A production method for improving creases of environmentally friendly yarn breathable fabrics

Abstract

The present invention relates to the technical field of fabric production, and in particular to a method for producing an environmentally friendly yarn breathable fabric with improved creases. The production method comprises the following steps: a shrinking process, a refining process, a predetermined process, a dyeing process, a reduction cleaning process and a setting process are sequentially performed on the grey cloth, and water-based sewing thread oil is added in the setting process. The production method improves the anti-friction performance between yarns on the cloth surface by adding water-based sewing thread oil in the setting process, prevents the problem of creases on the cloth surface, and does not form oil spots that affect the appearance of the cloth surface.

Description

Technical Field

[0001] The invention relates to the technical field of fabric production, and in particular to a method for producing an environmentally friendly yarn breathable fabric with improved creases. Background Art

[0002] Bird's eye fabric, as shown in application number 202122003127.7, can be made of weft yarns and has excellent air permeability and perspiration wicking properties, and is widely used in sportswear. Currently, 100% polyester recycled yarns can be used to weft knit bird's eye fabrics (environmentally friendly yarn breathable fabrics) on the market, but this type of bird's eye fabric feels harder. Compared with other fabrics, this type of bird's eye fabric has a larger weight and is easy to wrinkle during the production process, and produces obvious creases and chicken claw marks after refining. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a method for producing an environmentally friendly yarn breathable fabric with improved creases.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a method for producing environmentally friendly yarn breathable fabrics with improved creases, comprising the following steps: a shrinking process, a refining process, a predetermined process, a dyeing process, a reduction cleaning process and a setting process for the grey cloth in sequence, and water-based sewing thread oil is added in the setting process.

[0005] The beneficial effect of the present invention is that the production method of the present invention improves the anti-friction performance between yarns on the cloth surface by adding water-based sewing thread oil in the setting process, prevents the problem of cloth surface creases, and does not form oil spots that affect the appearance of the cloth surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is a surface diagram of the finished cloth in Example 1 of the present invention; Figure 2 This is a surface diagram of the finished cloth in Comparative Example 1 of the present invention. DETAILED DESCRIPTION

[0007] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0008] A method for producing an environmentally friendly yarn breathable fabric with improved creases comprises the following steps: sequentially performing a shrinking process, a refining process, a pre-setting process, a dyeing process, a reduction cleaning process and a setting process on a grey cloth, and adding water-based sewing thread oil in the setting process.

[0009] From the above description, it can be seen that the beneficial effects of the present invention are: the production method of the present invention adds water-based sewing thread oil in the setting process, and the water-based sewing thread oil has the advantages of small surface tension, high lubricity and good cohesion, which can effectively improve the anti-friction performance between the yarns on the cloth surface, prevent the phenomenon of frictional breakage, and prevent the problem of cloth surface creases. In addition, the water-soluble oil will not be deposited on the cloth surface to form oil spots, thereby ensuring the quality of the cloth surface. The present invention adds a refining process before refining, so that the pre-treatment and oil removal of the cloth surface is relatively uniform, the cloth surface is neat, and it is not easy to cause creases, chicken claw marks and other problems due to uneven oil content on the cloth surface during refining in the cylinder.

[0010] Furthermore, when the grey cloth is woven, a blade is used to cut the yarn, and the blade thickness of the blade is less than 1 mm.

[0011] From the above description, it can be seen that the environmentally friendly yarn breathable fabric of the present invention is a single-sided fabric structure, and the yarn tension on both sides is uneven and asymmetrical. Wrinkles in the same direction for a long time will make the fabric unable to recover to its original flatness. The creases caused by the flatness of the package are difficult to improve and restore through finishing and dyeing. Therefore, tension wheels, blades and other devices are used as much as possible to adjust the yarn tension during the weaving process.

[0012] During the weaving process, when weaving starts or ends or when a yarn problem occurs, the blade can be used to quickly and accurately cut the yarn. The invention uses a thinner blade to reduce damage to the yarn.

[0013] Furthermore, the weaving specifications are: 34 needles in the needle cylinder, 28 needle gauge, and 60 total warps.

