Novel wool-like all-cotton fabric and processing method thereof

Abstract

The invention relates to a novel wool-like all-cotton fabric, which is formed by interweaving warp yarns and weft yarns, and is characterized in that all-cotton yarns are adopted as the warp yarns and the weft yarns, long stapled cotton fibers are adopted as the warp all-cotton yarns, the fiber length is 40-45mm, the fineness is 1.0-1.2 dtex, and the breaking strength of the yarns is greater than 17.5 cN / dtex; the processing method comprises the following steps: beaming warp yarns, sizing starch slurry, drafting and denting, weaving weft yarns by adopting a double-jet mode, singeing gray fabric, desizing, scouring and bleaching, napping, printing, ageing, washing and pickling, softening and shaping, and preshrinking to finally obtain the finished fabric. The fabric is soft and skin-friendly in hand feeling, fine in velvet feeling, not prone to hair falling, free of formaldehyde, very suitable for being used as bedding fabric for infants and pregnant women in autumn and winter, safe and healthy.

Description

Technical Field

[0001] The invention relates to the field of textiles, in particular to a novel wool-like pure cotton fabric and a processing method thereof. Background Art

[0002] Winter bedding is required to be warm and skin-friendly. In order to improve the warmth effect, cotton fabrics are generally sanded or brushed to make the fabric full of dense and plump fluff, which enhances the warmth and softness of the fabric when it comes into contact with the skin. However, because the sanding or brushing process damages the strength of the fiber and yarn, sanded bedding is prone to hair loss during washing and use. The industry standard for sanded quilt covers and sheets issued in 2015 clearly defines the requirements for depilation rate, among which the depilation rate of qualified products cannot be higher than 1.0%, and the depilation rate of first-class products cannot be higher than 0.8%. In order to reduce the depilation rate of fabrics, a commonly used method is to add a cross-linking agent during the post-processing to increase the bonding force between fibers. However, the resulting problem is that it not only affects the softness of the hand feel, but also may cause excessive formaldehyde content. Such sanded bedding cannot be used for pregnant women, infants and children, because the national standard has clear provisions for infant textiles, and the formaldehyde content cannot exceed 20mg / kg. Once the formaldehyde content is too high, it will affect the health and safety of pregnant women, infants and children. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a new type of wool-like pure cotton fabric and a processing method thereof. The fabric has a soft and skin-friendly feel, a fine velvety feel, is not easy to shed hair, and does not contain formaldehyde. It is very suitable as a bedding fabric for infants and pregnant women in autumn and winter, and is safe and healthy.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a new type of wool-like pure cotton fabric, which is interwoven by warp yarns and weft yarns, and its innovation lies in: both the warp yarns and the weft yarns are made of pure cotton yarns, and the warp pure cotton yarns are made of long-staple cotton fibers with a fiber length of 40 to 45 mm, a fineness of 1.0 to 1.2 dtex, and a yarn breaking strength greater than 17.5 cN / dtex.

[0005] Furthermore, the weft yarns are woven in a double-jet manner, and two weft yarns are woven in simultaneously in a straight and parallel state.

[0006] The processing method of the novel wool-like pure cotton fabric is characterized by comprising the following steps: firstly, the warp yarn is warped, starch sizing, and reeding, and then the weft yarn is woven by double spraying, and then the grey cloth is singed, de-boiled, bleached, sanded, printed, steamed, washed, pickled, softened, and pre-shrinked to finally obtain the finished fabric.

[0007] Furthermore, the sizing process uses a combination of phosphate starch slurry and high-performance starch slurry.

[0008] Furthermore, the singeing process adopts one forward and one reverse, a vehicle speed of 110-120 m / min, a rolling enzyme fire extinguishing, 4-6 g / L of amylase, a cloth car dropping cloth, and stacking for 4-6 hours.

[0009] Furthermore, the descaling and bleaching process adopts a one-bath descaling and bleaching method, with 40-50 g / L of caustic soda, 4-6 g / L of penetrant, 10-12 g / L of scouring agent, 3-4 g / L of hydrogen peroxide, 5-6 g / L of hydrogen peroxide stabilizer, and steaming time of 60-65 min. The steps are hot water washing, padding with working solution, and drying the cloth after steaming.

[0010] Furthermore, the grinding process uses a ceramic roller grinding machine at a speed of 20 to 30 m / min.

[0011] Furthermore, in the water washing and acid washing process, the material is first washed with 4 to 10 g / L of weak acid, then washed with water for 6 to 10 times, and then washed with 8 to 15 g / L of buffered acid.

[0012] Furthermore, the softening and shaping process uses 10-15 g / L of smooth softener, 20-25 g / L of fluffy softener, 5-15 g / L of formaldehyde-free crosslinking agent, a vehicle speed of 30-50 m / min, and a shaping temperature of 150-170°C.

