High-count single-warp single-weft sirofil light and thin fabric and preparation process thereof

Abstract

The invention relates to the field of wool spinning, and particularly discloses a high-count single-warp single-weft Sirofil light and thin fabric and a preparation process thereof.The preparation process comprises the following preparation steps that S1, wool with the fineness of 17.5 and 2D polyester are blended according to the proportion of 64 / 36, and wool-polyester blended yarn is prepared; s2, taking 30D / 1 elastic filaments as core yarns, taking wool-polyester blended yarns as outer-layer wrap yarns, and performing compact sirofil spinning to obtain about 60 / 1 single yarns; s3, weaving the single-yarn plain weave into finished cloth of 104 g / m < 2 >; s4, the finished fabric is subjected to after-finishing, and the light and thin fabric is obtained. The wool-polyester blended yarns are amino silane coupling agent modified blended yarns, and the elastic filaments are carboxymethyl chitosan modified spandex. Yarns made of the high-count single-warp single-weft sirofil light and thin fabric are high in strength, smooth and not prone to washing shrinkage, and the performance of the high-count single-warp single-weft light and thin fabric is improved.

Description

Technical Field

[0001] The present application relates to the field of worsted fabrics, and more specifically, to a high-count single-warp and single-weft thin fabric made of cellulose ester and a preparation process thereof. Background Art

[0002] Single-warp, single-weft fabrics are high-count, lightweight fabrics woven with single yarns for both warp and weft, rather than traditional ply yarns. The core technology behind single-weft fabrics lies in optimizing yarn structure through compact spinning techniques, such as compact spinning and sartorius spinning. Typical yarn counts range from 35S / 1 to 60S / 1, with some advanced processes reaching 80S / 1. These fabrics are characterized by their lightness, softness, and fine texture, and are commonly used in high-end suits, shirts, and other apparel. The finished products are lightweight and comfortable, offering lower raw material costs and higher production efficiency than double-warp, double-weft, or sartorius fabrics. However, the lower strength of single yarns can lead to high end-down rates and reduced weaving efficiency. Sizing or specialized spinning techniques are required to compensate for this, but these are limited and can also cause other problems. For example, combining wool yarn with elastic filament using compact sartorius spinning can improve stretch and spinnability, but the difference in thermal shrinkage between the elastic filament and wool fibers can cause wrinkling during finishing.

[0003] In order to improve the strength and smoothness of single-warp and single-weft fabrics, existing technologies often use sizing and other technologies. However, the fabrics need to be desized later, and the strength bonding effect after desizing is limited. How to provide a high-count single-warp and single-weft thin fabric with high strength and smoothness, which is not easy to shrink after washing, has high research value in the field of high-end fabrics. Summary of the Invention

[0004] In order to improve the strength and flatness of single-warp and single-weft fabrics and reduce shrinkage, the present application provides a high-count single-warp and single-weft thin fabric and a preparation process thereof.

[0005] In the first aspect, the present application provides a preparation process for a high-count single-warp and single-weft thin fabric made of cerofoil, which adopts the following technical solution: S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to produce wool-polyester blended yarn; S2: 30D / 1 elastic filament yarn is used as the core yarn, wool-polyester blended yarn is used as the outer covering yarn, and single yarn of about 60 / 1 is obtained by compact spun yarn. S3: Weaving the single yarn plain weave into a finished fabric of 100-108 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric.

[0006] By adopting the above technical scheme, the blended yarn made of wool and polyester with a certain fineness and mass ratio has both skin-friendly, breathable and crisp and wrinkle-resistant effects. Through tight serofil spinning with elastic filaments, the blended yarn is coated with high-elongation filaments to form a "skin-core structure". The elastic filament coated wool yarn can significantly enhance the strength of single yarn and give the fabric high elasticity. Serofil spinning reduces hairiness, and the fabric surface is smooth and clear, which is suitable for high-end fabric needs. The filaments share the spinning tension, reduce the breakage rate, increase the speed and efficiency, reduce hairiness, and improve the smoothness of the yarn. At the same time, by controlling the tension of the core yarn, excessive stretching and resulting in loss of elasticity are avoided, ensuring that the fabric has both the fluffy feeling of wool and uniform elasticity. The fabric made after plain weave is light and thin while being relatively flat and crisp.

[0007] In a specific embodiment, the wool-polyester blended yarn is an aminosilane coupling agent modified blended yarn, and the elastic filament is carboxymethyl chitosan modified spandex.

