Air-permeable polyester composite fabric

Abstract

This invention provides a breathable polyester composite fabric, comprising: a polyester base layer, an adhesive layer, and a surface layer. The polyester base layer is woven from flame-retardant polyester filaments, the adhesive layer is a fabric polyurethane adhesive, and the surface layer is a woven polyester fabric. The polyester composite fabric of this invention uses a polyester base layer as its foundation, which possesses good mechanical properties and flame-retardant effects. The fabric polyurethane adhesive layer ensures overall structural stability without compromising the overall breathability of the polyester fabric. Finally, the woven polyester surface layer, through the design of different warp and weft yarns, not only has a good appearance structure but also excellent breathability and strength. Acid treatment of the polyester fibers creates pores on their surface, increasing the roughness of the yarn surface. When polyester fibers are combined with ramie fibers, the gaps between the fiber yarns increase, thereby increasing the breathability and comfort of the fabric.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile fiber preparation, in particular to a breathable polyester composite fabric. BACKGROUND

[0002] Polyester fibers, commonly known as "polyester", have a melting point of 255-260℃ and begin to bond at 205℃. It is a synthetic fiber obtained by spinning polyester obtained by polycondensation of organic diacid and diol, which is a high molecular compound. The biggest advantage of polyester fiber is that it has good wrinkle resistance and shape retention, and has high strength and elastic recovery. It has the characteristics of firmness, durability, wrinkle resistance, no stickiness, etc. Polyester has a wide range of applications, and is widely used in clothing and industrial products. Flame-retardant polyester has a wide range of applications due to its permanent flame-retardant properties, and plays an irreplaceable role in industrial textiles, building interior decoration, vehicle interior decoration, etc. In addition, it also plays a role in protective clothing.

[0003] When polyester is made into clothing, it has good strength, smoothness, crispness, easy washing and quick drying, etc. However, the moisture absorption of polyester is poor, and it feels hot when worn, which greatly reduces the comfort of wearing. Therefore, it is necessary to invent a breathable polyester composite fabric. SUMMARY

[0004] In view of the problem of stuffiness and poor air permeability of the existing polyester fabric, the present application aims to provide a breathable polyester composite fabric to meet the use requirements.

[0005] To achieve the above-mentioned purpose, the present application proposes the following technical scheme:

[0006] A breathable polyester composite fabric, comprising a polyester base layer, a glue layer and a surface layer.

[0007] The polyester base layer is woven from flame-retardant polyester filaments, the glue layer is a polyurethane adhesive for fabrics, and the surface layer is a woven polyester fabric.

[0008] The woven polyester fabric includes warp yarns and weft yarns, the warp yarns include first warp yarns and second warp yarns, and the first warp yarns and the second warp yarns are woven in the arrangement order of 1:(3-5); the first warp yarns are spun from cotton fibers and polyester fibers, and the second warp yarns are spun from ramie fibers and polyester fibers.

[0009] The weft yarns include first weft yarns, second weft yarns and third weft yarns arranged along the weft direction, the first weft yarns are polyester fiber filaments, the second weft yarns are ramie fibers, and the third weft yarns are spun from ramie fibers and polyester fibers.

[0010] As a preferred solution of the above solution, the first warp yarn and the second warp yarn of the woven polyester fabric are woven according to a 1:3 arrangement order; and the woven polyester fabric is a heavy plain weave structure.

[0011] As a preferred solution of the above solution, the weaving density of the warp yarn is 110-138 per inch; and the weaving density of the weft yarn is 65-80 per inch.

[0012] As a preferred solution of the above solution, the cotton fiber and the polyester fiber of the first warp yarn are blended at a ratio of (30-50):(50-70).

[0013] As a preferred solution of the above solution, the ramie fiber and the polyester fiber of the second warp yarn are blended at a ratio of (40-60):(40-60).

[0014] As a preferred solution of the above solution, the ramie fiber and the polyester fiber of the third weft yarn are blended at a ratio of (45-65):(35-55).

[0015] As a preferred solution of the above solution, the polyester fiber is composed of the following substances in parts by weight:

[0016]

[0017]

[0018] The polyester fiber is uniformly blended by the above-mentioned substances, and then melt-spun by a spinning machine.

