Short-process production method for improving fibrillation of cross-linked tencel and cotton interwoven, printed and dyed dark-color fabric

Abstract

The invention discloses a short-process production method for improving fibrillation of a cross-linked tencel and cotton interwoven printing and dyeing dark-color fabric, and relates to the technical field of textile processing. The method comprises the following steps of weaving, gray fabric washing, dyeing, tentering and super-softening. Wherein in the weaving process, cross-linked tencel is used in the radial direction, and non-fluorescent white cotton yarn is used in the weft direction; in the tentering process, a color fixing agent ECO is 15-20 g / L, a penetrating agent is 1-2 g / L, two times of dipping and two times of rolling are conducted, and the speed is 50-70 m / min The fabric is soft, fine and soft in hand feeling, the fabric is durable and washable, the color fastness after washing is 4-5 levels, meanwhile, the production process is greatly shortened, energy is saved, emission is reduced, and the fabric is environmentally friendly.

Description

Technical Field

[0001] This invention relates to the field of textile processing technology, specifically to a short-process production method for improving the fibrillation of cross-linked Tencel and cotton interwoven dyed dark fabrics. Background Technology

[0002] Tencel fiber, a novel textile material combining the comfort of natural fibers with the functionality of synthetic fibers, is widely used in high-end textile fabrics due to its excellent moisture absorption and breathability, soft drape, and environmentally friendly and renewable properties. Cross-linked Tencel, through molecular cross-linking modification, was originally intended to improve the structural stability of the fiber and reduce the risk of fibrillation during washing. Fibrillation is an inherent defect of Tencel fiber; its core-sheath structure is prone to damage during wear and washing, exposing the internal fibers. This leads to whitening and pilling of the fabric, especially dark-colored fabrics, severely damaging the appearance and aesthetics of the garment and significantly affecting its lifespan.

[0003] However, the production and processing of existing cross-linked Tencel and cotton interwoven dyed dark-colored fabrics still faces many technical bottlenecks: On the one hand, the pre-dyeing treatment usually requires a strong alkali process, which severely damages the cross-linked protective layer on the surface of the cross-linked Tencel, causing a significant reduction in its anti-fibrillation performance. This makes it difficult to avoid the problem of whitening after washing in subsequent dyeing and finishing processes, and fails to fully utilize the modified advantages of cross-linked Tencel. On the other hand, strong alkali treatment also poses a risk of increased formaldehyde content, which not only increases the difficulty and cost of subsequent formaldehyde removal but may also affect the environmental safety of the product, which is inconsistent with the current trend of green production in the textile industry.

[0004] To alleviate the problem of fibrillation, some solutions in the industry adopt post-treatment light resin finishing processes. However, this method leads to a longer production process and more complicated procedures, which not only increases energy consumption such as water, electricity, and steam and production time, reducing production efficiency, but may also affect the natural feel and breathability of the fabric due to multiple processing steps. At the same time, in traditional production processes, the dyeing and finishing of Tencel and cotton blended fabrics often involves multiple pretreatment steps such as cold piling, desizing, scouring, and bleaching. The process is lengthy and the process parameters are complex, which not only increases production costs, but also poses an environmental pressure of increased pollutant emissions.

[0005] In summary, existing production technologies for cross-linked Tencel and cotton interwoven dyeing of dark-colored fabrics suffer from multiple problems, including poor fibrillation control, easy excess of formaldehyde content, long production process, low efficiency, insufficient environmental friendliness, and the need to improve the hand feel and appearance quality of the products. There is an urgent need for a short-process, efficient, environmentally friendly production method that can fundamentally improve the fibrillation and formaldehyde issues in order to meet the market demand for high-quality, green and environmentally friendly textile fabrics. Summary of the Invention

[0006] The technical problem to be solved by this invention is to overcome the shortcomings of the prior art and provide a short-process production method for improving the fibrillation of cross-linked Tencel and cotton interwoven dyeing dark fabrics. This method not only solves the problem of fabric turning white after washing due to fibrillation, but also solves the problems of long processing flow, many steps, and long time consumption in the existing process. The fabric treated by the method of this invention is durable, washable, does not turn white, and has a soft hand feel.