[0008] By adopting the above technical scheme, the modified blended yarn and spandex are softer and smoother. At the same time, more active amino groups are introduced into the surface of the blended yarn, and more carboxyl groups are introduced into the surface of the spandex. The two can undergo certain cross-linking during the subsequent continuous boiling process, thereby improving the bonding effect of the blended yarn on the surface of the spandex. The obtained single yarn is smoother and tighter, and also has certain antibacterial properties. At the same time, a certain amount of scales are retained on the surface of the wool, which can achieve tighter bonding in the subsequent washing and shrinking process, further improving the dimensional stability of the fabric and making it less prone to dew or fabric defects.

[0009] In a specific embodiment, the preparation steps of the aminosilane coupling agent modified blended yarn include: adding wool-polyester blended yarn and aminosilane coupling agent to ethanol aqueous solution, heating and stirring to react, filtering, washing with deionized water, and drying to obtain modified wool-polyester blended yarn.

[0010] In a specific embodiment, the preparation steps of carboxymethyl chitosan modified spandex include: activating and pretreating the spandex fiber, then immersing it in a CMCS solution, adding glutaraldehyde, heating and stirring to react, washing and drying to obtain the carboxymethyl chitosan modified spandex.

[0011] The above preparation steps are simple, the obtained fiber modification effect is relatively stable, and better bonding between the fibers can be achieved in the post-processing process.

[0012] In a specific embodiment, the post-finishing process includes the following steps: first continuous scouring: scouring temperature 80-90 ° C, running speed 15-25 m / min; washing and shrinking: washing and shrinking at 40-45 ° C for 10-12 minutes, air volume 1.1-1.3 m 3 / s, roller pressure 1.4-1.6MPa, water level 100-300mm, then flushing for 3-10 minutes, flushing speed 150-210m / min; second continuous scouring: scouring temperature 80-90℃, running speed 15-25m / min; drying; high temperature setting: setting temperature 150-170℃, running speed 35-45m / min, overfeed 3.5-4.5%; tank steaming: steam pressure 0.7-0.9MPa, temperature 120-130℃, time 1.5-2.5 minutes.

[0013] By employing this technical solution, continuous cooking induces initial fiber expansion, releasing internal stress. Simultaneously, the scouring temperature is optimized for crosslinking the surface active groups of the blended yarn and spandex. This integration of the crosslinking and continuous cooking processes enhances the fabric's structural adaptability to the stress release process, resulting in a fabric with enhanced smoothness and strength. Furthermore, after washing and shrinking, the remaining wool scales are gently engaged, achieving "controlled milling," increasing fabric density and softness while avoiding excessive milling that can reduce stiffness. This also enhances the cohesion of the polyester and elastic filaments. Mechanical extrusion and water impaction uniformly adjust fabric shrinkage. The coordinated adjustment of scale engagement and crosslinking further enhances dimensional stability. By adjusting the feed speed to a percentage greater than the machine's operating speed, the fabric is forced to stretch, offsetting natural shrinkage after washing and shrinking. High temperature sets the polyester molecular chains and stabilizes the elastic filaments in their elongated state, further stabilizing the structure through the effects of moisture and heat. High-pressure steaming fully expands the fabric fibers, eliminating internal stresses and imparting a long-lasting gloss, smooth feel, and drape. This method is particularly suitable for enhancing the "mercerization" effect on wool fabrics. The process parameter setting is suitable for the fabric of this application, and the prepared fabric is smooth and not easy to shrink.

[0014] In a specific embodiment, the single yarn twist is 1100-1200 twists / m.

[0015] In a specific embodiment, the wool-polyester blended yarn is further pretreated with a boric acid-citric acid mixed acid solution with an acid concentration of 4-5%, a bath ratio of 1:(40-50), and a treatment time of 10-15 minutes.

[0016] In a specific embodiment, the mass volume ratio of the boric acid to the citric acid is 1:(1.5-2.0).

[0017] In a specific embodiment, the post-finishing process includes the following steps: first continuous scouring: scouring temperature 85°C, running speed 20 m / min; washing and shrinking: washing and shrinking at 40°C for 10 minutes, air volume 1.2 m 3 / s, roller pressure 1.5MPa, water level 200mm, then rinse for 6 minutes, rinse speed 180m / min; second continuous scouring: scouring temperature 85℃, running speed 20m / min; drying; high temperature setting: setting temperature 1600℃, running speed 40m / min, overfeed 4%; tank steaming: steam pressure 0.8MPa, temperature 125℃, time 2 minutes.