[0014] From the above description, it can be seen that the present invention adjusts the tightness of weaving during the weaving process. The greater the twist of the yarn, the tighter the weaving, the greater the stress of the grey cloth shrinking inwards, and the easier it is to produce creases.

[0015] Furthermore, a tension wheel is used to adjust the tension of the yarn during weaving of the grey cloth, the diameter of the tension wheel is 20-50 mm, and the tension of the yarn is 30-150 gf.

[0016] From the above description, it can be seen that the tension wheel of the present invention enables the yarn to maintain stable tension during weaving, prevents the yarn from loosening or being overly tight, ensures the uniform structure of the fabric, and avoids the phenomenon of uneven density of the fabric; it can also absorb the vibration generated when the yarn moves, so that the yarn runs smoothly and reduces weaving defects.

[0017] Furthermore, in the reduction process, the temperature is first increased and then decreased.

[0018] From the above description, it can be seen that the environmentally friendly yarn breathable fabric of the present invention is a single-sided fabric structure, and the fabric surface is uneven, resulting in inconsistent shrinkage rates in all directions of the fabric surface, inconsistent shrinkage effects and flatness of the fabric surface, and rapid high temperatures can easily cause excessive weft shrinkage and form creases, so the temperature needs to be increased first and then decreased.

[0019] Furthermore, the shrinking process adopts loose cloth arrangement.

[0020] Furthermore, a sewing machine is used to sew the cloth ends before the refining process.

[0021] From the above description, it can be seen that the environmentally friendly yarn breathable fabric of the present invention has a large gram weight, and hand-made joints will cause the fabric surface to deform, resulting in uneven force on the cloth ends, and inconsistent shrinkage of the cloth surface during the heating and cooling process, which is easy to cause creases and chicken claw marks. Therefore, a sewing machine is required to sew the cloth ends.

[0022] Furthermore, the dyeing process is specifically as follows: first, the temperature is increased to 75-85°C at a heating rate of 1.3-1.7°C / min, then the temperature is increased to 93-97°C at a heating rate of 0.3-0.7°C / min and kept warm for 8-12 minutes, then the temperature is increased to 103-107°C at a heating rate of 0.3-0.7°C / min and kept warm for 8-12 minutes, then the temperature is increased to 125-135°C at a heating rate of 0.8-1.2°C / min and kept warm for 30-40 minutes, and then the temperature is decreased to 70-80°C at a cooling rate of 0.8-1.2°C / min for drainage.

[0023] From the above description, it can be seen that the speed of heating and cooling and the temperature of drainage will produce dyeing creases. The present invention minimizes the accumulation of fabric in the dyeing tank by strictly controlling the running speed of the cloth, the heating and cooling rate and the drainage temperature during dyeing.

[0024] Since the temperature of environmentally friendly yarn is between 70 and 130℃, the internal structure is greatly affected by temperature. In order to prevent the rapid heating and cooling from causing creases on the environmentally friendly yarn, the heating and cooling rate is reduced from the original 1.3~1.7℃ / min to 0.3~1.2℃ / min to reduce the problem of creases caused by excessive shrinkage of the fabric due to rapid heating and cooling.

[0025] Furthermore, the bath ratio of the dyeing process is 1:11~12.

[0026] From the above description, it can be seen that the present invention adopts a large bath ratio to ensure that the fabric is not piled up in the dyeing vat, thereby reducing pile creases.

[0027] Furthermore, the machine speed of the dyeing process is 180~220m / min.

[0028] From the above description, it can be seen that the high running speed ensures that the cloth runs smoothly, does not pile up for a long time, and reduces pile creases.

[0029] Furthermore, a repairing agent is added during the dyeing process.

[0030] From the above description, it can be seen that the repair agent can slow down the dyeing speed, prevent color spots, and reduce the color difference at the wrinkles of the cloth.

[0031] Furthermore, the predetermined process temperature is 180~220°C, the machine speed is 16~20m / min, and the air volume is 70~90%.

[0032] Furthermore, the temperature of the process is set to 120-140°C, the machine speed is set to 18-22 m / min, and the air volume is set to 70-90%.

