing the dyeing mother liquor, does not need to enter the dye vat like the traditional process and add water with the weight of 5-10 times of the cloth as the dyeing bath for leading the dye vat to normally run, can reduce a large amount of water used in normal dyeing to almost zero, and directly dries without washing after dyeing, thereby effectively reducing the water consumption of the dyeing process, realizing the aim of zero sewage discharge and simultaneously achieving the effect of saving the process cost.
Description
Technical Field
The invention relates to the technical field of suede microfiber dyeing, in particular to a suede microfiber dyeing method with high color fastness and near zero emission.
Background
The suede microfiber is prepared by preparing a base fabric from pure microfiber, and then performing upper softening, dyeing and sanding, and has the suede vision and touch of dermis.
Neutral and weakly acidic dyes are generally used in the suede microfiber industry for normal-temperature dyeing, the dyeing mode is stable in process and mature in technology, and the process is the most common production process for dyeing suede microfiber at present.
However, in the above dyeing process, the microfiber substrate cloth needs to be put into a dye vat, and then water which is 5 to 10 times of the weight of the microfiber substrate cloth is added to be used as a dyeing bath for enabling the dye vat to normally operate, and after dyeing, the microfiber substrate cloth needs to be washed and dried again, so that the problems of large water consumption and sewage discharge amount and high process cost exist, meanwhile, the color fastness of the existing dyeing process is difficult to solve, although the dyeing process can be improved by the aid post-treatment, part of color fastness indexes still cannot meet ideal requirements, and certain influence can be caused on products and brand quality, so that a suede microfiber dyeing method with high color fastness and near zero emission is necessary to be designed for solving the problems.
Disclosure of Invention
The invention aims to provide a suede microfiber dyeing method with high color fastness and near zero emission, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a suede microfiber dyeing method with high color fastness and near zero emission comprises the following steps:
s1, selecting dyeing slurry meeting the product color requirement, adding aqueous resin and a cross-linking agent, wherein the proportion of the dyeing slurry to the aqueous resin to the cross-linking agent is respectively 2%, 5% and 10%, and the rest 83% of the dyeing slurry to the aqueous resin to the cross-linking agent is filled with diluted water/solvent, and mixing the raw materials to prepare dyeing mother liquor;
s2, selecting the dyeing raw stock meeting the product color requirement, and mixing the raw stock and the dyeing raw stock according to the ratio of 1:1, uniformly dispersing the mixture in the dyeing mother liquor to prepare a dyeing solution;
s3, completely immersing the ground suede microfiber base cloth into the dyeing solution by using a padder;
s4, after the suede microfiber base cloth is subjected to two-time soaking and two-time rolling, drying the suede microfiber base cloth by using drying equipment;
s5, checking the penetration dyeing and color accuracy of the dried suede microfiber base cloth, and performing color fixation treatment after the conditions are confirmed to meet the requirements, wherein the color fixation treatment comprises the following steps:
s5.1, mixing 30% of wet-grinding fastness improver, 30% of softening agent and 40% of purified water to prepare a proper amount of color fixing liquid;
s5.2, filtering the color fixing solution into a material tray through a 400-mesh gauze;
s5.3, placing the material tray to a fixed position, using a 100-mesh net roller, adjusting a gap between the net roller and the rubber roller to a reasonable position to enable the color fixing liquid to be immersed on the suede microfiber base cloth, and adjusting a back knife until the liquid carried by the net roller does not flow;
s5.4, rotating the suede microfiber base cloth by using an oven at the speed of 8 m/min, and adjusting the temperature of the oven to 100 ℃;
s5.5, rolling and storing the dried suede microfiber base cloth.
Preferably, the crosslinking agent used in the S1 step is composed of 36% of self-crosslinked acrylic copolymer, 2% of virgin crosslinking agent, 0.3% of penetrating agent and 61.7% of purified water, and such a design is more reasonable.
Preferably, the dyeing slurry in the step S1 is a color paste of one or more colors, and the specific number and color of the color paste are selected according to the product requirements.
Preferably, the time for immersing the suede microfiber base cloth into the dyeing solution in the step S3 is at least 5 seconds, so that the dyeing solution can be fully immersed into the suede microfiber base cloth.
Preferably, the padder pressure in the step S3 is adjusted to 1.5-2MPa, and the liquid binding rate is 40-45%, so that the suede microfiber can be effectively padded and colored.
Preferably, the drying temperature of the drying equipment used in the step S4 is 130-140 ℃ according to different product types, and the drying time is 3-5 minutes according to different product thicknesses, so that the product can be dried fully and can not be too long.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention only uses a small amount of water when preparing the dyeing mother liquor, does not need to enter the dye vat like the traditional process and add water with the weight of 5-10 times of the cloth as the dyeing bath for leading the dye vat to normally run, can reduce a large amount of water used in normal dyeing to almost zero, and directly dries without washing after dyeing, thereby effectively reducing the water consumption of the dyeing process, realizing the purpose of zero sewage discharge and simultaneously achieving the effect of saving the process cost.
