阅读说明：本技术 一种含有竹浆莱赛尔纤维的柔软毛巾织物及其生产工艺 (Soft towel fabric containing bamboo pulp lyocell fiber and production process thereof ) 是由 王红星 于 2020-11-24 设计创作，主要内容包括：本发明涉及纺织技术领域,尤其涉及一种含有竹浆莱赛尔纤维的柔软毛巾织物及其生产工艺。该毛巾织物选用竹浆莱赛尔纤维与棉纤维混纺的柔软纱线作为地经,或同时作为地经和毛圈纱,并在生产工艺中采用特定的染整工艺,最终获得的毛巾织物不仅具有常规毛巾的使用性能,且能够实现安全抗菌和持久抗菌。(The invention relates to the technical field of spinning, in particular to a soft towel fabric containing bamboo pulp lyocell fiber and a production process thereof. The towel fabric selects the soft yarn blended by the bamboo pulp lyocell fiber and the cotton fiber as the ground warp, or simultaneously serves as the ground warp and the terry yarn, and a specific dyeing and finishing process is adopted in the production process, so that the finally obtained towel fabric not only has the service performance of a conventional towel, but also can realize safe antibiosis and lasting antibiosis.)

1. The soft towel fabric containing the bamboo pulp lyocell fiber is characterized in that the terry yarn or the terry yarn and the ground warp yarn are blended yarns of the bamboo pulp lyocell fiber and the cotton fiber, and the blended yarns comprise 30-70wt% of the bamboo pulp lyocell fiber and the balance of the cotton fiber.

2. The soft terry towel fabric of claim 1, further comprising bamboo pulp lyocell fibers, wherein the terry yarn count has a metric twist multiplier of 300 or less; the specification of the bamboo pulp lyocell fiber is 1.0dtex to 2.5dtex, and the length is 32 mm to 38 mm.

3. The soft terry towel fabric of claim 2, containing bamboo pulp lyocell fibers, wherein the terry yarn count has a metric twist multiplier of 270 or less; the specification of the bamboo pulp lyocell fiber is 1.3dtex-1.7dtex, and the length is 38 mm.

4. A soft terry towel containing bamboo pulp lyocell fibre according to claim 1, characterized in that the length of the cotton fibre body is not less than 28 mm.

5. The process for producing a soft terry towel containing bamboo pulp lyocell fiber as claimed in claim 1, characterized by comprising the steps of:

1) preparing blended yarns: carding cotton strips after opening the bamboo pulp lyocell fibers and spinning cotton strips after carding cotton strips into blended yarns after three drawing, roving and spinning processes, wherein the bamboo pulp lyocell fibers account for 30-70wt% of the blended yarns, the rest are cotton fibers, and the twist coefficient of the yarns is below 300;

2) preparing grey cloth: weaving to obtain towel fabric grey cloth by taking the blended yarns in the step 1) as terry yarns or simultaneously as ground yarns and terry yarns and other yarns without requirements;

3) the dyeing and finishing process comprises the following steps: desizing, scouring bleaching, deoxidizing, dyeing, soaping, polishing, softening finishing or desizing, scouring bleaching, deoxidizing, soaping, polishing and softening finishing.

6. The process for producing a soft terry towel fabric containing bamboo pulp lyocell fibers as claimed in claim 5, wherein the loop yarn of step 2) is a single yarn or a plied yarn having a yarn count in the range of 10s to 60 s; the ground warp density is controlled as follows: 123-190 roots/10 cm; the weft density is controlled to be 150-220 pieces/10 cm; the length of the woven loop is controlled to be 0.85-1.4 cm.

7. The process for producing a soft terry towel fabric containing bamboo pulp lyocell fiber as claimed in claim 6, wherein the loop yarn of step 2) is a single yarn or a plied yarn having a yarn count in the range of 12s to 21 s; the ground warp density is controlled as follows: 123-142 roots/10 cm; the weft density is controlled to be 170-190 pieces/10 cm; the length of the woven terry is controlled between 0.95cm and 1.2 cm.

8. The process for producing a soft terry towel containing bamboo pulp lyocell fiber as claimed in claim 5, wherein the scouring bleaching in step 3) has a pH of 10.5-11.5; the deoxidation treatment comprises the following steps: after boiling, bleaching, carrying out hot washing at 80 ℃, adjusting the pH value to 6.5-7.5, and then carrying out deoxidation treatment for 10-30min under the condition of 0.001-0.01g/L of deoxyenzyme; soaping treatment process: selecting a soaping process at 80 ℃, wherein the soaping agent is a low-temperature soaping agent; the polishing treatment adopts 80 percent glacial acetic acid to adjust the pH value to be 4.0 to 6.5, and 0.05 to 0.5 percent of biological enzyme special for the lyocell fiber is used for polishing treatment; softening and finishing: adding softening agent, adjusting pH value of the fabric to 4.5-6.5 with citric acid, and treating at 30 deg.C for 30 min.

