Three-step dyeing process of multi-fiber blended lace fabric

Abstract

The invention is applicable to the technical field of multi-fiber blended lace cloth dyeing, and provides a three-step dyeing process of multi-fiber blended lace cloth, which comprises the following steps: S1, pretreatment: loosening cloth strips, sewing cloth leftovers, tying the cloth leftovers, preparing cloth, and then immersing the cloth into an oil removal solution for oil removal; s2, performing blank fixing and shaping: performing blank fixing and shaping treatment on the cloth by a heat shaping method; s3, dyeing: carrying out polyester dyeing on the cloth subjected to the blank setting and shaping treatment, and cleaning; dyeing cotton, and soaping; finally dyeing chinlon, and carrying out color fixation treatment; s4, dehydration: carrying out dehydration treatment on the cloth subjected to color fixation treatment, pulling the cloth open, and gradually spreading the cloth; s5, scutching is carried out; and S6, finished product shaping. The prepared multi-fiber blended lace cloth is bright and uniform in color and luster and high in color fastness, and the dyeing problem caused by multiple fiber varieties and large dyeing performance difference in a traditional dyeing process is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of dyeing of multi-fiber blended lace fabrics, and specifically to a three-step dyeing process for multi-fiber blended lace fabrics. Background Art

[0002] Multi-fiber blended lace fabric is a fabric made by blending multiple fiber materials (such as polyester fiber, nylon, cotton, silk, etc.), and is usually used for making clothing, underwear, household ornaments, etc. Its unique lace design makes it very popular in the market, especially suitable for showing delicate and exquisite craftsmanship. This fabric combines different types of fibers and can combine the advantages of natural and synthetic fibers, such as strength, comfort, durability, etc.

[0003] The dyeing process of multi-fiber blended lace fabric is a key step, which not only affects the appearance of the fabric, but also directly relates to the durability and use effect of the fabric. Since this fabric is usually composed of multiple different fiber materials (such as polyester, nylon, cotton, etc.), the dyeing is difficult. The dyeing process of multi-fiber blended lace fabric usually requires the use of dyes suitable for multiple fibers and ensures that the dyes can uniformly penetrate into each fiber. The temperature, time, dye type and dyeing process during dyeing need to be strictly controlled to avoid damage to the fabric.

[0004] Traditional dyeing processes often have difficulty in uniformly penetrating the color into various fibers, resulting in problems such as uneven dyeing and large color differences. In addition, most traditional dyeing processes are one-step dyeing methods, that is, all dyes are added to the dyeing solution at one time, and then the fabric is soaked in the dyeing solution for a certain period of time. Although this method is simple to operate, it is often difficult to ensure that all fibers can uniformly absorb the dyes, especially for multi-fiber blended lace fabrics, the dyeing effect is even more unsatisfactory.

[0005] To solve the above problems, the present invention proposes a three-step dyeing process for multi-fiber blended lace fabrics. Summary of the Invention

[0006] The purpose of the present invention is to provide a three-step dyeing process for multi-fiber blended lace fabrics to solve the problem that in the prior art, traditional dyeing processes for multi-fiber blended lace fabrics often have difficulty in uniformly penetrating the color into various fibers, resulting in uneven dyeing and large color differences.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A three-step dyeing process for multi-fiber blended lace fabrics, including the following steps:

[0008] S1, Pretreatment:

[0009] Loosen the cloth strips, sew between the cloth ends, tie the cloth ends well to make a piece of cloth, and then immerse the cloth in a degreasing solution for degreasing;

[0010] S2, embryo setting and shaping:

[0011] Perform embryo setting and shaping treatment on the cloth by heat setting method;

[0012] S3, dyeing:

[0013] First, dye the cloth after embryo setting and shaping with polyester, and then wash it; then dye it with cotton and wash it thoroughly with soap; finally, dye it with nylon and perform color fixation treatment;

[0014] S4, dehydration:

[0015] Perform dehydration treatment on the cloth after color fixation treatment, pull the cloth apart to gradually spread the cloth out flat;

[0016] S5, opening width:

[0017] Put the dehydrated cloth into an opening width machine;

[0018] S6, finished product shaping:

[0019] Shape the cloth by heat setting.

