Low-temperature dyed polyester fabric

Abstract

The utility model relates to the technical field of textile fabrics, provides a low-temperature dyed polyester fabric, and solves the problems that the existing polyester fabric is poor in hygroscopicity and air permeability and cannot be adjusted according to the damp and hot state of a human body. Which comprises a through hole surface layer, a middle layer arranged below the through hole surface layer and an inner layer arranged below the middle layer, and is characterized in that the through hole surface layer is formed by a composite structure, the composite structure comprises mesh structures and through hole structures, and the mesh structures and the through hole structures are alternately arranged at intervals in the transverse direction; a plurality of air holes are formed in the upper surface of the through hole surface layer; the inner layer is a weft plain stitch weaved by polyester; the middle layer is a polyvinyl alcohol resin coating, and a plurality of semi-elliptical notches are formed in the polyvinyl alcohol resin coating; and the inner layer and the through hole surface layer are connected through connecting yarns.

Description

Technical Field

[0001] The utility model relates to the technical field of textile fabrics, in particular to a low-temperature dyed polyester fabric. Background Art

[0002] Polyester fiber, commonly known as polyester, has good wear resistance, corrosion resistance and tensile strength. It also has the characteristics of low density, good moisture absorption and easy processing. It is widely used in fields such as textile and clothing manufacturing, bringing a lot of convenience and comfort to our daily life.

[0003] Chinese patent application No. 202010512046.7 discloses a rapid dyeing method for polyester textiles. First, the polyester textile is placed in a surfactant washing liquid for washing and drying to obtain a pretreated polyester textile; then, a disperse dye solution is prepared, a dispersant is added, and the pretreated polyester textile is placed, and dispersed and dried in turn to obtain a pretreated polyester textile; then, the pretreated polyester textile is placed in a high-boiling point solvent at a predetermined temperature for normal pressure and high-temperature dyeing to obtain a dyed polyester textile; finally, washing and drying are performed to complete the dyeing of the polyester textile. This method forms an oily "liquid film" on the surface of the polyester textile, and under the drive of the high-energy oily "liquid film", the disperse dye quickly enters the polyester textile. Compared with the traditional polyester dyeing method, the dyeing performance of the disperse dye on polyester is significantly improved, and the oil bath can be reused, saving the dyeing cost, and having the advantages of economy and environmental protection. However, the high-temperature and high-pressure dyeing method causes greater damage to the yarn, especially the remaining fibers in the composite yarn except polyester.

[0004] Chinese patent application No. 202220231709.2 discloses a low-temperature dyed polyester fabric, comprising: a base fabric layer; the base fabric layer is interwoven with warp yarns and weft yarns, and the warp yarns and the weft yarns both include a first low-temperature dyed polyester yarn and a second low-temperature dyed polyester yarn; the first low-temperature dyed polyester yarn includes spandex filaments, viscose fibers, and shaped low-temperature dyed polyester filaments; the second low-temperature dyed polyester yarn includes spandex filaments, bamboo fibers, and shaped low-temperature polyester filaments. The utility model has a stable structure with high strength, good moisture absorption and breathability, good antibacterial and anti-mite elasticity, simple dyeing and wide use. However, the utility model structure cannot be adjusted according to the heat and humidity state of the human body. Utility Model Content

[0005] Therefore, in view of the above problems, the utility model provides a low-temperature dyed polyester fabric to solve the problems that the existing polyester fabric has poor moisture absorption and air permeability and cannot be adjusted according to the humidity and heat state of the human body.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A low-temperature dyed polyester fabric comprises a perforated surface layer, an intermediate layer arranged below the perforated surface layer, and an inner layer arranged below the intermediate layer, wherein the perforated surface layer is formed by a composite tissue, the composite tissue comprises a mesh tissue and a perforated tissue, the mesh tissue and the perforated tissue are alternately arranged in a transverse direction, and a plurality of air holes are arranged on the upper surface of the perforated surface layer; the inner layer is a polyester woven plain weft needle tissue; the intermediate layer is a polyvinyl alcohol resin coating, and a plurality of semi-elliptical incisions are arranged on the polyvinyl alcohol resin coating; the inner layer and the perforated surface layer are connected by a connecting yarn.

[0008] Furthermore, the smallest transverse circulation unit of the perforated surface layer includes ten weaving rows, wherein columns 1 to 8 form a perforated structure, and columns 9 to 10 form a mesh structure; the smallest longitudinal circulation unit of the perforated surface layer includes ten weaving rows.

[0009] Furthermore, the plurality of semi-elliptical cuts penetrate the polyvinyl alcohol resin coating and the inner layer and are evenly spaced, the aspect ratio of the cuts is 50-60%, and the direction of the cuts is consistent with the warp direction of the inner layer.

[0010] Furthermore, the adhesion amount of the polyvinyl alcohol resin coating on the inner layer is 100-120g / m2.

[0011] Furthermore, the weft plain needle structure is woven from low-temperature dyed polyester yarn, and the low-temperature dyed polyester yarn includes low-temperature dyed polyester filament, polyester fiber filament, and modal filament.

