PET 100% two-component elastic fabric

Abstract

The invention provides a two-component elastic fabric prepared from 100% of PET, and belongs to the technical field of textile processing. According to the invention, the elastic fabric is prepared by spinning, weaving, dyeing and post-finishing 100% PET polyester, and the fluffy coefficient of the fabric is 1.8-2.5. Due to the fact that the fabric is completely made of the PET material, the fabric has the advantages of being environmentally friendly and sustainable. Meanwhile, the fluffy coefficient of the fabric is 1.8-2.5, and the elastic elongation is greater than 10%, so that the fluffy feeling and softness of the fabric are better, and the fluffy feeling and the hand feeling smoothness of the elastic fabric are improved. Therefore, the problems that in the prior art, a fabric lacks enough softness and fluffy feeling and is poor in hand feeling smoothness can be solved, and meanwhile the problem that PBT / PET and PTT / PET elastic composite yarn cannot be recycled is solved.

Description

Technical Field

[0001] The present application relates to the technical field of textile processing, and in particular to a PET two-component elastic fabric. Background Art

[0002] Elastic fabrics refer to fabrics with good elasticity. They are usually made of single-component yarns containing spandex, or bi-component yarns containing polybutylene terephthalate (PBT) or polyethylene terephthalate (PET), or bi-component yarns containing polytrimethylene terephthalate (PTT) or PET, as well as PET / PET composite yarns.

[0003] Single-component yarns containing spandex are widely used due to their excellent elasticity and stretching properties, but the fabrics made from them are often slightly stiff in feel, lacking sufficient softness and fluffiness, which compromises the wearing comfort and has color fastness issues. On the other hand, textiles made from two-component yarns such as PBT / PET and PTT / PET, although they have excellent elasticity and feel, cannot meet the requirements of recyclability and environmental protection. Although the existing PET / PET composite yarns are more diverse and adaptable in structural design, and can enhance the durability and elasticity of the fabrics, the delicate feel and fluffiness of the fabrics still need to be further improved. .

[0004] Therefore, it is necessary to propose a new elastic fabric to overcome the defects of the above-mentioned elastic fabric. Summary of the invention

[0005] The present application provides a PET two-component elastic fabric, which is used to improve the fluffiness and fineness of the fabric, and at the same time, can realize the recycling and reuse of the fabric.

[0006] In a first aspect, the present application provides a recyclable PET two-component elastic fabric, the fabric is made from 100% polyethylene terephthalate PET polyester through spinning, weaving, dyeing and finishing, and the bulk coefficient of the fabric is between 1.8 and 2.5.

[0007] In a possible design of the first aspect, the yarn constituting the fabric is of a stretched yarn type.

[0008] In a possible design of the first aspect, the cross-sectional shape of the yarn monofilament is peanut-shaped, eyeglass-shaped, or symmetrical semicircular.

[0009] In a possible design of the first aspect, the yarn monofilaments are made by composite spinning of high-viscosity PET polyester and low-viscosity PET polyester.

[0010] In a possible design of the first aspect, the high-viscosity PET polyester is a high-shrinkage polyester, wherein the high-shrinkage polyester accounts for 10% to 50% of the yarn.

[0011] In a possible design of the first aspect, the low-viscosity PET polyester is a high-shrinkage polyester, wherein the high-shrinkage polyester accounts for 10% to 50% of the yarn.

[0012] In a possible design of the first aspect, all of the PET is obtained by recycling bottle flakes.

[0013] In a possible design of the first aspect, the fabric has a structure of plain weave, plaid, or a variation thereof.

[0014] In a possible design of the first aspect, the elongation of the fabric is greater than 10%.

[0015] In a second aspect, an embodiment of the present application provides a method for preparing a PET 100% two-component elastic fabric, comprising: subjecting 100% polyethylene terephthalate PET polyester to spinning, weaving, dyeing and post-processing in sequence to obtain the fabric.

