CN117051603A - Washing-free dyeing process for sofa fabric - Google Patents
Washing-free dyeing process for sofa fabric Download PDFInfo
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- CN117051603A CN117051603A CN202311030975.4A CN202311030975A CN117051603A CN 117051603 A CN117051603 A CN 117051603A CN 202311030975 A CN202311030975 A CN 202311030975A CN 117051603 A CN117051603 A CN 117051603A
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- 238000004043 dyeing Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 68
- 239000004744 fabric Substances 0.000 title claims abstract description 67
- 230000008569 process Effects 0.000 title claims abstract description 55
- 239000000975 dye Substances 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000000986 disperse dye Substances 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000011161 development Methods 0.000 claims abstract description 11
- 238000004040 coloring Methods 0.000 claims description 15
- 239000002562 thickening agent Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000835 fiber Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract description 3
- 229920002521 macromolecule Polymers 0.000 abstract description 3
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 9
- 238000005406 washing Methods 0.000 description 9
- 239000011487 hemp Substances 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 238000005457 optimization Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 244000025254 Cannabis sativa Species 0.000 description 4
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 4
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 4
- 235000009120 camo Nutrition 0.000 description 4
- 235000005607 chanvre indien Nutrition 0.000 description 4
- 229920004933 Terylene® Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009980 pad dyeing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
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
- D06P1/16—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 dispersed, e.g. acetate, dyestuffs
-
- 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
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
-
- 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
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
- D06P3/54—Polyesters using dispersed dyestuffs
-
- 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
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8276—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing ester groups
-
- 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
- D06P5/20—Physical treatments affecting dyeing, e.g. ultrasonic or electric
- D06P5/2066—Thermic treatments of textile materials
- D06P5/2077—Thermic treatments of textile materials after dyeing
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention discloses a washing-free dyeing process for sofa fabric, and belongs to the technical field of sofa fabric dyeing. The washing-free dyeing process of the sofa fabric does not consume water resources, and greatly saves the use of water resources and chemical auxiliary agents; the liquid disperse dye is adopted, the three-dimensional size of dye particles is smaller, the dye particles have higher permeation dispersion performance in the dyeing process, can enter gaps of polyester fiber macromolecules with high efficiency, avoid accumulation on the surface of the fibers, provide feasibility for development of a water-free high-chromaticity process, and have the advantages of good dyeing effect, ecology and the like.
Description
Technical Field
The invention relates to a washing-free dyeing process for sofa fabric, and belongs to the technical field of sofa fabric dyeing.
Background
The original liquid coloring method for processing the sofa fabric has no cost performance advantage, the occupied ratio is extremely small, and the dyeing is an important way for obtaining the sofa fabric. Currently, intermittent high-temperature normal-pressure dyeing and high-temperature high-pressure dyeing processes and continuous padding, hot melt color development, padding and vapor evaporation color processes are generally adopted for dyeing the sofa fabric. However, the dyeing method needs to consume a large amount of water resources, and meanwhile, needs a plurality of groups of reduction alkaline washing and water washing procedures to remove the floating color on the surface of the blanket cloth so as to improve the dyeing fastness. The consumption of water resources is an important cost for fabric dyeing processing, and the treatment difficulty and the cost for discharging colored wastewater are high.
The liquid disperse dye is also called as 'nano disperse dye', is a new ecological dye variety developed in recent years, has three-dimensional size of dye particles of about 100nm, is far smaller than the particle size of 175 mu m of conventional powder disperse dye, has higher penetrating and dispersing performance in the dyeing process, can enter gaps of polyester fiber macromolecules with high efficiency, avoids accumulation on the surface of the fibers, provides feasibility for obtaining development of a water-free high-chromaticity process, and has the advantages of excellent color fastness, ecology and the like.
