Outdoor China-hemp cotton air layer knitted fabric

Abstract

The utility model relates to the technical field of garment materials, in particular to an outdoor China-hemp cotton air layer knitted fabric which comprises a first knitted layer, a second knitted layer and an air layer arranged between the first knitted layer and the second knitted layer. The first knitted layer and the second knitted layer are both made of yarn composed of China-hemp and organic cotton, and the air layer is made of organic cotton yarn. On the premise that the performance of the China-hemp is not affected, advantage complementation is achieved, the purpose of improving the wearability of a China-hemp knitted product is achieved, and the fabric is stiff, wide and thick, has good shape maintaining performance and is very suitable for making outdoor autumn and winter clothes.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing fabrics, in particular to a hemp-cotton air-layer knitted fabric for outdoor use. Background Art

[0002] Low-carbon clothing is a broad concept of clothing environmental protection, which refers to methods that produce lower total carbon emissions in the process of consuming all clothing, including choosing clothing with low total carbon emissions, choosing clothing made of recyclable materials, and increasing clothing utilization and reducing total clothing consumption. According to relevant data, the carbon dioxide emitted by a pure cotton T-shirt during its service life is about 28 times its weight, while chemical fiber fabrics are 117 times their weight. Fabrics made of hemp fiber are more environmentally friendly than cotton cloth. Research from the University of Melbourne shows that hemp cloth has 50% less impact on the ecology than cotton cloth.

[0003] Air layer fabric is a general term for fabrics with three layers or more fabric structures, consisting of an inner layer, an outer layer and a middle connecting layer. Its typical feature is that the inner layer and the outer layer are both composed of dense independent structure fabrics. The two are connected together by yarn to form an air sandwich in the fabric, which can store more air and improve the warmth retention effect of the fabric. Therefore, it is widely used in casual wear.

[0004] CN110565251A discloses a spandex air layer fabric, characterized in that: polyester viscose yarn and spandex are connected by a single-hole yarn arranged therebetween; the single-hole yarn forms a permanent thickness space and thickness elasticity. The fabric realizes a structure in which polyester viscose yarn covers spandex. The above patent solves the weaving problem of polyester viscose yarn covering spandex, provides a feasible weaving method, selects suitable materials, and realizes the thickness of the fabric. The above patent discloses the use of spandex to prepare air layer fabrics, and hemp fiber has excellent natural moisture absorption and moisture discharge, natural antibacterial and antibacterial properties, breathable and refreshing, radiation protection, and ultraviolet protection. With the industrialization development of hemp fiber, hemp is increasingly accepted and recognized in the clothing industry. And due to the unrestrained nature of knitted fabrics, they are often used as underwear and casual fabrics. With the rise of outdoor sports, hemp-cotton blended knitted fabrics have also quietly entered the ranks of outdoor clothing. Based on this, we provide outdoor hemp-cotton air layer knitted fabrics. Summary of the invention

[0005] In view of the shortcomings of the above-mentioned existing technologies, an outdoor hemp-cotton air layer knitted fabric is provided, which achieves complementary advantages without affecting the performance of hemp, thereby improving the wearing performance of hemp knitted products. The fabric is straight, thick, and has good shape retention properties, making it very suitable for outdoor autumn and winter clothing.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is that the outdoor hemp-cotton air layer knitted fabric includes a first knitted layer, a second knitted layer, and an air layer arranged between the first knitted layer and the second knitted layer, the first knitted layer and the second knitted layer are both composed of yarns composed of hemp and organic cotton, and the air layer is composed of organic cotton yarn.

[0007] The above-mentioned outdoor hemp-cotton air layer knitted fabric, the yarn is 21s combed yarn.

[0008] The above-mentioned outdoor hemp-cotton air layer knitted fabric, the yarn is composed of 30% hemp and 70% organic cotton.

[0009] The above-mentioned outdoor hemp cotton air layer knitted fabric, the organic cotton yarn is 30s organic cotton combed yarn.

[0010] The above-mentioned outdoor hemp-cotton air layer knitted fabric has a width of 155 cm.

[0011] The above-mentioned outdoor hemp cotton air layer knitted fabric has a gram weight of 340g / m 2 .

[0012] The above-mentioned outdoor hemp-cotton air layer knitted fabric has a thickness of the air layer of 10 mm.

[0013] The utility model has the beneficial effects of outdoor hemp-cotton air layer knitted fabrics, which have excellent natural moisture absorption and moisture discharge, natural antibacterial and antibacterial properties, breathable and refreshing, radiation protection, and UV protection. However, since hemp fibers have large bending and torsional rigidity, small cohesive force, poor spinnability, and the fiber head easily slips out of the yarn body, before spinning, it is necessary to perform an opening treatment to remove impurities and short fibers, and add soft and tough fibers to blend with it. Under the premise of not affecting the performance of hemp, the advantages are complementary, thereby improving the wearing performance of hemp knitted products.

[0014] The selection of yarn for air layer is based on the fact that the yarn should not only be soft but also have a certain rigidity to serve as a skeleton to support the fabric, so that the air layer has a certain height, and thus the fabric has a certain thickness. The air layer used in the utility model has a compact structure and good elasticity. Moreover, due to the existence of the hollow layer structure of the air layer, the fabric is wide, thick, and has good shape retention performance, and is very suitable for outdoor autumn and winter clothing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1 As shown, the outdoor hemp-cotton air layer knitted fabric includes a first knitted layer 1, a second knitted layer 2, and an air layer 3 arranged between the first knitted layer and the second knitted layer, wherein the first knitted layer 1 and the second knitted layer 2 are both composed of yarns composed of hemp and organic cotton, and the air layer 3 is composed of organic cotton yarn. Hemp is increasingly accepted and recognized in the clothing industry. And because of the non-binding nature of knitted fabrics themselves, they are often used as underwear and casual fabrics. With the rise of outdoor sports, hemp-cotton blended knitted fabrics have also quietly entered the ranks of outdoor clothing. Based on this, we provide the above-mentioned outdoor hemp-cotton air layer knitted fabric.