[0018] By adopting the above technical solution, the twist is appropriate, and the high-twist yarn is not easily deformed excessively during washing and shrinkage. The tension of the elastic filament is controlled to be stable during spinning, which cooperates with the overfeeding process in the shaping stage to ensure that the elastic filament is in a "moderately stretched" state in the finished product, thereby maximizing the elastic performance. The resulting fabric is relatively tight and smooth. At the same time, the wool-polyester blended yarn is lightly acid-treated, and some scales on the wool surface are removed. The degree of shrinkage is appropriate, reducing the shrinkage ratio with polyester and spandex, and reducing the difference in thermal shrinkage with elastic filaments. At the same time, a certain shrinkage is retained to enhance the bonding between fibers, and the generation of wrinkles is reduced in the finishing stage. Under the treatment of this acid concentration and process parameters, the volume of the wool is slightly reduced, and the polyester does not produce obvious volume changes. A certain relaxation gap is generated between the blended yarn fibers made of wool and polyester, which provides space for subsequent finishing, continuous boiling, cross-linking and washing and shrinkage. The overall uniformity and fluffiness of the yarn will not decrease due to the high degree of washing, condensation and cross-linking of the wool, forming a "tight and loose" contradictory structure. The stress density of the resulting fabric is more uniform, the cross-linking and bonding between fibers are more stable, and it has both high strength and smoothness.

[0019] By using boric acid and citric acid together in a certain mass ratio, boric acid provides a stable acidic structure, avoiding excessive hydrolysis of wool and excessive local pH fluctuations caused by strong acids, promoting wool fiber swelling through hydrogen bonding, and improving the uniformity of treatment. Citric acid provides hydrogen ions to trigger mild hydrolysis and ion exchange of wool scales. At the same time, its own carboxyl group may act as a potential "carboxyl donor", increasing the polar groups on the wool surface through adsorption or weak bonding, and chelating the metal ions in the treatment solution to a certain extent, thereby improving the stability of the treatment solution, and the subsequent crosslinking and shrinkage effects of the obtained yarn are better.

[0020] In a second aspect, the present application provides a single-warp and single-weft thin fabric made of cellulose cellulose spun polyester, which is prepared by the above preparation process.

[0021] In summary, this application has the following beneficial effects: 1. The present application provides a preparation process for single-warp and single-weft sarofil-spun light fabrics. By rationally adopting wool and polyester of a certain fineness and ratio as covering yarns, and elastic filaments of a certain fineness as core yarns, the yarn strengths are relatively reasonable. By further modifying the wool-polyester blended yarn with an aminosilane coupling agent and the elastic filaments with carboxymethyl chitosan, the fabric can achieve a certain degree of cross-linking in the post-finishing step. The process is simple, the cross-linking structure is more reasonable, the bonding between the fibers is improved, and the fabric is smooth and high-strength.

[0022] 2. This application performs scouring at a certain temperature and washing and shrinking with a certain process in the post-finishing step, and performs a light scale treatment on the wool-polyester blended yarn to create a certain gap with the polyester, providing a certain space for the subsequent washing and shrinking process. The yarn is cross-linked and bonded to a certain extent, which will prevent the wool from being too tight after post-processing to cause uneven tension, and the fabric will be smoother. DETAILED DESCRIPTION

[0023] To further help understand the technical solution of the present invention, the following provides several specific implementation examples to describe the technical solution of the present invention in more detail. All of these described embodiments are only some embodiments of the present invention, not all. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments; and the reaction devices, monomer compounds, etc. involved in the following embodiments are commercially available unless otherwise specified.

[0024] The aminosilane coupling agent is Dow Corning silane coupling agent OFS-6020 bisaminosilane.

[0025] The following examples are provided to further illustrate the present invention, but the present invention is not limited thereto.

[0026] Preparation Example Preparation Example 1: Plasma-treated polyester: The 2D polyester was ultrasonically cleaned with anhydrous ethanol for 10 minutes, dried, and then plasma treated to obtain plasma-treated polyester. The treatment gas was 99.99% pure oxygen, the gas flow rate was 25 sccm, the power was 50 W, the treatment time was 3 minutes, the chamber pressure was 30 Pa, and the temperature was room temperature.