[0033] From the above description, it can be seen that the fabric of the present invention has a larger gram weight. Using a larger air volume during shaping can increase the air flow inside the shaping machine, making it easier to take away moisture, thereby achieving rapid shaping of the fabric surface and making the fabric surface smooth, thereby preventing the fabric surface from being not opened in time, causing color to be deposited in the folds and producing color creases.

[0034] Furthermore, the dosage of the water-based sewing thread oil is 1.8~2.2g / L.

[0035] Embodiment 1 of the present invention is: a method for producing an environmentally friendly yarn breathable fabric with improved creases, the steps are as follows: S1. Weaving: The grey cloth is composed of 73.87wt% semi-gloss 150D / 144F polyester environmentally friendly recycled light mesh DTY-S+Z and 26.13wt% white semi-gloss 100D / 144F (50D / 72F / 2) polyester light mesh environmentally friendly recycled DTY. The yarn is cut by a blade in the weaving process. The blade thickness is less than 1mm. The needle cylinder has 34 needles, the needle pitch is 28, and the total warp number is 60. The tension of the yarn is adjusted by a tension wheel during weaving. The diameter of the tension wheel is 40mm, and the tension of the yarn is 100gf.

[0036] S2. Shrinking process: loose cloth sorting and J-box cloth feeding are adopted for shrinking. The shrinking process is carried out in a shrinking machine. The shrinking machine includes 7 water tanks arranged in sequence. The temperatures of the 7 water tanks are 50℃, 75℃, 95℃, 90℃, 90℃, 60℃ and 55℃ respectively.

[0037] S3, refining process: in the Ithaca overflow dyeing machine, using a sewing machine to sew the cloth ends, adding 3g / L soft wrinkle-proof agent PERSOFTALL02 and 1g / L degreasing agent AFN, the bath ratio is 1:11, the water level is 8000L; firstly, the temperature is raised to 90℃ at a heating rate of 0.7℃ / min, then the temperature is raised to 100℃ at a heating rate of 1℃ / min and kept at this temperature for 20min, and then the temperature is lowered to 60℃ at a cooling rate of 0.7℃ / min; The specific parameters of the machine are: nozzle 110mm, cloth lifting wheel speed 200m / min, main pump 65%, circle time 110s.

[0038] S4, scheduled process: carried out in Monfushi hot air stentering machine, temperature is 200℃, speed is 18m / min, air volume is 80%, specification is 165mm×280g / m 2 .

[0039] S5, dyeing process: in an Ithaca overflow dyeing machine, the bath ratio is 1:11, the water level is 8000L, the temperature is first raised to 80°C at a heating rate of 1.5°C / min, then raised to 95°C at a heating rate of 0.5°C / min and kept warm for 10min, then raised to 105°C at a heating rate of 0.5°C / min and kept warm for 10min, then raised to 130°C at a heating rate of 1°C / min and kept warm for 35min, then lowered to 75°C at a cooling rate of 1°C / min and drained; the materials added for dyeing are shown in Table 1; The specific parameters of the machine are: nozzle 110mm, cloth lifting wheel speed 200m / min, main pump 65%, circle time 110s.

[0040] Table 1

[0041] S6. Reduction cleaning process: It is carried out in an Ithaca overflow dyeing machine at a temperature of 85°C for 20 minutes, with the addition of 1g / L soda ash and 3g / L hydrosulfite.

[0042] S7, pickling process: carried out in an Ithaca overflow dyeing machine at a temperature of 60°C for 10 minutes, adding 0.5 g / L glacial acetic acid.

[0043] S8, setting process: carried out in the Monforts hot air stenter setting machine, adding 2g / L water-based sewing thread oil, temperature 130℃, machine speed 20m / min, air volume 80%, specification 163mm×275g / m 2 The finished fabric is shown in Figure 1 .

[0044] The specifications of the fabric after each process are shown in Table 2 (standard requirements: 142cm×245g / m 2 ).

[0045] Table 2

[0046] From Table 2 and Figure 1 It can be seen that the finished product obtained by the production method of the present invention has a smooth overall surface, no creases, and no chicken claw marks.