[0016] The PET 100% two-component elastic fabric provided in the present application is made by spinning, weaving, dyeing and finishing 100% PET polyester, and the bulk coefficient of the fabric is between 1.8 and 2.5. Since the fabric is made entirely of PET material, it is environmentally friendly and sustainable. At the same time, the bulk coefficient of the fabric is between 1.8 and 2.5, and the elastic elongation is greater than 10%, so that the fabric has good fluffiness and softness, and improves the fluffiness and fineness of the elastic fabric. Therefore, it can overcome the problem that the fabric in the prior art lacks sufficient softness and fluffiness, and the fabric has poor fineness of feel, and at the same time solves the problem that PBT / PET and PTT / PET elastic composite yarns cannot be recycled and reused. DETAILED DESCRIPTION

[0017] The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0018] Elastic fabrics refer to fabrics with good stretchability. They are usually made of single-component yarns containing spandex, or two-component yarns containing PBT or PET, or two-component yarns containing PTT or PET, and PET / PET composite yarns.

[0019] Generally, single-component yarns containing spandex are widely used due to their excellent elasticity and stretching properties, but the fabrics made from them are often slightly stiff in feel, lacking sufficient softness and fluffiness, which compromises the wearing comfort. On the other hand, although bi-component yarns such as PBT / PET, PTT / PET, and PET / PET composite yarns are more diverse and adaptable in structural design, and can enhance the durability and elasticity of fabrics, the delicate feel and fluffiness of their fabrics still need to be further improved, and these composite yarns are often difficult to recycle and reuse, which is not conducive to environmental protection and sustainable development.

[0020] Based on this, the inventor of the present application proposed a new two-component elastic fabric made of 100% PET to improve the fluffiness and fineness of the fabric and to achieve the recyclability of the fabric.

[0021] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below.

[0022] The recyclable polyethylene terephthalate (PET) two-component elastic fabric provided in the embodiment of the present application can be made by spinning, weaving, dyeing and finishing 100% PET polyester. The bulk coefficient of the fabric is between 1.8 and 2.5, and the elastic elongation is greater than 10%. The bulk coefficient is equal to the thickness (mm) divided by the gram weight (g / mm 2 ).

[0023] Among them, 100% PET is obtained entirely from recycled bottle flakes. Specifically, 100% PET can be a recycled material obtained by recycling and reprocessing discarded PET plastic bottles or other PET products. Today, with the increasing awareness of environmental protection, recycled PET is widely used in various applications such as textiles, packaging, bottles, etc., to reduce dependence on original petroleum resources and reduce the impact of plastic waste on the environment. Therefore, the use of 100% recycled PET to make a two-component elastic fabric makes the fabric environmentally friendly and sustainable, solving the problem that composite yarns in the prior art cannot be recycled and reused.

[0024] This embodiment can improve the comfort and warmth retention of the fabric as well as its aesthetics and breathability by making the fabric's bulkiness factor between 1.8 and 2.5 and its elastic elongation greater than 10%.

[0025] In a feasible implementation scheme, the yarns constituting the fabric are drawn textured yarn (DTY). DTY polyester refers to processed polyester yarn, which is obtained by stretching and deforming polyester filaments of a predetermined length and then processing them. This process can make the drawn textured polyester softer and more elastic, so that the fabric it is in has a comfortable and good wearing feeling while also having a certain degree of wear resistance and durability.

[0026] In this embodiment, the cross-sectional shape of the yarn monofilament is peanut-shaped, eyeglass-shaped or symmetrical semicircular. Those skilled in the art will know that the cross-sectional shape of the yarn monofilament has an important influence on the performance and appearance of the textile. Setting the cross-sectional shape of the yarn monofilament to peanut-shaped, eye-shaped or symmetrical semicircular can increase the surface area of ​​the polyester, improve the feel of the textile, enhance the air permeability of the fabric and improve the visual effect of the fabric.

[0027] For example, a peanut-shaped or eye-shaped yarn section can provide more surface details, which is conducive to dyeing and printing, making the colors more vivid and lasting, and at the same time, it can also increase the three-dimensional sense and texture of the fabric, making it look richer and more interesting. Symmetrical semicircular yarn sections can create tiny air channels in the fabric, which is conducive to air circulation and moisture discharge.

[0028] In one possible implementation, the yarn is made of high-viscosity PET polyester and low-viscosity PET polyester through composite spinning. Among them, high-viscosity PET polyester refers to a polyester raw material with a longer molecular chain and higher viscosity. High-viscosity PET polyester can usually provide better strength and wear resistance, and is suitable for textiles requiring higher physical properties. Low-viscosity PET polyester refers to a polyester raw material with a shorter molecular chain and lower viscosity. Low-viscosity PET polyester is more suitable for some polyester needs that require softer, more suitable for dyeing or easier processing.