9. Process for the production of a soft terry towel with bamboo pulp lyocell fibre according to claim 8, characterized in that the lyocell fibre specific bio-enzyme is preferably the cellobiase of Novoxil.

10. The process for producing a soft terry towel containing bamboo pulp lyocell fibers as claimed in claim 5, wherein the dyeing is carried out under weak alkaline conditions of pH 10-13.

Technical Field

The invention relates to the technical field of spinning, in particular to a soft towel fabric containing bamboo pulp lyocell fiber and a production process thereof.

Background

Towel products are daily textiles with large quantity and wide range. On one hand, the use frequency is high, and the product is often placed in environments with high humidity such as a bathroom and the like, so that bacteria are easy to breed. On the other hand, in hot summer, the towel is often used as a sweat wiping article, bacteria are more easily bred in a sweat environment with high temperature and high humidity and abundant human body dander and the like, and the towel usually has unpleasant taste within one day. Therefore, the towel requires antibacterial properties to prevent the transfer of bacteria among various users and the occurrence of unpleasant tastes.

The optimal antibacterial towel should satisfy the following conditions: (1) the normal performance of the towel is not affected, and the use performance of the towel can be even improved. The method has no influence on the common requirements of towel fabrics such as plump suede, soft hand feeling, fluffy moisture absorption and the like; (2) is safe and antibacterial. The antibacterial agent has good antibacterial effect in an environment where bacteria are massively propagated, namely, under the conditions of humidity, high temperature, rich nutrient substances and the like; the antibacterial ingredients can not be dissociated to the skin in the using process, so that the bacterial colony balance of the skin is disturbed; (3) and (4) lasting antibiosis. After washing for 50 times, the antibacterial property is still good.

Disclosure of Invention

In order to achieve the technical effects, the invention provides the soft towel fabric containing the bamboo pulp lyocell fibers and the production process thereof, the towel fabric selects the soft yarn blended by the bamboo pulp lyocell fibers and the cotton fibers as ground warp or simultaneously as ground warp and terry yarn, and a specific dyeing and finishing process is adopted in the production process, so that the finally obtained towel fabric not only has the service performance of a conventional towel, but also can realize safe antibiosis and lasting antibiosis.

The technical scheme of the invention is as follows:

firstly, the terry yarn or the terry yarn and the ground warp yarn of the soft towel fabric containing the bamboo pulp lyocell fiber are selected from the blended yarn of the bamboo pulp lyocell fiber and the cotton fiber, and the blended yarn contains 30-70wt% of the bamboo pulp lyocell fiber and the balance of the cotton fiber.

The yarn count of the loop yarn is 300 or less, and more preferably 270 or less.

The specification of the bamboo pulp lyocell fiber is 1.0dtex-2.5dtex, and the length is 32-38 mm; further preferably 1.3dtex-1.7dtex, 38 mm. The length of the cotton fiber main body is not less than 28 mm.

The production process of the soft towel fabric containing the bamboo pulp lyocell fiber comprises the following steps:

1) preparing blended yarns: the bamboo pulp lyocell fiber is opened and then carded into strips, and the cotton strips after carding are spun into blended yarns after three processes of drawing, roving, spinning and the like, wherein the bamboo pulp lyocell fiber accounts for 30-70wt% of the blended yarns, the rest is cotton fiber, and the twist coefficient of the yarns is less than 300, and more preferably less than 270.

2) Preparing grey cloth: weaving to obtain towel fabric grey cloth by taking the blended yarns in the step 1) as terry yarns or simultaneously as ground yarns and terry yarns and other yarns without requirements;

the loop yarn count is in the range of 10s to 60s, and more preferably 12s to 21 s.

The ground warp density is controlled as follows: 123-190 roots/10 cm, preferably 123-142 roots/10 cm; the weft density is controlled to be 150-220pcs/dm, and more preferably 170-190 pcs/dm;

the length of the woven loop is controlled to be 0.85-1.4cm, and further preferable is: 0.95cm-1.2 cm.

3) The dyeing and finishing process comprises the following steps: desizing, scouring bleaching, deoxidizing, dyeing, soaping, polishing, softening finishing or desizing, scouring bleaching, deoxidizing, soaping, polishing and softening finishing.

Wherein, the desizing adopts amylase to desize,

the scouring bleaching process comprises the following steps: under the condition of weak alkali and low temperature, the scouring and bleaching are carried out by adopting auxiliary agents such as chelating agent, hydrogen peroxide, soda ash, low-temperature refining agent, high-concentration refining agent and the like, the pH value is 10.5-11.5, and the chelating agent is DM-8108.