[0047] Comparative Example 1 of the present invention is: a method for producing an environmentally friendly yarn breathable fabric with improved creases, the steps are as follows: S1. Weaving: The grey cloth is composed of 73.87wt% semi-gloss 150D / 144F polyester environmentally friendly recycled light mesh DTY-S+Z and 26.13wt% white semi-gloss 100D / 144F (50D / 72F / 2) polyester light mesh environmentally friendly recycled DTY. The yarn is cut by a blade in the weaving process. The blade thickness is less than 1mm. The needle cylinder has 34 needles, the needle pitch is 28, and the total warp number is 60. The tension of the yarn is adjusted by a tension wheel during weaving. The diameter of the tension wheel is 40mm, and the tension of the yarn is 100gf.

[0048] S3, refining process: in the Ithaca overflow dyeing machine, using the sewing machine to sew the cloth ends, adding 3g / L anti-wrinkle agent DK309 and 1g / L degreasing agent AFN in the bath, the bath ratio is 1:11, the water level is 8000L; heating up to 100℃ at a heating rate of 1.5℃ / min and keeping warm for 20min; The specific parameters of the machine are: nozzle 90mm, cloth lifting wheel speed 240m / min, main pump 75%, circle time 110s.

[0049] S4, scheduled process: carried out in Monfushi hot air stentering machine, temperature is 200℃, speed is 18m / min, air volume is 80%, specification is 165mm×280g / m 2 .

[0050] S5, dyeing process: in an Ithaca overflow dyeing machine, the bath ratio is 1:11, the water level is 8000L, the temperature is increased to 130℃ at a heating rate of 1.5℃ / min, and the temperature is kept at 130℃ for 35 min, and then the temperature is reduced to 75℃ at a cooling rate of 1.5℃ / min for drainage; the materials added for dyeing are shown in Table 3; The specific parameters of the machine are: nozzle 90mm, cloth lifting wheel speed 240m / min, main pump 75%, circle time 100~120s.

[0051] Table 3

[0052] S6. Reduction cleaning process: It is carried out in an Ithaca overflow dyeing machine at a temperature of 85°C for 20 minutes, with the addition of 1g / L soda ash and 3g / L hydrosulfite.

[0053] S7, pickling process: carried out in an Ithaca overflow dyeing machine at a temperature of 60°C for 10 minutes, adding 0.5 g / L glacial acetic acid.

[0054] S8, setting process: carried out in Monforts hot air stenter setting machine, temperature is 130℃, machine speed is 20m / min, air volume is 80%, specification is 163mm×275g / m 2 The finished fabric is shown in Figure 2 .

[0055] Embodiment 2 of the present invention is: a method for producing an environmentally friendly yarn breathable fabric with improved creases, the steps are as follows: S1. Weaving: The grey cloth is composed of 73.87wt% semi-gloss 150D / 144F polyester environmentally friendly recycled light mesh DTY-S+Z and 26.13wt% white semi-gloss 100D / 144F (50D / 72F / 2) polyester light mesh environmentally friendly recycled DTY. During the weaving process, a blade is used to cut the yarn, and the blade thickness of the blade is less than 1mm. During weaving, a tension wheel is used to adjust the tension of the yarn. The diameter of the tension wheel is 20mm, and the tension of the yarn is 30gf.

[0056] S2. Shrinking process: loose cloth sorting and J-box cloth feeding are adopted for shrinking. The shrinking process is carried out in a shrinking machine. The shrinking machine includes 7 water tanks arranged in sequence. The temperatures of the 7 water tanks are 50℃, 75℃, 95℃, 90℃, 90℃, 60℃ and 55℃ respectively.

[0057] S3, refining process: in the Ithaca overflow dyeing machine, using a sewing machine to sew the cloth ends, adding 3g / L of anti-wrinkle agent DK309 and 1g / L of degreasing agent AFN in the bath, the bath ratio is 1:11, and the water level is 8000L; firstly, the temperature is raised to 90℃ at a heating rate of 0.7℃ / min, then the temperature is raised to 100℃ at a heating rate of 1℃ / min and kept at this temperature for 20min, and then the temperature is lowered to 60℃ at a cooling rate of 0.7℃ / min; The specific parameters of the machine are: nozzle 110mm, cloth lifting wheel speed 200m / min, main pump 65%, circle time 100s.