[0013] The advantages of the present invention are:

[0014] 1) The fabric of the present invention adopts pure cotton yarn, is sized with starch slurry, and is woven on a wide-width air-jet loom. After singeing, descaling and bleaching, grinding, printing, steaming, washing and acid washing, softening and shaping, pre-shrinking and other dyeing and finishing processes, a soft and delicate, skin-friendly and warm, non-hairy and formaldehyde-free pure cotton grinding fabric is formed, which is particularly suitable for use as bedding in autumn and winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Figure 1 The present invention is a new type of wool-like cotton fabric structure diagram. DETAILED DESCRIPTION

[0017] The following embodiments can enable those skilled in the art to more fully understand the present invention, but the present invention is not limited to the scope of the embodiments.

[0018] Embodiment 1:

[0019] like Figure 1The new wool-like pure cotton fabric shown is formed by interweaving warp yarns and weft yarns, both of which are pure cotton yarns. The warp pure cotton yarns are made of long-staple cotton fibers with a fiber length of 40 mm, a fineness of 1.0 dtex, and a yarn breaking strength greater than 17.5 cN / dtex.

[0020] The weft yarn is weaved in a double-jet manner, and two weft yarns are woven in at the same time in a straight and parallel state.

[0021] The processing method of the novel wool-like pure cotton fabric comprises the following steps: firstly, the warp yarn is warped, starch sizing is applied, and the weft yarn is woven by double spraying, and then the grey cloth is singed, debonded, bleached, sanded, printed, steamed, washed, pickled, softened, shaped, and pre-shrinked to finally obtain the finished fabric.

[0022] The sizing process uses a combination of phosphate starch slurry and high-performance starch slurry.

[0023] The singeing process adopts one forward and one reverse, the vehicle speed is 110m / min, the enzyme is rolled to extinguish the fire, the amylase is 4g / L, the cloth is dropped by the cloth car, and the cloth is piled for 4h.

[0024] The descaling and bleaching process adopts a one-bath descaling and bleaching method, with 40g / L caustic soda, 4g / L penetrant, 10g / L scouring agent, 3g / L hydrogen peroxide, 5g / L hydrogen peroxide stabilizer, steaming time 60min, and the steps are hot water washing, padding working solution, steaming and then drying the cloth.

[0025] The grinding process uses a ceramic roller sanding machine at a speed of 20m / min.

[0026] In the water washing and acid washing process, first use 4g / L weak acid to wash, then wash 6 times with water, and then wash with 8g / L buffered acid.

[0027] In the softening and shaping process, 10g / L of smooth softener, 20g / L of fluffy softener, 5g / L of formaldehyde-free cross-linking agent are used, the vehicle speed is 30m / min, and the shaping temperature is 150℃.

[0028] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A new type of wool-like cotton fabric, which is interwoven with warp yarn and weft yarn, and is characterized by: Both the warp yarn and the weft yarn are made of pure cotton yarn, wherein the warp yarn is made of long-staple cotton fiber, with a fiber length of 40 to 45 mm, a fineness of 1.0 to 1.2 dtex, and a yarn breaking strength greater than 17.5 cN / dtex; The weft yarns are woven in a double-jet manner, and two weft yarns are woven in at the same time in a straight and parallel state.

2. The method for processing a novel wool-like cotton fabric according to claim 1, characterized in that: The following steps are involved: The warp yarn is first warped, starch-sizing, and reeded, and then the weft yarn is woven by a double-spray method. The grey cloth is then singed, de-boiled, bleached, sanded, printed, steamed, washed, pickled, softened, and pre-shrunk to finally obtain the finished fabric.

3. The method for processing a novel wool-like cotton fabric according to claim 2, characterized in that: The sizing process uses a combination of phosphate starch slurry and high-performance starch slurry.

4. The method for processing a novel wool-like cotton fabric according to claim 2, characterized in that: The singeing process adopts one forward and one reverse, a vehicle speed of 110-120 m / min, a rolling enzyme extinguishing, 4-6 g / L of amylase, a cloth car dropping cloth, and stacking for 4-6 hours.

5. The method for processing a novel wool-like cotton fabric according to claim 2, characterized in that: The descaling and bleaching process adopts a one-bath descaling and bleaching method, with 40-50 g / L of caustic soda, 4-6 g / L of penetrant, 10-12 g / L of scouring agent, 3-4 g / L of hydrogen peroxide, 5-6 g / L of hydrogen peroxide stabilizer, and steaming time of 60-65 min. The steps are hot water washing, padding with working solution, and drying the cloth after steaming.

6. The method for processing a novel wool-like cotton fabric according to claim 2, characterized in that: The grinding process uses a ceramic roller grinding machine at a speed of 20 to 30 m / min.

7. The method for processing a novel wool-like pure cotton fabric according to claim 2, characterized in that: The water washing and acid washing process first uses 4 to 10 g / L of weak acid for washing, then washes with water for 6 to 10 times, and then washes with 8 to 15 g / L of buffered acid.

8. The method for processing a novel wool-like pure cotton fabric according to claim 2, characterized in that: The softening and shaping process uses 10-15 g / L of smooth softener, 20-25 g / L of fluffy softener, 5-15 g / L of formaldehyde-free crosslinking agent, a vehicle speed of 30-50 m / min, and a shaping temperature of 150-170°C.

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