Shrink-resistant sewing thread

Abstract

The utility model discloses a shrink-resistant sewing thread, belongs to the technical field of sewing threads, and solves the problems that cotton sewing threads are basically processed through technological means in the prior art, then shrinkage possibly brought by the cotton sewing threads in the follow-up process is reduced, and shrink-resistant adjustment on the cotton sewing threads cannot be carried out from the perspective of a physical structure. Comprising a sewing thread body, and the sewing thread body comprises a main core thread, a plurality of groups of split strips and an inner short fiber layer; the main core wire is made of a chemical fiber material; the plurality of groups of sectioning strips are fixedly connected to the outer ring of the main core wire, clamping areas are formed between the adjacent groups of sectioning strips, and the sectioning strips are also made of chemical fiber materials; and the inner short fiber layer is adhered to the outer sides of the main core wire and the plurality of groups of split strips. According to the sewing thread, the main core thread and the sectioning strip structure are combined with the cotton short fiber inner layer and the cotton short fiber outer layer, comfortable touch feeling is kept, and meanwhile the chemical fiber shrink-resistant characteristic is achieved. The reinforcing layer is wrapped outside to enhance the tensile strength, even if the cotton layer shrinks, the cotton layer can resist and improve the shrink resistance, and no extra process is needed.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing threads, in particular to an anti-shrinkage sewing thread. Background Art

[0002] Sewing thread is a kind of thread used for sewing, connecting or decorating textiles. It is an indispensable material in industries such as clothing manufacturing, home textiles, and footwear production. There are many types of sewing threads. According to the material, they can be divided into natural fiber threads such as cotton thread, linen thread, silk thread, and synthetic fiber threads such as polyester thread, nylon thread, polypropylene thread, etc. Natural fiber threads have good softness and skin-friendliness, while synthetic fiber threads are known for their high strength, wear resistance, and chemical stability.

[0003] Among them, the sewing thread formed by pure cotton thread shrinks mainly due to its material. The reason is the natural water absorption and structural characteristics of cotton fibers. Cotton fibers will expand after absorbing water. This physical change causes the volume of the fibers to increase and the length to shorten, thereby reducing the overall size of the sewing thread, which is the so-called shrinkage phenomenon. In addition, when the cotton thread is subjected to heat or mechanical action in a wet state, such as washing, stirring, ironing, etc., it may further aggravate the expansion and structural changes of the fibers and affect its original dimensional stability. The weaving process of cotton thread will also affect its shrinkage rate. Tightly woven cotton thread is relatively more stable, while loosely woven cotton thread is more likely to shrink. In order to reduce the shrinkage problem of cotton sewing thread during use, pre-shrinkage treatment is usually adopted, that is, the cotton thread is first moistened and dried before sewing to stabilize its size, or cotton thread products that have been pre-shrunk are selected to ensure the precise size and beautiful appearance of the sewing product.

[0004] However, the current means are basically to process the cotton sewing thread through technological means, thereby reducing the subsequent shrinkage that may be caused, and there is no adjustment to the cotton sewing thread to prevent shrinkage from the perspective of physical structure.

[0005] Therefore, a shrink-proof sewing thread is proposed to solve or alleviate the above problems. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and provides an anti-shrinkage sewing thread.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A shrink-proof sewing thread, comprising a sewing thread body, wherein the sewing thread body comprises a main core thread, a plurality of component flaps, and an inner staple fiber layer;

[0009] The main core line is made of chemical fiber;

[0010] Several groups of the petal strips are fixedly connected to the outer ring of the main core wire, and a clamping area is formed between adjacent groups of the petal strips. The petal strips are also made of chemical fiber material;

[0011] The inner staple fiber layer is bonded to the outer sides of the main core wire and a plurality of component petal strips, and the inner staple fiber layer is also filled into the clamping space.

[0012] Preferably, the main core wire and the plurality of group petal strips are all integrally formed structures.

[0013] Preferably, the main core line and the petal strips are both made of polyester.

[0014] Preferably, it also includes an outer staple fiber layer and an outer reinforcement layer;

[0015] The outer staple fiber layer is fixedly connected to the outer ring of the inner staple fiber layer;

[0016] The outer reinforcement layer is filled in the outer staple fiber layer, and the thickness of the outer reinforcement layer is smaller than that of the outer staple fiber layer.

[0017] Preferably, the outer staple fiber layer and the inner staple fiber layer are both formed by bonding cotton staple fibers, and the outer wrapping reinforcement layer is formed by spirally winding polyester filaments and bonding them to the outer circle of the inner staple fiber layer.

[0018] Preferably, the sewing thread body is heat-set after self-twisting.