The specific technological parameters of the scouring and bleaching are as follows: 3-12 g/L of 27.5% hydrogen peroxide, 2-5g/L of sodium carbonate, and low-temperature refining agent TF-179: 2.5g/L, refining agent JN-98: 1-2.0g/L, 80-85 ℃ for 90 min.

The deoxidation treatment comprises the following steps: after boiling and bleaching, the mixture is subjected to 80 ℃ heat washing, the pH value is adjusted to 6.5-7.5, and then the mixture is subjected to deoxidation treatment for 10-30min under the condition of 0.001-0.01g/L of deoxyenzyme. The deoxygenase is preferably SDcatalase.

The dyeing is carried out under a weakly alkaline condition of pH 10-13.

The soaping treatment process comprises the following steps: the soaping process is carried out at 80 deg.C, and the soaping agent is low-temperature soaping agent with dosage of 0.5-1.5g/L and treatment time of 10-15 min. The low-temperature soaping agent is preferably low-temperature soaping agent SZ-4861.

Polishing, namely adjusting the pH value to be 4.0-6.5 by adopting 80% glacial acetic acid, and polishing by using 0.05-0.5% of biological enzyme special for the lyocell fiber; the specific biological enzyme for the lyocell fibers is preferably the fiber-optimizing enzyme RFiberrilifeRFusion of Novoxil.

Softening and finishing: adding softening agent, adjusting pH value of the fabric to 4.5-6.5 with citric acid, and treating at 30 deg.C for 30 min.

The invention has the beneficial effects that:

the bamboo pulp lyocell fiber is used in the field of towel fabrics for the first time, natural antibacterial and bacteriostatic properties of the bamboo pulp lyocell fiber are utilized, specific dyeing and finishing process treatment is combined, the treatment temperature is not higher than 85 ℃ in the whole process, the related alkaline treatment processes all adopt weak alkaline conditions, specific reagents such as a biological enzyme special for the lyocell fiber are adopted for polishing, and the bacteriostatic activity of the bamboo pulp lyocell fiber is kept to the maximum extent on the basis of the properties of the towel fabrics under the limitation of other condition parameters. Finally, the towel fabric is soft in hand feeling, excellent in water absorption and very low in feather falling and molting rate, is washed according to the washing method of AATCC135, the molting rate after 5 times of washing is less than 5 per thousand, and after 50 times of washing, the inhibition rate of the towel fabric on gram-positive bacteria, gram-negative bacteria and fungi, particularly on escherichia coli and staphylococcus aureus can still reach more than 80%. In conclusion, the soft towel fabric containing the bamboo pulp lyocell fiber is subjected to post-treatment without adding an antibacterial agent, and has high antibacterial rate, good stability and excellent antibacterial performance.

Detailed Description

The present invention will be described in further detail with reference to the following examples, but it should not be construed that the scope of the above subject matter is limited to the following examples. All the technologies realized based on the above contents of the present invention belong to the scope of the present invention. Except as otherwise noted, the following examples were carried out using conventional techniques.

Example 1

Taking weaving as an example: the method for producing the novel terry fabric by adopting the weaving process comprises the following steps: selecting fiber raw materials, spinning, spooling, warping, slashing, weaving, dyeing, finishing, warehousing and the like.

1) Spinning: the following specifications of bamboo pulp lyocell and cotton fiber are selected: specification of bamboo pulp lyocell fiber: 1.33dtex × 38mm, cotton fiber main body length: 28mm and above; carding cotton into strips after opening the bamboo pulp lyocell fibers, and spinning cotton strips after carding cotton into blended yarns after three working procedures of drawing, roving, spinning and the like, wherein the bamboo pulp lyocell fibers account for 30wt%, the cotton fibers account for 70wt%, and the yarn count in the blended yarns is as follows: 12s, twist multiplier: 270.

2) preparing grey cloth: taking 12s ring spun cotton yarn as ground warp, 16s ring spun cotton yarn as weft, and taking the blended yarn 12s soft twist yarn in the step 1) as terry yarn according to the following parameters: ground warp density: 143 pieces/10 cm, warp density: 143 pieces/10 cm, weft density: 170 pieces/10 cm and the loop length is 1.2cm, and the towel grey cloth is obtained after weaving.

