A stretch stain resistant fabric

Abstract

The utility model discloses an elastic stain resistant fabric, including elastic base cloth layer, elastic base cloth layer is weft knitting twill fabric, and the loop system of weft knitting twill fabric is 6 way one cycle, and the threading mode of loop system is 1, 3, 5 way and is inserted into PTT fiber filament, and 2, 4, 6 way and is inserted into elastic stain resistant yarn, and elastic stain resistant yarn includes core yarn, and the outside of core yarn is wrapped with stain resistant yarn, and core yarn is elastic yarn, and stain resistant yarn is water repellent dacron yarn. PTT fiber filament has high resilience, and surface polarity is low, reduces the intermolecular force with polarity stain, and stain is not easy to firmly adhere and is easier to remove, and elastic stain resistant yarn is T400 filament as core yarn, makes the fabric can satisfy the demand of the large amplitude stretch of the body and contracts, and the outside of elastic stain resistant yarn is water repellent dacron yarn, and water and liquid oil stain can not wet the fiber, reaches water repellent and antifouling effect, and compared with the prior art elastic fabric, has better stain resistant performance.

Description

Technical Field

[0001] This utility model relates to a fabric, specifically an elastic and stain-resistant fabric. Background Technology

[0002] With the diversification of life scenarios, different fields have put forward more detailed and stringent requirements for the functionality of fabrics. In the clothing industry, sportswear needs fabrics with excellent elasticity to meet the large-scale stretching and contraction of the limbs during exercise, while also resisting stains such as sweat and oil generated during exercise; outdoor clothing not only needs to meet the stretching requirements in complex environments, but also needs to have stain-resistant properties such as water repellency and oil resistance to ensure the wearer's comfort and dryness.

[0003] Currently, the elasticity of elastic fabrics is mainly achieved through the blending of elastic fibers, with spandex as a representative. Spandex is blended with fibers such as cotton, polyester, and nylon in a certain proportion. Utilizing spandex's high elongation (500%-800%) and recovery rate (over 90%), the fabric gains excellent elasticity. These fabrics are widely used in underwear, casual pants, and sportswear. However, existing elastic fabrics suffer from poor stain resistance. Their fiber structure is relatively loose, and the surface polarity of elastic fibers such as spandex is strong, making them prone to absorbing stains, which are difficult to clean once attached. Therefore, this application provides an elastic stain-resistant fabric. Utility Model Content

[0004] The purpose of this invention is to provide an elastic, stain-resistant fabric that is designed to have better stain resistance compared to existing elastic fabrics.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: an elastic stain-resistant fabric, comprising: an elastic base fabric layer, wherein the elastic base fabric layer is a weft-knitted twill fabric, and the loop-forming system of the weft-knitted twill fabric is a 6-way loop; the yarn threading method of the loop-forming system is that PTT fiber filaments are threaded into the 1st, 3rd, and 5th loops, and elastic stain-resistant yarns are threaded into the 2nd, 4th, and 6th loops; the elastic stain-resistant yarn includes a core yarn, and the core yarn is wrapped with a stain-resistant yarn, wherein the core yarn is an elastic yarn, and the covering fiber is a stain-resistant fiber.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the PTT fiber filament is an antibacterial PTT fiber filament.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the elastic yarn is T400 filament.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the stain-resistant yarn is water-repellent polyester yarn.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the two sides of the elastic base fabric layer are coated with a three-proof and easy-to-clean finishing agent.

[0010] The beneficial effects of this utility model are as follows: Based on the elastic stain-resistant fabric of this utility model, the PTT fiber filament has spring-like deformation ability and high resilience, and the PTT fiber surface has low polarity, reducing the intermolecular forces with polar stains, making stains less likely to adhere firmly and easier to remove; the elastic stain-resistant yarn uses T400 filament as the core yarn, allowing the fabric to meet the needs of large-scale stretching and contraction of limbs, making it suitable for sports, outdoor and other scenarios; the outer layer of the elastic stain-resistant yarn is water-repellent polyester yarn, so water and liquid oil stains cannot wet the fibers, achieving a water-repellent and stain-resistant effect; compared with existing elastic fabrics, it has better stain resistance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the elastic stain-resistant fabric involved in this utility model; In the picture: Route 1-1, Route 2-2, Route 3-3, Route 4-4, Route 5-5, Route 6-6. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0013] Example 1 Combination Figure 1 This embodiment provides a detailed description of an elastic stain-resistant fabric, comprising: an elastic base fabric layer, wherein the elastic base fabric layer is a weft-knitted twill fabric, and the loop-forming system of the weft-knitted twill fabric is a 6-way loop; the yarn threading method of the loop-forming system is that PTT fiber filaments are threaded into the 1st, 3rd, and 5th loops, and elastic stain-resistant yarns are threaded into the 2nd, 4th, and 6th loops; the elastic stain-resistant yarn includes a core yarn, and the core yarn is wrapped with a stain-resistant yarn, wherein the core yarn is an elastic yarn, and the covering fiber is a stain-resistant fiber.