[0007] The technical solution of this invention is as follows: A short-process production method for improving the fibrillation of cross-linked Tencel and cotton interwoven dyeing dark fabrics includes the following steps: weaving → greige fabric washing → dyeing → stretching → super-softening; wherein, in the weaving process: cross-linked Tencel is used in the radial direction and non-fluorescent white cotton yarn is used in the weft direction; in the stretching process: color fixing agent ECO 15-20g / L, penetrant 1-2g / L, two dips and two nips, machine speed 50-70m / min.

[0008] Preferably, the fabric washing process includes: penetrant 1-2 g / L, wide-temperature α desizing enzyme 1-3 g / L, chelating agent 4-10 g / L, degreasing agent 1-4 g / L, one dip and one roll, roll-off rate 90-100%, machine speed 30-40 m / min, material tank temperature 40-50℃, steaming box temperature 95-100℃, washing tank temperature 90-98℃, and washing tank tension 1-3 bar.

[0009] Preferably, in the fabric washing process, the penetrant is ZFC-L, the wide-temperature α desizing enzyme is DS-HT, the chelating agent is RED, and the degreasing agent is TF-109H.

[0010] Preferably, the dyeing process includes: 33.33 g / L of reactive dye-black (BLACK CED), 4 g / L of reactive dye-red (RS-B), 10.465 g / L of reactive dye-yellow (YS-3R), 1-2 g / L of penetrant, 5-10 g / L of liquid alkali, 20-40 g / L of alkali substitute, 4-8 g / L of soaping agent, a tank temperature of 26-30°C, one dip and one roll, a machine speed of 10-20 m / min, and stacking at a constant temperature of 26°C for 20-24 hours.

[0011] Preferably, in the dyeing process, the penetrant is ZFC-L, the liquid alkali is caustic soda, the substitute alkali is WG, and the soaping agent is WO-N.

[0012] Preferably, the ultra-softening process includes: softener 2-3g / L, penetrant 1-2g / L, color-fixing agent 1.5-2g / L, upper air volume 70-75%, lower air volume 50-60%, exhaust air volume 70-75%, reverse time 3s, pause 1.5s, and vehicle speed 10-15m / min.

[0013] Preferably, in the ultra-softening process, the softener is AVO NEW, the penetrant is ZFC-L, and the color-fixing agent is ECO.

[0014] This invention achieves multi-dimensional breakthroughs compared to existing technologies through the synergistic optimization of raw material selection, process route, and key parameters, as detailed below: 1. This invention innovatively employs a raw material combination of "radial cross-linked Tencel + weft-direction non-fluorescent white cotton yarn," avoiding the impact of impurities and cottonseed hulls in ordinary cotton yarn on the fabric's structural stability from the source. Simultaneously, by optimizing the entire process of washing, dyeing, stretching, and ultra-softening the greige fabric, it avoids the damage to the cross-linked Tencel protective layer caused by traditional strong alkali pretreatment, fully leveraging the anti-fibrillation properties of cross-linked Tencel. Verified through 20 wash tests, the fabric processed using this method maintains the same appearance as before washing, with no white fuzz or whitening, effectively solving the industry pain point of whitening after washing in dark-colored interwoven fabrics, and significantly extending the garment's lifespan and aesthetic durability.

[0015] 2. In traditional processes, strong alkali treatment and multiple chemical finishing steps easily lead to increased formaldehyde release. This invention achieves effective control of formaldehyde content through two core designs: first, a streamlined process, eliminating redundant steps that easily generate formaldehyde, such as cold stacking, boiling, and bleaching; second, the use of carefully selected environmentally friendly additives, employing a low-formaldehyde fixing agent ECO in the stretching and ultra-softening processes, combined with a gentle fabric washing formula (wide-temperature α-desizing enzyme DS-HT, chelating agent RED, etc.), avoiding excessive use and residue of chemical agents. Test results show that the formaldehyde content of the product of this invention is only 2.25-4.12 ppm, improving the product's safety and applicability.

[0016] 3. On the one hand, the ultra-softening process of this invention precisely controls the concentration of the softener AVO NEW and the parameters of the upper, lower, and exhaust air volumes, combined with the dynamic processing mode of "3s reverse + 1.5s pause", so that the fabric can obtain a smooth and delicate touch, and the comfort is greatly improved. On the other hand, the dyeing process uses a specific ratio of reactive dye combination (reactive dye-black BLACK CED 33.33g / L, reactive dye-red RS-B 4g / L, reactive dye-yellow YS-3R 10.465g / L), and controls the temperature of the material tank at 26-30℃ and the constant temperature room at 26℃ for 20-24h to ensure that the dye penetrates evenly and is fully fixed, so that the fabric has excellent color fastness and no appearance defects such as cotton seed hull residue. All products meet the first-class product standard.