[0058] S4, scheduled process: carried out in Monforts hot air stentering machine, temperature 180℃, machine speed 16m / min, air volume 70%, specification 165mm×280g / m 2 .

[0059] S5, dyeing process: in an Ithaca overflow dyeing machine, the bath ratio is 1:11, the water level is 8000L, the temperature is first raised to 75°C at a heating rate of 1.3°C / min, then raised to 93°C at a heating rate of 0.3°C / min and kept warm for 12min, then raised to 103°C at a heating rate of 0.3°C / min and kept warm for 12min, then raised to 125°C at a heating rate of 0.8°C / min and kept warm for 40min, then lowered to 70°C at a cooling rate of 0.8°C / min and drained; the materials added for dyeing are shown in Table 4; The specific parameters of the machine are: nozzle 110mm, cloth lifting wheel speed 180m / min, main pump 65%, circle time 100s.

[0060] Table 4

[0061] S6. Reduction cleaning process: It is carried out in an Ithaca overflow dyeing machine at a temperature of 85°C for 20 minutes, with the addition of 1g / L soda ash and 3g / L hydrosulfite.

[0062] S7, pickling process: carried out in an Ithaca overflow dyeing machine at a temperature of 60°C for 10 minutes, adding 0.5 g / L glacial acetic acid.

[0063] S8, setting process: carried out in the Monforts hot air stenter setting machine, adding 1.8g / L water-based sewing thread oil, temperature 120℃, machine speed 18m / min, air volume 70%, specification 163mm×275g / m 2 .

[0064] Embodiment 3 of the present invention is: a method for producing an environmentally friendly yarn breathable fabric with improved creases, the steps are as follows: S1. Weaving: The grey cloth is composed of 73.87wt% semi-gloss 150D / 144F polyester environmentally friendly recycled light mesh DTY-S+Z and 26.13wt% white semi-gloss 100D / 144F (50D / 72F / 2) polyester light mesh environmentally friendly recycled DTY. The yarn is cut by a blade in the weaving process, and the blade thickness of the blade is less than 1mm. The tension of the yarn is adjusted by a tension wheel during weaving. The diameter of the tension wheel is 0mm and the tension of the yarn is 150gf.

[0065] S2. Shrinking process: loose cloth sorting and J-box cloth feeding are adopted for shrinking. The shrinking process is carried out in a shrinking machine. The shrinking machine includes 7 water tanks arranged in sequence. The temperatures of the 7 water tanks are 50℃, 75℃, 95℃, 90℃, 90℃, 60℃ and 55℃ respectively.

[0066] S3, refining process: in the Ithaca overflow dyeing machine, using a sewing machine to sew the cloth ends, adding 3g / L of anti-wrinkle agent DK309 and 1g / L of degreasing agent AFN in the bath, the bath ratio is 1:11, and the water level is 8000L; firstly, the temperature is raised to 90℃ at a heating rate of 0.7℃ / min, then the temperature is raised to 100℃ at a heating rate of 1℃ / min and kept at this temperature for 20min, and then the temperature is lowered to 60℃ at a cooling rate of 0.7℃ / min; The specific parameters of the machine are: nozzle 110mm, cloth lifting wheel speed 200m / min, main pump 65%, circle time 120s.

[0067] S4, scheduled process: carried out in Monforts hot air stentering machine, temperature 220℃, machine speed 20m / min, air volume 90%, specification 165mm×280g / m 2 .

[0068] S5, dyeing process: in an Ithaca overflow dyeing machine, the bath ratio is 1:12, the water level is 8000L, first the temperature is raised to 85°C at a heating rate of 1.7°C / min, then the temperature is raised to 97°C at a heating rate of 0.7°C / min and kept warm for 8min, then the temperature is raised to 107°C at a heating rate of 0.7°C / min and kept warm for 8min, then the temperature is raised to 135°C at a heating rate of 1.2°C / min and kept warm for 30min, then the temperature is lowered to 70-80°C at a cooling rate of 1.2°C / min and drained; the materials added for dyeing are shown in Table 5; The specific parameters of the machine are: nozzle 110mm, cloth lifting wheel speed 220m / min, main pump 65%, circle time 120s.