[0014] Specifically, during knitting, all three needles of lines 1, 3, and 5 come out to form a loop, with the yarn exposed on the front side of the garment. For lines 2, 4, and 6, the yarn is formed by one needle coming out to form a loop and two needles not being knitted, creating a floating yarn. That is: for line 2, the first needle comes out to form a loop, and the second and third needles are not knitted to form a floating yarn; for line 4, the second needle comes out to form a loop, and the first and third needles are not knitted to form a floating yarn; for line 6, the third needle comes out to form a loop, and the first and second needles are not knitted to form a floating yarn. The floating yarn is used to form a twill pattern exposed on the reverse side of the garment, which is used for the front side of the garment.

[0015] PTT fiber is produced by melt polycondensation of 1,3-propylene glycol and dimethyl terephthalate through transesterification, or by melt polycondensation of 1,3-propylene glycol and terephthalic acid. PTT fiber has a smooth, rounded surface and is a semi-crystalline thermoplastic polyester. Its chemical structure features a low-energy trans-para-para-trans conformation, resulting in a distinct "Z"-shaped conformation. The presence of three methylene units in the molecular chain creates a unique carbon effect between the chains. This molecular structure gives PTT fiber a coil-spring-like deformability and superior resilience compared to PET and PBT. The presence of flexible methylene segments in the PTT fiber molecular chain results in lower surface polarity and surface energy compared to polyester PET. This characteristic reduces intermolecular forces between the fiber and polar stains, such as water-based stains and polar components in greases. Stains are less likely to adhere firmly to the fiber surface through chemical bonds or physical adsorption, making them easier to remove.

[0016] Furthermore, the elastic yarn is T400 filament. T400 filament is composed of PET and PTT compounded side by side. The PET and PTT are processed and compounded in a composite spinneret, and then stretched and heat-set. T400 filament has a large elastic elongation and good elastic recovery, and its elasticity is better than that of PTT and PET fibers. It also has high tensile strength, a soft hand feel, good moisture absorption and perspiration wicking, and good wrinkle resistance, which can provide good elasticity for the yarn body.

[0017] Furthermore, the stain-resistant yarn is a water-repellent polyester yarn. Specifically, the water-repellent polyester yarn is prepared by adding a C6 water-repellent finishing agent to the sizing tank of a single yarn sizing machine, resulting in a polyester yarn with excellent water repellency. Water-repellent finishing aims to modify the properties of the fiber surface, making it hydrophobic. This creates a hydrophobic structure on the fabric surface, similar to that of a lotus leaf, which enhances the surface tension of the fabric and prevents liquid water from penetrating the pores in the fabric structure. Therefore, water and liquid oil cannot wet the fibers, achieving the purpose of water repellency and stain prevention.

[0018] Example 2 Based on Example 1, the PTT fiber filament is an antibacterial PTT fiber filament. The antibacterial PTT fiber filament is prepared by a masterbatch addition method, which involves blending silver-based antibacterial masterbatch and PTT chips through melt spinning. It possesses the excellent resilience of PTT fibers, and the silver-based antibacterial agent has a good antibacterial effect against a broad spectrum of bacteria. When bacteria and viruses come into contact with the fiber surface, the active ingredient Ag+ in the antibacterial agent can penetrate the negatively charged bacterial cell wall and rapidly bind to sulfhydryl groups and amino groups on the enzyme proteins within the bacteria, disrupting the normal structure of proteins and nucleic acids, causing microbial death or loss of reproductive ability, thereby achieving antibacterial and bactericidal effects. Therefore, the antibacterial PTT fiber filament also has a good antibacterial effect.

[0019] Example 3 Based on the above embodiments, the elastic base fabric layer is coated with a three-proof and easy-to-clean finishing agent on both sides. Specifically, the three-proof and easy-to-clean finishing agent is Teflon, which has hydrophobic and oleophobic properties, blocks the capillary action on the fiber surface, and prevents water and oil dripping onto the surface from penetrating into the fabric, thus giving the fabric oil-proof, water-proof and easy-to-clean properties.

[0020] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An elastic, stain-resistant fabric, characterized in that, include: The elastic base fabric layer is a weft-knitted twill fabric, and the loop-forming system of the weft-knitted twill fabric is a 6-way loop; the yarn threading method of the loop-forming system is to insert PTT fiber filaments through 1way (1), 3way (3), and 5way (5), and to insert elastic stain-resistant yarns through 2way (2), 4way (4), and 6way (6); the elastic stain-resistant yarn includes a core yarn, and the outside of the core yarn is wrapped with stain-resistant yarn, the core yarn is an elastic yarn, and the stain-resistant yarn is a water-repellent polyester yarn.

2. The elastic stain-resistant fabric according to claim 1, characterized in that, The PTT fiber filament is an antibacterial PTT fiber filament.

3. The elastic stain-resistant fabric according to claim 1, characterized in that, The elastic yarn is T400 filament.

4. The elastic stain-resistant fabric according to claim 1, characterized in that, The elastic base fabric layer has a three-proof and easy-to-clean finishing agent attached to both sides.

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