Bacteriostatic coffee carbon running shoe fabric and preparation method therefor

Abstract

The present invention relates to the field of shoe material fabrics. Provided are a bacteriostatic coffee carbon running shoe fabric and a preparation method therefor, which solve the defects of the bacteriostatic coffee carbon fabric in the prior art having a single jacquard color, inelegant patterns, and an uneven and unsmooth fabric surface. The preparation method comprises the following steps: 1) selecting raw yarns; 2) dyeing; 3) weaving, involving: weaving dyed raw yarns by using a single jacquard warp knitting machine; and 4) setting, involving: uniformly applying hot air to the front and back surfaces of the fabric at 200°C, and carrying out stenter setting, lab dipping, inspection, packaging and warehousing processes to obtain the bacteriostatic coffee carbon running shoe fabric.

Description

Coffee carbon antibacterial running shoe fabric and preparation method thereof Technical Field

[0001] The present invention relates to the technical field of shoe materials, and in particular to a coffee carbon antibacterial running shoe material and a preparation method thereof. Background Art

[0002] As people's living standards and quality of life continue to improve, higher demands are being placed on shoe fabrics. These materials must not only meet new demands for comfort and fashion, but also be antibacterial, breathable, safe, and environmentally friendly. Coffee carbon fiber, a new type of nano-modified polyester fiber, boasts antibacterial and deodorizing properties, negative ion emission, UV resistance, thermal insulation, and a low-carbon, environmentally friendly design. Its affordable price has made it a highly sought-after product by consumers.

[0003] The Chinese invention patent application, with application number 202022243776.X and publication number CN 214362013 U, discloses a coffee carbon fiber raschel weft-knitted fabric. The fabric is woven using coffee carbon fiber composite yarn and polyester filament on a circular weft knitting machine. However, the coffee carbon fiber textured yarn has poor flexibility and is prone to breaking during the weaving process, making it difficult to weave and creating a beautiful, smooth pattern.

[0004] Application number 201811300255.4, publication number CN 109457482 B, discloses a method for preparing a coffee carbon warm-insulating ultra-soft trouser fabric and its ultra-soft finishing agent. The fabric is manufactured using Tencel as the warp yarn and R70 / JC30 two-ply cotton-covered spandex yarn and coffee carbon / Tencel G100 as the weft yarns. However, the co-weaving method of the warp and weft yarns results in a lengthy process, low efficiency, and a lack of elegant patterns and smooth finishes. Summary of the Invention

[0005] Therefore, in response to the above problems, the present invention provides a coffee carbon antibacterial running shoe fabric and a preparation method thereof, which solves the defects of the coffee carbon antibacterial fabric in the prior art, such as single jacquard color, undelicate pattern and uneven fabric surface.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A method for preparing coffee carbon antibacterial running shoe fabric comprises the following steps:

[0008] S1, the raw yarns are 150D / 144F coffee carbon fiber, 150D / 72F polyester DTY and 0.10 mm TPEE monofilament;

[0009] S2, dyeing the polyester DTY raw yarn;

[0010] S3, using a single jacquard warp knitting machine to weave the dyed raw yarn into a grey fabric, wherein the grey fabric has a surface layer, a spacer layer, and a bottom layer connected in sequence;

[0011] S4. The grey cloth is subjected to a pre-setting treatment at 180-200° C., and goes through the processes of tentering and setting, color approval, inspection, packaging and warehousing to obtain coffee carbon antibacterial running shoe fabric.

[0012] Further: in step S2, the dyeing method is a one-bath dyeing method.

[0013] Further: The specific process of dyeing is:

[0014] a. Dye preparation: Use disperse dye to make polyester DTY yarn appear milky white. The disperse dye is prepared by mixing disperse yellow S-6G and disperse brightener CPS-D dye. The auxiliary agents used are 0.5-0.7g / L high-temperature leveling agent and 0.3-0.4g / L buffered acid NX-306. The auxiliary solution prepared before dyeing is adjusted to a pH value of 5.5-5.7;

[0015] b. Yarn dyeing: The polyester DTY yarn is dyed using a one-bath dyeing method. At room temperature, water is injected into the dyeing machine at a bath ratio of 1:15-25, and the disperse dye and the auxiliary agent are added. The machine is circulated for 5-20 minutes. The temperature is gradually increased, first at a rate of 1.3-1.5°C / min to 100-120°C, and then after a 30-40 minute dwell time, the temperature is decreased at a rate of 1.3-1.5°C / min to 50-70°C for drainage treatment.

