Preparation method of lyocell and polyester interwoven fabric

Abstract

The invention provides a preparation method of a lyocell and polyester interwoven fabric, which is characterized in that the preparation method comprises preparation and dyeing and finishing processes of a lyocell polyester fabric, and the dyeing and finishing processes comprise a lyocell anti-fibrillation treatment process, a polyester dyeing process and a lyocell dyeing treatment process; wherein the lyocell anti-fibrillation treatment process comprises the following steps: adding an anti-fibrillation aid KR-6347 according to 1%-4%, then adding anhydrous sodium sulphate, treating for 8-15 minutes, heating to 60-70 DEG C, adding 10-25 g / L sodium carbonate, continuing for 30-50 minutes, then cooling, draining water and cleaning. The lyocell terylene fabric is woven into knitted single jersey through knitting equipment in a yarn matching mode of separating lyocell terylene, separating lyocell and spandex. The fabric structure and the dyeing and finishing process are reasonable, the fibrillation degree of the fabric is greatly reduced through the dyeing and finishing process, the fastness to washing is high, and the breathable effect of the fabric is better under the wet condition after dyeing and finishing.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of textile products, in particular to a preparation method of lyocell and polyester interwoven fabric. BACKGROUND

[0002] Lyocell fiber is a renewable green fiber with wood as raw material and a solvent recovery rate of more than 99.5% for spinning. The fabric has good luster, moisture absorption and drape, and is widely used in clothing and home textile products. However, lyocell fiber is prone to severe fibrillation during wet processing or washing, which greatly affects the appearance performance. In addition, due to its high moisture swelling, it is easy to cause poor air permeability under wet conditions.

[0003] Researchers have developed many methods to prevent fibrillation. At present, the commonly used method to solve lyocell fiber fibrillation is crosslinking treatment. Chinese patent (application number: 202411314385.9) discloses a pad dyeing process for preventing lyocell woven fabric fibrillation. Dye and crosslinking agent are immersed together, and after washing for 5 times, it is found that fibrillation is controlled to a certain extent, but more washing times are not verified. There is little research on improving the air permeability of fabric under wet conditions.

[0004] Therefore, how to design a preparation method of lyocell and polyester interwoven fabric, the fabric structure and dyeing and finishing process are reasonable, the fibrillation degree of the fabric is greatly reduced after the dyeing and finishing process, and the washing fastness is high, especially the air permeation effect of the fabric under wet conditions is better after dyeing and finishing. This is the technical problem to be solved in the technical field at present. SUMMARY

[0005] In order to solve the above problems and deficiencies existing in the prior art, the present application provides a preparation method of lyocell and polyester interwoven fabric, the fabric structure and dyeing and finishing process are reasonable, the fibrillation degree of the fabric is greatly reduced after the dyeing and finishing process, and the washing fastness is high, especially the air permeation effect of the fabric under wet conditions is better after dyeing and finishing.

[0006] In order to achieve the above purpose of the present application, the present application adopts the following technical scheme: A preparation method of lyocell and polyester interwoven fabric, characterized in that the preparation method comprises preparation of lyocell and polyester fabric and dyeing and finishing process, the dyeing and finishing process comprises polyester dyeing process, lyocell anti-fibrillation treatment process and lyocell dyeing treatment process; The lyocell anti-fibrillation treatment process comprises the following steps: Add anti-fibrillation aid KR-6347 according to 1%-4%, then add anhydrous sodium sulfate, treat for 8-15 min, raise temperature to 60-70℃, add sodium carbonate 10-25g / L, continue for 30-50 min, then lower temperature, drain and rinse; The polyester dyeing process comprises the following steps: After fabric cleaning, add water according to bath ratio 1:8-1:15 to make fabric run, raise temperature to 45-55℃, add polyester dyeing agent 0.5-3 g / L and disperse dye in proper amount, after 20-40 min, raise temperature to 115-130℃, continue for 40-60 min, lower temperature to 75-85℃, add penetrating agent 0.5-2 g / L and acid REO 4-8 g / L, raise temperature to 80-100℃, continue for 15-25 min, lower temperature to 60-70℃, drain and rinse; The lyocell dyeing process comprises the following steps: Raise temperature to 40-50℃, add active dye in proper amount, after treating for 20-50 min, add anhydrous sodium sulfate, continue for 30-60 min, raise temperature to 55-65℃, add sodium carbonate 5-25g / L, treat for 35-80 min, drain and rinse.

