Blended fabric and preparation method thereof

Abstract

The invention relates to a blended fabric and a preparation method thereof. The blended fabric comprises the following components in parts by weight: 65-70 parts of polyester fibers, 10-15 parts of combed cotton, 15-20 parts of regenerated cellulose fibers, 10-20 parts of an antibacterial agent and 1-2 parts of an antistatic agent, wherein the dilution rate of the polyester fiber is greater than 8%; the fiber length of the combed cotton is larger than or equal to 35 mm, the combed short fiber rate is smaller than or equal to 8%, and the micronaire value is 3.7-4.2; the fibrillation index of the regenerated cellulose fiber is less than or equal to 3. According to the blended fabric provided by the embodiment of the invention, based on porous structure cooperation of the polyester fibers and the regenerated cellulose fibers, the moisture diffusion speed of the fabric is much higher than that of pure cotton; the moisture-absorbing and quick-drying leading function is achieved through the high proportion of the polyester fibers, meanwhile, the skin-friendly performance is improved through the regenerated cellulose fibers, the smooth surfaces of the combed cotton long fibers and the regenerated cellulose fibers form a framework-lubricating structure, and the spinning end breakage rate is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of textiles, and particularly to a blended fabric and a preparation method thereof. Background Art

[0002] With the increasing demands of consumers for the quality and functionality of textiles, the market demand for high-performance and multi-functional blended fabrics is growing continuously. COOLBST is a fiber with excellent moisture absorption and sweat wicking properties. Lyocell is famous for its soft drapability and good breathability, while fine cotton has won wide recognition for its durability and comfort. By combining the advantages of these three fibers, the development of COOLBST / fine cotton / Lyocell blended fabric aims to meet the urgent market demand for high-quality and multi-functional textiles.

[0003] Traditional pure cotton fabrics have problems such as insufficient moisture absorption and quick drying, easy pilling, and poor wrinkle resistance; single functional fibers (such as ordinary polyester) have moisture absorption and quick drying properties, but poor skin-friendliness and insufficient breathability; the fibrillation problem of Lyocell fibers causes the fabric to be prone to fuzzing, which needs to be solved by special processes or modification treatments. Deficiencies of existing solutions: Most existing blending technologies adopt binary combinations (such as cotton / polyester, cotton / Lyocell), but it is difficult to take into account multiple properties such as moisture absorption and quick drying, softness and breathability, and durability; the high proportion of Lyocell fibers (such as more than 50%) easily causes the fabric to be prone to deformation and insufficient strength.

[0004] Therefore, it can be seen that the above-mentioned existing blended fabrics are obviously still inconvenient and defective in methods, manufacturing methods, processing methods, and use, and urgently need to be further improved. In order to solve the problems existing in the blended fabric, relevant manufacturers have tried their best to find solutions, but no applicable design has been developed for a long time. Moreover, general methods, manufacturing methods, processing methods, and blended fabrics do not have appropriate methods, manufacturing methods, processing methods, and structures to solve the above problems, which is obviously a problem that relevant industries are eager to solve.

[0005] In view of the defects of the above-mentioned existing blended fabrics, based on the rich practical experience and professional knowledge in the design and manufacture of such products for many years, and in combination with the application of theory, the inventor actively conducts research and innovation, aiming to create a new blended fabric that can improve the general existing blended fabrics and make them more practical. After continuous research, design, repeated trial production and improvement, the present invention with practical value has finally been created. Summary of the Invention

[0006] The main object of the present invention is to overcome the defects existing in the existing blended fabrics, and to provide a new blended fabric. The technical problem to be solved is to make it cooperate with the porous structure of the regenerated cellulose fiber, and the moisture diffusion rate of the fabric is much higher than that of pure cotton; the moisture absorption and quick-drying dominant function is realized by a high proportion of polyester fiber, and at the same time, the regenerated cellulose fiber is used to improve the skin-friendly property. The smooth surfaces of the combed cotton long fibers and the regenerated cellulose fiber form a "skeleton-lubrication" structure, reducing the spinning breakage rate, so that it is more suitable for practical use and has industrial utilization value.