[0017] 4. This invention simplifies the traditional 8-11 dyeing and finishing processes into 4 core processes: "fabric washing → dyeing → stretching → super softening," significantly shortening the production process. The simplified process not only reduces energy consumption (water, electricity, steam, etc.) and the use of chemical auxiliaries and pollutant emissions, aligning with green production principles, but also significantly shortens the production cycle. Combined with optimized machine speed parameters for each process, this greatly improves production efficiency, reduces time and operating costs for enterprises, and possesses strong industrial application value. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of this invention will be clearly and completely described below in conjunction with the embodiments of this invention.

[0019] Unless otherwise specified, all raw materials used in the following examples are commercially available products.

[0020] The sources of some of the raw materials used in the following examples and comparative examples are as follows: Fluorescent-free white cotton yarn: Wuhu Fuchun Dyeing & Weaving Co., Ltd.; Penetrant ZFC-L: Keke Fine Chemicals (Shanghai) Co., Ltd.; Wide-temperature α-degradase DS-HT: Zibo Lurui Fine Chemical Co., Ltd.; Chelating agent RED: Angco Chemical (China) Co., Ltd.; Degreasing agent TF-109H: Zhejiang Chuanhua Chemical Group; Reactive dye - Black CED: Qingdao Weishiji New Materials Co., Ltd.; Reactive dye - Red RS-B: Angco Chemical (China) Co., Ltd.; Reactive dye - Yellow YS-3R: Angco Chemical (China) Co., Ltd.; Caustic soda: Qilu Branch of China Petroleum & Chemical Corporation; Alkali Alkali Substitute WG: KOKE Fine Chemicals (Shanghai) Co., Ltd.; Soap detergent WO-N: Zibo Lurui Fine Chemical Co., Ltd.; AVO Softener NEW: Zibo Lurui Fine Chemical Co., Ltd.; Color fixing agent ECO: Shanghai Xinyong Textile Dyeing & Chemical Co., Ltd.; Hydrogen peroxide (H2O2): Shandong Minghua New Materials Co., Ltd. Refined Enzyme-601Lconc: Tianjin Hongliyuan Industry & Trade Co., Ltd.; Elastic finishing agent CLA, catalyst CLB: Shijiazhuang Kunpu Chemical Co., Ltd.

[0021] Example 1 Fabric specifications: Warp yarn: Cross-linked Tencel SIRO 20 / 2 English count; Weft yarn: 10-count non-fluorescent white cotton yarn; Warp density: 75 threads / inch; Weft density: 55 threads / inch; Fabric weight: 315g / m² 2 ; Fabric structure: 3 / 1s.

[0022] The processing technology is as follows: S1 grey fabric washing: penetrant ZFC-L 2g / L, wide-temperature α desizing enzyme DS-HT 2g / L, chelating agent RED 8g / L, degreasing agent TF-109H 3g / L, one dip and one roll, roll residue 90%, machine speed 30m / min, material tank temperature 45℃, steaming box temperature 100℃, washing tank temperature 98℃, washing tank tension 2bar.

[0023] S2 dyeing: Reactive dye - Black (CED) 33.33 g / L, Reactive dye - Red (RS-B) 4 g / L, Reactive dye - Yellow (YS-3R) 10.465 g / L, Penetrant ZFC-L 2 g / L, Caustic soda 8 g / L, Alkali substitute WG 30 g / L, Soaping agent WO-N 6 g / L, Tank temperature 30℃, one dip and one roll, machine speed 15 m / min, constant temperature room 26℃, stacking for 22 h.

[0024] S3 stretching: ECO fixing agent 18g / L, ZFC-L penetrant 1.5g / L, two dips and two rolls, machine speed 65m / min.

[0025] S4 Ultra Soft: AVO NEW 2.5g / L softener, ZFC-L 1.5g / L penetrant, ECO 1.8g / L color fixative, 70% upper air volume, 55% lower air volume, 72% exhaust volume, 3s reverse time, 1.5s pause, 10m / min speed.

[0026] Example 2 Fabric specifications: Warp yarn: Cross-linked Tencel 80 / 2 English count; Weft yarn: 80 / 2 count non-fluorescent white cotton yarn; Warp density: 160 threads / inch; Weft density: 90 threads / inch; Fabric weight: 140g / m 2 ; Fabric structure: 2 / 2.