[0019] The utility model has the following beneficial effects:

[0020] The utility model utilizes a main core wire and a petal strip structure, embedded with inner and outer staple fiber layers composed of cotton staple fibers, ensuring that the sewing thread still maintains the soft touch of cotton material in the final application. At the same time, the design cleverly integrates the anti-shrinkage properties of chemical fibers, giving the sewing thread additional durability. Furthermore, the introduction of the outer wrapped reinforcement layer achieves a significant increase in tensile strength over the entire length of the sewing thread. Even in the face of possible shrinkage of the inner and outer staple fiber layers, the presence of the reinforcement layer provides the necessary resistance. This structural innovation not only enhances the anti-shrinkage performance of the sewing thread, but also eliminates the additional processing steps required in traditional processes to reduce the impact of shrinkage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0023] 1. Sewing thread body; 2. Main core thread; 3. Petal strips; 4. Spacer cavity; 5. Inner staple fiber layer; 6. Outer reinforcement layer; 7. Outer staple fiber layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] A shrink-proof sewing thread, such as Figure 1 and 2 As shown, it includes a sewing thread body 1, and the sewing thread body 1 is heat-set after self-twisting.

[0026] The sewing thread body 1 comprises a main core thread 2, a plurality of component petals 3, an inner staple fiber layer 5, an outer staple fiber layer 7 and an outer reinforcement layer 6, and a spacing cavity 4 is formed between adjacent component petals 3;

[0027] A plurality of component petal strips 3 are fixedly connected to the outer ring of the main core line 2, and a clamping area is formed between adjacent component petal strips 3. The main core line 2 and the plurality of component petal strips 3 are all integrally formed structures. The main core line 2 is made of chemical fiber material, and the petal strips 3 are also made of chemical fiber material. Specifically, the main core line 2 and the petal strips 3 are both made of polyester material.

[0028] The inner staple fiber layer 5 is bonded to the outside of the main core line 2 and several component petals 3, and the inner staple fiber layer 5 is also filled into the clamping space. The outer staple fiber layer 7 is fixedly connected to the outer circle of the inner staple fiber layer 5, and the outer wrapped reinforcement layer 6 is filled in the outer staple fiber layer 7. The thickness of the outer wrapped reinforcement layer 6 is smaller than that of the outer staple fiber layer 7. The outer staple fiber layer 7 and the inner staple fiber layer 5 are both formed by bonding cotton staple fibers, and the outer wrapped reinforcement layer 6 is formed by spirally winding polyester filaments and bonding them to the outer circle of the inner staple fiber layer 5.

[0029] The utility model can carry the inner staple fiber layer 5 and the outer staple fiber layer 7 composed of cotton staple fibers through the main core wire 2 and the petal strips 3, so that the sewing thread can still maintain the comfortable touch of cotton material when it is finally set outside, but can take into account the anti-shrinkage performance of chemical fiber through the sewing thread. Secondly, the setting of the outer wrapped reinforcement layer 6 enhances the tensile strength in the length direction of the entire sewing thread body 1. Even if the inner staple fiber layer 5 and the outer staple fiber layer 7 shrink, they can also be resisted by the outer wrapped reinforcement layer 6. Through this structural reinforcement method, the anti-shrinkage performance of the sewing thread is enhanced, and there is no need to reduce the shrinkage effect of the sewing thread through technological processing.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shrink-proof sewing thread, characterized in that: The sewing thread body (1) comprises a main core thread (2), a plurality of component flaps (3), and an inner staple fiber layer (5); The main core wire (2) is made of chemical fiber; A plurality of groups of the petal strips (3) are fixedly connected to the outer ring of the main core line (2), and a clamping area is formed between adjacent groups of the petal strips (3), and the petal strips (3) are also made of chemical fiber material; The inner staple fiber layer (5) is bonded to the outer sides of the main core wire (2) and a plurality of component petals (3), and the inner staple fiber layer (5) is also filled into the clamping space.

2. The shrink-proof sewing thread according to claim 1, characterized in that: The main core line (2) and the plurality of component petal strips (3) are all integrally formed structures.

3. The shrink-proof sewing thread according to claim 2, characterized in that: The main core line (2) and the petal strips (3) are both made of polyester.

4. The shrink-proof sewing thread according to claim 1, characterized in that: It also includes an outer staple fiber layer (7) and an outer reinforcement layer (6); The outer staple fiber layer (7) is fixedly connected to the outer ring of the inner staple fiber layer (5); The outer reinforcement layer (6) is filled in the outer staple fiber layer (7), and the thickness of the outer reinforcement layer (6) is smaller than that of the outer staple fiber layer (7).

5. The shrink-proof sewing thread according to claim 4, characterized in that: The outer staple fiber layer (7) and the inner staple fiber layer (5) are both formed by bonding cotton staple fibers, and the outer wrapping reinforcement layer (6) is formed by spirally winding polyester filaments and bonding them to the outer circle of the inner staple fiber layer (5).

6. The shrink-proof sewing thread according to claim 1, characterized in that: The sewing thread body (1) is heat-set after self-twisting.

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