[0019] As a preferred solution of the above solution, the ultraviolet shielding agent is composed of nano-titanium dioxide and nano-zinc oxide at a mass ratio of 15:4; and the copolymerized flame-retardant polyester chip has a phosphorus content of 5500-7100 ppm and a viscosity of 0.75-0.95 dL / g.

[0020] As a preferred solution of the above solution, the polyester fiber is a fiber treated by pickling and washing, specifically, the polyester fiber is pickled in an acidic solution, and then the pickled fiber yarn is washed, and finally dried to obtain the polyester fiber.

[0021] As a preferred solution of the above solution, the acidic solution is a water solution of sodium bisulfate, copper sulfate, ferric chloride, aluminum chloride, or aluminum sulfate, or a dilute hydrochloric acid solution, and the molar concentration of the solution is between 0.5-2M.

[0022] The beneficial effects of the present application are:

[0023] Compared with the prior art, the polyester composite fabric of the present application adopts a polyester base layer as the basis, has good mechanical properties and flame retardant effect; then uses a polyurethane adhesive for fabric as the adhesive layer, which ensures the stability of the overall structure while not affecting the overall air permeability of the polyester fabric; finally, the surface layer uses woven polyester, which uses different warp and weft designs to make the surface layer not only have a good appearance structure, but also have good air permeability and strength. Acid treatment of polyester fibers forms pores on the surface, increasing the roughness of the silk surface. When polyester fibers are combined with ramie fibers, the gap between the fiber silk increases, thereby increasing the air permeability and comfort of the fabric. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0025] Figure 1 is a schematic diagram of the surface layer structure according to the present application;

[0026] Figure 2 is a schematic diagram of the surface layer structure of Example 1;

[0027] Figure 3 is a schematic diagram of the surface layer structure of Example 2;

[0028] Figure 4 is a schematic diagram of the surface layer structure of Example 3.

[0029] In the drawings, 1 is warp yarn, 2 is weft yarn, 11 is first warp yarn, 12 is second warp yarn, 21 is first weft yarn, 22 is second weft yarn, and 23 is third weft yarn. DETAILED DESCRIPTION

[0030] The present application will be further described below in conjunction with specific embodiments, and the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] As Figure 1The application discloses a breathable type polyester composite fabric, which comprises a polyester base layer, a glue layer and a surface layer. The polyester base layer is knitted by flame-retardant polyester filaments, the glue layer is a polyurethane adhesive for fabrics, and the surface layer is a woven polyester fabric. The woven polyester fabric comprises warp yarns and weft yarns, the warp yarns comprise first warp yarns and second warp yarns, and the first warp yarns and the second warp yarns are woven according to a certain arrangement order; the first warp yarns are spun from cotton fibers and polyester fibers, and the second warp yarns are spun from ramie fibers and polyester fibers; the weft yarns comprise first weft yarns, second weft yarns and third weft yarns arranged along the weft direction, the first weft yarns are polyester fiber filaments, the second weft yarns are ramie fibers, and the third weft yarns are spun from ramie fibers and polyester fibers.

[0032] In the application, the polyester base layer knitted by the flame-retardant polyester filaments has good mechanical properties and certain flame-retardant effect; the polyurethane adhesive for fabrics as the glue layer has good bonding effect and stable structure, and the use of the characteristics of the polyurethane does not affect the overall air permeability of the fabric; the woven structure of the surface layer has certain decorative property, the warp yarns and weft yarns involved are added with high-strength ultraviolet-resistant polyester fibers, and cotton fibers and ramie fibers having natural air permeability are added, so that the overall air permeability of the fabric is enhanced.

[0033] Further, the polyester fiber is composed of the following substances in weight parts:

[0034]

[0035] The polyester fiber is uniformly blended by the above-mentioned substances, and then is formed by melt spinning by using a spinning machine. The combination of the polyester chip and the copolymerized flame-retardant polyester chip forms a polyester matrix of 100 parts, has good meltability and flame-retardant function; the addition of the ultraviolet shielding agent improves the ultraviolet resistance of the fiber; and the short-cut glass fiber further enhances the mechanical properties of the fiber. In the application, the polyester chip and the copolymerized flame-retardant polyester chip are soaked in 1.5M siloxane coupling agent for 24-48h, so as to modify the interface of the polyester matrix, modify the active groups of the siloxane coupling agent, make the polyester chip matrix have more active interface contact, and be beneficial to the interface combination of the ultraviolet shielding agent and the like, so that the fiber has higher structural stability while improving various functional indexes.