[0027] Preparation Example 2: Carboxymethyl chitosan modified spandex: 30D / 1 spandex fiber was immersed in a 2% NaOH solution and stirred at 50°C for 30 minutes. After removal, the fiber was rinsed with deionized water until neutral and oven-dried at 40°C. 5g of CMCS was dissolved in 100ml of 0.1M hydrochloric acid and ultrasonically dispersed for 15 minutes until completely dissolved, forming a 5%w CMCS solution. The pH of the solution was adjusted to 6.0, and 0.5g of EDC was added and stirred for 30 minutes. The activated spandex fiber was immersed in the CMCS solution, followed by 5ml of glutaraldehyde and stirred at 60°C for 4 hours. The pH was maintained at 6.0 by dropwise addition of 0.1M NaOH. After the reaction, the fiber was repeatedly washed with deionized water until no residue remained, then rinsed once with ethanol to remove unreacted CMCS. The fiber was then dried in a vacuum oven at 40°C for 12 hours to obtain the modified spandex fiber. Example

[0028] Example 1 S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to produce wool-polyester blended yarn; S2: 30D / 1 spandex was used as the core yarn, and wool-polyester blended yarn was used as the outer covering yarn. The single yarn was made by compact spun with a twist of about 60 / 1 and a twist of 1200 twists / m. S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric: First continuous scouring: scouring temperature 80℃, running speed 25m / min; washing and shrinking: washing and shrinking at 40℃ for 12 minutes, air volume 1.1m 3 / s, roller pressure 1.6MPa, water level 300mm, then rinse for 3 minutes, rinse speed 210m / min; second continuous scouring: scouring temperature 90℃, running speed 25m / min; drying; high temperature setting: setting temperature 170℃, running speed 35m / min, overfeed 3.5%; tank steaming: steam pressure 0.7MPa, temperature 120℃, time 2.5 minutes.

[0029] Example 2 S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to prepare wool-polyester blended yarn, which is then modified with an aminosilane coupling agent to prepare a modified wool-polyester blended yarn. The modification steps are as follows: 10 kg of wool-polyester blended yarn and 0.5 kg of aminosilane coupling agent were added to 85% ethanol aqueous solution, stirred at 80° C. for 2.5 hours, filtered, washed with deionized water, and dried to obtain modified wool-polyester blended yarn; S2: 30D / 1 spandex was used as the core yarn, and modified wool-polyester blended yarn was used as the outer covering yarn. The single yarn was made by compact spun with a twist of about 60 / 1 and a twist of 1200 twists / m. S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric: First continuous scouring: scouring temperature 80℃, running speed 25m / min; washing and shrinking: washing and shrinking at 40℃ for 12 minutes, air volume 1.1m 3 / s, roller pressure 1.6MPa, water level 300mm, then rinse for 3 minutes, rinse speed 210m / min; second continuous scouring: scouring temperature 90℃, running speed 25m / min; drying; high temperature setting: setting temperature 170℃, running speed 35m / min, overfeed 3.5%; tank steaming: steam pressure 0.7MPa, temperature 120℃, time 2.5 minutes.

[0030] Example 3 S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to produce wool-polyester blended yarn; S2: The carboxymethyl chitosan modified spandex prepared in Preparation Example 2 was used as the core yarn, the wool-polyester blended yarn was used as the outer covering yarn, and the single yarn was obtained by compact spinning of about 60 / 1 by Cyrofil, with a single yarn twist of 1200 twists / m; S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric: First continuous scouring: scouring temperature 80℃, running speed 25m / min; washing and shrinking: washing and shrinking at 40℃ for 12 minutes, air volume 1.1m 3 / s, roller pressure 1.6MPa, water level 300mm, then rinse for 3 minutes, rinse speed 210m / min; second continuous scouring: scouring temperature 90℃, running speed 25m / min; drying; high temperature setting: setting temperature 170℃, running speed 35m / min, overfeed 3.5%; tank steaming: steam pressure 0.7MPa, temperature 120℃, time 2.5 minutes.

[0031] Example 4 S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to make wool-polyester blended yarn, which is then modified with an aminosilane coupling agent to make modified wool-polyester blended yarn. The modification steps are as follows: 10 kg of wool-polyester blended yarn and 0.5 kg of aminosilane coupling agent were added to 85% ethanol aqueous solution, stirred at 80° C. for 2.5 hours, filtered, washed with deionized water, and dried to obtain modified wool-polyester blended yarn; S2: The carboxymethyl chitosan modified spandex prepared in Preparation Example 2 was used as the core yarn, and the modified wool-polyester blended yarn was used as the outer covering yarn. The single yarn was obtained by compact spinning with a twist of about 60 / 1 and a twist of 1200 twists / m. S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric: First continuous scouring: scouring temperature 80℃, running speed 25m / min; washing and shrinking: washing and shrinking at 40℃ for 12 minutes, air volume 1.1m 3 / s, roller pressure 1.6MPa, water level 300mm, then rinse for 3 minutes, rinse speed 210m / min; second continuous scouring: scouring temperature 90℃, running speed 25m / min; drying; high temperature setting: setting temperature 170℃, running speed 35m / min, overfeed 3.5%; tank steaming: steam pressure 0.7MPa, temperature 120℃, time 2.5 minutes.