[0020] Preferably, the degreasing solution is a lipase solution, and the concentration of the lipase solution is 0.1% - 2% (w / w).

[0021] Preferably, the pH value of the degreasing solution is 7 - 9, and the use temperature of the degreasing solution is 40 - 60 °C.

[0022] Preferably, the temperature of the embryo setting and shaping is 150 - 200 °C.

[0023] Preferably, the dehydration method is one of centrifugal dehydration, pressing dehydration or drum dehydration.

[0024] Preferably, the steps of the color fixation treatment are as follows:

[0025] Immerse the cloth in a citric acid solution and soak it at a temperature of 50 - 60 °C for 10 - 30 min.

[0026] Preferably, the concentration of the citric acid solution is 1 - 3% (w / w).

[0027] Preferably, the pressure of the opening width machine is set to 3 - 6 kg, and the speed is set to 5 - 10 m / min.

[0028] Preferably, the temperature of the heat setting is 150 °C - 180 °C, and the time of the heat setting is 25 - 50 s.

[0029] Preferably, the cloth material is nylon + polyester + cotton or nylon + modified polyester + cotton + spandex, and the dyeing durations of polyester, cotton, and nylon are 35 - 75 min, 30 - 60 min, and 40 - 65 min respectively.

[0030] The present invention has at least the following beneficial effects:

[0031] (1) The three-step dyeing process of the multi-fiber blended lace fabric provided by the present invention results in a multi-fiber blended lace fabric with bright, uniform color and high color fastness, effectively solving the dyeing problems caused by the large number of fiber types and significant differences in dyeing properties in traditional dyeing processes.

[0032] (2) The three-step dyeing process of the multi-fiber blended lace fabric provided by the present invention is simple and easy to control in operation, suitable for large-scale industrial production, and has broad application prospects.

[0033] (2) The three-step dyeing process of the multi-fiber blended lace fabric provided by the present invention adopts a step-by-step dyeing method. First, polyester is dyed, then cotton is dyed, and finally nylon is dyed. By this step-by-step dyeing method, it is ensured that the dye can uniformly penetrate into various fibers, avoiding problems such as uneven dyeing and large color differences. Detailed implementation manners

[0034] The technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0035] The present invention provides a three-step dyeing process for a multi-fiber blended lace fabric, including the following steps:

[0036] S1, pretreatment:

[0037] Loosen the cloth strips, sew the cloth heads together, tie the cloth heads well to make a cloth, and then immerse the cloth in a degreasing solution for degreasing.

[0038] S2, embryo setting:

[0039] Perform embryo setting treatment on the cloth by heat setting method.

[0040] S3, dyeing:

[0041] First, dye the cloth after embryo setting treatment with polyester, and then wash it; then dye cotton and wash it thoroughly with soap; finally, dye nylon and perform color fixation treatment.

[0042] Among them, polyester is dyed with disperse dyes (such as disperse blue, disperse red, disperse yellow, etc.), the dye concentration is 0.5%-2% (w / w), and the dyeing is carried out at 110-130 °C; cotton is dyed with reactive dyes (such as monothiol reactive dyes, dithiol reactive dyes, sulfate reactive dyes, etc.), the dye concentration is 1%-3% (w / w), and the dyeing is carried out at a temperature of 60-70 °C and a pH value of 9-11; nylon is dyed with acid dyes (such as azo acid dyes, pyrrolidine acid dyes, anthraquinone acid dyes, etc.), the dye concentration is 0.5%-2% (w / w), and the dyeing is carried out at a temperature of 90-110 °C and a pH value of 4-5.

[0043] S4, dehydration:

[0044] The cloth after the fixation treatment is dehydrated, the cloth is unfolded, and the cloth is gradually laid flat.

[0045] S5, width opening:

[0046] The dehydrated cloth is put into a width opener.

[0047] S6, final product shaping:

[0048] The cloth is shaped by heat setting.

[0049] Among them, the degreasing solution is a lipase solution, and the concentration of the lipase solution is 0.1%-2% (w / w); the pH value of the degreasing solution is 7-9, and the use temperature of the degreasing solution is 40-60 °C.