[0027] The processing technology is as follows: S1 grey fabric washing: penetrant ZFC-L 1g / L, wide-temperature α desizing enzyme DS-HT 1g / L, chelating agent RED 4g / L, degreasing agent TF-109H 1g / L, one dip and one roll, roll residue 95%, machine speed 35m / min, material tank temperature 50℃, steaming box temperature 95℃, washing tank temperature 95℃, washing tank tension 3bar.

[0028] S2 dyeing: Reactive dye - Black (CED) 33.33 g / L, Reactive dye - Red (RS-B) 4 g / L, Reactive dye - Yellow (YS-3R) 10.465 g / L, Penetrant ZFC-L 1 g / L, Caustic soda 5 g / L, Alkali substitute (WG) 20 g / L, Soaping agent (WO-N) 5 g / L, Tank temperature 26℃, one dip and one roll, machine speed 20 m / min, constant temperature chamber 26℃, stacking for 24 h.

[0029] S3 stretching: ECO fixing agent 20g / L, ZFC-L penetrant 1g / L, two dips and two rolls, machine speed 70m / min.

[0030] S4 Ultra Soft: Softener AVO NEW 3g / L, penetrant ZFC-L 2g / L, color fixative ECO 1.5g / L, upper air volume 75%, lower air volume 60%, exhaust air volume 75%, reverse time 3s, pause 1.5s, vehicle speed 15m / min.

[0031] Example 3 Fabric specifications: Warp yarn: Cross-linked Tencel 60 count; Weft yarn: 60-count non-fluorescent white cotton yarn; Warp density: 210 threads / inch; Weft density: 110 threads / inch; Fabric structure: 4 / 1 sateen.

[0032] The processing technology is as follows: S1 grey fabric washing: penetrant ZFC-L 1.6g / L, wide-temperature α desizing enzyme DS-HT 3g / L, chelating agent RED 10g / L, degreasing agent TF-109H 4g / L, one dip and one nip, nip rate 100%, machine speed 40m / min, material tank temperature 40℃, steaming box temperature 98℃, washing tank temperature 90℃, washing tank tension 1bar.

[0033] S2 dyeing: Reactive dye - Black (CED) 33.33 g / L, Reactive dye - Red (RS-B) 4 g / L, Reactive dye - Yellow (YS-3R) 10.465 g / L, Penetrant ZFC-L 2 g / L, Caustic soda 10 g / L, Alkali substitute WG 40 g / L, Soaping agent WO-N 8 g / L, Tank temperature 30℃, one dip and one roll, machine speed 10 m / min, constant temperature chamber 26℃, stacking for 20 h.

[0034] S3 stretching: ECO fixing agent 15g / L, penetrant 2g / L, two dips and two rolls, machine speed 50m / min.

[0035] S4 Ultra Soft: Softener AVO NEW 2g / L, penetrant ZFC-L 1g / L, color fixative ECO 2g / L, upper air volume 75%, lower air volume 50%, exhaust air volume 70%, reverse time 3s, pause 1.5s, vehicle speed 12m / min.

[0036] Comparative Example 1 The difference from Example 1 is that the weft yarn is 10-count raw cotton yarn; the processing technology is: greige fabric washing → cold padding → desizing → scouring → bleaching → dyeing → stretching → super softening, among which the steps that are different from those in Example 1 are as follows: Cold stack: 45 mL / kg hydrogen peroxide, 48 mL / kg caustic soda, 19 mL / kg ZFC-L penetrant, 45℃ trough temperature, 50 m / min vehicle speed; Desizing: Wide-temperature α-desizing enzyme DS-HT 3mL / kg, penetrant ZFC-L 5mL / kg, refining enzyme-601Lconc 1mL / kg, steaming in the steamer at 100℃ for 15min, material tank temperature 50℃, water level in the desizing steamer 10cm; material tank temperature 50℃. Boiling: NaOH 45g / L, refining enzyme-601Lconc 4g / L, penetrant ZFC-L 6g / L, chelating agent RED 4g / L; vehicle speed 70m / min, material tank temperature 50℃, boiling steamer water tank level 7cm; Bleaching: caustic soda 2.5g / L, hydrogen peroxide 10g / L (27.5%), chelating agent RED 10g / L; steaming in a steam oven at 100℃ for 25min.

[0037] Comparative Example 2 The difference from Example 1 is that the weft yarn is 10-count raw cotton yarn.