The invention patent with the Chinese application number of CN110863368B discloses a washing-free high-color fastness pad dyeing process of heavy polyester blanket cloth, which comprises the steps of ball milling powder disperse dye to obtain microcapsule-like liquid dye, and preparing dyeing color paste; padding; pre-baking; baking and developing colors to obtain the heavy and dyed polyester blanket cloth, wherein the maximum color depth value k/s of the dyed sample prepared by the method can only reach 3.8.
Disclosure of Invention
The invention aims to: the invention aims to provide a washing-free dyeing process for sofa fabric, which has the advantage of good dyeing effect and can overcome the problems of waste water, pollution and the like.
The technical scheme is as follows: the invention aims to provide a washing-free dyeing process of sofa fabric, which comprises the following method steps:
(1) Preparing dyeing color paste;
(2) Coloring the fabric by the dyeing color paste prepared in the step (1) through a dip-pressing process;
(3) Pre-baking the sofa fabric colored by the dyeing color paste in the step (2);
(4) And (3) baking and coloring the fabric subjected to the pre-baking treatment in the step (3) to obtain the fabric with better color effect.
In one embodiment, the method for preparing the dyeing paste in the step (1) comprises the following steps: in the preparation of the color paste, the concentration of the liquid dye is 6.5-7.5g/L, the concentration of the thickening agent is 0.9-1.3g/L, the concentration of the penetrating agent is 0.2-0.8 g/L, and the concentration of the adhesive is 0-1.5g/L, so that the dyeing color paste is obtained.
In one embodiment, the liquid dye is a liquid disperse dye, the three-dimensional size of dye particles is about 100nm, the three-dimensional size is far smaller than the particle size of 175 mu m of a conventional powder disperse dye, and the liquid dye has higher penetrability and dispersibility in the dyeing process.
In one embodiment, the liquid dye may be a microcapsule-like liquid dye obtained using CN 110863368B.
In one embodiment, the thickener is TF-392B; the formaldehyde-free binder was DM-5128 and the nonionic penetrant was DM-1230.
In one embodiment, the sofa fabric in the step (2) may be polyester or cotton.
In one embodiment, the dip pressing process in the step (2) is a two-dip two-roll process, the pressure of the press roll is 0.4-0.6MPa, and the liquid carrying rate of the fabric is 50-70%.
In one embodiment, the pre-bake treatment temperature is 80-100deg.C for 4-5min.
In one embodiment, the baking and coloring temperature is selected to be 150-200 ℃ for coloring and the drying time is 80-210 s.
The invention has the advantages and effects that:
the washing-free dyeing process of the sofa fabric does not consume water resources, and greatly saves the use of water resources and chemical auxiliary agents;
the invention adopts the liquid disperse dye, has smaller three-dimensional size of dye particles, has higher penetrability and dispersibility in the dyeing process, can enter gaps of polyester fiber macromolecules with high efficiency, avoids accumulation on the surface of the fibers, and provides feasibility for developing a water-free high-chromaticity process.
The dyeing process obtained by screening and optimizing the components and the raw materials of the dyeing dye can be applied to terylene and cotton and hemp, the color depth value k/s of the prepared terylene fabric can reach more than 6.2, the color depth value k/s of the prepared cotton and hemp fabric can reach more than 21.7, and the dry and wet rubbing fastness and the washing fastness grade can reach 4-5 and more.
Detailed Description
The measuring method comprises the following steps:
(1) Representing depth of color values k/s
Spectral colorimetry: spectrocolorimetry is a method of determining color by measuring reflection or transmission of light. In the dyeing process, a spectrocolorimeter may be used to measure the reflectance spectrum of a dyed sample and obtain information therefrom regarding the shade of color. These measurements can be translated into different color spaces (e.g., RGB, lab, CMYK, etc.) to provide quantitative data regarding the value of the apparent color depth.
(2) Color fastness testing:
dry and wet rubbing fastness and washing fastness of dyeing samples are tested by referring to the standards GB/T3920-2008 "rubbing fastness for textile color fastness test" and GB/T3921-2008 "washing fastness for textile color fastness test", and rating is completed.