[0032] Example 5 S1: 17.5 fineness wool and the plasma-treated polyester prepared in Preparation Example 1 were blended in a ratio of 64 / 36 to produce a wool-polyester blended yarn, which was then modified with an aminosilane coupling agent to produce a modified wool-polyester blended yarn. The modification steps were as follows: 10 kg of wool-polyester blended yarn and 0.5 kg of aminosilane coupling agent were added to 85% ethanol aqueous solution, stirred at 80° C. for 2.5 hours, filtered, washed with deionized water, and dried to obtain modified wool-polyester blended yarn; S2: The carboxymethyl chitosan modified spandex prepared in Preparation Example 2 was used as the core yarn, and the modified wool-polyester blended yarn was used as the outer covering yarn. The single yarn was obtained by compact spinning with a twist of about 60 / 1 and a twist of 1200 twists / m. S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric: First continuous scouring: scouring temperature 80℃, running speed 25m / min; washing and shrinking: washing and shrinking at 40℃ for 12 minutes, air volume 1.1m 3 / s, roller pressure 1.6MPa, water level 300mm, then rinse for 3 minutes, rinse speed 210m / min; second continuous scouring: scouring temperature 90℃, running speed 25m / min; drying; high temperature setting: setting temperature 170℃, running speed 35m / min, overfeed 3.5%; tank steaming: steam pressure 0.7MPa, temperature 120℃, time 2.5 minutes.

[0033] Example 6 S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to produce wool-polyester blended yarn, which is then pretreated with mixed acid solution and modified with an aminosilane coupling agent to produce modified wool-polyester blended yarn. The steps are as follows: 10 kg of wool-polyester blended yarn was pretreated by immersing it in a boric acid-citric acid mixed acid solution with a volume ratio of 1:1, with an acid concentration of 4% and a bath ratio of 1:40 for 10 minutes. The yarn was then added together with 0.5 kg of an aminosilane coupling agent into an 85% ethanol aqueous solution, stirred at 80° C. for 2.5 hours, filtered, washed with deionized water, and dried to obtain a modified wool-polyester blended yarn. S2: The carboxymethyl chitosan modified spandex prepared in Preparation Example 2 was used as the core yarn, and the modified wool-polyester blended yarn was used as the outer covering yarn. The single yarn was obtained by compact spinning with a twist of about 60 / 1 and a twist of 1200 twists / m. S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric: First continuous scouring: scouring temperature 80℃, running speed 25m / min; washing and shrinking: washing and shrinking at 40℃ for 12 minutes, air volume 1.1m 3 / s, roller pressure 1.6MPa, water level 300mm, then rinse for 3 minutes, rinse speed 210m / min; second continuous scouring: scouring temperature 90℃, running speed 25m / min; drying; high temperature setting: setting temperature 170℃, running speed 35m / min, overfeed 3.5%; tank steaming: steam pressure 0.7MPa, temperature 120℃, time 2.5 minutes.

[0034] Example 7 S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to produce wool-polyester blended yarn, which is then pretreated with mixed acid solution and modified with an aminosilane coupling agent to produce modified wool-polyester blended yarn. The steps are as follows: 10 kg of wool-polyester blended yarn was pretreated by immersing it in a boric acid-citric acid mixed acid solution with a volume ratio of 1:2, with an acid concentration of 4% and a bath ratio of 1:40 for 10 minutes. The yarn was then added together with 0.5 kg of an aminosilane coupling agent into an 85% ethanol aqueous solution, stirred at 80° C. for 2.5 hours, filtered, washed with deionized water, and dried to obtain a modified wool-polyester blended yarn. S2: The carboxymethyl chitosan modified spandex prepared in Preparation Example 2 was used as the core yarn, and the modified wool-polyester blended yarn was used as the outer covering yarn. The single yarn was obtained by compact spinning with a twist of about 60 / 1 and a twist of 1200 twists / m. S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric: First continuous scouring: scouring temperature 80℃, running speed 25m / min; washing and shrinking: washing and shrinking at 40℃ for 12 minutes, air volume 1.1m 3 / s, roller pressure 1.6MPa, water level 300mm, then rinse for 3 minutes, rinse speed 210m / min; second continuous scouring: scouring temperature 90℃, running speed 25m / min; drying; high temperature setting: setting temperature 170℃, running speed 35m / min, overfeed 3.5%; tank steaming: steam pressure 0.7MPa, temperature 120℃, time 2.5 minutes.