2. After the rear-section color fixation treatment, all color fastness indexes can reach more than 3-4 grades, the brand quality requirements are completely met, the application range of the suede microfiber is wider, and the problem that some products cannot meet the application requirements and need to be processed again due to the color fastness problem of the suede microfiber in the traditional dyeing process is solved.
Drawings
FIG. 1 is a schematic process flow diagram of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
Referring to fig. 1, the invention provides a suede microfiber dyeing method with high color fastness and near zero emission, which comprises the following steps: the method comprises the following steps: s1, selecting dyeing slurry meeting the product color requirement, adding aqueous resin and a cross-linking agent, wherein the proportion of the dyeing slurry to the aqueous resin to the cross-linking agent is respectively 2%, 5% and 10%, and the rest 83% of the dyeing slurry to the aqueous resin to the cross-linking agent is filled with diluted water/solvent, and mixing the raw materials to prepare dyeing mother liquor; s2, selecting the dyeing primary pulp meeting the product color requirement, and mixing the raw pulp according to the proportion of 1:1, uniformly dispersing the mixture into the dyeing mother liquor to prepare a dyeing solution; s3, completely immersing the ground suede microfiber base cloth into the dyeing solution by using a padder; s4, after the suede microfiber base cloth is subjected to two-time soaking and two-time rolling, drying the suede microfiber base cloth by using drying equipment; s5, checking the penetration dyeing and color accuracy of the dried suede microfiber base cloth, and fixing the color after the condition that the dyed suede microfiber base cloth meets the requirements is confirmed, wherein the fixing treatment comprises the following steps: s5.1, mixing 30% of wet-grinding fastness improver, 30% of softening agent and 40% of purified water to prepare a proper amount of color fixing solution; s5.2, filtering the color fixing solution into a material tray through a 400-mesh gauze; s5.3, placing the material tray to a fixed position, using a 100-mesh screen roller, adjusting a gap between the screen roller and the rubber roller to a reasonable position to enable the color fixing solution to be immersed on the suede microfiber base cloth, and adjusting a back knife until the liquid carried by the screen roller does not flow; s5.4, rotating the suede microfiber base cloth by using an oven at the speed of 8 m/min, and adjusting the temperature of the oven to 100 ℃; s5.5, rolling and storing the dried suede microfiber base cloth, so that in the whole dyeing process flow, only a small amount of water is used when a dyeing mother solution is prepared, water which is 5-10 times of the weight of the cloth and enters a dye vat like the traditional process is not needed to be added to serve as a dyeing bath for enabling the dye vat to normally operate, a large amount of water used in normal dyeing can be reduced to almost zero, the dyed suede microfiber base cloth is directly dried without washing, the water consumption of the dyeing process is effectively reduced, the purpose of zero sewage discharge is achieved, the process cost is saved, meanwhile, all color fastness indexes of the dyed suede base cloth can reach more than 3-4 levels after the dyeing process is subjected to the post-stage color fixation treatment, the brand quality requirement is completely met, the application range of the suede microfiber base cloth is wider, and the problem that some products cannot meet the use requirement and need to be processed again due to the microfiber color fastness problem like the traditional dyeing process is solved.
Specifically, the crosslinking agent used in the S1 step is composed of 36% of a self-crosslinkable acrylic copolymer, 2% of a virgin crosslinking agent, 0.3% of a penetrant, and 61.7% of purified water.
Meanwhile, the dyeing slurry in the step S1 is one or more colors of raw color pastes, and the raw color pastes need to be selected according to the requirements of products.
In the actual dip dyeing operation, the time for immersing the suede microfiber base cloth into the dyeing solution in the step S3 is at least 5 seconds, so that the dyeing solution can be fully immersed into the suede microfiber base cloth, and an effective dyeing effect is achieved.
Specifically, the padder pressure in the step S3 is adjusted to 1.5-2MPa, and the liquid binding rate is 40-45%, so that the suede microfiber can be effectively padded and colored.
In some embodiments, the drying temperature of the drying device used in the step S4 is 130-140 ℃ according to different product types, and the drying time is 3-5 minutes according to different product thicknesses, so that the product can be completely dried and fixed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A suede microfiber dyeing method with high color fastness and near zero emission is characterized by comprising the following steps:
s1, selecting dyeing slurry meeting the product color requirement, adding aqueous resin and a cross-linking agent, wherein the proportion of the dyeing slurry to the aqueous resin to the cross-linking agent is respectively 2%, 5% and 10%, and the rest 83% of the dyeing slurry to the aqueous resin to the cross-linking agent is filled with diluted water/solvent, and mixing the raw materials to prepare dyeing mother liquor;
s2, selecting the dyeing raw stock meeting the product color requirement, and mixing the raw stock and the dyeing raw stock according to the ratio of 1:1, uniformly dispersing the mixture in the dyeing mother liquor to prepare a dyeing solution;
s3, completely immersing the ground suede microfiber base cloth into the dyeing solution by using a padder;
s4, after the suede microfiber base cloth is subjected to two-time soaking and two-time rolling, drying the suede microfiber base cloth by using drying equipment;
s5, checking the penetration dyeing and color accuracy of the dried suede microfiber base cloth, and performing color fixation treatment after the conditions are confirmed to meet the requirements, wherein the color fixation treatment comprises the following steps:
s5.1, mixing 30% of wet-grinding fastness improver, 30% of softening agent and 40% of purified water to prepare a proper amount of color fixing liquid;
s5.2, filtering the color fixing solution into a material tray through a 400-mesh gauze;
s5.3, placing the material tray to a fixed position, using a 100-mesh net roller, adjusting a gap between the net roller and the rubber roller to a reasonable position to enable the color fixing liquid to be immersed on the suede microfiber base cloth, and adjusting a back knife until the liquid carried by the net roller does not flow;
s5.4, rotating the suede microfiber base cloth by using an oven at the speed of 8 m/min, and adjusting the temperature of the oven to 100 ℃;
s5.5, rolling and storing the dried suede microfiber base cloth.
