Manufacturing process for low-temperature shaped elastic coating yarn

Abstract

The invention discloses a low temperature setting elastic coating wire manufacturing process, in particular relates to a coating manufacturing process which implements the low temperature setting on polyolefin elastic filament fiber. The technological process of the invention is mainly divided into four parts of elastic wire feeding, tensile covering, relaxation coiling and the last lower temperature setting of textile. In every process step, specific process conditions are selected. Especially when the low temperature setting condition is selected, such as 60 or 70 DEG C, the setting of the elastic long fiber textile can be realized. At the same time, proper traction force, traction multiple, coating twist, winding speed, etc. are matched in the coating wire manufacturing process. The invention has the advantage that wearing fabrics with high quality can be produced under the effective energy saving condition. Fabric strength, heat setting property, etc. are well guaranteed. And the operation is more convenient. The invention can be widely applied to the preparation process of various high-grade fabrics.

Description

technical field

[0001] The invention belongs to a textile fiber processing technology, in particular to a coating manufacturing process for low-temperature setting of polyolefin-based elastic filament fibers. Background technique

[0002] The elastic fiber fabrics that are widely used today generally use spandex fibers as elastic raw materials. It is compounded with other fibers. Although it has been implemented in the industry for many years, there are two main disadvantages in the development of textile fabrics using spandex elastic yarns. One is that spandex elasticity must be finished and shaped at high temperatures (above 160°C), which requires harsh equipment and environmental requirements. It consumes a lot, and at the same time, due to the high temperature setting, other fibers used in the fabric, such as silk, wool, cashmere, and high-count cotton, will become brittle in performance, the color of the fabric will change, and the hand will harden. The post-finishing...

Examples

Embodiment 1

[0023] Example 1: DOW XLA elastic fiber is used as polyolefin-based elastic fiber as the core material, which is produced by Dow Chemical Company in the United States, and bamboo fiber / silk 40 / 60, 120N / z is used as the covering material. The cake-shaped DOW XLA elastic yarn bobbin 2 is driven by the feeding roller 1 to actively retreat. After passing through the pre-drawing roller 3, the draft ratio is 2.0 and the draft tension is 2CN, and it is fed into the hollow spindle 5. When the DOW XLA elastic yarn is drawn out from the hollow spindle rod, the hollow spindle rotates at high speed under the friction of the dragon belt 4, so that the outer covering silk (yarn) 6 on the double-sided bobbin 7 on the spindle rotates at a high speed and retreats. , under the action of the balloon guide wire hook 8, the outer covering wire forms a covering balloon. As soon as the covering balloon turns around the axis of the spindle, a twist is added to the outer covering wire, and the coverin...

Embodiment 2

[0024] Embodiment 2: DOW XLA elastic fiber is used as polyolefin-based elastic fiber as the material, which is produced by Dow Chemical Company in the United States. Different coating materials are selected. Under different processing conditions, the setting temperature is 60 ° C. The drawing tension is 3CN, the winding speed is 8.5m / min, and the winding tension is 15CN, and the steps carried out in Example 1 are carried out to obtain the following table:

[0025]

[0026] Polyester (DTY) / 75D+XLA / 40D

Embodiment 3

[0027] Embodiment 3: DOW XLA elastic fiber is used as polyolefin-based elastic fiber as the material, which is produced by Dow Chemical Company in the United States. Different coating materials are selected. Under different processing conditions, the setting temperature is 80 ° C. The drawing tension is 5CN, the winding speed is 9.5m / min, and the winding tension is 20CN, and the steps carried out in Example 1 are carried out to obtain the following table:

[0028]

[0029] Polyester / cotton 50 / 50, 40s+XLA / 40D

technical field

[0001] The invention belongs to a textile fiber processing technology, in particular to a coating manufacturing process for low-temperature setting of polyolefin-based elastic filament fibers. Background technique

[0002] The elastic fiber fabrics that are widely used today generally use spandex fibers as elastic raw materials. It is compounded with other fibers. Although it has been implemented in the industry for many years, there are two main disadvantages in the development of textile fabrics using spandex elastic yarns. One is that spandex elasticity must be finished and shaped at high temperatures (above 160°C), which requires harsh equipment and environmental requirements. It consumes a lot, and at the same time, due to the high temperature setting, other fibers used in the fabric, such as silk, wool, cashmere, and high-count cotton, will become brittle in performance, the color of the fabric will change, and the hand will harden. The post-finishing...

Examples

Embodiment 1

[0023] Example 1: DOW XLA elastic fiber is used as polyolefin-based elastic fiber as the core material, which is produced by Dow Chemical Company in the United States, and bamboo fiber / silk 40 / 60, 120N / z is used as the covering material. The cake-shaped DOW XLA elastic yarn bobbin 2 is driven by the feeding roller 1 to actively retreat. After passing through the pre-drawing roller 3, the draft ratio is 2.0 and the draft tension is 2CN, and it is fed into the hollow spindle 5. When the DOW XLA elastic yarn is drawn out from the hollow spindle rod, the hollow spindle rotates at high speed under the friction of the dragon belt 4, so that the outer covering silk (yarn) 6 on the double-sided bobbin 7 on the spindle rotates at a high speed and retreats. , under the action of the balloon guide wire hook 8, the outer covering wire forms a covering balloon. As soon as the covering balloon turns around the axis of the spindle, a twist is added to the outer covering wire, and the coverin...

Embodiment 2

[0024] Embodiment 2: DOW XLA elastic fiber is used as polyolefin-based elastic fiber as the material, which is produced by Dow Chemical Company in the United States. Different coating materials are selected. Under different processing conditions, the setting temperature is 60 ° C. The drawing tension is 3CN, the winding speed is 8.5m / min, and the winding tension is 15CN, and the steps carried out in Example 1 are carried out to obtain the following table:

[0025]

[0026] Polyester (DTY) / 75D+XLA / 40D

Embodiment 3

[0027] Embodiment 3: DOW XLA elastic fiber is used as polyolefin-based elastic fiber as the material, which is produced by Dow Chemical Company in the United States. Different coating materials are selected. Under different processing conditions, the setting temperature is 80 ° C. The drawing tension is 5CN, the winding speed is 9.5m / min, and the winding tension is 20CN, and the steps carried out in Example 1 are carried out to obtain the following table:

[0028]

[0029] Polyester / cotton 50 / 50, 40s+XLA / 40D

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