[0035] Example 8 S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to produce wool-polyester blended yarn, which is then pretreated with mixed acid solution and modified with an aminosilane coupling agent to produce modified wool-polyester blended yarn. The steps are as follows: 10 kg of wool-polyester blended yarn was pretreated by immersing it in a boric acid-citric acid mixed acid solution with a volume ratio of 1:3, the acid concentration was 4%, the bath ratio was 1:40, and the treatment time was 10 minutes. Then, the yarn and 0.5 kg of aminosilane coupling agent were added together to an 85% ethanol aqueous solution, stirred at 80°C for 2.5 hours, filtered, washed with deionized water, and dried to obtain a modified wool-polyester blended yarn. S2: The carboxymethyl chitosan modified spandex prepared in Preparation Example 2 was used as the core yarn, and the modified wool-polyester blended yarn was used as the outer covering yarn. The single yarn was obtained by compact spinning with a twist of about 60 / 1 and a twist of 1200 twists / m. S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric: First continuous scouring: scouring temperature 80℃, running speed 25m / min; washing and shrinking: washing and shrinking at 40℃ for 12 minutes, air volume 1.1m 3 / s, roller pressure 1.6MPa, water level 300mm, then rinse for 3 minutes, rinse speed 210m / min; second continuous scouring: scouring temperature 90℃, running speed 25m / min; drying; high temperature setting: setting temperature 170℃, running speed 35m / min, overfeed 3.5%; tank steaming: steam pressure 0.7MPa, temperature 120℃, time 2.5 minutes.

[0036] Example 9 S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to produce wool-polyester blended yarn, which is then pretreated with mixed acid solution and modified with an aminosilane coupling agent to produce modified wool-polyester blended yarn. The steps are as follows: 10 kg of wool-polyester blended yarn was pretreated by immersing it in a boric acid-citric acid mixed acid solution with a volume ratio of 1:2, with an acid concentration of 4% and a bath ratio of 1:40 for 10 minutes. The yarn was then added together with 0.5 kg of an aminosilane coupling agent into an 85% ethanol aqueous solution, stirred at 80° C. for 2.5 hours, filtered, washed with deionized water, and dried to obtain a modified wool-polyester blended yarn. S2: The carboxymethyl chitosan modified spandex prepared in Preparation Example 2 was used as the core yarn, and the modified wool-polyester blended yarn was used as the outer covering yarn. The single yarn was obtained by compact spinning with a twist of about 60 / 1 and a twist of 900 twists / m. S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric: First continuous scouring: scouring temperature 80℃, running speed 25m / min; washing and shrinking: washing and shrinking at 40℃ for 12 minutes, air volume 1.1m 3 / s, roller pressure 1.6MPa, water level 300mm, then rinse for 3 minutes, rinse speed 210m / min; second continuous scouring: scouring temperature 90℃, running speed 25m / min; drying; high temperature setting: setting temperature 170℃, running speed 35m / min, overfeed 3.5%; tank steaming: steam pressure 0.7MPa, temperature 120℃, time 2.5 minutes.

[0037] Example 10 S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to produce wool-polyester blended yarn, which is then pretreated with mixed acid solution and modified with an aminosilane coupling agent to produce modified wool-polyester blended yarn. The steps are as follows: 10 kg of wool-polyester blended yarn was pretreated by immersing it in a boric acid-citric acid mixed acid solution with a volume ratio of 1:2, with an acid concentration of 4% and a bath ratio of 1:40 for 10 minutes. The yarn was then added together with 0.5 kg of an aminosilane coupling agent into an 85% ethanol aqueous solution, stirred at 80° C. for 2.5 hours, filtered, washed with deionized water, and dried to obtain a modified wool-polyester blended yarn. S2: The carboxymethyl chitosan modified spandex prepared in Preparation Example 2 was used as the core yarn, and the modified wool-polyester blended yarn was used as the outer covering yarn. The single yarn was obtained by compact spinning with a twist of about 60 / 1 and a twist of 1400 twists / m. S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric: First continuous scouring: scouring temperature 80℃, running speed 25m / min; washing and shrinking: washing and shrinking at 40℃ for 12 minutes, air volume 1.1m 3 / s, roller pressure 1.6MPa, water level 300mm, then rinse for 3 minutes, rinse speed 210m / min; second continuous scouring: scouring temperature 90℃, running speed 25m / min; drying; high temperature setting: setting temperature 170℃, running speed 35m / min, overfeed 3.5%; tank steaming: steam pressure 0.7MPa, temperature 120℃, time 2.5 minutes.