[0050] Among them, the temperature of the embryo setting is 150-200 °C; the dehydration method is one of centrifugal dehydration, pressing dehydration or drum dehydration.

[0051] Among them, the steps of the fixation treatment are as follows:

[0052] The cloth is immersed in a citric acid solution with a concentration of 1-3% (w / w) and soaked at a temperature of 50-60 °C for 10-30 min.

[0053] Among them, the pressure of the width opener is set to 3-6 kg, and the speed is set to 5-10 m / min.

[0054] Among them, the temperature of the heat setting is 150 °C-180 °C, and the time of the heat setting is 25-50 s.

[0055] Among them, the cloth material is nylon + polyester + cotton or nylon + modified polyester + cotton + spandex, and the dyeing durations of polyester, cotton and nylon are 35-75 min, 30-60 min and 40-65 min respectively.

[0056] The present invention realizes the efficient and uniform dyeing of multi-fiber blended lace fabrics through an innovative three-step dyeing process, which has significant advantages compared with traditional dyeing processes.

[0057] First, through the pre-treatment and embryo setting steps, the oil stains on the fabric surface are effectively removed, and the fabric structure is stabilized, laying a good foundation for the subsequent dyeing steps. This not only improves the dyeing uniformity but also enhances the durability of the fabric.

[0058] Secondly, in the dyeing step, a step-by-step dyeing method is adopted. First, polyester is dyed, then cotton is dyed, and finally nylon is dyed. This step-by-step dyeing method ensures that the dye can uniformly penetrate into various fibers, avoiding problems such as uneven dyeing and large color differences. At the same time, through the color fixation treatment step, the fastness and stability of dyeing are further improved.

[0059] Finally, through the dehydration, open-width, and finished product setting steps, a multi-fiber blended lace fabric with excellent dyeing effects and durability is obtained. These steps not only make the fabric more flat and soft but also improve the comfort and aesthetics of the fabric.

[0060] In summary, the three-step dyeing process for multi-fiber blended lace fabrics provided by the present invention has the advantages of uniform dyeing, bright color, and good durability, providing new technical support for the development of the textile industry.

[0061] Based on the above technical solutions, the present invention provides the following partial embodiments:

[0062] Example 1

[0063] This example provides a three-step dyeing process for multi-fiber blended lace fabrics, including the following steps:

[0064] S1, Pre-treatment:

[0065] Loosen the fabric strips, sew the fabric heads together, tie the fabric heads, make the fabric, and then immerse the fabric in the degreasing solution for degreasing;

[0066] S2, Embryo setting:

[0067] Perform embryo setting treatment on the fabric by heat setting method;

[0068] S3, Dyeing:

[0069] First, dye the fabric after embryo setting treatment with polyester, and then wash it; then dye cotton and wash it thoroughly with soap; finally, dye nylon and perform color fixation treatment;

[0070] Among them, for polyester dyeing, disperse blue is used, the dye concentration is 0.5% (w / w), and dyeing is carried out at 110 °C; for cotton dyeing, a monothiol reactive dye is used, the dye concentration is 1% (w / w), and dyeing is carried out at a temperature of 60 °C and a pH value of 9; for nylon dyeing, an azo acid dye is used, the dye concentration is 0.5% (w / w), and dyeing is carried out at a temperature of 90 °C and a pH value of 4.

[0071] S4, dehydration:

[0072] The cloth after fixation treatment is subjected to dehydration treatment. The cloth is unfolded, and the cloth is gradually laid flat and unfolded.

[0073] S5, width opening:

[0074] The dehydrated cloth is put into a width-opening machine.

[0075] S6, final product shaping:

[0076] The cloth is shaped by heat setting.

[0077] Among them, the degreasing solution is a lipase solution, and the concentration of the lipase solution is 0.1% (w / w); the pH value of the degreasing solution is 7, and the use temperature of the degreasing solution is 40 °C.

[0078] Among them, the temperature of embryo setting is 150 °C; the method of dehydration is centrifugal dehydration.

[0079] Among them, the steps of the fixation treatment are as follows:

[0080] The cloth is immersed in a citric acid solution with a concentration of 1% (w / w) and soaked at 50 °C for 10 min.

[0081] Among them, the pressure of the width-opening machine is set to 3 kg, and the speed is set to 5 m / min.