(3) Color index test:
adopts a Datacolor 650 type computer color measuring and matching instrument in D 65 Testing K/S, L, a, b values of different dyed samples at a light source and a 10-degree viewing angle; each cloth sample color index was measured 5 times and averaged.
Example 1: washing-free dyeing process of sofa fabric
(1) Preparing dyeing color paste;
(2) Coloring the fabric by the dyeing color paste prepared in the step (1) through a dip-pressing process;
(3) Pre-baking the sofa fabric (cotton-hemp, wherein 35% of cotton and 65% of hemp) colored by the dyeing color paste in the step (2);
(4) And (3) baking and coloring the fabric subjected to the pre-baking treatment in the step (3) to obtain the fabric with better color effect.
The preparation method of the dyeing color paste in the step (1) comprises the following steps: in the preparation of the color paste, the concentration of the liquid dye is 6.5g/L, the concentration of the thickening agent is 1.1g/L, the concentration of the penetrating agent is 0.4g/L, and the concentration of the adhesive is 0.5g/L, so that the dyeing color paste is obtained.
The disperse dye is liquid disperse dye, the three-dimensional size of dye particles is about 100nm and is far smaller than the particle size of 175 mu m of conventional powder disperse dye, and the dye has higher penetrability and dispersibility in the dyeing process.
The thickener is TF-392B; the formaldehyde-free binder was DM-5128 and the nonionic penetrant was DM-1230.
The dip pressing process in the step (2) is a two-dip two-roll process, the pressure of a press roll is 0.4MPa, and the liquid carrying rate of the fabric is 50%.
The pre-baking treatment temperature is 100 ℃ and the time is 4min.
The baking color development temperature is selected to develop color at 150 ℃, and the drying time is respectively 80s.
After the color depth value k/s of the prepared dyed fabric is tested, the color fastness is tested, and the color depth value k/s of the dyed fabric is 24.5, and the dry and wet rubbing fastness and the washing fastness are respectively 4-5, 5 and 5.
Example 2: washing-free dyeing process of sofa fabric
(1) Preparing dyeing color paste;
(2) Coloring the fabric by the dyeing color paste prepared in the step (1) through a dip-pressing process;
(3) Pre-baking the sofa fabric (cotton-hemp, 45% cotton and 55% hemp) colored by the dyeing color paste in the step (2);
(4) And (3) baking and coloring the fabric subjected to the pre-baking treatment in the step (3) to obtain the fabric with better color effect.
The preparation method of the dyeing color paste in the step (1) comprises the following steps: in the preparation of the color paste, the concentration of the liquid dye is 7.0g/L, the concentration of the thickening agent is 1.2g/L, the concentration of the penetrating agent is 0.6g/L, and the concentration of the adhesive is 1.0g/L, so that the dyeing color paste is obtained.
The disperse dye is liquid disperse dye, the three-dimensional size of dye particles is about 100nm and is far smaller than the particle size of 175 mu m of conventional powder disperse dye, and the dye has higher penetrability and dispersibility in the dyeing process.
The thickener is TF-392B; the formaldehyde-free binder was DM-5128 and the nonionic penetrant was DM-1230.
The dip pressing process in the step (2) is a two-dip two-roll process, the pressure of a press roll is 0.5MPa, and the liquid carrying rate of the fabric is 60%.
The pre-baking treatment temperature is 90 ℃ and the time is 4min.
The baking color development temperature is selected to develop color at 170 ℃, and the drying time is 150s respectively.
After the color depth value k/s of the prepared dyed fabric is tested, the color fastness is tested, and the color depth value k/s of the dyed fabric is 23.6, and the dry and wet rubbing fastness and the washing fastness are respectively 4-5, 4-5 and 5.