[0007] An embodiment of the present invention provides a blended fabric, comprising the following components in parts by weight:

[0008] 65 to 70 parts of polyester fiber, 10 to 15 parts of combed cotton, 15 to 20 parts of regenerated cellulose fiber, 10 to 20 parts of antibacterial agent, and 1 to 2 parts of antistatic agent;

[0009] Among them, the dilution rate of the polyester fiber is greater than 8%; the fiber length of the combed cotton is ≥35 mm, the short fiber rate after combing is ≤8%, and the micronaire value is 3.7 to 4.2; the fibrillation index of the regenerated cellulose fiber is ≤3.

[0010] In an optional embodiment, the polyester fiber includes any one of COOLBST, polyester modified fiber, and polylactic acid fiber.

[0011] In an optional embodiment, the combed cotton includes organic long-staple cotton or bamboo original fiber.

[0012] In an optional embodiment, the regenerated cellulose fiber includes lyocell fiber, Modal fiber, or cuprammonium fiber.

[0013] In an optional embodiment, the short fiber rate of the combed cotton after combing is ≤8%, and the fiber length retention rate is ≥90%.

[0014] On the other hand, a method for preparing a blended fabric is provided, comprising:

[0015] Performing a modification treatment on the polyester fiber to make the dilution rate of the polyester fiber greater than 8%;

[0016] Performing a bamboo original fiber enzyme treatment on the combed cotton;

[0017] Performing an anti-fibrillation treatment on the regenerated cellulose fiber;

[0018] Sliver blending the treated polyester fiber, combed cotton, and regenerated cellulose fiber to obtain the blended fabric.

[0019] In an alternative embodiment, when the polyester fiber is COOLBST, the COOLBST is padded with a nano-SiO2 dispersion liquid (concentration 5%-8%), the liquor pickup rate is 70%-80%, baked at 150°C, and baked for 3 minutes for modification treatment;

[0020] When the polyester fiber is a polylactic acid fiber, the polylactic acid (PLA) fiber is blended with poly(butylene adipate-co-terephthalate) (PBAT), and the melt spinning temperature is 210°C to 220°C for modification treatment.

[0021] In an alternative embodiment, the mixing ratio of the polylactic acid (PLA) fiber to the poly(butylene adipate-co-terephthalate) (PBAT) is 4 to 5:1.

[0022] In an alternative embodiment, the steps of treating combed cotton with bamboo fiber enzyme include:

[0023] Treat the combed cotton in a mixed solution of laccase and 2,2,6,6-tetramethylpiperidine-1-oxyl radical, the pH of the treatment is 4.0 - 4.2, the treatment temperature is 50°C - 55°C, the treatment time is 3 - 4 hours, and alkali boiling is carried out at a temperature of 100°C - 120°C for 1 - 2 hours.

[0024] In an alternative embodiment, the mixing ratio of the combed cotton to the mixed solution of laccase and 2,2,6,6-tetramethylpiperidine-1-oxyl radical is 1 - 2:5.

[0025] Compared with the prior art, the present invention has obvious advantages and beneficial effects. From the above technical solutions, in order to achieve the aforementioned invention purpose, the main technical content of the present invention is as follows:

[0026] The present invention provides a blended fabric and a preparation method thereof, which include the following components in parts by weight: 65 parts to 70 parts of polyester fiber, 10 parts to 15 parts of combed cotton, 15 parts to 20 parts of regenerated cellulose fiber, 10 parts to 20 parts of antibacterial agent, and 1 part to 2 parts of antistatic agent; wherein, the dilution rate of the polyester fiber is greater than 8%; the fiber length of the combed cotton is ≥35mm, the short fiber rate after combing is ≤8%, and the micronaire value is 3.7 - 4.2; the fibrillation index of the regenerated cellulose fiber is ≤3. As can be seen from the above, the blended fabric provided by the embodiments of the present invention is based on the synergy of the porous structures of the polyester fiber and the regenerated cellulose fiber, and the moisture diffusion rate of the fabric is much higher than that of pure cotton; the moisture absorption and quick-drying dominant function is realized through the high proportion of the polyester fiber, and at the same time, the skin-friendly property is improved by the regenerated cellulose fiber. The smooth surfaces of the long fibers of the combed cotton and the regenerated cellulose fiber form a "skeleton-lubrication" structure, reducing the spinning breakage rate.

