Preparation method of elastic band with low shrinkage rate
A technology of elastic belt and shrinkage rate, which is applied in the field of elastic fabrics, can solve the problems of complex process and low shrinkage rate, and achieve the effects of high color fastness, low shrinkage rate and excellent product performance
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Embodiment 1
[0028] The preparation method of low shrinkage elastic belt comprises the steps:
[0029] S1. Weaving: Among them, the yarn adopts nylon / spandex covered yarn method, twisted to 600 twists first, and then untwisted to 500 twists, and the twist direction is Z twist.
[0030] S2. Retraction: Natural retraction is adopted, the temperature is 26°C, and the air humidity is 20%. Natural retraction 24h.
[0031] S3. Drying: drying the naturally retracted elastic belt, the drying temperature is 70° C., and the drying time is 3 hours.
[0032] S4. Dyeing: dyeing the dried elastic band, immersing the dried elastic band in a dyeing tank to obtain the primary dyed elastic band, and finally washing with water to obtain the washed elastic band.
[0033] Among them, the dyeing tank includes the following components in terms of water volume: acid leveling agent ES 20g / L, acid penetrating agent FL10g / L, and is dyed at room temperature.
[0034] And during water washing, described first-dyed ...
Embodiment 2
[0042] The preparation method of low shrinkage elastic belt comprises the steps:
[0043] S1. Weaving: Among them, the yarn adopts the nylon / spandex covered yarn method, which is first twisted to 700 twists, and then untwisted to 600 twists, and the twist direction is Z twist.
[0044] S2. Retraction: adopt natural retraction, the temperature is 23°C, and the air humidity is 24%. Natural retraction 20h.
[0045] S3. Drying: drying the naturally retracted elastic belt, the drying temperature is 70° C., and the drying time is 2 hours. S4. Dyeing: dyeing the dried elastic band, immersing the dried elastic band in a dyeing tank to obtain the primary dyed elastic band, and finally washing with water to obtain the washed elastic band.
[0046] Among them, the dyeing tank includes the following components in terms of water volume: acid leveling agent ES 25g / L, acid penetrating agent FL15g / L, and is dyed at room temperature.
[0047] And during water washing, described first-dyed e...
Embodiment 3
[0055] The preparation method of low shrinkage elastic belt comprises the steps:
[0056] S1. Weaving: Among them, the yarn adopts nylon / spandex covered yarn method, twisted to 600 twists first, and then untwisted to 500 twists, and the twist direction is Z twist.
[0057] S2. Retraction: Natural retraction is adopted, the temperature is 25°C, and the air humidity is 22%. Natural retraction 24h.
[0058] S3. Drying: drying the naturally retracted elastic belt, the drying temperature is 70° C., and the drying time is 1 hour.
[0059] S4. Dyeing: dyeing the dried elastic band, immersing the dried elastic band in a dyeing tank to obtain the primary dyed elastic band, and finally washing with water to obtain the washed elastic band.
[0060] Among them, the dyeing tank includes the following components in terms of water volume: acid leveling agent ES 22g / L, acid penetrating agent FL12g / L, and is dyed at room temperature.
[0061] And during water washing, described first-dyed ela...
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