3) A dyeing and finishing process: the fabric is treated according to the following flow and process:

(1) desizing: alpha-amylase: 1g/L, 70 ℃ x 20min

(2) Boiling and bleaching: hydrogen peroxide (27.5%): 3g/L-12g/L, soda: 2-5g/L, low-temperature refining agent TF-179: 2.5g/L, refining agent JN-98: 1-2.0g/L, 80-85 ℃ multiplied by 90 min;

(3) and (3) deoxidation treatment: after scouring and bleaching, carrying out hot washing at 80 ℃ and warm washing at 50 ℃, then adjusting the pH value to 6.5-7.5, and then carrying out deoxidation treatment under the condition of 0.001-0.01g/L of deoxidized enzyme;

(4) dyeing under a weak alkaline condition with pH of 10-13;

(5) hot washing and low-temperature soaping: hot washing at 80 ℃ for 10min, soaping at 80 ℃ for 10min, and the soaping agent is a low-temperature soaping agent: the low-temperature soaping agent SZ-4861 is purchased from Shanghai Shencheng chemical engineering science and technology Limited;

(6) polishing treatment: adjusting pH value to 4.0-6.5 with 80% glacial acetic acid, and polishing fabric with 0.05-0.5% regenerated cellulose fiber special biological enzyme (RFiberlifeRFusion) for 40-60 min;

(7) softening and finishing: adding softening agent DT530 (3.5 g/L), adjusting the pH value of the fabric to 6.0 by using citric acid, and treating the fabric at 30 ℃ for 30 min;

(8) dewatering, scutching, drying in a loose mode and sewing to obtain the finished product.

The bamboo pulp Lyocell soft towel obtained by the method is fluffy and soft in hand feeling, the dehairing rate after 5 times of washing is less than 5 per thousand, the inhibition rate of 50 times of washing on staphylococcus aureus can reach more than 95%, and the inhibition rate on escherichia coli can reach more than 80%.

Example 2

Taking weaving as an example: the method for producing the novel terry fabric by adopting the weaving process comprises the following steps: selecting fiber raw materials, spinning, spooling, warping, slashing, weaving, dyeing, finishing, warehousing and the like.

1) Spinning: the following specifications of bamboo pulp lyocell and cotton fiber are selected: specification of bamboo pulp lyocell fiber: 1.33dtex × 38mm, cotton fiber main body length: 28mm and above; carding cotton into strips after opening the bamboo pulp lyocell fibers, and spinning cotton strips after carding cotton into blended yarns after three working procedures of drawing, roving, spinning and the like, wherein the bamboo pulp lyocell fibers account for 70wt%, the cotton fibers account for 30wt% and the yarn count in the blended yarns: 21s/2, single yarn twist factor: 220.

2) preparing grey cloth: taking 12s ring spun cotton yarn as ground warp, 16s ring spun cotton yarn as weft, and taking the 21s/2 soft twist yarn of the blended yarn in the step 1) as terry yarn according to the following parameters: ground warp density: 143 pieces/10 cm, warp density: 143 pieces/10 cm, weft density: 170 pieces/10 cm, the height of the wool is 1.2cm, and the towel grey cloth is obtained after weaving.

3) A dyeing and finishing process: the fabric is treated according to the following flow and process:

(1) desizing: alpha-amylase: 1g/L, 70 ℃ x 20min

(2) Boiling and bleaching: hydrogen peroxide (27.5%): 3g/L-12g/L, soda: 2-5g/L, low-temperature refining agent TF-179: 2.5g/L, refining agent JN-98: 1-2.0g/L, 80-85 ℃ multiplied by 90 min;

(3) and (3) deoxidation treatment: after scouring and bleaching, carrying out hot washing at 80 ℃ and warm washing at 50 ℃, then adjusting the pH value to 6.5-7.5, and then carrying out deoxidation treatment under the condition of 0.001-0.01g/L of deoxidized enzyme;

(4) dyeing under a weak alkaline condition with pH of 10-13;

(5) hot washing and low-temperature soaping: hot washing at 80 ℃ for 10min, soaping at 80 ℃ for 10min, and the soaping agent is a low-temperature soaping agent: the low-temperature soaping agent SZ-4861 is purchased from Shanghai Shencheng chemical engineering science and technology Limited;

(6) polishing treatment: adjusting pH value to 4.0-6.5 with 80% glacial acetic acid, and polishing fabric with 0.05-0.5% regenerated cellulose fiber special biological enzyme (RFiberlifeRFusion) for 40-60 min;

(7) softening and finishing: adding softening agent DT530 (3.5 g/L), adjusting the pH value of the fabric to 6.0 by using citric acid, and treating the fabric at 30 ℃ for 30 min;

(8) dewatering, scutching, drying in a loose mode and sewing to obtain the finished product.

The bamboo pulp Lyocell soft towel obtained by the method is fluffy and soft in hand feeling, the dehairing rate after 5 times of washing is less than 3 per thousand, the inhibition rate of 50 times of washing on staphylococcus aureus can reach more than 99%, and the inhibition rate on escherichia coli can reach more than 90%.