[0012] Furthermore, the mesh structure is formed by interweaving the first warp yarns and the mesh weft yarns, and the openwork structure is formed by interweaving the second warp yarns and the weft yarns.

[0013] Furthermore, the connecting yarn is a blend of low-temperature dyed polyester filament and cotton.

[0014] Furthermore, the warp points of the composite tissue are floating, the weft points are sinking, and the tissue cycle from left to right and from bottom to top is:

[0015] Sinking, sinking, sinking, sinking, sinking, floating;

[0016] Sinking, sinking, sinking, sinking, sinking, floating;

[0017] Ups and downs, ups and downs, ups and downs;

[0018] Up and down, up and down, up and down;

[0019] Ups and downs, ups and downs;

[0020] Up and down, up and down, up and down;

[0021] Up and down, up and down, up and down;

[0022] Up and down, up and down;

[0023] Ups and downs, ups and downs, ups and downs;

[0024] Ups and downs. Ups and downs. Ups and downs.

[0025] Furthermore, the first warp yarn, the second warp yarn and the weft yarn are all blended from low-temperature dyed polyester filament and cotton; and the mesh weft yarn is a coarse-count rotor-spun yarn.

[0026] By adopting the above technical solution, the beneficial effects of the utility model are:

[0027] 1. A hydrophilic polymer polyvinyl alcohol resin coating with a large expansion rate after moisture absorption is used as the middle layer of the fabric, and a low-temperature dyed polyester yarn with a small moisture absorption expansion rate is used to weave the inner layer. At the same time, a semi-elliptical incision is set on the polyvinyl alcohol resin coating. This structural setting can make the elliptical fabric at the incision absorb moisture after the human body sweats, and the polyvinyl alcohol resin coating expands and automatically opens to dissipate heat; it automatically closes when the skin is dry to prevent heat loss;

[0028] 2. The perforated surface layer is formed by a composite tissue, which is a mesh tissue and a perforated tissue. The mesh tissue is a tissue structure with a large floating length, which can increase the thickness without increasing the weight, making the fabric fluffy and not close to the body, which is conducive to heat dissipation and ventilation in summer; at the same time, the unique hole structure of the perforated tissue is similar to the pores in the leaves that play a transpiration role, which is conducive to moisture permeability and moisture dissipation; combining the mesh tissue with the perforated tissue can greatly improve the moisture permeability and air permeability of the fabric;

[0029] 3. The inner layer is woven from low-temperature dyed polyester yarn, which includes low-temperature dyed polyester filament, polyester fiber filament, and modal filament. The yarn dyed at low temperature and normal pressure is less damaged, has good hygroscopicity and softness, and is skin-friendly and comfortable;

[0030] 4. The fabric structure of the utility model realizes moisture absorption and breathability through three steps, which are progressive layer by layer, reflecting the advantages of the fabric in the process of moisture absorption and perspiration: 1) the inner layer absorbs moisture; 2) the middle layer expands, and the fabric automatically opens to dissipate heat; 3) heat is quickly dissipated through the air holes of the perforated surface layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of a low-temperature dyed polyester fabric in an embodiment of the utility model;

[0032] Figure 2 A schematic diagram of a semi-elliptical cutout in an embodiment of the utility model;

[0033] Figure 3This is a diagram showing the organization structure of the perforated surface fabric in the embodiment of the utility model;

[0034] Description of the numbers in the figure: 1-perforated surface layer, 2-middle layer, 3-inner layer, 4-ventilation holes, 5-semi-elliptical incisions, 6-connecting yarns, 11-composite tissue, 111-mesh tissue, 112-perforated tissue. DETAILED DESCRIPTION

[0035] The utility model embodiment is:

[0036] refer to Figures 1 to 3 A low-temperature dyed polyester fabric comprises a perforated surface layer 1, an intermediate layer 2 arranged below the perforated surface layer, and an inner layer 3 arranged below the intermediate layer, wherein the perforated surface layer 1 is formed by a composite tissue 11, the composite tissue comprises a mesh tissue 111 and a perforated tissue 112, the mesh tissue 111 and the perforated tissue 112 are alternately arranged in the transverse direction, the transverse minimum circulation unit of the perforated surface layer 1 comprises ten woven rows, wherein the 1st to 8th columns form the perforated tissue 112, and the 9th to 10th columns form the mesh tissue 111; the longitudinal minimum circulation unit of the perforated surface layer comprises ten woven rows; a plurality of air holes 4 are arranged on the upper surface of the perforated surface layer 1; the inner layer is a polyester woven plain needle tissue; the intermediate layer 2 is a polyvinyl alcohol resin coating, and a plurality of semi-elliptical incisions 5 are arranged on the polyvinyl alcohol resin coating; the inner layer and the perforated surface layer are connected by a connecting yarn 6, and the connecting yarn 6 is a blend of low-temperature dyed polyester filament and cotton.