[0016] Furthermore, the bottom layer is formed by bottom combs GB1 and GB2 passing through coffee carbon fiber yarn, the surface layer is formed by bottom combs GB4 and GB5 passing through polyester DTY yarn, and the spacer layer is formed by jacquard combs JB3.1 and JB3.2 passing through TPEE monofilament yarn.

[0017] Furthermore, the structures of the surface layer, the bottom layer and the spacer layer are woven by two combing bars with the same or different inlay yarn numbers and warp let-off amounts.

[0018] Furthermore, the inlay yarn numbers are (5-6 / 5-4)*3 / (1-0 / 1-2)*3 / / , (1-0 / 1-2)*3 / (5-6 / 5-4)*3 / / , 1-0-1-0 / 1-2-1-2 / / , 1-0-1-0 / 1-2-1-2 / / , 1-0 / 2-3 / / , 2-1 / 0-1 / / .

[0019] Furthermore, the warp let-off is 3.5 mm / row, 3.5 mm / row, 6 mm / row three large and three small, 6 mm / row three large and three small, 4.6 mm / row, 3.6 mm / row.

[0020] The invention discloses a method for preparing coffee carbon antibacterial running shoe fabric, which is woven from coffee carbon fiber, polyester DTY and TPEE monofilament as raw materials.

[0021] The shoe material comprises a surface layer, a bottom layer, and a spacing layer for connecting the surface layer and the bottom layer.

[0022] The present invention selects raw yarns including coffee carbon fiber, polyester DTY and TPEE monofilament. The coffee grounds in the coffee carbon fiber are carbonized products obtained at high temperature, and the surface has a nano-scale porous structure. Therefore, the coffee carbon fiber has a strong adsorption effect on odor or stink, and can achieve antibacterial and deodorizing effects. Moreover, since the coffee carbon fiber itself is gray, it can be processed in the later stage without dyeing, and the product has the characteristics of energy saving and environmental protection. Then, the raw yarn is dyed, and the polyester DTY yarn is dyed with disperse dyes to achieve the diversity of jacquard color changes of the shoe fabric. Then, a single jacquard warp knitting machine is used for weaving. The formed shoe fabric includes a surface layer and a bottom layer, and a spacer layer for connecting the surface layer and the bottom layer. The fabric has air permeability and the pattern is exquisite, flat and smooth.

[0023] By adopting the above technical solution, the beneficial effects of the present invention are:

[0024] 1. The fabric obtained by the preparation method of the present invention has good antibacterial, breathable, warm and environmentally friendly properties, and at the same time has the characteristics of varied jacquard colors, exquisite patterns and a smooth surface.

[0025] 2. The raw materials of the present invention are coffee carbon fiber, polyester DTY and TPEE monofilament, so as to achieve good antibacterial, breathable, warm and environmentally friendly effects. The principle is as follows: coffee carbon fiber is made of discarded coffee grounds, which are calcined at 1000 ° C to make the crystals and pores of the coffee grounds present the best state. Nanotechnology is used to micronize it and grind it into 100-300nm nano-scale powder, which is then blended with polyester by spinning. The cross section of the coffee carbon fiber is irregularly elliptical, and there are tiny particles in the cross section, with a clear cavity structure and certain gaps; the longitudinal shape is cylindrical, and there are also many tiny particles on the surface. These structures are conducive to the adsorption effect of coffee carbon fiber, which can quickly absorb water vapor and sweat produced by the human body and quickly diffuse outward, thereby keeping the inside of the shoe comfortable and dry, inhibiting the growth and reproduction of foot fungi and bacteria, and reflecting the excellent performance of coffee carbon fiber upper in air permeability, moisture permeability, water absorption and antibacterial deodorization. When coffee carbon fiber absorbs heat radiation from the human body or the outside world, it radiates far-infrared light with a wavelength range of 2.5-30μm through molecular energy level transitions. This can cause resonance in cellular molecules, generating a thermal effect and achieving a warming effect. Because coffee carbon fiber itself is gray, it can be processed without dyeing, making it energy-saving and environmentally friendly.