[0007] Improvement on the above technical solution: the lyocell polyester fabric adopts yarn matching mode of road separation 60S / 1 lyocell polyester and road separation 60S / 1 lyocell plus spandex, and is knitted into knitted jersey fabric by knitting equipment.

[0008] Further improvement on the above technical solution: the specific steps of the lyocell anti-fibrillation treatment process are as follows: Add anti-fibrillation aid KR-6347 according to 2%, then add anhydrous sodium sulfate, treat for 12 min, raise temperature to 65℃, add sodium carbonate 20g / L, continue for 40 min, then lower temperature, drain and rinse.

[0009] Further improvement on the above technical solution: the specific steps of the polyester dyeing process are as follows: After fabric cleaning, add water according to bath ratio 1:10 to make fabric run, raise temperature to 50℃, add polyester dyeing agent 1.5 g / L and disperse dye in proper amount, after 30 min, raise temperature to 120℃, continue for 50 min, lower temperature to 80℃, add penetrating agent 1 g / L and acid REO 6g / L, raise temperature to 90℃, continue for 20 min, lower temperature to 65℃, drain and rinse.

[0010] Further improvement on the above technical solution: the specific steps of the lyocell dyeing process are as follows: Warm to 40℃, add reactive dye, handle 40min, then add sodium carbonate 15g / L, handle 50min, drain and clean.

[0011] Further improvement on the technical scheme: in the lyocell cover polyester fabric, the yarn specification of polyester is 50D / 72F, and the yarn specification of spandex is 20D.

[0012] Compared with the prior art, the present application has the following advantages and positive effects: 1. After the dyeing and finishing process, the fabric fibrillation degree is greatly reduced, and the washing fastness is high; 2. After the dyeing and finishing process, the air permeability effect under wet state is better. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The fabric organizational structure schematic diagram of the present application adopts the yarn matching mode of 60S / 1 lyocell cover polyester and 60S / 1 lyocell plus spandex; Figure 2 The fabric microscope observation photo of the lyocell and polyester interwoven fabric after dyeing and finishing treatment of the present application; Figure 3 The process curve schematic diagram of the lyocell and polyester interwoven fabric lyocell anti-fibrillation treatment of the present application; Figure 4 The process curve schematic diagram of the lyocell and polyester interwoven fabric polyester dyeing of the present application; Figure 5 The process curve schematic diagram of the lyocell and polyester interwoven fabric lyocell dyeing of the present application; Figure 6 The electron microscope photo of the lyocell and polyester interwoven fabric after 20 times of fabric washing without anti-fibrillation treatment of the present application; Figure 7 The electron microscope photo of the lyocell and polyester interwoven fabric after 20 times of fabric washing with anti-fibrillation treatment of the present application; Figure 8 The data comparison chart of the fabric air permeability rate before and after the dyeing and finishing process of the lyocell and polyester interwoven fabric of the present application. DETAILED DESCRIPTION

[0014] Reference Figures 1-8 The specific embodiment of the preparation method of the lyocell and polyester interwoven fabric of the present application, the preparation method includes the preparation of lyocell cover polyester fabric and dyeing and finishing process, the dyeing and finishing process includes lyocell anti-fibrillation treatment process, polyester dyeing process and lyocell dyeing treatment process; The above lyocell anti-fibrillation treatment process includes the following steps: Add anti-fibrillation aid KR-6347 by 1%-4%, then add anhydrous sodium sulfate, treat for 8-15 min, raise temperature to 60-70℃, add sodium carbonate 10-25 g / L, continue for 30-50 min, then lower temperature, drain and rinse; the polyester dyeing process comprises the following steps: After washing the fabric, add water according to bath ratio 1:8-1:15 to make the fabric run, raise temperature to 45-55℃, add polyester dyeing agent 0.5-3 g / L, disperse dye in proper amount, after 20-40 min, raise temperature to 115-130℃, continue for 40-60 min, lower temperature to 75-85℃, add penetrating agent 0.5-2 g / L, acid REO 4-8 g / L, raise temperature to 80-100℃, continue for 15-25 min, lower temperature to 60-70℃, drain and rinse; The above lyocell dyeing treatment process comprises the following steps: Raise temperature to 40-50℃, add reactive dye in proper amount, after treating for 20-50 min, add anhydrous sodium sulfate, continue for 30-60 min, raise temperature to 55-65℃, add sodium carbonate 5-25 g / L, treat for 35-80 min, drain and rinse.