[0036] Further, the pickling and washing treatment is to put the polyester fiber yarn into an acid solution for pickling, and then wash the pickled product yarn. The process step is to decompose the carbonate by the acid solution to generate carbon dioxide and form pores on the surface of the yarn to increase the roughness of the surface of the yarn, so that the gap between the yarns is increased when the polyester fiber yarn is used, thereby increasing the air permeability of the cloth.

[0037] Embodiment 1

[0038] As shown in Figure 2 , a breathable type polyester composite fabric, comprising a polyester base layer, a glue layer and a surface layer. The polyester base layer is woven by flame-retardant polyester filament, the glue layer is a polyurethane adhesive for fabric, and the surface layer is a woven polyester fabric; the first warp yarn and the second warp yarn of the woven polyester fabric are woven according to the arrangement order of 1:3; and the woven polyester fabric is a heavy plain weave structure. The warp density of the warp yarn is 110 / inch; the weft density of the weft yarn is 80 / inch.

[0039] Further, the cotton fiber and polyester fiber blending ratio of the first warp yarn is 30:70; the ramie fiber and polyester fiber blending ratio of the second warp yarn is 40:60; the ramie fiber and polyester fiber blending ratio of the third weft yarn is 45:55.

[0040] The polyester fiber is composed of the following substances by weight:

[0041]

[0042] The polyester fiber is uniformly blended with the above-mentioned substances, and then melt spinning is carried out by using a spinning machine.

[0043] Further, the ultraviolet shielding agent is composed of nano titanium dioxide and nano zinc oxide in a mass ratio of 15:4; the copolymerized flame-retardant polyester chip adopts a copolymerized flame-retardant polyester chip with a phosphorus content of 7100ppm and a viscosity of 0.85dL / g; the polyester chip and the copolymerized flame-retardant polyester chip are both soaked in 1.5M siloxane coupling agent for 48h. Further, the polyester fiber is a fiber treated by pickling and washing, specifically, the polyester fiber is put into an acidic solution for pickling; then the pickled fiber yarn is washed, and finally dried to obtain the polyester fiber. The acidic solution is a sodium bisulfate aqueous solution, and the molar concentration of the solution is 1M.

[0044] Embodiment 2

[0045] Different from the above embodiment 1, as shown in Figure 3 , a breathable type polyester composite fabric, comprising a polyester base layer, a glue layer and a surface layer. The polyester base layer is woven by flame-retardant polyester filament, the glue layer is a polyurethane adhesive for fabric, and the surface layer is a woven polyester fabric; the first warp yarn and the second warp yarn of the woven polyester fabric are woven according to the arrangement order of 1:4; and the woven polyester fabric is a heavy plain weave structure. The warp density of the warp yarn is 110 / inch; the weft density of the weft yarn is 80 / inch.

[0046] Further, the cotton fiber and polyester fiber blending ratio of the first warp yarn is 50:50; the ramie fiber and polyester fiber blending ratio of the second warp yarn is 60:40; the ramie fiber and polyester fiber blending ratio of the third weft yarn is 65:35.

[0047] The polyester fiber is composed of the following substances by weight:

[0048]

[0049] The polyester fiber is uniformly blended by the above-mentioned substances, and then formed by melt spinning using a spinning machine.

[0050] Further, the ultraviolet shielding agent is composed of nano-titanium dioxide and nano-zinc oxide in a mass ratio of 15:4; the copolymerized flame-retardant polyester chip adopts a copolymerized flame-retardant polyester chip with a phosphorus content of 5500 ppm and a viscosity of 0.75 dL / g; the polyester chip and the copolymerized flame-retardant polyester chip are both soaked in 1.5M siloxane coupling agent for 24 hours.

[0051] Further, the polyester fiber is a fiber treated by acid washing and water washing, specifically, the polyester fiber is put into an acid solution for acid washing, then the fiber yarn after acid washing is washed with water, and finally the polyester fiber is obtained by drying. The acid solution is a dilute hydrochloric acid solution of ferric chloride, and the molar concentration of the solution is 0.5M.