[0026] 3. The present invention adopts a one-bath dyeing method using disperse dyes and auxiliaries to dye yarns, thereby achieving a variety of jacquard color changes in shoe fabrics. The principle is as follows: disperse dyes are a type of dye with relatively small molecules and no water-soluble groups in their structure. During dyeing, with the help of dispersants, the dyes are evenly dispersed in the dye solution to dye polyester DTY yarns.

[0027] 4. The present invention adopts a single jacquard warp knitting machine for weaving, so as to achieve exquisite, smooth and even patterns of shoe materials. The principle is: a single jacquard warp knitting machine is adopted, combined with a creel device with semi-automatic jacquard yarn tension control. The machine tension rod spring is long and elastic, and can switch between different yarn tensions to meet the high tension adjustment of TPEE yarn and coffee carbon fiber yarn. The warp yarn breakage rate in the weaving process is very low, and the pattern style is exquisite, smooth and even.

[0028] a. Dye preparation: Use disperse dye to make polyester DTY yarn appear milky white. The disperse dye is prepared by mixing disperse yellow S-6G and disperse brightener CPS-D dye. The auxiliary agents are 0.5-0.7g / L high-temperature leveling agent and 0.3-0.4g / L buffered acid NX-306. The auxiliary solution prepared before dyeing is adjusted to a pH value of 5.5-5.7, which is weakly acidic.

[0029] b. Yarn dyeing: The polyester DTY yarn is dyed using a one-bath dyeing method. At room temperature, water is injected into the dyeing machine at a bath ratio of 1:15-25, and the disperse dye and the auxiliary agent are added. The machine is circulated for 5-20 minutes. The temperature is gradually increased, first at a rate of 1.3-1.5°C / min to 100-120°C, and then after a 30-40 minute dwell time, the temperature is decreased at a rate of 1.3-1.5°C / min to 50-70°C for drainage treatment. DETAILED DESCRIPTION

[0030] Example 1

[0031] A method for preparing coffee carbon antibacterial running shoe fabric comprises the following steps:

[0032] (1) Selection of raw materials: The raw yarns are coffee carbon fiber with specifications of 150D / 144F, polyester DTY with specifications of 150D / 72F and 0.10 mm TPEE monofilament;

[0033] (2) Dyeing: The fabric is dyed using disperse dyes and auxiliaries in the same bath. The dyeing machine model is HEA-4-1000 Donggeng machine to achieve the diversity of jacquard color changes of shoe fabrics, that is,

[0034] (2-1) Dye preparation: Disperse dye was used to make polyester DTY yarn appear milky white. The disperse dye was prepared by mixing disperse yellow S-6G and disperse brightener CPS-D dye in a weight ratio of 1:1. Auxiliary agents used were 0.5 g / L high-temperature leveling agent and 0.3 g / L buffered acid NX-306. The auxiliary solution prepared before dyeing was adjusted to a pH of 5.5 to be weakly acidic.

[0035] (2-2) Yarn dyeing: The polyester DTY yarn is dyed using a one-bath dyeing method. Water is injected into the dyeing machine at a bath ratio of 1:15 at room temperature, and the disperse dye and the auxiliary agent are added. The dyeing machine is circulated for 20 minutes. The temperature is gradually increased, first at a rate of 1.5°C / min to 120°C, and then after a 30-minute dwell time, the temperature is decreased at a rate of 1.5°C / min to 70°C for drainage.