Example 3: washing-free dyeing process of sofa fabric
(1) Preparing dyeing color paste;
(2) Coloring the fabric by the dyeing color paste prepared in the step (1) through a dip-pressing process;
(3) Pre-baking the sofa fabric (polyester) colored by the dyeing color paste in the step (2);
(4) And (3) baking and coloring the fabric subjected to the pre-baking treatment in the step (3) to obtain the fabric with better color effect.
The preparation method of the dyeing color paste in the step (1) comprises the following steps: in the preparation of the color paste, the concentration of the liquid dye is 7.5g/L, the concentration of the thickening agent is 1.3g/L, the concentration of the penetrating agent is 0.8g/L, and the concentration of the adhesive is 1.5g/L, so that the dyeing color paste is obtained.
The disperse dye is liquid disperse dye, the three-dimensional size of dye particles is about 100nm and is far smaller than the particle size of 175 mu m of conventional powder disperse dye, and the dye has higher penetrability and dispersibility in the dyeing process.
The thickener is TF-392B; the formaldehyde-free binder was DM-5128 and the nonionic penetrant was DM-1230.
The dip pressing process in the step (2) is a two-dip two-roll process, the pressure of a press roll is 0.6MPa, and the liquid carrying rate of the fabric is 70%.
The pre-baking treatment temperature is 80 ℃ and the time is 5min.
The baking color development temperature is selected to develop color at 200 ℃, and the drying time is 210s respectively.
After the color depth value k/s of the prepared dyed fabric is tested, the color fastness is tested, and the color depth value k/s of the dyed fabric is 6.2, and the dry and wet rubbing fastness and the washing fastness are respectively 4-5, 5 and 5.
Example 4: washing-free dyeing process of sofa fabric
(1) Preparing dyeing color paste;
(2) Coloring the fabric by the dyeing color paste prepared in the step (1) through a dip-pressing process;
(3) Pre-baking the sofa fabric (polyester) colored by the dyeing color paste in the step (2);
(4) And (3) baking and coloring the fabric subjected to the pre-baking treatment in the step (3) to obtain the fabric with better color effect.
The preparation method of the dyeing color paste in the step (1) comprises the following steps: in the preparation of the color paste, the concentration of the liquid dye is 6.5g/L, the concentration of the thickening agent is 0.9g/L, the concentration of the penetrating agent is 0.6g/L, and the concentration of the adhesive is 1.5g/L, so that the dyeing color paste is obtained.
The disperse dye is liquid disperse dye, the three-dimensional size of dye particles is about 100nm and is far smaller than the particle size of 175 mu m of conventional powder disperse dye, and the dye has higher penetrability and dispersibility in the dyeing process.
The thickener is TF-392B; the formaldehyde-free binder was DM-5128 and the nonionic penetrant was DM-1230.
The dip pressing process in the step (2) is a two-dip two-roll process, the pressure of a press roll is 0.6MPa, and the liquid carrying rate of the fabric is 60%.
The pre-baking treatment temperature is 80 ℃ and the time is 5min.
The baking color development temperature is selected to develop color at 185 ℃, and the drying time is 150s respectively.
After the color depth value k/s of the prepared dyed fabric is tested, the color fastness is tested, and the color depth value k/s of the dyed fabric is 6.7, and the dry and wet rubbing fastness and the washing fastness are respectively 4-5, 5 and 4-5.
Comparative example 1: washing-free dyeing process of sofa fabric
Except that the components of the dyeing color paste in the step (1) are liquid dye with the concentration of 5g/L, thickener with the concentration of 0.8g/L, penetrating agent with the concentration of 0.1g/L and adhesive with the concentration of 0.6g/L, the dyeing color paste is obtained, other experimental steps are consistent with those of the embodiment 3, and the obtained dyed fabric is tested by the color depth representation value k/s, so that the color depth representation value k/s is 2.1.
Optimization example 1: influence of the liquid dye concentration on the dyeing effect
The procedure was as in example 1 except for changing the dye concentration.