[0052] Example 3

[0053] Different from the above-mentioned example 1, as shown in Figure 4 A breathable polyester composite fabric, comprising a polyester base layer, an adhesive layer and a surface layer. The polyester base layer is woven by flame-retardant polyester filament, the adhesive layer is a polyurethane adhesive for fabric, and the surface layer is a woven polyester fabric. The first warp yarn and the second warp yarn of the woven polyester fabric are woven according to the arrangement order of 1:5; and the woven polyester fabric has a heavy plain weave structure. The warp yarn has a woven density of 138 roots / inch; and the weft yarn has a woven density of 65 roots / inch.

[0054] Further, the cotton fiber and polyester fiber blending ratio of the first warp yarn is 30:70; the ramie fiber and polyester fiber blending ratio of the second warp yarn is 40:60; the ramie fiber and polyester fiber blending ratio of the third weft yarn is 45:55.

[0055] The polyester fiber is composed of the following substances by weight:

[0056]

[0057]

[0058] The polyester fiber is obtained by blending the above-mentioned substances uniformly, and then using a spinning machine to melt spinning.

[0059] Further, the ultraviolet shielding agent is nano titanium dioxide and nano zinc oxide in a mass ratio of 15:4; the copolymerized flame-retardant polyester chip adopts a copolymerized flame-retardant polyester chip with a phosphorus content of 6100 ppm and a viscosity of 0.95 dL / g; the polyester chip and the copolymerized flame-retardant polyester chip are both soaked in a siloxane coupling agent with a concentration of 1.5 M for 36 h.

[0060] Still further, the polyester fiber is a fiber treated by acid washing and water washing, specifically, the polyester fiber is put into an acidic solution for acid washing, then the fiber yarn after acid washing is washed with water, and finally the polyester fiber is obtained by drying. The acidic solution is a dilute hydrochloric acid solution of aluminum chloride, and the concentration of the solution is between 1.5 M.

[0061] Comparative Example 1

[0062] Different from Example 1, in the surface layer woven polyester fabric, the warp yarn and the weft yarn are both polyester fiber filaments, and the polyester fiber filaments are 100% PET. The polyester fiber filaments are not subjected to the steps of acid washing and water washing, and other processes and treatment methods refer to Example 1.

[0063] Comparative Example 2

[0064] Different from Example 1, in the surface layer woven polyester fabric, the warp yarn includes first warp yarn and second warp yarn, the first warp yarn is spun from cotton fiber and polyester fiber, and the second warp yarn is spun from ramie fiber and polyester fiber; the weft yarn includes first weft yarn, second weft yarn and third weft yarn arranged along the weft direction, the first weft yarn is polyester fiber filament, the second weft yarn is ramie fiber, and the third weft yarn is spun from ramie fiber and polyester fiber. The polyester fiber involved in this comparative example is 100% PET.

[0065] The polyester fiber of this comparative example is not subjected to the steps of acid washing and water washing, and other processes and treatment methods refer to Example 1.

[0066] Comparative Example 3

[0067] Different from Example 1, in the surface layer woven polyester fabric, the warp yarn includes first warp yarn and second warp yarn, the first warp yarn is spun from cotton fiber and polyester fiber, and the second warp yarn is spun from ramie fiber and polyester fiber; the weft yarn includes first weft yarn, second weft yarn and third weft yarn arranged along the weft direction, the first weft yarn is polyester fiber filament, the second weft yarn is ramie fiber, and the third weft yarn is spun from ramie fiber and polyester fiber. The polyester fiber of this comparative example is not subjected to the steps of acid washing and water washing, and other processes and treatment methods refer to Example 1.

[0068] Performance test

[0069] Anti-UV property

[0070] The anti-UV property of the fabric is tested according to GB / T 18830-2009 "Evaluation of Anti-UV Property of Textiles". The standard provides that the sample UPF value > 40 and the UV transmittance < 5% can be called "anti-UV product".