[0027] By means of the above technical solutions, the blended fabric and the preparation method thereof of the present invention at least have the following advantages:

[0028] The blended fabric provided by the embodiment of the present invention is based on the synergy of the porous structures of polyester fiber and regenerated cellulose fiber, and the moisture diffusion rate of the fabric is much higher than that of pure cotton; the moisture absorption and quick-drying dominant function is realized through a high proportion of polyester fiber, while the skin-friendly property is improved by regenerated cellulose fiber, and the smooth surfaces of combed cotton long fiber and regenerated cellulose fiber form a "skeleton-lubrication" structure, reducing the spinning breakage rate.

[0029] In summary, for the special blended fabric and its preparation method of the present invention, in synergy with the porous structure of regenerated cellulose fiber, the moisture diffusion rate of the fabric is much higher than that of pure cotton; the moisture absorption and quick-drying dominant function is realized through a high proportion of polyester fiber, while the skin-friendly property is improved by regenerated cellulose fiber, and the smooth surfaces of combed cotton long fiber and regenerated cellulose fiber form a "skeleton-lubrication" structure, reducing the spinning breakage rate. It has the above-mentioned many advantages and practical values, and there is no similar design publicly reported or used in the same type of blended fabric, which is indeed innovative. It has great improvements both in (method, manufacturing method, processing method) and function, has great progress in technology, and produces good and practical effects. Moreover, it has multiple enhanced effects compared with the existing blended fabric, so it is more suitable for practical use and has wide industrial utilization value. It is truly a novel, progressive and practical new design.

[0030] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following takes the preferred embodiment of the present invention and combines with the attached drawings to elaborate in detail as follows.

[0031] The specific blended fabric of the present invention is given in detail by the following embodiments and their attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic flow chart of the preparation method of the blended fabric provided by the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following combines with the attached drawings and the preferred embodiment to elaborate in detail on the specific implementation manner, method, manufacturing method, processing method, steps, structure, features and their effects of the blended fabric according to the present invention as follows.

[0034] The embodiment of the present invention provides a blended fabric, including the following components in parts by weight:

[0035] 65 parts to 70 parts of polyester fiber, 10 parts to 15 parts of combed cotton, 15 parts to 20 parts of regenerated cellulose fiber, 10 parts to 20 parts of antibacterial agent, 1 part to 2 parts of antistatic agent;

[0036] Among them, the dilution rate of the polyester fiber is greater than 8%; the fiber length of the combed cotton is ≥35 mm, the short fiber rate after combing is ≤8%, and the micronaire value is 3.7 - 4.2; the fibrillation index of the regenerated cellulose fiber is ≤3.

[0037] The blended fabric provided by the embodiment of the present invention is based on the synergy of the porous structures of the polyester fiber and the regenerated cellulose fiber, and the moisture diffusion rate of the fabric is much higher than that of pure cotton; the polyester fiber with a high proportion realizes the dominant function of moisture absorption and quick drying, and at the same time, the regenerated cellulose fiber is used to improve the skin-friendly property. The smooth surfaces of the long fibers of the combed cotton and the regenerated cellulose fiber form a "skeleton-lubrication" structure, reducing the spinning breakage rate.

[0038] The following will further explain and describe the blended fabric provided by the embodiment of the present invention through optional embodiments.