[0038] Comparative Example 3 The difference from Example 1 is that the weft yarn is 10-count cotton yarn; the processing technology is: greige fabric washing → cold piling → desizing → scouring → bleaching → dyeing → wrinkle-free → baking → baking and washing → stretching → pre-shrinking, wherein the steps that are different from those in Example 1 are as follows: Cold stack: 45 mL / kg hydrogen peroxide, 48 mL / kg caustic soda, 19 mL / kg ZFC-L penetrant, 45℃ trough temperature, 50 m / min vehicle speed; Desizing: Desizing enzyme DS-HT 3mL / kg, penetrant ZFC-L 5mL / kg, refining enzyme-601Lconc 1mL / kg, steaming in the steamer at 100℃ for 15min, material tank temperature 50℃, water level in the desizing steamer 10cm; material tank temperature 50℃. Boiling: NaOH 45g / L, refining enzyme-601Lconc 4g / L, penetrant ZFC-L 6g / L, chelating agent RED 4g / L; vehicle speed 70m / min, material tank temperature 50℃, boiling steamer water tank level 7cm; Bleaching: caustic soda 2.5g / L, hydrogen peroxide 10g / L (27.5%), chelating agent RED 10g / L; steaming in a steam oven at 100℃ for 25min; Wrinkle-free: Penetrant ZFC-L 2g / L, Elastic finishing agent CLA 150g / L, Catalyst CLB 15g / L, Softener AVONEW 40g / L; Two dips and two rolls, machine speed 40m / min, drying oven temperature 80℃, liquid level 60%, roll-off rate 70%; Baking: machine speed 30m / min, air volume 80%, drying room temperature 170℃; Baking and washing: machine speed 60m / min, trough rolling pressure 3Bar, rolling residue rate 70%; Stretching: Softener AVO NEW 20g / L, two dips and two nips, machine speed 70m / min, drying oven temperature 130℃, liquid level 60%; Pre-shrinkage: Blanket temperature 110℃, rubber blanket temperature 100℃, compression distance 5mm, shrinkage adjustment frame tension 20N.

[0039] The fabric treatment results of Examples 1-3 and Comparative Examples 1-3 are shown in Table 1. The fibrillation effect after 20 washes was evaluated according to GB / T 3921-2008 "Textiles - Tests for Color Fastness - Color Fastness to Soap Washing"; the formaldehyde content was tested according to GB / T2912.1-2009 "Textiles - Determination of Formaldehyde - Part 1: Free and Hydrolyzed Formaldehyde (Water Extraction Method)"; and the fabric appearance was evaluated according to "Textiles - Methods for Detecting Defects in Fabrics". Table 1. Fabric treatment results of Examples 1-3 and Comparative Examples 1-3

[0040] As shown in Table 1, in Comparative Example 1, ordinary raw cotton yarn was used for the weft yarn instead of fluorescent-free white cotton yarn. Impurities such as cottonseed hulls in the cotton yarn damaged the stability of the fabric structure. Simultaneously, the process added traditional strong alkali pretreatment steps such as cold padding, desizing, scouring, and bleaching. Strong alkali damages the cross-linking protective layer on the surface of cross-linked Tencel, leading to a significant decrease in its fibrillation performance. After 20 washes, white fuzz appeared on the fabric surface, ultimately resulting in a whitening and grade reduction due to fibrillation. Furthermore, the added strong alkali treatment and multiple chemical finishing processes easily promote formaldehyde generation, far exceeding the formaldehyde content standard of the examples. Moreover, the multiple strong alkali and high-temperature chemical treatments altered the softness of the fabric fibers, resulting in a stiffer feel. In Comparative Example 1, the dyeing and finishing process increased to eight steps. These redundant steps not only increased the probability of fiber damage by chemicals and high temperatures but also increased the difficulty of quality control during production, further amplifying problems such as fibrillation and hand feel.

[0041] In Comparative Example 2, ordinary raw cotton yarn was used for the weft yarn, instead of fluorescent-free white cotton yarn. Impurities and cottonseed hulls in the ordinary cotton yarn not only resulted in insufficient fabric structural stability and white fuzz on the fabric surface after washing, but also directly caused cottonseed hull defects in the fabric's appearance. Simultaneously, it affected the uniform adhesion of dye, leading to insufficient color depth, ultimately resulting in a downgrade due to whitish fibrillation and cottonseed hull defects. Ordinary raw cotton yarn itself is prone to formaldehyde residue during processing, resulting in a formaldehyde content far higher than in the example. Impurities at the raw material level affected the smoothness between fibers, and there was no optimization of softening processes for ordinary cotton yarn. Compared to the "radial cross-linked Tencel + weft fluorescent-free white cotton yarn" combination in the example, the fabric felt stiffer.