[0037] Specifically, the plurality of semi-elliptical cuts 5 penetrate the polyvinyl alcohol resin coating and the inner layer 3 and are evenly spaced, the aspect ratio of the cuts is 60%, the cut direction is consistent with the warp direction of the inner layer, and the adhesion amount of the polyvinyl alcohol resin coating on the inner layer is 120g / m 2 ;

[0038] Specifically, the weft plain stitch is woven from low-temperature dyed polyester yarn with a density of 14.5 tex×2, the low-temperature dyed polyester yarn includes low-temperature dyed polyester filaments, polyester fiber filaments, and modal filaments, and the ratio of the low-temperature dyed polyester filaments, polyester fiber filaments, and modal filaments is 2:1:1, the mesh stitch 111 is interwoven with the first warp yarn and the mesh weft yarn, and the openwork stitch 112 is interwoven with the second warp yarn with a density of 14.5 tex×2 and the second warp yarn with a density of 14.5 tex×2. The first warp yarn, the second warp yarn and the weft yarn are all blended by low-temperature dyed polyester filament and cotton, the ratio of the low-temperature dyed polyester filament to cotton is 1:1, and the mesh weft yarn is 72.8tex×4 rotor-spun coarse yarn; the warp tissue point is floating, and the weft tissue point is sinking. The longitudinal yarn represents the first warp yarn and the second warp yarn, and the transverse yarn represents the mesh weft yarn and the weft yarn. ■ represents the warp tissue point a, and □ represents the weft tissue point b. The weft cycle of the composite tissue from left to right and from bottom to top is:

[0039] Sinking, sinking, sinking, sinking, sinking, floating;

[0040] Sinking, sinking, sinking, sinking, sinking, floating;

[0041] Ups and downs, ups and downs, ups and downs;

[0042] Up and down, up and down, up and down;

[0043] Ups and downs, ups and downs;

[0044] Up and down, up and down, up and down;

[0045] Up and down, up and down, up and down;

[0046] Up and down, up and down;

[0047] Ups and downs, ups and downs, ups and downs;

[0048] Ups and downs. Ups and downs. Ups and downs.

[0049] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A low-temperature dyed polyester fabric, comprising a perforated surface layer, an intermediate layer arranged below the perforated surface layer, and an inner layer arranged below the intermediate layer, characterized in that: The porous surface layer is formed by a composite tissue, which includes a mesh tissue and a porous tissue. The mesh tissue and the porous tissue are alternately arranged in the transverse direction, and a plurality of air holes are arranged on the upper surface of the porous surface layer; the inner layer is a polyester woven plain needle tissue; the middle layer is a polyvinyl alcohol resin coating, and a plurality of semi-elliptical incisions are arranged on the polyvinyl alcohol resin coating; the inner layer and the porous surface layer are connected by connecting yarn.

2. A low temperature dyed polyester fabric according to claim 1, characterized in that: The smallest transverse circulation unit of the perforated surface layer includes ten weaving rows, wherein the 1st to 8th columns form a perforated structure, and the 9th to 10th columns form a mesh structure; the smallest longitudinal circulation unit of the perforated surface layer includes ten weaving rows.

3. The low temperature dyeing polyester fabric according to claim 1, characterized in that: The plurality of semi-elliptical cuts penetrate the polyvinyl alcohol resin coating and the inner layer and are evenly spaced. The aspect ratio of the cuts is 50-60%, and the direction of the cuts is consistent with the warp direction of the inner layer.

4. The low temperature dyeing polyester fabric according to claim 1, characterized in that: The adhesion amount of the polyvinyl alcohol resin coating on the inner layer is 100-120g / m 2 .

5. The low temperature dyeing polyester fabric according to claim 1, characterized in that: The weft plain stitch structure is woven from low-temperature dyed polyester yarns, and the low-temperature dyed polyester yarns include low-temperature dyed polyester filaments, polyester fiber filaments, and modal filaments.

6. The low temperature dyeing polyester fabric according to claim 1, characterized in that: The mesh structure is formed by interweaving first warp yarns and mesh weft yarns, and the openwork structure is formed by interweaving second warp yarns and weft yarns.

7. The low temperature dyed polyester fabric according to claim 1, characterized in that: The connecting yarn is a blend of low-temperature dyed polyester filament and cotton.

8. The low temperature dyed polyester fabric according to claim 1, characterized in that: The warp points of the composite tissue are floating, the weft points are sinking, and the tissue cycle from left to right and from bottom to top is: Sinking, sinking, sinking, sinking, sinking, floating; Sinking, sinking, sinking, sinking, sinking, floating; Ups and downs, ups and downs, ups and downs; Up and down, up and down, up and down; Ups and downs, ups and downs; Up and down, up and down, up and down; Up and down, up and down, up and down; Up and down, up and down; Ups and downs, ups and downs, ups and downs; Ups and downs. Ups and downs. Ups and downs.

9. The low temperature dyeing polyester fabric according to claim 6, characterized in that: The first warp yarn, the second warp yarn and the weft yarn are all blended from low-temperature dyed polyester filament and cotton; the mesh weft yarn is a coarse-count rotor-spun yarn.

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