[0036] (2-3) Finishing after dyeing: After dyeing is completed, the dye liquid in the dyeing machine is discharged and water is repeatedly added to the dyeing machine for cleaning until the dye liquid in the yarn in the dyeing machine is completely washed out; then the yarn in the dyeing machine is taken out and placed in a cart for transportation to the centrifugal dehydrator, and the yarn is introduced into the centrifugal dehydrator through the cloth drop rack for dehydration; after dehydration is completed, the yarn in the centrifugal dehydrator is taken out through the cloth drop rack, placed in a cart for transportation to the untwisting and width-opening machine, and the rope-shaped cloth is untwisted and width-opened, and then dried;

[0037] (3) Weaving: Using E24 needle RDPJ6 / 1 single jacquard warp knitting machine for weaving, a warp knitted shoe material fabric with antibacterial function is formed, including a surface layer and a bottom layer, and a spacer layer for connecting the surface layer and the bottom layer, so as to achieve the air permeability of the shoe material fabric and the exquisite and smooth pattern, that is,

[0038] (3-1) Comb bar numbering and yarn threading parameters: The bottom layer is formed by bottom combs GB1 and GB2 threading coffee carbon fiber yarn, the surface layer is formed by bottom combs GB4 and GB5 threading polyester DTY yarn, and the spacer layer is formed by jacquard combs JB3.1 and JB3.2 threading TPEE monofilament yarn;

[0039] (3-2) Inlay yarn numbers: (5-6 / 5-4)*3 / (1-0 / 1-2)*3 / / , (1-0 / 1-2)*3 / (5-6 / 5-4)*3 / / , 1-0-1-0 / 1-2-1-2 / / , 1-0-1-0 / 1-2-1-2 / / , 1-0 / 2-3 / / , 2-1 / 0-1 / / ;

[0040] (3-3) Let-off: GB1 is 3.5mm / row, GB2 is 3.5mm / row, JB3.1 is 6mm / row with three large and three small warps, JB3.2 is 6mm / row with three large and three small warps, GB4 is 4.6mm / row, GB5 is 3.6mm / row;

[0041] (4) Shaping: The woven grey fabric is pre-shaped at 200°C using a ST8200HO Taiwan Ligen shaping machine. The grey fabric is fed into the shaping machine in the reverse weaving direction. The input speed of the fabric is set at 18m / min. The fabric is shaped in multiple dry heat closed ovens. The shaped fabric is cooled and pre-shaped. After the stretching and shaping, color approval, inspection, packaging and storage process, the warp knitted fabric is obtained.

[0042] In addition, the bath ratio range of step S2 of the present invention is 1:15-25. Within this range, the purpose of the present invention can be achieved.

[0043] The coffee carbon antibacterial running shoe fabric obtained by the above preparation method comprises a surface layer, a bottom layer, and a spacer layer for connecting the surface layer and the bottom layer.

[0044] Comparative Example 1

[0045] Polyester yarn is used as the raw material and the same processing method as in Example 1 is adopted, that is, coffee carbon fiber, polyester DTY and TPEE monofilament are not selected as the raw materials, and commercially known polyester yarn is used as the raw material yarn. Other technical solutions are the same as in Example 1.

[0046] The performance test results of the product of Example 1 and the product of Comparative Example 1 are shown in the following table.

[0047] Table 1-1

[0048]

[0049] Yellowing resistance: tested according to HG / T3689-2014;

[0050] Degradable harmful aromatic amine dyes: tested according to QB / T 17592-2011;

[0051] Antibacterial properties (Candida albicans), %: QB / T 20944.3-2008 test;

[0052] Antibacterial performance (Escherichia coli), %: tested according to QB / T 20944.3-2008;

[0053] Antibacterial performance (Staphylococcus aureus), %: tested according to QB / T 20944.3-2008;

[0054] Formaldehyde, mg / kg: tested according to QB / T 2912.1-2009;

[0055] pH value: tested according to QB / T 7573-2009;

[0056] Tear strength: tested according to QB / T 2883-2007;

[0057] Folding resistance: QB / T 3903.41-2019 test.

[0058] From the test data in Table 1-1, we can see that:

[0059] The fabric of Example 1 exhibited good antibacterial properties against Candida albicans, Escherichia coli, and Staphylococcus aureus at 85%, 98%, and 99%, respectively. Its yellowing resistance reached a level of 4-5, demonstrating excellent yellowing resistance. Test results for degradable harmful aromatic amine dyes and formaldehyde showed no detection, demonstrating environmental and safety characteristics. The maximum tear force in the warp and weft directions reached 116N and 74N, respectively, demonstrating good tear resistance. Folding resistance tests showed that the specimens remained intact in both the warp and weft directions, demonstrating good folding resistance.