[0018] The yarn is 21s combed yarn. It is made of 30% hemp and 70% organic cotton. Hemp fiber has excellent natural moisture absorption and moisture removal, natural antibacterial and antibacterial properties, breathable and comfortable, radiation protection, UV protection and other characteristics, but because hemp fiber has large bending and torsional rigidity, small cohesion, poor spinnability, and the fiber head is easy to slip out of the yarn body. Therefore, before spinning, it is necessary to open the yarn to remove impurities and short fibers, and add soft and tough fibers to blend with it. Under the premise of not affecting the performance of hemp, the advantages are complementary, so as to improve the wearing performance of hemp knitted products. Therefore, the two surface layers use 21s combed yarn with a ratio of 30% hemp and 70% organic cotton.

[0019] The organic cotton yarn is 30s organic cotton combed yarn. The selection of air layer yarn is based on the fact that the yarn must not only be soft, but also have a certain rigidity to serve as a skeleton to support the fabric, so that the air layer has a certain height, and the fabric has a certain thickness. Based on the above points, the air layer yarn uses 30s organic cotton combed yarn, so that the air layer structure is tight and elastic. Due to the existence of the hollow layer structure of the air layer, the fabric is wide, thick, and has good shape retention performance, which is very suitable for outdoor autumn and winter clothing.

[0020] The width of the outdoor hemp cotton air layer knitted fabric is 155cm. The weight is 340g / m 2 The thickness of the air layer is 10 mm.

[0021] The following are the process conditions for preparing the above-mentioned hemp-cotton air layer knitted fabric:

[0022] Processing of yarn:

[0023] Steaming yarn

[0024] The hemp blended yarn is treated with hot steam to soften the colloid layer between the hemp fibers. This irreversible form can be preserved for a certain period of time, improving the flexibility of the yarn and stabilizing the twist of the yarn.

[0025] Waxing

[0026] In order to reduce the hairiness of yarn in the yarn rewinding process, the hemp yarn after steaming is waxed during the winding process, thereby reducing the friction coefficient of the yarn surface and improving the smoothness of the yarn.

[0027] Weaving

[0028] Workshop temperature and humidity

[0029] During the weaving process, because there are more short fibers in the hemp-organic-cotton blended yarn and the yarn is hard and brittle, the yarn is easy to break under the shear force of the yarn guide. And in a dry environment, the friction static electricity generated during the weaving process increases the mutual dispersion of the hemp short fibers. This can easily clog the needle eye of the loom, causing holes, broken yarns and other problems during the weaving process. Therefore, the relative humidity of the weaving workshop should be high. When weaving this fabric, the humidity of the weaving workshop is controlled at 68%-72%; the temperature is controlled at 24℃-28℃ to stabilize the yarn tension.

[0030] An annular enamel yarn guide hook is added between the yarn frame and the unwinding yarn guide hook, so that the yarn unwinding balloon becomes a large and small double balloon, stabilizing the unwinding tension.

[0031] dyeing

[0032] Dyeing process

[0033] During the dyeing process, bio-enzyme treatment, fabric softening and pre-shrinking processes are added. The process steps of the entire dyeing and finishing process are: grey cloth preparation → scouring → bio-enzyme treatment → dyeing → fabric softening → dehydration → opening → shaping → pre-shrinkage → finished product.

[0034] Enzyme treatment

[0035] Bio-enzyme treatment of hemp blended knitted fabrics can eliminate the hairiness on the fabric surface and improve the fabric's feel, itchiness, and pilling properties.

[0036] The biological enzyme treatment process is: add 3g / L of weakly acidic biological polishing enzyme MAX-L into the overflow tank, adjust the pH value to 5-7, control the treatment temperature to 40-60℃, and the treatment time to 40-60min. It can effectively remove the hairiness on the surface of the fabric, improve the anti-pilling performance of the fabric, and improve the drape, gloss and feel of the fabric, and the treatment effect is durable.

[0037] Soft treatment

[0038] The fabric softening process is as follows: add softener IJD5g / L into water to form a softener solution, then control the bath ratio to 1:10 in an overflow dyeing machine, and treat at a temperature of 40-50°C for 30-45min.

[0039] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A hemp-cotton air layer knitted fabric for outdoor use, characterized in that: The invention comprises a first knitted layer, a second knitted layer, and an air layer arranged between the first knitted layer and the second knitted layer. The first knitted layer and the second knitted layer are both made of yarns composed of hemp and organic cotton, and the air layer is made of organic cotton yarn.

2. The outdoor hemp-cotton air layer knitted fabric according to claim 1 is characterized by: The yarn was 21s combed yarn.

3. The outdoor hemp-cotton air layer knitted fabric according to claim 1 is characterized by: The organic cotton yarn is 30s organic cotton combed yarn.

4. The outdoor hemp-cotton air layer knitted fabric according to claim 3 is characterized by: The width of the door is 155cm.

5. The outdoor hemp-cotton air layer knitted fabric according to claim 4 is characterized by: Its weight is 340g / m 2 .

6. The outdoor hemp-cotton air layer knitted fabric according to claim 5 is characterized by: The thickness of the air layer is 10 mm.

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