[0082] Among them, the temperature of heat setting is 150 °C, and the time of heat setting is 25 s.

[0083] Among them, the cloth material is nylon + polyester + cotton, and the dyeing durations of polyester, cotton, and nylon are 35 min, 30 min, and 40 min respectively.

[0084] Example 2

[0085] This example provides a three-step dyeing process for a multi-fiber blended lace fabric, including the following steps:

[0086] S1, pretreatment:

[0087] The cloth strips are loosened, the cloth heads are sewn together, and the cloth heads are tied up to make a cloth. Then the cloth is immersed in a degreasing solution for degreasing.

[0088] S2, Semi-finished product setting:

[0089] The semi-finished product of the cloth is set by heat setting method.

[0090] S3, Dyeing:

[0091] The cloth after semi-finished product setting is first dyed with polyester, and then washed; then dyed with cotton and washed thoroughly with soap; finally dyed with nylon and fixed.

[0092] Among them, for polyester dyeing, disperse red is used, the dye concentration is 1% (w / w), and dyeing is carried out at 120 °C; for cotton dyeing, disulfide-based reactive dyes are used, the dye concentration is 2% (w / w), and dyeing is carried out at a temperature of 65 °C and a pH value of 10; for nylon dyeing, pyrrolidine-based acid dyes are used, the dye concentration is 1.5% (w / w), and dyeing is carried out at a temperature of 100 °C and a pH value of 4.5.

[0093] S4, Dehydration:

[0094] The cloth after fixation is dehydrated. The cloth is unfolded to make it gradually spread out flat.

[0095] S5, Width opening:

[0096] The dehydrated cloth is put into a width-opening machine.

[0097] S6, Finished product setting:

[0098] The cloth is set by heat setting.

[0099] Among them, the degreasing solution is a lipase solution, the concentration of the lipase solution is 1% (w / w); the pH value of the degreasing solution is 8, and the use temperature of the degreasing solution is 50 °C.

[0100] Among them, the temperature of semi-finished product setting is 180 °C; the method of dehydration is squeezing dehydration.

[0101] Among them, the steps of fixation are as follows:

[0102] The cloth is immersed in a citric acid solution with a concentration of 2% (w / w) and soaked at 55 °C for 20 min.

[0103] Among them, the pressure of the width-opening machine is set to 5 kg, and the speed is set to 8 m / min.

[0104] Among them, the temperature of heat setting is 170 °C, and the time of heat setting is 40 s.

[0105] Among them, the cloth material is nylon + modified polyester + cotton + spandex, and the dyeing times of polyester, cotton, and nylon are 50 min, 40 min, and 60 min respectively.

[0106] Example 3

[0107] This example provides a three-step dyeing process for multi-fiber blended lace fabric, including the following steps:

[0108] S1, pretreatment:

[0109] Loosen the cloth strips, sew the cloth heads together, tie the cloth heads, make the cloth, and then immerse the cloth in the degreasing solution for degreasing.

[0110] S2, embryo setting:

[0111] Perform embryo setting treatment on the cloth by heat setting method.

[0112] S3, dyeing:

[0113] First dye the polyester of the cloth after embryo setting treatment, and then wash it; then dye the cotton and wash it clean with soap; finally dye the nylon and perform color fixation treatment.

[0114] Among them, disperse yellow is used for polyester dyeing, the dye concentration is 2% (w / w), and dyeing is carried out at 130 °C; sulfuric acid-based reactive dye is used for cotton dyeing, the dye concentration is 3% (w / w), and dyeing is carried out at 70 °C and pH 11; anthraquinone acid dye is used for nylon dyeing, the dye concentration is 2% (w / w), and dyeing is carried out at 110 °C and pH 5.

[0115] S4, dehydration:

[0116] Perform dehydration treatment on the cloth after color fixation treatment, pull the cloth apart, and gradually spread the cloth flat.

[0117] S5, opening:

[0118] Put the dehydrated cloth into the opening machine.

[0119] S6, finished product setting:

[0120] Perform setting on the cloth by heat setting.

[0121] Among them, the degreasing solution is a lipase solution, and the concentration of the lipase solution is 2% (w / w); the pH value of the degreasing solution is 9, and the use temperature of the degreasing solution is 60 °C.