2. The suede microfiber dyeing method with high color fastness and near zero emission according to claim 1, wherein the suede microfiber dyeing method comprises the following steps: the crosslinking agent used in the step S1 is composed of 36% of self-crosslinked acrylic copolymer, 2% of virgin crosslinking agent, 0.3% of penetrant and 61.7% of purified water.
3. The suede microfiber dyeing method with high color fastness and near zero emission according to claim 1, wherein the suede microfiber dyeing method comprises the following steps: the dyeing slurry in the step S1 is one or more colors of raw color pastes.
4. The suede microfiber dyeing method with high color fastness and near zero emission according to claim 1, wherein the suede microfiber dyeing method comprises the following steps: and in the step S3, the time for immersing the suede microfiber base cloth into the dyeing solution is at least 5 seconds.
5. The suede microfiber dyeing method with high color fastness and near zero emission according to claim 1, wherein the suede microfiber dyeing method comprises the following steps: the padder pressure in the step S3 is adjusted to 1.5-2MPa, and the liquid pricking rate is 40-45%.
6. The suede microfiber dyeing method with high color fastness and near zero emission as claimed in claim 1, characterized in that: and S4, selecting the drying temperature of the drying equipment used in the step as 130-140 ℃ according to different product types, and drying for 3-5 minutes according to different product thicknesses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210891360.XA CN115182174A (en) | 2022-07-27 | 2022-07-27 | Suede microfiber dyeing method with high color fastness and near zero emission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210891360.XA CN115182174A (en) | 2022-07-27 | 2022-07-27 | Suede microfiber dyeing method with high color fastness and near zero emission |
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| CN115182174A true CN115182174A (en) | 2022-10-14 |
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| CN202210891360.XA Pending CN115182174A (en) | 2022-07-27 | 2022-07-27 | Suede microfiber dyeing method with high color fastness and near zero emission |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696378A (en) * | 2016-03-25 | 2016-06-22 | 广东溢达纺织有限公司 | Non-aqueous-medium dyeing and washing-free color fixation method for reactive dye |
| CN105803824A (en) * | 2016-03-08 | 2016-07-27 | 广东溢达纺织有限公司 | Non-aqueous solvent dyeing method of washing-free reactive dye |
| CN105951480A (en) * | 2016-06-22 | 2016-09-21 | 南通市联缘染业有限公司 | All cotton cheese pigment dyeing method |
| CN107338652A (en) * | 2017-06-15 | 2017-11-10 | 泉州众信超纤科技股份有限公司 | Wastewater recycling process in treasured island matte micro fiber leather dyeing and its preparation process |
| CN111764176A (en) * | 2020-06-23 | 2020-10-13 | 明新孟诺卡(江苏)新材料有限公司 | Production method of non-dyeing sea-island suede microfiber automobile interior leather |
| EP3748069A1 (en) * | 2019-06-04 | 2020-12-09 | DingZing Advanced Materials Inc. | Method for dyeing artificial fibers |
-
2022
- 2022-07-27 CN CN202210891360.XA patent/CN115182174A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803824A (en) * | 2016-03-08 | 2016-07-27 | 广东溢达纺织有限公司 | Non-aqueous solvent dyeing method of washing-free reactive dye |
| CN105696378A (en) * | 2016-03-25 | 2016-06-22 | 广东溢达纺织有限公司 | Non-aqueous-medium dyeing and washing-free color fixation method for reactive dye |
| CN105951480A (en) * | 2016-06-22 | 2016-09-21 | 南通市联缘染业有限公司 | All cotton cheese pigment dyeing method |
| CN107338652A (en) * | 2017-06-15 | 2017-11-10 | 泉州众信超纤科技股份有限公司 | Wastewater recycling process in treasured island matte micro fiber leather dyeing and its preparation process |
| EP3748069A1 (en) * | 2019-06-04 | 2020-12-09 | DingZing Advanced Materials Inc. | Method for dyeing artificial fibers |
| CN111764176A (en) * | 2020-06-23 | 2020-10-13 | 明新孟诺卡(江苏)新材料有限公司 | Production method of non-dyeing sea-island suede microfiber automobile interior leather |
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Application publication date: 20221014 |