[0039] The blended fabric provided by the embodiment of the present invention may include the following components in parts by weight: 65 parts, 66 parts, 67 parts, 68 parts, 69 parts or 70 parts of polyester fiber; 10 parts, 11 parts, 12 parts, 13 parts, 14 parts or 15 parts of combed cotton, and 15 parts, 16 parts, 17 parts, 18 parts, 19 parts or 20 parts of regenerated cellulose fiber; 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts or 20 parts of antibacterial agent; 1 part or 2 parts of antistatic agent.

[0040] The antistatic agent in the embodiment of the present invention may be potassium phosphate ester. By adding the antistatic agent, the static effect of the blended fabric can be reduced.

[0041] Among them, the dilution rate of the polyester fiber is greater than 8%; the fiber length of the combed cotton is ≥35 mm, the short fiber rate after combing is ≤8%, and the micronaire value is 3.7 - 4.2; the fibrillation index of the regenerated cellulose fiber is ≤3.

[0042] The fiber length of the combed cotton provided by the embodiment of the present invention is ≥35 mm, the short fiber rate after combing is ≤8%, and the micronaire value is 3.7 - 4.2. This combed cotton has good toughness and elasticity. At the same time, the low proportion of the regenerated cellulose fiber (the proportion in all components is less than 15%) avoids the fibrillation risk and retains its glossiness (whiteness ≥80%, Hunter Lab value) 67.

[0043] In an optional embodiment, the polyester fiber includes any one of COOLBST, polyester modified fiber, and polylactic acid fiber.

[0044] The polyester fiber in the embodiments of the present invention can be COOLBST. The moisture absorption rate of COOLBST is ≥8%, the wicking height is ≥120 mm, and the breaking strength is ≥4.5 cN / dtex. The polylactic acid (PLA) fiber is a bio-based material with slightly lower moisture absorption (moisture absorption rate ≥5%), but it is biodegradable and can meet the environmental protection requirements.

[0045] In an alternative embodiment, the combed cotton includes organic long-staple cotton or bamboo fiber. The fiber length of organic long-staple cotton is ≥38 mm, and the Micronaire value is between 3.5 and 4.0, and the environmental protection can be improved by pesticide-free planting.

[0046] It should be noted that Micronaire is the transliteration of the English word Micronaire. The Micronaire value is a comprehensive index reflecting the fineness and maturity of cotton fibers, and it is one of the important internal quality indexes of cotton fibers, which is closely related to the use value of cotton fibers. The Micronaire value is divided into three grades: A, B, and C, and grade B is the standard grade. The value range of grade A is 3.7 - 4.2, and the quality is the best; the value range of grade B is 3.5 - 3.6 and 4.3 - 4.9; the value range of grade C is 3.4 and below and 5.0 and above, and the quality is the worst.

[0047] In an alternative embodiment, the regenerated cellulose fiber includes Lyocell fiber or Modal fiber or cupro fiber.

[0048] Preferably, the regenerated cellulose fiber can be Lyocell fiber. The fibrillation index of Lyocell fiber is ≤3, the dry strength is ≥3.8 cN / dtex, and the wet strength is ≥2.5 cN / dtex. Using Lyocell fiber with the above parameters can increase the smoothness of the blended fabric surface by 20% and reduce the fibrillation risk by 50%.

[0049] Exemplarily, the regenerated cellulose fiber can be cupro fiber. The surface smoothness of cupro fiber is better than that of Lyocell, and the air permeability is ≥480 mm / s, which can make the blended fabric have strong air permeability.

[0050] In an alternative embodiment, the short fiber rate of the combed cotton after combing is ≤8%, and the fiber length retention rate is ≥90%.

[0051] In the embodiments of the present invention, the combed cotton can also be organic long-staple cotton. The fiber length of organic long-staple cotton is ≥38 mm, and the Micronaire value is between 3.5 and 4.0, which can make the blended fabric have very high quality.

[0052] The combed cotton can also be bamboo fiber. Bamboo fiber has good natural antibacterial properties (antibacterial rate ≥70%), which can improve the antibacterial property of the blended fabric.