[0029] In this embodiment, during the spinning process, by combining high-viscosity PET polyester and low-viscosity PET polyester to control the final performance and applicability of the yarn, specific polyester properties and spinning effects can be obtained to meet the needs of different textile manufacturing.

[0030] Optionally, the high-viscosity PET polyester is a high-shrinkage polyester, and the high-shrinkage polyester accounts for 10% to 50% of the yarn. Alternatively, the low-viscosity PET polyester is a high-shrinkage polyester, and the high-shrinkage polyester accounts for 10% to 50% of the yarn.

[0031] High shrinkage polyester generally refers to polyester that shrinks when heated. This polyester can be processed by heating or other treatments to adjust its shape and size. When the proportion of high shrinkage polyester in the yarn is 10% to 50%, it means that the heat shrinkage performance and other physical properties of the yarn can be adjusted as needed when the yarn is manufactured.

[0032] In a possible implementation, the structure of the fabric is plain, plaid, twill or a variation thereof; or, the structure of the fabric is plain, plaid or a variation thereof. Plain, plaid, twill or a variation thereof refers to different weaving methods or weaving methods of the fabric. Specifically, plain, plaid, twill or a variation thereof describes different arrangements and interweaving methods of the yarns, which has an important influence on the appearance and performance of the final fabric. In practical applications, the appropriate weaving method can be selected according to the purpose and design requirements of the fabric to obtain the best appearance, feel, strength and applicability of the fabric.

[0033] In this embodiment, the preparation method of the PET 100% two-component elastic fabric includes: subjecting 100% polyethylene terephthalate PET polyester to spinning, weaving, dyeing and post-processing in sequence to obtain the fabric.

[0034] In the technical solution of the embodiment of the present application, the elastic fabric is made of 100% PET polyester through spinning, weaving, dyeing and post-finishing, and the bulk coefficient of the fabric is between 1.8 and 2.5. Since the fabric is made entirely of PET material, it is environmentally friendly and sustainable. At the same time, the bulk coefficient of the fabric is between 1.8 and 2.5, and the elastic elongation is greater than 10%, so that the fabric has good fluffiness and softness, and improves the fluffiness and fineness of the elastic fabric. Therefore, it can overcome the problem that the fabric in the prior art lacks sufficient softness and fluffiness, and the fabric has poor fineness of hand feel, and at the same time solves the problem that PBT / PET and PTT / PET elastic composite yarns cannot be recycled and reused.

[0035] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0036] It should be understood that the present application is not limited to the precise structure that has been described above, and that various modifications and changes may be made without departing from its scope. The scope of the present application is limited only by the appended claims.

Claims

1. A PET 100% two-component elastic fabric, characterized in that: The fabric is composed of 100% polyethylene terephthalate (PET) polyester, and the bulkiness coefficient of the fabric is between 1.8 and 2.

5.

2. The fabric according to claim 1, characterized in that: The yarns constituting the fabric are stretch yarns.

3. The fabric according to claim 2, characterized in that: The cross-sectional shape of the monofilament of the yarn is peanut-shaped, glasses-shaped or symmetrical semicircular.

4. The fabric according to claim 1, characterized in that: The yarn is made of high-viscosity PET polyester and low-viscosity PET polyester through composite spinning.

5. The fabric according to claim 4, characterized in that: The high-viscosity PET polyester is a high-shrinkage polyester, wherein the high-shrinkage polyester accounts for 10% to 50% of the yarn.

6. The fabric according to claim 4, characterized in that: The low-viscosity PET polyester is a high-shrinkage polyester, wherein the high-shrinkage polyester accounts for 10% to 50% of the yarn.

7. The fabric according to claim 1, characterized in that: All of the PET is obtained by recycling bottle flakes.

8. The fabric according to claim 1, characterized in that: The fabric has a structure of plain weave, lattice weave or a variation thereof.

9. The fabric according to claim 1, characterized in that: The elastic elongation of the fabric is greater than 10%.

10. A method for preparing a PET 100% two-component elastic fabric, characterized in that: The method comprises: The fabric is prepared by spinning, weaving, dyeing and finishing 100% polyethylene terephthalate (PET) polyester.