[0069] Table 5

[0070] S6. Reduction cleaning process: It is carried out in an Ithaca overflow dyeing machine at a temperature of 85°C for 20 minutes, with the addition of 1g / L soda ash and 3g / L hydrosulfite.

[0071] S7, pickling process: carried out in an Ithaca overflow dyeing machine at a temperature of 60°C for 10 minutes, adding 0.5 g / L glacial acetic acid.

[0072] S8, setting process: carried out in the Monforts hot air stenter setting machine, adding 2.2g / L water-based sewing thread oil, temperature 140℃, machine speed 22m / min, air volume 90%, specification 163mm×275g / m 2 .

[0073] In summary, the method for producing an environmentally friendly yarn breathable fabric with improved creases provided by the present invention has the following advantages: 1. Add water-based sewing thread oil during the finishing process to prevent the thread from breaking and creases caused by friction on the fabric.

[0074] 2. Add a shrinking process before refining to reduce problems such as creases and chicken claw marks caused by uneven oil content on the cloth during refining.

[0075] 3. The shrinking temperature should be increased first and then decreased to avoid creases caused by rapid high temperature.

[0076] 4. Use a sewing machine to sew cloth ends to reduce creases caused by uneven force on the cloth ends.

[0077] 5. By strictly controlling the running speed, heating and cooling rate and drainage temperature of the cloth during dyeing, a large bath ratio and a high running speed are used to minimize the accumulation of fabrics in the dyeing tank and reduce pile creases.

[0078] 6. Use a larger air volume during shaping to achieve rapid shaping of the fabric surface and avoid color creases.

[0079] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for producing an environmentally friendly yarn breathable fabric with improved creases, characterized in that: The following steps are involved: The method comprises a shrinking process, a refining process, a presetting process, a dyeing process, a reduction cleaning process and a setting process for the grey cloth in sequence, and water-based sewing thread oil is added in the setting process.

2. The method for producing an environmentally friendly yarn breathable fabric with improved creases according to claim 1, characterized in that: When the grey cloth is woven, a blade is used to cut the yarn, and the blade thickness of the blade is less than 1 mm.

3. The method for producing an environmentally friendly yarn breathable fabric with improved creases according to claim 1, characterized in that: When the grey cloth is weaved, a tension wheel is used to adjust the tension of the yarn, the diameter of the tension wheel is 20-50 mm, and the tension of the yarn is 30-150 gf.

4. The method for producing an environmentally friendly yarn breathable fabric with improved creases according to claim 1, characterized in that: Before the refining process, the cloth ends are sewn together using a sewing machine.

5. The method for producing an environmentally friendly yarn breathable fabric with improved creases according to claim 1, characterized in that: The dyeing process is specifically as follows: firstly, the temperature is increased to 75-85°C at a temperature increase rate of 1.3-1.7°C / min, then the temperature is increased to 93-97°C at a temperature increase rate of 0.3-0.7°C / min and kept warm for 8-12min, then the temperature is increased to 103-107°C at a temperature increase rate of 0.3-0.7°C / min and kept warm for 8-12min, then the temperature is increased to 125-135°C at a temperature increase rate of 0.8-1.2°C / min and kept warm for 30-40min, and then the temperature is decreased to 70-80°C at a temperature decrease rate of 0.8-1.2°C / min for drainage.

6. The method for producing an environmentally friendly yarn breathable fabric with improved creases according to claim 1, characterized in that: The bath ratio of the dyeing process is 1:11-12.

7. The method for producing an environmentally friendly yarn breathable fabric with improved creases according to claim 1, characterized in that: The machine speed of the dyeing process is 180-220 m / min.

8. The method for producing an environmentally friendly yarn breathable fabric with improved creases according to claim 1, characterized in that: The temperature of the predetermined process is 180-220° C., the machine speed is 16-20 m / min, and the air volume is 70-90%.

9. The method for producing an environmentally friendly yarn breathable fabric with improved creases according to claim 1, characterized in that: The temperature of the setting process is 120-140°C, the machine speed is 18-22m / min, and the air volume is 70-90%.

10. The method for producing an environmentally friendly yarn breathable fabric with improved creases according to claim 1, characterized in that: The dosage of the water-based sewing thread oil is 1.8-2.2 g / L.

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