[0053] In an alternative embodiment, embodiments of the present invention may also add carbon nanotubes according to the needs of the blended fabric to enhance the conductivity of the blended fabric, and such a blended fabric can be applied to the category of smart textiles.

[0054] In an alternative embodiment, embodiments of the present invention may also add titanium dioxide according to the needs of the blended fabric to replace the traditional matting agent. Adding 1%-2% can reduce the fiber luster and at the same time reduce equipment wear.

[0055] In an alternative embodiment, the antibacterial agent provided by embodiments of the present invention may be a silver ion antibacterial agent. Among them, the addition amount of the silver ion antibacterial agent may be 0.3%-0.5% of the total mass of the blended fabric. By adding the antibacterial agent, broad-spectrum antibacterial of the blended fabric can be achieved, and the antibacterial rate can reach 99%.

[0056] The antibacterial agent provided by embodiments of the present invention may also be a chitosan coating, that is, it can be impregnated (concentration 2%-3%) in the subsequent finishing process of the blended fabric to improve the antibacterial property and skin-friendly property of the blended fabric.

[0057] The following will further explain and describe the blended fabric provided by embodiments of the present invention through specific examples.

[0058] Example 1

[0059] The blended fabric of this example includes 65 parts of polyester fiber, 10 parts of combed cotton, 15 parts of regenerated cellulose fiber, 10 parts of antibacterial agent, and 1 part of antistatic agent. Among them, the moisture absorption rate of the polyester fiber is 9%; the fiber length of the combed cotton is 45mm, the short fiber rate after combing is 8%, and the micronaire value is 3.7; the fibrillation index of the regenerated cellulose fiber is equal to 3.

[0060] Example 2

[0061] The blended fabric of this example includes 66 parts of polyester fiber, 11 parts of combed cotton, 16 parts of regenerated cellulose fiber, 11 parts of antibacterial agent, and 1 part of antistatic agent. Among them, the moisture absorption rate of the polyester fiber is 9%; the fiber length of the combed cotton is 40mm, the short fiber rate after combing is 7%, and the micronaire value is 3.7; the fibrillation index of the regenerated cellulose fiber is equal to 3.

[0062] Example 3

[0063] The blended fabric of this example includes 67 parts of polyester fiber, 15 parts of combed cotton, 16 parts of regenerated cellulose fiber, 11 parts of antibacterial agent, and 1 part of antistatic agent. Among them, the moisture absorption rate of the polyester fiber is 9%; the fiber length of the combed cotton is 45mm, the short fiber rate after combing is 8%, and the micronaire value is 3.8; the fibrillation index of the regenerated cellulose fiber is equal to 3.

[0064] Example 4

[0065] The blended fabric of this example includes 68 parts of polyester fiber, 12 parts of combed cotton, 16 parts of regenerated cellulose fiber, 13 parts of antibacterial agent, and 2 parts of antistatic agent. Among them, the moisture absorption rate of the polyester fiber is 10%; the fiber length of the combed cotton is 45 mm, the short fiber rate after combing is 8%, and the micronaire value is 4.1; the fibrillation index of the regenerated cellulose fiber is equal to 3.

[0066] Example 5

[0067] The blended fabric of this example includes 65 parts of polyester fiber, 12 parts of combed cotton, 14 parts of regenerated cellulose fiber, 15 parts of antibacterial agent, and 2 parts of antistatic agent. Among them, the moisture absorption rate of the polyester fiber is 9%; the fiber length of the combed cotton is 45 mm, the short fiber rate after combing is 8%, and the micronaire value is 3.7; the fibrillation index of the regenerated cellulose fiber is equal to 3.

[0068] Please refer to Figure 1 , on the other hand, the embodiments of the present invention provide a method for preparing a blended fabric, including: step S1, step S2, step S3, and step S4.

[0069] Step S1: Modify the polyester fiber to make the dilution rate of the polyester fiber greater than 8%.

[0070] Step S2: Treat the combed cotton with bamboo fiber enzyme.