[0038] Example 11 S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to produce wool-polyester blended yarn, which is then pretreated with mixed acid solution and modified with an aminosilane coupling agent to produce modified wool-polyester blended yarn. The steps are as follows: 10 kg of wool-polyester blended yarn was pretreated by immersing it in a boric acid-citric acid mixed acid solution with a volume ratio of 1:2, with an acid concentration of 4% and a bath ratio of 1:40 for 10 minutes. The yarn was then added together with 0.5 kg of an aminosilane coupling agent into an 85% ethanol aqueous solution, stirred at 80° C. for 2.5 hours, filtered, washed with deionized water, and dried to obtain a modified wool-polyester blended yarn. S2: The carboxymethyl chitosan modified spandex prepared in Preparation Example 2 was used as the core yarn, and the modified wool-polyester blended yarn was used as the outer covering yarn. The single yarn was obtained by compact spinning with a twist of about 60 / 1 and a twist of 1200 twists / m. S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric: First continuous scouring: scouring temperature 85℃, running speed 20m / min; washing and shrinking: washing and shrinking at 40℃ for 10 minutes, air volume 1.2m 3 / s, roller pressure 1.5MPa, water level 200mm, then rinse for 6 minutes, rinse speed 180m / min; second continuous scouring: scouring temperature 85℃, running speed 20m / min; drying; high temperature setting: setting temperature 1600℃, running speed 40m / min, overfeed 4%; tank steaming: steam pressure 0.8MPa, temperature 125℃, time 2 minutes.

[0039] Comparative Example Comparative Example 1 S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to make wool-polyester blended yarn, which is then modified with an aminosilane coupling agent to make modified wool-polyester blended yarn. The modification steps are as follows: 10 kg of wool-polyester blended yarn and 0.5 kg of aminosilane coupling agent were added to 85% ethanol aqueous solution, stirred at 80° C. for 2.5 hours, filtered, washed with deionized water, and dried to obtain modified wool-polyester blended yarn; S2: The carboxymethyl chitosan modified spandex prepared in Preparation Example 2 was used as the core yarn, and the modified wool-polyester blended yarn was used as the outer covering yarn. The single yarn was obtained by compact spinning with a twist of about 60 / 1 and a twist of 1200 twists / m. S3: Weaving the single yarn plain weave into a finished fabric of 104 g / m2; Performance test test 1: Refer to GB / T 13769-2009 to test the appearance flatness level of the sample after washing, where level 1 represents the most uneven appearance and level 5 represents the smoothest appearance.

[0040] Test 2: Referring to GB / T 3923.1-1997, the breaking strength of the specimen was tested using a constant-rate tensile testing instrument.

[0041] Test 3: Refer to GB / T 8628-2013 to detect the shrinkage rate of the sample area.

[0042] The test results are shown in Table 1.

[0043] Table 1 Flatness Breaking strength (N) Shrinkage rate (%) Example 1 2.5 390.1 2.7 Example 2 3 401.5 2.5 Example 3 3 404.4 2.5 Example 4 3 427.1 1.9 Example 5 2 415.1 2.2 Example 6 2 407.7 2.1 Example 7 3 427.0 1.0 Example 8 2 408.5 2.2 Example 9 2 400.1 2.2 Example 10 3 417.5 2.0 Example 11 4 431.8 0.8 Comparative Example 1 1 351.2 7.0 In combination with Examples 1-4, Comparative Example 1 and Table 1, the present application performs compact spun yarn using spandex as the core yarn and wool-polyester blended yarn as the covering yarn, and performs carboxymethyl chitosan modification and aminosilane coupling agent modification respectively, and cooperates with the fineness of different fibers and post-processing processes to enable the fibers to form a better bonding condition, smooth yarns, uniform stress, and achieve certain cross-linking and shrinkage during the post-processing process. The resulting light and thin fabric has better performance, high flatness and breaking strength, and is not easy to shrink.

[0044] In combination with Examples 4-5 and Table 1, the main modification site in the blended yarn modification process of the present application is the hydroxyl group on the surface of the wool. After the polyester is subjected to plasma pretreatment and then treated with an aminosilane coupling agent, the shrinkage of the wool and the release of stress during the post-processing of the fabric may be restricted due to overly tight cross-linking with the modified spandex, resulting in low flatness of the resulting fabric.

[0045] In combination with Examples 4, 6-8, Comparative Example 1 and Table 1, the present application further pre-treats the wool-polyester blended yarn with a mixed acid solution in a certain mass proportion, so that the wool scales are partially removed and the volume is slightly reduced, providing space for subsequent post-finishing, continuous boiling, cross-linking and washing and shrinking, while not significantly reducing the strength while further improving the feel and smoothness of the fabric.