[0122] Among them, the temperature of embryo setting is 200 °C; the dehydration method is drum dehydration.

[0123] Among them, the steps of color fixation treatment are as follows:

[0124] Immerse the cloth in a citric acid solution with a concentration of 3% (w / w) and soak it at 60 °C for 30 min.

[0125] Among them, the pressure of the open-width machine is set at 6 kg and the speed is set at 10 m / min.

[0126] Among them, the temperature of heat setting is 180 °C and the time of heat setting is 50 s.

[0127] Among them, the cloth material is nylon + polyester + cotton, and the dyeing times of polyester, cotton, and nylon are 75 min, 60 min, and 65 min respectively.

[0128] After dyeing the multi-fiber blended lace fabric provided in the above Examples 1-3, the color is bright, uniform, and has high color fastness, effectively solving the dyeing problems caused by the large differences in dyeing properties due to the large number of fiber types in the traditional dyeing process. At the same time, this process is simple to operate and easy to control, and is suitable for large-scale industrial production. In addition, by optimizing the parameter settings of each step, such as the concentration, pH value, and use temperature of the degreasing solution, the temperature of embryo setting, the types, concentrations, and dyeing conditions of dyes during dyeing, and the specific operations of steps such as dehydration, open-width, and finished product setting, the dyeing effect and the quality of the cloth are further improved. Therefore, the three-step dyeing process of the multi-fiber blended lace fabric provided by the present invention has broad application prospects in the textile industry.

[0129] The above shows and describes the basic principles, main features, and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

[0130] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The three-step dyeing process of multi-fiber blended lace fabric is characterized by: The following steps are involved: S1, pre-treatment: Loosen the strips of cloth, sew the ends of cloth together, tie the ends of cloth together to make cloth, and then immerse the cloth in a degreasing solution to remove the oil; S2, embryo determination: The cloth is subjected to embryo setting treatment by heat setting method; S3, staining: After the embryo is fixed and shaped, the cloth is first dyed with polyester and washed; then dyed with cotton and washed with soap; finally dyed with nylon and fixed with color; S4, Dehydration: Dehydrate the cloth after color fixing treatment, stretch the cloth and make it gradually spread out; S5, opening width: Put the dehydrated cloth into the opening machine; S6, finalization of finished product: The fabric is set by heat setting.

2. The three-step dyeing process of the multi-fiber blended lace fabric according to claim 1 is characterized in that: The degreasing solution is a lipase solution, and the concentration of the lipase solution is 0.1% to 2% (w / w).

3. The three-step dyeing process of the multi-fiber blended lace fabric according to claim 2 is characterized in that: The pH value of the degreasing solution is 7-9, and the use temperature of the degreasing solution is 40-60°C.

4. The three-step dyeing process of the multi-fiber blended lace fabric according to claim 1 is characterized in that: The temperature for the embryo shaping is 150-200°C.

5. The three-step dyeing process of multi-fiber blended lace fabric according to claim 1 is characterized in that: The dehydration method is one of centrifugal dehydration, squeezing dehydration or drum dehydration.

6. The three-step dyeing process of multi-fiber blended lace fabric according to claim 1 is characterized in that: The steps of the color fixing process are as follows: Immerse the cloth in citric acid solution at 50-60℃ for 10-30 minutes.

7. The three-step dyeing process of the multi-fiber blended lace fabric according to claim 6 is characterized in that: The concentration of the citric acid solution is 1-3% (w / w).

8. The three-step dyeing process of multi-fiber blended lace fabric according to claim 1, characterized in that: The pressure of the width opening machine is set to 3-6 kg, and the speed is set to 5-10 m / min.

9. The three-step dyeing process of multi-fiber blended lace fabric according to claim 1, characterized in that: The heat setting temperature is 150° C. to 180° C., and the heat setting time is 25 to 50 seconds.

10. The three-step dyeing process of multi-fiber blended lace fabric according to claim 1, characterized in that: The cloth material is nylon+polyester+cotton or nylon+modified polyester+cotton+spandex, and the dyeing time of the polyester, cotton and nylon is 35-75 minutes, 30-60 minutes and 40-65 minutes respectively.