[0071] Step S3: Perform anti-fibrillation treatment on the regenerated cellulose fiber.

[0072] Step S4: Obtain the blended fabric by drawing and blending the treated polyester fiber, combed cotton, and regenerated cellulose fiber.

[0073] Through the modification treatment, hydrophilic groups are introduced into the molecular chain of the polyester fiber to form a porous structure, improving the moisture absorption of the polyester fiber. After modification, a microporous structure is formed on the fiber surface, and the moisture absorption rate is increased to ≥8% (the moisture absorption rate of traditional polyester is only 0.4%), accelerating the evaporation of moisture.

[0074] By treating the combed cotton with bamboo fiber enzyme, laccase and alkali boiling process are used to degrade the lignin in the bamboo fiber, retaining the main structure of cellulose. After the treatment with bamboo fiber enzyme, the lignin content in the combed cotton is reduced to ≤8%, the fiber flexibility is improved, and the spinning breakage rate is reduced. Moreover, the natural antibacterial component (bamboo quinone) in the combed cotton is not damaged, and the antibacterial rate is ≥70%, reducing the dosage of post-finishing chemical additives, improving the environmental performance of the combed cotton, and replacing the traditional strong alkali degumming process with enzyme treatment, reducing the COD value of wastewater.

[0075] By subjecting regenerated cellulose fibers to fibrillation treatment and forming a crosslinking network on the fiber surface through crosslinking agents (such as laccase, 2,2,6,6 - tetramethylpiperidine - 1 - oxyl radical), fibril splitting is inhibited. After treatment, the wet strength ≥ 2.5 cN / dtex (the wet strength of untreated fibers ≤ 1.8 cN / dtex), reducing the risk of fiber breakage during processing.

[0076] Through multi - step doubling (3 steps) and compact siro - spinning technology, uniform mixing and agglomeration of fibers are achieved.

[0077] The method provided by the embodiments of the present invention breaks through the performance bottleneck of traditional blended fabrics and takes into account functionality, environmental protection, and economy through multi - component synergistic modification (hydrophilic modification of polyester, enzymatic hydrolysis and environmental protection of bamboo fibers, stabilization of regenerated fibers) and optimization of process parameters (drawing ratio of drawing frame, negative pressure of compact spinning). For example, compared with traditional polyester - cotton fabrics, the moisture absorption and quick - drying performance of the present invention is improved by 45%, the antibacterial performance reaches the medical - grade standard, and the combed waste cotton rate is reduced by 1.5 - 2 percentage points (cost savings of 10% - 15%).

[0078] In an alternative embodiment, when the polyester fiber is COOLBST, the COOLBST is impregnated with a nano - SiO2 dispersion (concentration 5% - 8%), the liquor pickup rate is 70% - 80%, baked at 150 °C for 3 min for modification treatment. Exemplarily, the concentration of the SiO2 dispersion can be 5%, 6%, 7%, or 8%. The liquor pickup rate can be 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, or 80%, etc.

[0079] When the polyester fiber is polylactic acid fiber, the polylactic acid (PLA) fiber is blended with poly(butylene adipate - co - terephthalate) (PBAT), and the melt - spinning temperature is 210 °C - 220 °C for modification treatment.

[0080] In an alternative embodiment, the mixing ratio of polylactic acid (PLA) fiber to poly(butylene adipate - co - terephthalate) (PBAT) is 4 - 5:1. Exemplarily, the mixing ratio of polylactic acid (PLA) fiber to poly(butylene adipate - co - terephthalate) (PBAT) is 4:1 or 5:1.

