Preparation method of composite filament

Abstract

The invention relates to a preparation method of a composite filament, a low stretch yarn A and a low stretch yarn B are combined in a grid-connected mode to prepare the composite filament, one of the low stretch yarn A and the low stretch yarn B is the low stretch yarn passing through a pre-network, and the other one is the low stretch yarn not passing through the pre-network; the low stretch yarn A and the low stretch yarn B are different in color and have a color difference (E) of more than 3.0, or are the same in color and have a dye-uptake difference value of 80-90%; in the manufacturing process, the color depth and the pattern length of the composite filament are adjusted by keeping the filament tension within a certain range and adjusting the network pressure during grid connection; the value range of the filament tension is 1.0-1.6 cN, and the value range of the network pressure during grid connection is 0.2-2.0 MPa. According to the method, the novel flexible and convenient composite yarn capable of being evolved into various colors with different depths and patterns with different lengths is provided, and the prepared composite yarn fabric has a unique mixed three-dimensional style.

Description

technical field

[0001] The invention belongs to the technical field of polyester fibers and relates to a preparation method of composite yarns. Background technique

[0002] With the development of social economy and the improvement of people's living standards, people's consumption concepts are constantly updated, and people pay more attention to the quality of life, resulting in the diversification of aesthetic differences. Because of this, the hemp-like chemical fiber fabric has gradually entered the public's field of vision and has become a new favorite in the market. The traditional weaving method of this fabric is to use black and white yarns for matching weaving. The process is cumbersome and the degree of simulation is not high. In order to solve the technical defects existing in the traditional process, there has been a process of producing black and white hemp gray style spinning by matching different proportions of black and white polyester yarns in the existing t...

Examples

Embodiment 1

[0037] A kind of preparation method of composite yarn, such as figure 1 As shown, the specific steps are as follows:

[0038] (1) Preparation of low elastic yarn A and low elastic yarn B;

[0039] The preparation process of low elastic yarn A is as follows: After the raw material is pre-networked, it is deformed by the first roller and then passed through the deformation heating box. Low elastic yarn A through pre-network; wherein, the pre-network pressure is 1.6MPa; the raw material is polyester POY yarn, the color is black, the fineness of the raw material is 185dtex, and the number of single filaments is 192f;

[0040] The preparation process of the low elastic yarn B is as follows: the raw material is directly passed through the first roller and then deformed through the deformation heat box, and after leaving the deformation box, it is cooled by the cooling plate for false twisting, and then processed by the second roller to obtain a non-pre-networked yarn. Low elastic ...

Embodiment 2

[0061] A kind of preparation method of composite silk, concrete steps are as follows:

[0062] (1) Preparation of low elastic yarn A and low elastic yarn B;

[0063] The preparation process of low elastic yarn A is as follows: After the raw material is pre-networked, it is deformed by the first roller and then passed through the deformation heating box. Low elastic yarn A through pre-network; wherein, the pre-network pressure is 1.2MPa; the raw material is polyester POY yarn, the color is black, the fineness of the raw material is 88dtex, and the number of single filaments is 72f;

[0064] The preparation process of the low elastic yarn B is as follows: the raw material is directly passed through the first roller and then deformed through the deformation heat box, and after leaving the deformation box, it is cooled by the cooling plate for false twisting, and then processed by the second roller to obtain a non-pre-networked yarn. Low stretch yarn B; the raw material is polyes...

Embodiment 3

[0069] A kind of preparation method of composite silk, concrete steps are as follows:

[0070] (1) Preparation of low elastic yarn A and low elastic yarn B;

[0071] The preparation process of low elastic yarn A is as follows: After the raw material is pre-networked, it is deformed by the first roller and then passed through the deformation heating box. Low elastic yarn A through pre-network; wherein, the pre-network pressure is 1MPa; the raw material is polyester POY yarn, the color is black, the fineness of the raw material is 30dtex, and the number of single filaments is 12f;

[0072] The preparation process of the low elastic yarn B is as follows: the raw material is directly passed through the first roller and then deformed through the deformation heat box, and after leaving the deformation box, it is cooled by the cooling plate for false twisting, and then processed by the second roller to obtain a non-pre-networked yarn. Low elastic yarn B; the raw material is polyeste...

technical field

[0001] The invention belongs to the technical field of polyester fibers and relates to a preparation method of composite yarns. Background technique

[0002] With the development of social economy and the improvement of people's living standards, people's consumption concepts are constantly updated, and people pay more attention to the quality of life, resulting in the diversification of aesthetic differences. Because of this, the hemp-like chemical fiber fabric has gradually entered the public's field of vision and has become a new favorite in the market. The traditional weaving method of this fabric is to use black and white yarns for matching weaving. The process is cumbersome and the degree of simulation is not high. In order to solve the technical defects existing in the traditional process, there has been a process of producing black and white hemp gray style spinning by matching different proportions of black and white polyester yarns in the existing t...

Examples

Embodiment 1

[0037] A kind of preparation method of composite yarn, such as figure 1 As shown, the specific steps are as follows:

[0038] (1) Preparation of low elastic yarn A and low elastic yarn B;

[0039] The preparation process of low elastic yarn A is as follows: After the raw material is pre-networked, it is deformed by the first roller and then passed through the deformation heating box. Low elastic yarn A through pre-network; wherein, the pre-network pressure is 1.6MPa; the raw material is polyester POY yarn, the color is black, the fineness of the raw material is 185dtex, and the number of single filaments is 192f;

[0040] The preparation process of the low elastic yarn B is as follows: the raw material is directly passed through the first roller and then deformed through the deformation heat box, and after leaving the deformation box, it is cooled by the cooling plate for false twisting, and then processed by the second roller to obtain a non-pre-networked yarn. Low elastic ...

Embodiment 2

[0061] A kind of preparation method of composite silk, concrete steps are as follows:

[0062] (1) Preparation of low elastic yarn A and low elastic yarn B;

[0063] The preparation process of low elastic yarn A is as follows: After the raw material is pre-networked, it is deformed by the first roller and then passed through the deformation heating box. Low elastic yarn A through pre-network; wherein, the pre-network pressure is 1.2MPa; the raw material is polyester POY yarn, the color is black, the fineness of the raw material is 88dtex, and the number of single filaments is 72f;

[0064] The preparation process of the low elastic yarn B is as follows: the raw material is directly passed through the first roller and then deformed through the deformation heat box, and after leaving the deformation box, it is cooled by the cooling plate for false twisting, and then processed by the second roller to obtain a non-pre-networked yarn. Low stretch yarn B; the raw material is polyes...

Embodiment 3

[0069] A kind of preparation method of composite silk, concrete steps are as follows:

[0070] (1) Preparation of low elastic yarn A and low elastic yarn B;

[0071] The preparation process of low elastic yarn A is as follows: After the raw material is pre-networked, it is deformed by the first roller and then passed through the deformation heating box. Low elastic yarn A through pre-network; wherein, the pre-network pressure is 1MPa; the raw material is polyester POY yarn, the color is black, the fineness of the raw material is 30dtex, and the number of single filaments is 12f;

[0072] The preparation process of the low elastic yarn B is as follows: the raw material is directly passed through the first roller and then deformed through the deformation heat box, and after leaving the deformation box, it is cooled by the cooling plate for false twisting, and then processed by the second roller to obtain a non-pre-networked yarn. Low elastic yarn B; the raw material is polyeste...

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