[0046] In combination with Examples 7, 9-10, and 11 and Table 1, the single yarn made from the modified wool-polyester blended yarn and modified spandex pretreated with mixed acid in the present application has the best fiber bonding effect at a twist of 1200 twists / m, and at this time, under the post-treatment process of Example 11, the shrinkage, shaping, and stress release effects are the best, further improving the performance of the fabric.

[0047] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A process for preparing a high-count single-warp and single-weft thin fabric made of Cerofil, characterized by: The steps include: S1: 17.5 fineness wool and 2D polyester are blended in a ratio of 64 / 36 to produce wool-polyester blended yarn; S2: 30D / 1 elastic filament yarn is used as the core yarn, wool-polyester blended yarn is used as the outer covering yarn, and single yarn of about 60 / 1 is obtained by compact spun yarn. S3: Weaving the single yarn plain weave into a finished fabric of 100-108 g / m2; S4: Finishing the finished fabric to obtain a light and thin fabric.

2. The process for preparing a high-count single-warp and single-weft thin fabric of Cerofil according to claim 1, characterized in that: The wool-polyester blended yarn is an aminosilane coupling agent modified blended yarn, and the elastic filament is carboxymethyl chitosan modified spandex.

3. The process for preparing a high-count single-warp and single-weft thin fabric of Cerofil according to claim 1, characterized in that: The preparation steps of the aminosilane coupling agent modified blended yarn include: adding wool-polyester blended yarn and aminosilane coupling agent into ethanol aqueous solution, heating and stirring for reaction, filtering, washing with deionized water, and drying to obtain the modified wool-polyester blended yarn.

4. The process for preparing a high-count single-warp and single-weft thin fabric of Cerofil according to claim 1, characterized in that: The preparation steps of the carboxymethyl chitosan modified spandex include: activating and pretreating the spandex fiber, then immersing it in a CMCS solution, adding glutaraldehyde, heating and stirring to react, and washing and drying to obtain the carboxymethyl chitosan modified spandex.

5. The process for preparing a high-count single-warp and single-weft thin fabric of Cerofil according to claim 1, characterized in that: The post-finishing process includes the following steps: first continuous scouring: scouring temperature 80-90°C, running speed 15-25 m / min; washing and shrinking: washing and shrinking at 40-45°C for 10-12 minutes, air volume 1.1-1.3 m 3 / s, roller pressure 1.4-1.6MPa, water level 100-300mm, then flushing for 3-10 minutes, flushing speed 150-210m / min; second continuous scouring: scouring temperature 80-90℃, running speed 15-25m / min; drying; high temperature setting: setting temperature 150-170℃, running speed 35-45m / min, overfeed 3.5-4.5%; tank steaming: steam pressure 0.7-0.9MPa, temperature 120-130℃, time 1.5-2.5 minutes.

6. The process for preparing a high-count single-warp and single-weft thin fabric of Cerofil according to claim 2, characterized in that: The single yarn twist is 1100-1200 twists / m.

7. The process for preparing a high-count single-warp and single-weft thin fabric of Cerofil according to claim 6, characterized in that: The wool-polyester blended yarn is also pretreated with a boric acid-citric acid mixed acid solution with an acid concentration of 4-5%, a bath ratio of 1:(40-50), and a treatment time of 10-15 minutes.

8. The process for preparing a high-count single-warp and single-weft thin fabric according to claim 7, characterized in that The mass volume ratio of the boric acid to the citric acid is 1:(1.5-2.0).

9. The process for preparing a high-count single-warp and single-weft thin fabric of Cerofil according to claim 6, characterized in that: The post-finishing process includes the following steps: first continuous scouring: scouring temperature 85°C, running speed 20 m / min; washing and shrinking: washing and shrinking at 40°C for 10 minutes, air volume 1.2m 3 / s, roller pressure 1.5MPa, water level 200mm, then rinse for 6 minutes, rinse speed 180m / min; second continuous scouring: scouring temperature 85℃, running speed 20m / min; drying; high temperature setting: setting temperature 1600℃, running speed 40m / min, overfeed 4%; tank steaming: steam pressure 0.8MPa, temperature 125℃, time 2 minutes.

10. A high-count single-warp and single-weft thin fabric made of Cerofil, characterized by: The fabric is prepared by adopting the preparation process of the high-count single-warp and single-weft thin fabric of any one of claims 1 to 9.