As a result, as shown in Table 1, the color depth of expression was 21.7 or more at a liquid dye concentration of 6.5 to 7.5g/L, and 24.6 or more at a liquid dye concentration of 7.0 g/L.
TABLE 1
Optimization example 2: effect of thickener usage on dyeing Effect
The procedure was as in example 1 except for changing the dye concentration.
As shown in Table 2, the color depth of the color can be 21.9 or more when the thickener is used in an amount of 0.9 to 1.3g/L, and 23.8 when the penetrant is used in an amount of 1.1 g/L.
TABLE 2
Optimization example 3: influence of the amount of penetrant on the dyeing effect
The procedure was as in example 1 except for changing the dye concentration.
As shown in Table 3, the color depth of the color was 19 or more when the amount of the penetrating agent was 0.2 to 0.8g/L, and 24 when the amount of the penetrating agent was 0.6 g/L.
TABLE 3 Table 3
Optimization example 4: influence of the color development temperature on the color index and the color fastness
The procedure was as in example 1, except for changing the color development temperature.
As shown in Table 4, the color fastness and the color index were good at the color development temperature of 150 to 200 ℃.
TABLE 4 Table 4
Optimization example 4: influence of drying time on color index and color fastness
The procedure was as in example 1 except for changing the drying time.
As shown in Table 5, the results show that the color fastness and the color index are good when the drying time is 80s-210s.
TABLE 5
While the invention has been described with reference to the preferred embodiments, it is not limited thereto, and various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The washing-free dyeing process of the sofa fabric is characterized by comprising the following steps of:
(1) Preparing dyeing color paste:
the dyeing color paste comprises liquid dye with the concentration of 6.5-7.5g/L, thickener with the concentration of 0.9-1.3g/L, penetrating agent with the concentration of 0.2-0.8 g/L and adhesive with the concentration of 0-1.5g/L;
(2) Coloring the fabric by the dyeing color paste prepared in the step (1) through a dip-pressing process;
(3) Pre-baking the sofa fabric colored by the dyeing color paste in the step (2);
(4) And (3) baking and coloring the fabric subjected to the pre-baking treatment in the step (3) to obtain the fabric with better color effect.
2. Dyeing process according to claim 1, characterized in that in step (3), the pre-drying treatment temperature is 80-100 ℃ for 4-5min.
3. The dyeing process according to claim 1, wherein in the step (4), the baking color development temperature is selected to develop color at 150-200 ℃ and the baking time is 80-210 s.
4. The dyeing process according to claim 1, wherein in the step (1), the liquid dye is a liquid disperse dye, the three-dimensional size of dye particles is about 100nm, which is much smaller than the particle size of 175 μm of conventional powder disperse dye, and the dye has higher penetrability and dispersibility in the dyeing process.
5. The dyeing process according to claim 1, wherein in the step (2), the dip-pressing process is a two-dip two-roll process, the pressure of the press roll is 0.4 to 0.6MPa, and the liquid carrying rate of the fabric is 50 to 70%.
6. Dyeing process according to claim 1, characterized in that in step (1), the thickener is TF-392B; the formaldehyde-free binder was DM-5128 and the nonionic penetrant was DM-1230.
7. A wash-free dyed sofa fabric prepared according to the dyeing process of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311030975.4A CN117051603A (en) | 2023-08-16 | 2023-08-16 | Washing-free dyeing process for sofa fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311030975.4A CN117051603A (en) | 2023-08-16 | 2023-08-16 | Washing-free dyeing process for sofa fabric |
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| Publication Number | Publication Date |
|---|---|
| CN117051603A true CN117051603A (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311030975.4A Pending CN117051603A (en) | 2023-08-16 | 2023-08-16 | Washing-free dyeing process for sofa fabric |
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| Country | Link |
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| CN (1) | CN117051603A (en) |
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2023
- 2023-08-16 CN CN202311030975.4A patent/CN117051603A/en active Pending
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