CN203866463U - Air-jet texturing yarn core-spun sewing thread - Google Patents

Abstract

The utility model discloses an air-jet texturing yarn core-spun sewing thread. The core-spun sewing thread is composed of a core thread and a synthetic fabric wrapped on the surface of the core thread. The synthetic fabric is spirally wrapped on the surface of the core thread. The core thread is polyester air-jet texturing yarn. The synthetic fabric is a mixture of cotton fiber and low-melting-point polyester staple fiber. The melting point of the low-melting-point polyester staple fiber is lower than or equal to 130 DEG C. Compared with a polyester air-jet texturing yarn sewing thread, the air-jet texturing yarn core-spun sewing thread has the advantages that since the cotton fiber wraps the outer surface of the polyester air-jet texturing yarn, the heat resistance and the antistatic property of the sewing thread can be improved, and the sewing thread has the appearance of natural fiber; the low-melting-point polyester staple fiber melts in the high-speed sewing process, so that the cotton fiber and the polyester air-jet texturing yarn are wrapped more closely, silk loops of the polyester air-jet texturing yarn are not prone to slipping, the strength of the core-spun sewing thread is improved, the elongation is lowered, and the air-jet texturing yarn core-spun sewing thread is suitable for high-speed sewing and processing.

Description

An air textured silk corespun sewing thread

technical field

The utility model relates to an air-deformed silk core-spun sewing thread, which belongs to the textile field.

Background technique

Sewing threads for clothing are usually divided into three categories according to raw materials: natural fiber sewing threads, chemical fiber sewing threads and mixed sewing threads. Air textured yarn uses compressed air to make the filaments of chemical fibers undergo air jet deformation, change the structure of the tow, make the surface of the filaments have special loop characteristics, and directly make yarns with a bulky structure. As a special variety of air-textured yarn, air-textured yarn sewing thread omits the production process of cutting chemical fiber filaments into short fibers of a certain length and then spinning them, so the air-textured yarn produced The cost of sewing thread is greatly reduced. Most of the currently used air textured yarn sewing threads use polyester filaments as raw materials. Although the air textured yarn sewing thread has certain mechanical and physical properties, it is not suitable for high-speed sewing. The main reason is that it is easy to slip between the loops on the surface and the elongation of the sewing thread is large. In order to overcome this shortcoming, people use the method of twisting to improve it. The mechanical and physical properties of the air textured yarn are improved by twisting to meet the requirements of high-speed sewing. However, this method needs to add a twisting process, and the cost increases. With the further improvement of sewing speed, the strength and wear resistance of air textured yarn sewing thread need to be further improved.

Contents of the invention

In view of the above problems, the purpose of this utility model is to provide an air textured yarn corespun sewing thread.

In order to achieve the above purpose, the technical solution adopted by the utility model is: an air-textured yarn core-spun sewing thread. The air-textured yarn core-spun sewing thread is composed of a core thread and a mixed fiber coated on the surface of the core thread. The mixed fiber is in a spiral shape. Shape coated on the surface of the core wire.

The core thread is polyester air textured yarn.

The mixed fiber is a mixture of cotton fiber and polyester staple fiber with low melting point.

The melting point of the low melting point polyester staple fiber is less than or equal to 130°C.

Due to the adoption of the above technical scheme, the air-textured silk core-spun sewing thread of the utility model is compatible with the air-textured thread

Compared with shaped yarn sewing thread, because the cotton fiber is covered with air textured yarn on the surface, it can not only improve the heat resistance and antistatic property of the sewing thread, but also make the sewing thread have the appearance of natural fiber, which can meet the requirements of different styles of clothing . Low-melting point polyester staple fibers are melted during high-speed sewing, which makes the coating between cotton fiber and polyester air-textured yarn more compact, and the loops of polyester air-textured yarn are less likely to slip, and the sewing thread The strength is improved and the elongation is reduced, which is suitable for high-speed sewing processing.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings.

see picture 1.

An air textured silk cored sewing thread is composed of a core thread 1 and a mixed fiber 2 coated on the surface of the core thread 1, and the mixed fiber 2 is wrapped on the surface of the core thread 1 in a spiral shape. The core thread 1 is polyester air-textured yarn, and the mixed fiber 2 is a mixture of cotton fiber and low-melting point polyester staple fiber, and the melting point of the low-melting point polyester staple fiber is less than or equal to 130°C.

When the utility model is manufactured, at first the cotton fibers with a length of 30.4mm and a fiber linear density of 1.65dtex, and polyester staple fibers with a length of 38mm, a fiber linear density of 1.33dtex and a melting point of 130°C are respectively opened and cleaned, combed The cotton process prepares cotton sliver and low-melting point polyester staple fiber raw sliver, and then mixes these two kinds of raw sliver in the drawing process to prepare a mixture of cotton sliver and low-melting point polyester staple fiber with a certain weight blending ratio. For the sliver, in order to make the two fiber components evenly mixed in the sliver, three draws are used for processing. The cooked slivers obtained in the drawing process are then prepared through the roving process to obtain rovings, and the rovings are fed into the drafting device of the spinning frame for normal drafting. On the top of the drafting device of the spinning frame, a godet wheel device is installed, and the air-textured yarn processed by the ordinary polyester pre-oriented yarn POY 125dtex/36f is directly fed into the front of the drafting device. Roller, after the polyester air textured yarn is output from the front roller, it is twisted together with the mixed fiber of cotton fiber and low melting point polyester staple fiber output by the drafting device to form a yarn. The polyester air textured yarn is located in the center of the yarn to form a core thread, and the cotton fiber The mixed fiber with low-melting point polyester staple fiber is spirally coated on the surface of the core thread, and the sewing thread of the utility model can be produced.

Claims (2)

1. An air textured yarn core-spun sewing thread, characterized in that: the core-spun sewing thread is composed of a core thread (1) and a mixed fiber (2) coated on the surface of the core thread (1), and the mixed fiber (2) ) is spirally coated on the surface of the core wire (1). 2. An air textured yarn corespun sewing thread according to claim 1, characterized in that: said core thread (1) is polyester air textured yarn.