[0015] The above lyocell polyester fabric is knitted into knitted jersey by knitting equipment in the yarn matching mode of 60S / 1 lyocell polyester and 60S / 1 lyocell plus spandex. Preferably, the yarn specification of the above polyester is 50D / 72F, and the yarn specification of the above spandex is 20D, as shown in Figure 1 .

[0016] Embodiment 1 of the preparation method of the lyocell and polyester interwoven fabric of the present application comprises the preparation of lyocell polyester fabric and dyeing and finishing process. The lyocell polyester fabric is prepared in the yarn matching mode (see the schematic diagram of fabric structure Figure 1 ) of 60S / 1 lyocell polyester and 60S / 1 lyocell plus spandex (the microscopic observation photo is shown in Figure 2 ), and preferably, the yarn specification of the above polyester is 50D / 72F, and the yarn specification of the above spandex is 20D. The dyeing and finishing process comprises lyocell anti-fibrillation treatment process, polyester dyeing process and lyocell dyeing treatment process; The specific steps of the above lyocell anti-fibrillation treatment process are as follows (as shown in Figure 3 ): Add anti-fibrillation aid KR-6347 by 2%, then add anhydrous sodium sulfate, treat for 12 min, raise temperature to 65℃, add sodium carbonate 20 g / L, continue for 40 min, then lower temperature, drain and rinse.

[0017] The specific steps of the above polyester dyeing process are as follows (as shown inFigure 4 The specific steps of the above-mentioned lyocell anti-fibrillation treatment process are as follows: After the fabric is cleaned, the fabric is run according to the water bath ratio of 1:10, the temperature is raised to 50 DEG C, the polyester dyeing agent 1.5 g / L and the appropriate amount of disperse dye are sequentially added, 30 min later, the temperature is raised to 120 DEG C, and the temperature is maintained for 50 min, the temperature is lowered to 80 DEG C, the penetrating agent 1 g / L and the acid REO 6 g / L are sequentially added, the temperature is raised to 90 DEG C, and the temperature is maintained for 20 min, the temperature is lowered to 65 DEG C, and the water is drained and cleaned.

[0018] The specific steps of the above-mentioned lyocell anti-fibrillation treatment process are as follows: Figure 5 The specific steps of the above-mentioned lyocell anti-fibrillation treatment process are as follows: The temperature is raised to 40 DEG C, the appropriate amount of reactive dye is added, the anhydrous sodium sulfate is added after the treatment for 40 min, the temperature is maintained for 35 min, the temperature is raised to 60 DEG C, the sodium carbonate 15 g / L is added, the treatment is carried out for 50 min, the water is drained and cleaned.

[0019] Embodiment 2 of the application discloses a preparation method of a lyocell and polyester interwoven fabric, which comprises the preparation of a lyocell and polyester interwoven fabric and a dyeing and finishing process. Figure 1 The specific steps of the above-mentioned lyocell anti-fibrillation treatment process are as follows: Figure 2 The specific steps of the above-mentioned lyocell anti-fibrillation treatment process are as follows: Figure 1 The specific steps of the above-mentioned lyocell anti-fibrillation treatment process are as follows: The specific steps of the above-mentioned lyocell anti-fibrillation treatment process are as follows: The anti-fibrillation auxiliary KR-6347 is added according to 1%, the anhydrous sodium sulfate is added, the treatment is carried out for 8 min, the temperature is raised to 70 DEG C, the sodium carbonate 15 g / L is added, the temperature is maintained for 50 min, and then the temperature is lowered, the water is drained and cleaned.

[0020] The specific steps of the above-mentioned lyocell anti-fibrillation treatment process are as follows: After the fabric is cleaned, the fabric is run according to the water bath ratio of 1:8, the temperature is raised to 45 DEG C, the polyester dyeing agent 0.5 g / L and the appropriate amount of disperse dye are sequentially added, 20 min later, the temperature is raised to 125 DEG C, and the temperature is maintained for 60 min, the temperature is lowered to 75 DEG C, the penetrating agent 0.5 g / L and the acid REO 4 g / L are sequentially added, the temperature is raised to 80 DEG C, and the temperature is maintained for 15 min, the temperature is lowered to 60 DEG C, and the water is drained and cleaned. The specific steps of the above-mentioned lyocell anti-fibrillation treatment process are as follows: The temperature is raised to 45 DEG C, the appropriate amount of reactive dye is added, the anhydrous sodium sulfate is added after the treatment for 30 min, the temperature is maintained for 30 min, the temperature is raised to 55 DEG C, the sodium carbonate 10 g / L is added, the treatment is carried out for 70 min, the water is drained and cleaned.