[0042] Comparative Example 3's process adds multiple redundant chemical finishing steps, including cold piling, scouring, bleaching, wrinkle-free treatment, and baking. The use of large amounts of chemical agents and the high-temperature baking process significantly promotes formaldehyde generation, resulting in the highest formaldehyde content. On the one hand, the newly added high-temperature and high-pressure processes such as wrinkle-free treatment, baking, and baking wash alter the softness of the fibers, destroying the natural feel of the fabric. On the other hand, the cumulative effect of multiple processes offsets the softening effect, ultimately resulting in a stiffer feel. Although Comparative Example 3 compensates for the raw material and fibrillation issues through a complex process, achieving the required fibrillation effect and first-class appearance after 20 washes, the 11 dyeing and finishing processes significantly increase production time, energy consumption, and pollutant emissions. This not only increases production costs but also violates the concept of green production. Furthermore, the over-processing directly leads to excessive formaldehyde levels and poor feel, rendering it unsuitable for industrial application.

Claims

1. A short-process production method for improving the fibrillation of cross-linked Tencel and cotton interwoven dyeing and printing dark-colored fabrics, characterized in that, The process includes the following steps: weaving → greige fabric washing → dyeing → stretching → super softness; among which, the weaving process: cross-linked Tencel is used in the radial direction and non-fluorescent white cotton yarn is used in the weft direction; the stretching process: color fixing agent ECO 15-20g / L, penetrant 1-2g / L, two dips and two nips, machine speed 50-70m / min.

2. The short-process production method for improving the fibrillation of cross-linked Tencel and cotton interwoven dyeing of dark-colored fabrics as described in claim 1, characterized in that, The fabric washing process is as follows: penetrant 1-2g / L, wide-temperature α desizing enzyme 1-3g / L, chelating agent 4-10g / L, degreasing agent 1-4g / L, one dip and one roll, roll-off rate 90-100%, machine speed 30-40m / min, material tank temperature 40-50℃, steaming box temperature 95-100℃, washing tank temperature 90-98℃, washing tank tension 1-3bar.

3. The short-process production method for improving the fibrillation of cross-linked Tencel and cotton interwoven dyeing of dark-colored fabrics as described in claim 2, characterized in that, In the fabric washing process, the penetrant is ZFC-L, the wide-temperature α desizing enzyme is DS-HT, the chelating agent is RED, and the degreasing agent is TF-109H.

4. The short-process production method for improving the fibrillation of cross-linked Tencel and cotton interwoven dyeing and printing dark fabrics as described in claim 1, characterized in that, The dyeing process is as follows: reactive dye-black BLACK CED 33.33g / L, reactive dye-red RS-B 4g / L, reactive dye-yellow YS-3R 10.465g / L, penetrant 1-2g / L, liquid alkali 5-10g / L, alkali substitute 20-40g / L, soaping agent 4-8g / L, tank temperature 26-30℃, one dip and one roll, machine speed 10-20m / min, and constant temperature chamber 26℃ for 20-24h.

5. The short-process production method for improving the fibrillation of cross-linked Tencel and cotton interwoven dyeing and printing dark fabrics as described in claim 4, characterized in that, In the dyeing process, the penetrant is ZFC-L, the liquid alkali is caustic soda, the substitute alkali is WG, and the soaping agent is WO-N.

6. The short-process production method for improving the fibrillation of cross-linked Tencel and cotton interwoven dyeing of dark-colored fabrics as described in claim 1, characterized in that, The ultra-softening process includes: softener 2-3g / L, penetrant 1-2g / L, color-fixing agent 1.5-2g / L, upper air volume 70-75%, lower air volume 50-60%, exhaust air volume 70-75%, reverse time 3s, pause 1.5s, and vehicle speed 10-15m / min.

7. The short-process production method for improving the fibrillation of cross-linked Tencel and cotton interwoven dyeing and printing dark fabrics as described in claim 6, characterized in that, In the ultra-softening process, the softener is AVO NEW, the penetrant is ZFC-L, and the color-fixing agent is ECO.

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