[0060] Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the present invention.

Claims

1. A method for preparing coffee carbon antibacterial running shoe fabric, characterized in that: The steps include: S1, the raw yarns are coffee carbon fiber with specifications of 150D / 144F, polyester DTY with specifications of 150D / 72F and TPEE monofilament with specifications of 0.10 mm; S2, dyeing the polyester DTY raw yarn; S3, using a single jacquard warp knitting machine to weave the dyed raw yarn into a grey cloth, wherein the grey cloth has a surface layer, a spacer layer and a bottom layer connected in sequence; S4, pre-setting the grey cloth at 180-200° C., and undergoing the processes of tentering, setting, color approval, inspection, packaging and warehousing to obtain coffee carbon antibacterial running shoe fabric.

2. The method for preparing a coffee carbon antibacterial running shoe fabric according to claim 1, characterized in that: In step S2, the polyester DTY dyeing treatment method is a one-bath dyeing method.

3. The method for preparing a coffee carbon antibacterial running shoe fabric according to claim 2, characterized in that: The specific process of polyester DTY dyeing is: a. Dye preparation: Use disperse dyes to make polyester DTY yarn appear milky white. The disperse dyes are prepared by mixing disperse yellow S-6G and disperse brightener CPS-D dyes. The auxiliary agents are 0.5-0.7g / L high-temperature leveling agent and 0.3-0.4g / L buffered acid NX-306. The auxiliary agent solution prepared before dyeing is adjusted to a pH value of 5.5-5.7; b. Yarn dyeing: The polyester DTY yarn is dyed by a one-bath dyeing method. At room temperature, water is injected into the dyeing machine at a bath ratio of 1:15-25, and the disperse dye and the auxiliary agent are added. The machine is circulated for 5-20 minutes. The temperature is increased stepwise, firstly at a rate of 1.3-1.5°C / min to 100-120°C, and after staying for 30-40 minutes, the temperature is decreased to 50-70°C at a rate of 1.3-1.5°C / min for drainage treatment.

4. The method for preparing a coffee carbon antibacterial running shoe fabric according to claim 1, characterized in that: The bottom layer is formed by bottom combs GB1 and GB2 through which coffee carbon fiber yarns are passed; the surface layer is formed by bottom combs GB4 and GB5 through which polyester DTY yarns are passed; and the spacer layer is formed by jacquard combs JB3.1 and JB3.2 through which TPEE monofilament yarns are passed.

5. The method for preparing a coffee carbon antibacterial running shoe fabric according to claim 1, characterized in that: The structures of the surface layer, the bottom layer and the spacer layer are woven by two combing bars with the same or different inlay yarn numbers and warp let-off amounts.

6. The method for preparing a coffee carbon antibacterial running shoe fabric according to claim 5, characterized in that: The inlay yarn numbers are (5-6 / 5-4)*3 / (1-0 / 1-2)*3 / / , (1-0 / 1-2)*3 / (5-6 / 5-4)*3 / / , 1-0-1-0 / 1-2-1-2 / / , 1-0-1-0 / 1-2-1-2 / / , 1-0 / 2-3 / / , 2-1 / 0-1 / / .

7. The method for preparing the coffee carbon antibacterial running shoe fabric according to claim 6, characterized in that: The warp let-off amount is 3.5mm / horizontal row, 3.5mm / horizontal row, 6mm / horizontal row three large and three small, 6mm / horizontal row three large and three small, 4.6mm / horizontal row, 3.6mm / horizontal row.

8. A method for preparing coffee carbon antibacterial running shoe fabric, characterized in that: It is woven with 150D / 144F coffee carbon fiber, 150D / 72F polyester DTY and 0.10 mm TPEE monofilament as raw yarns.

9. The method for preparing a coffee carbon antibacterial running shoe fabric according to claim 8, characterized in that: The shoe material comprises a surface layer, a bottom layer, and a spacing layer for connecting the surface layer and the bottom layer.

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