[0021] Example 3 of the present invention describes a method for preparing a lyocell and polyester interwoven fabric. The preparation method includes the preparation and dyeing / finishing processes of the lyocell-coated polyester fabric. The lyocell-coated polyester fabric is prepared using a 60S / 1 lyocell-coated polyester interwoven yarn, with a yarn combination of 60S / 1 lyocell and spandex (see the schematic diagram of the fabric structure). Figure 1 ) Woven fabric (microscopic photographs as shown) Figure 2 As shown), preferably, the polyester yarn specification is 50D / 72F, and the spandex yarn specification is 20D, as shown. Figure 1 As shown. The dyeing and finishing process includes a lyocell anti-fibrillation treatment process, a polyester dyeing process, and a lyocell dyeing treatment process; The specific steps of the above-mentioned Lyocell antifibrillation treatment process are as follows: Add 4% of antifibrillation agent KR-6347, then add sodium sulfate, treat for 15 minutes, heat to 70℃, add 25g / L of sodium carbonate, continue for 30 minutes, then cool down, drain and wash. The specific steps of the above polyester dyeing process are as follows: After washing the fabric, add water at a liquor ratio of 1:15 and run the fabric. Heat the fabric to 55°C, then add 3 g / L of polyester dye and an appropriate amount of disperse dye. After 40 minutes, heat the fabric to 130°C and hold for 40 minutes. Then, cool the fabric to 85°C and add 2 g / L of penetrant and 8 g / L of acidic REO. Heat the fabric to 100°C and hold for 15 minutes. Then, cool the fabric to 70°C, drain the water, and wash the fabric. The specific steps of the above Lyocell staining process are as follows: Heat to 50℃, add an appropriate amount of reactive dye, treat for 50 min, then add sodium sulfate and continue for 60 min. Heat to 65℃, add 25 g / L of sodium carbonate, treat for 40 min, drain and wash.

[0022] Evaluation method for preventing fibrillation: Refer to standard ISO 6330, use a standard washing machine with 4N washing program, wash 20 times, take it out and dry it, and observe the fibrillation of the fabric surface with a scanning electron microscope.

[0023] like Figure 6 As shown, untreated Lyocell fabric exhibited significant fibrillation after 20 washes. After treatment with the dyeing and finishing process of Example 1, the degree of fibrillation was greatly reduced; after 20 washes, the surface showed virtually no fibrillation. Figure 7 ).

[0024] Furthermore, under wet conditions, the air permeability of the fabric after dyeing and finishing in Example 1 was greater than that before dyeing and finishing, increasing by approximately 10.8%. Figure 8As shown, it is illustrated that the dyeing and finishing process can make the fabric have better air permeability in the wet state.

[0025] Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the spirit and scope of the present application should also be within the protection scope of the present application.

Claims

1. A process for the production of a lyocell and polyester interwoven fabric, characterized in that, The preparation method comprises preparation of the lyocell terylene fabric and a dyeing and finishing process, the dyeing and finishing process comprising a lyocell anti-fibrillation treatment process, a terylene dyeing process and a lyocell dyeing process; the lyocell anti-fibrillation treatment process comprises the following steps: According to 1%-4%, anti-fibrillation auxiliary KR-6347 is added, then anhydrous sodium sulfate is added, and the treatment is carried out for 8-15 min, the temperature is raised to 60-70 DEG C, 10-25 g / L of sodium carbonate is added, and the temperature is lowered after 30-50 min, then water is drained and cleaned; The terylene dyeing process comprises the following steps: After the fabric is cleaned, water is added according to the bath ratio of 1:8-1:15 to make the fabric run, the temperature is raised to 45-55 DEG C, 0.5-3 g / L of terylene dyeing agent and an appropriate amount of disperse dye are added in sequence, the temperature is raised to 115-130 DEG C after 20-40 min, and the temperature is lowered to 75-85 DEG C, then 0.5-2 g / L of permeating agent and 4-8 g / L of acid REO are added in sequence, the temperature is raised to 80-100 DEG C, the temperature is lowered to 60-70 DEG C after 15-25 min, then water is drained and cleaned; The lyocell dyeing process comprises the following steps: The temperature is raised to 40-50 DEG C, an appropriate amount of reactive dye is added, anhydrous sodium sulfate is added after 20-50 min, the temperature is raised to 55-65 DEG C, 5-25 g / L of sodium carbonate is added, and the temperature is lowered after 35-80 min, then water is drained and cleaned.