[0071] Moisture absorption and sweat releasing property

[0072] The finished fibers are knitted into batts of the same specification, and the moisture absorption and sweat releasing property of the batts is detected. The moisture permeation amount is detected by using the standard of ASTM E96-1995BW, and the temperature is kept at 23℃ and the relative humidity is kept at 50% by using a constant temperature and humidity box. The moisture permeation amounts of the examples 1-3 and the comparative examples 1-3 are measured.

[0073] The sweat releasing property is tested by referring to GB / T 21655.1-2008 "Evaluation of Moisture Absorption and Quick Drying Property of Textiles Part 1: Single Combination Test Method", and the water absorption rate, drop water diffusion time and water evaporation rate are detected.

[0074] Table 1 is the results of sample preparation and detection of the examples 1-3 and the comparative examples 1-3 according to different performance test requirements, and the relevant test results are shown in the following table:

[0075] Table 1: Physical property test of finished fiber yarn

[0076]

[0077] The flame retardant property of the examples 1-3 is tested, and the polyester composite fabric of the application can meet the requirements of fabric flame retardant property and can meet the use requirements. The anti-UV property of the relevant samples is tested, and the samples of the examples 1-3 can also meet the requirements of fabric anti-UV property. In combination with the performance comparison and analysis of Table 1, it can be known that the preparation method of the polyester composite fabric of the application is effective, and can meet the functional requirements and the air permeability requirements of wearing.

[0078] The preferred embodiments of the application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative labor based on the concept of the application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment based on the prior art according to the concept of the application shall be within the protection scope determined by the claims.

Claims

1.A breathable polyester composite fabric, comprising a polyester base layer, a glue layer and a surface layer, characterized in that: the polyester base layer is woven by flame-retardant polyester filaments, the glue layer is a polyurethane adhesive for fabrics, and the surface layer is a woven polyester fabric; the woven polyester fabric comprises warp yarns and weft yarns, the warp yarns comprise first warp yarns and second warp yarns, the first warp yarns are blended from cotton fibers and polyester fibers, and the second warp yarns are blended from ramie fibers and polyester fibers; the weft yarns comprise first weft yarns, second weft yarns and third weft yarns arranged along the weft direction, the first weft yarns are polyester filaments, the second weft yarns are ramie fibers, and the third weft yarns are blended from ramie fibers and polyester fibers; the first warp yarns and the second warp yarns of the woven polyester fabric are woven in a 1:3 arrangement order, and the woven polyester fabric has a heavy plain weave structure; the woven density of the warp yarns is 110-138 per inch, and the woven density of the weft yarns is 65-80 per inch; the polyester fibers are composed of the following components by weight: polyester chips 35-50 parts; copolymerized flame-retardant polyester chips 50-65 parts; an ultraviolet shielding agent 8-15 parts; chopped glass fibers 15-20 parts; and carbonate 0.5-5 parts; the polyester fibers are uniformly blended from the above components and then melt-spun using a spinning machine; the ultraviolet shielding agent is composed of nano-titanium dioxide and nano-zinc oxide in a mass ratio of 15:4; the copolymerized flame-retardant polyester chips are copolymerized flame-retardant polyester chips with a phosphorus content of 5500-7100 ppm and a viscosity of 0.75-0.95 dL / g; the polyester chips and the copolymerized flame-retardant polyester chips are both soaked in a 1.5M siloxane coupling agent for 24-48 hours; the polyester fibers are fibers treated by pickling and washing, specifically, the polyester fibers are pickled in an acidic solution, then the pickled fiber yarns are washed, and finally the polyester fibers are obtained by drying. The blending ratio of the cotton fibers to the polyester fibers in the first warp yarns is (30-50):(50-70). The blending ratio of the ramie fibers to the polyester fibers in the second warp yarns is (40-60):(40-60). The blending ratio of the ramie fibers to the polyester fibers in the third weft yarns is (45-65):(35-55). The acidic solution is an aqueous solution of sodium bisulfate, copper sulfate, ferric chloride, aluminum chloride or aluminum sulfate, or a dilute hydrochloric acid solution, and the molar concentration of the solution is between 0.5 and 2M. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The breathable polyester composite fabric according to claim 1, characterized in that, ​ 3. The breathable polyester composite fabric according to claim 1, characterized in that, ​ 4. The breathable polyester composite fabric according to claim 1, characterized in that, ​ 5. The breathable polyester composite fabric according to claim 1, wherein, ​

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