[0081] In an alternative embodiment, the steps of subjecting combed cotton to bamboo fiber enzyme treatment include:

[0082] The combed cotton is treated in a mixed solution of laccase and 2,2,6,6-tetramethylpiperidine-1-oxyl radical. The pH of the treatment is 4.0 - 4.2, the treatment temperature is 50°C - 55°C, the treatment time is 3 - 4 h, and it is alkali-boiled at 100°C - 120°C for 1 - 2 h. Exemplarily, the treatment environment is an acidic environment, the pH can be 4.0, 4.1 or 4.2, the treatment temperature can be 50°C, 51°C, 52°C, 53°C, 54°C or 55°C, etc., the treatment time can be 3 h or 4 h, etc., and it is alkali-boiled at 100°C, 105°C, 110°C or 120°C for 1 h or 2 h.

[0083] In an alternative embodiment, the mixing ratio of the combed cotton to the mixed solution of laccase and 2,2,6,6-tetramethylpiperidine-1-oxyl radical is 1 - 2:5. Exemplarily, the mixing ratio of the combed cotton to the mixed solution of laccase and 2,2,6,6-tetramethylpiperidine-1-oxyl radical is 1:5 or 2:5.

[0084] The above are only the preferred embodiments of the present invention, and do not impose any formal limitations on the present invention. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications within the scope of the technical solution of the present invention and make equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A blended fabric, characterized in that, It comprises the following components in parts by weight: 65 to 70 parts of polyester fiber, 10 to 15 parts of combed cotton, 15 to 20 parts of regenerated cellulose fiber, 10 to 20 parts of antibacterial agent, 1 to 2 parts of antistatic agent; Among them, the moisture absorption rate of the polyester fiber is greater than 8%; the fiber length of the combed cotton is ≥35mm, the short fiber rate after combing is ≤8%, and the micronaire value is 3.7 - 4.2; the fibrillation index of the regenerated cellulose fiber is ≤3.

2. The blended fabric according to claim 1, characterized in that, The polyester fiber includes any one of COOLBST, polyester modified fiber and polylactic acid fiber.

3. The blended fabric according to claim 1, characterized in that, The combed cotton includes organic long-staple cotton or bamboo original fiber.

4. The blended fabric according to claim 1, wherein The regenerated cellulose fiber includes Lyocell fiber or Modal fiber or cuprammonium fiber.

5. The blended fabric according to claim 1, characterized in that, After combing, the short fiber rate of the combed cotton is ≤8%, and the fiber length retention rate is ≥90%.

6. A method for preparing a blended fabric, characterized in that, It includes: Modify the polyester fiber to make the dilution rate of the polyester fiber greater than 8%; Perform bamboo original fiber enzyme treatment on the combed cotton; Perform anti-fibrillation treatment on the regenerated cellulose fiber; The treated polyester fiber, combed cotton and regenerated cellulose fiber are drawn and blended to obtain the blended fabric.

7. The method for preparing the blended fabric according to claim 6, characterized in that, When the polyester fiber is COOLBST, immerse the COOLBST in a nano-SiO2 dispersion liquid (concentration 5% - 8%), the liquor ratio is 70% - 80%, bake at 150°C for 3 minutes for modification treatment; When the polyester fiber is polylactic acid fiber, blend the polylactic acid (PLA) fiber with polybutylene adipate terephthalate (PBAT), and the melt spinning temperature is 210°C - 220°C for modification treatment.

8. The method for preparing the blended fabric according to claim 7, wherein, The mixing ratio of polylactic acid (PLA) fiber and polybutylene adipate terephthalate (PBAT) is 4 - 5:

1.

9. The method for preparing the blended fabric according to claim 6, characterized in that, The steps of performing bamboo original fiber enzyme treatment on the combed cotton include: Treat the combed cotton in a mixed solution of laccase and 2,2,6,6-tetramethylpiperidine-1-oxyl radical, the pH of the treatment is 4.0 - 4.2, the treatment temperature is 50°C - 55°C, the treatment time is 3 - 4h, and boil with alkali at 100°C - 120°C for 1h - 2h.

10. The method for preparing the blended fabric according to claim 9, characterized in that, The mixing ratio of combed cotton to the mixed solution of laccase and 2,2,6,6-tetramethylpiperidine-1-oxyl radical is 1 - 2:5.

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