2. A process for the production of lyocell and polyester intermingled fabric as claimed in claim 1, wherein, The lyocell terylene fabric is knitted into a knitted sweat cloth by using the yarn collocation mode of 60S / 1 lyocell terylene and 60S / 1 lyocell plus spandex through a knitting equipment.

3. A process for the production of a lyocell and polyester interwoven fabric according to claim 1 or 2, characterized in that, The specific steps of the terylene dyeing process are as follows: After the fabric is cleaned, water is added according to the bath ratio of 1:8-1:15 to make the fabric run, the temperature is raised to 45-55 DEG C, 0.5-3 g / L of terylene dyeing agent and an appropriate amount of disperse dye are added in sequence, the temperature is raised to 115-130 DEG C after 20-40 min, and the temperature is lowered to 75-85 DEG C, then 0.5-2 g / L of permeating agent and 4-8 g / L of acid REO are added in sequence, the temperature is raised to 80-100 DEG C, the temperature is lowered to 60-70 DEG C after 15-25 min, then water is drained and cleaned; 4. A process for producing a lyocell and polyester interwoven fabric according to claim 1 or 2, characterized in that, The specific steps of the lyocell anti-fibrillation treatment process are as follows: According to 2%, anti-fibrillation auxiliary KR-6347 is added, then anhydrous sodium sulfate is added, and the treatment is carried out for 12 min, the temperature is raised to 65 DEG C, 20 g / L of sodium carbonate is added, and the temperature is lowered after 40 min, then water is drained and cleaned.

5. A process for producing a lyocell and polyester interwoven fabric according to claim 3, characterized in that, The specific steps of the lyocell anti-fibrillation treatment process are as follows: According to 2%, anti-fibrillation auxiliary KR-6347 is added, then anhydrous sodium sulfate is added, and the treatment is carried out for 12 min, the temperature is raised to 65 DEG C, 20 g / L of sodium carbonate is added, and the temperature is lowered after 40 min, then water is drained and cleaned.

6. A process for producing a lyocell and polyester interwoven fabric according to claim 1 or 2, characterized in that, The specific steps of the lyocell dyeing process are as follows: The temperature is raised to 40 DEG C, an appropriate amount of reactive dye is added, anhydrous sodium sulfate is added after 20-50 min, the temperature is raised to 55-65 DEG C, 5-25 g / L of sodium carbonate is added, and the temperature is lowered after 35-80 min, then water is drained and cleaned.

7. A process for producing a lyocell and polyester interwoven fabric according to claim 3, characterized in that, The specific steps of the lyocell dyeing process are as follows: Rise to 40℃, add active dyes, handle 40min, then add sodium sulfate, continue 35min, rise to 60℃, add sodium carbonate 15g / L, handle 50min, drain and clean.

8. A process for producing a lyocell and polyester interwoven fabric according to claim 4, characterized in that, The specific steps of the lyocell dyeing treatment process are as follows: Rise to 40℃, add active dyes, handle 40min, then add sodium sulfate, continue 35min, rise to 60℃, add sodium carbonate 15g / L, handle 50min, drain and clean.

9. A process for producing a lyocell and polyester interwoven fabric according to claim 5, characterized in that, The specific steps of the lyocell dyeing treatment process are as follows: Rise to 40℃, add active dyes, handle 40min, then add sodium sulfate, continue 35min, rise to 60℃, add sodium carbonate 15g / L, handle 50min, drain and clean.

10. A process for the production of lyocell and polyester intermingled fabric as claimed in claim 2, wherein, The specific steps of the lyocell dyeing treatment process are as follows: In the lyocell and polyester fabric, the yarn specification of polyester is 50D / 72F, and the yarn specification of spandex is 20D.

Images