TW202006202A - Heat insulating and cooling fabric - Google Patents

Abstract

Present invention is related to a heat insulating and cooling fabric having an outer layer and an inner layer. The outer layer and the inner layer are fabric being made of an outer yarn and an inner yarn respectively. By utilizing weft knitting technique, the outer yarn and the inner yarn are weft knitted in to a double layered weft knitting fabric. A porous ratio of the inner layer is smaller than a porous ratio of the outer layer. By using unique weaving method, the present invention is able to achieve heat insulating, heat dissipation, one way moisture absorbing and expelling abilities to solve problems of the conventional fabric.

Description

Insulation cool fabric

The invention relates to a fabric with heat insulation effect, especially a fabric with heat insulation and cooling effect.

Fabric is a raw material widely used in clothing and other products, has long been an indispensable product of modern people. With the advancement of technology, fabrics have more and more functions. For example, fabrics that make users feel cool and warm when worn can be seen in the market.

However, in response to the rapid change of the climate, the best solution for hot weather is to wear fabrics with heat insulation, cooling, UV resistance, moisture absorption and perspiration. In the existing cooling fabrics, most of the main technologies for generating the cooling effect are after the fabric is completed, and a cooling effect additive is added to the surface through the post-processing process, so that these existing fabrics are not good in washing durability. In addition, these post-processing processes may cause the surface feel of the fabric to change, making users feel bad.

In order to solve the problems of poor durability and poor feeling of existing functional fabrics, the present invention proposes a heat-insulating cool fabric, which includes a surface layer and a back layer, and the surface layer and the back layer respectively use a surface layer yarn and A lining layer yarn is woven into a fabric, and the surface layer yarn and the inner layer yarn are made into a two-layer weft knitted fabric in a weft knitting structure, wherein a porosity ratio of the surface layer of the thermal insulation cooling fabric is different from that of the inner layer The porosity ratio is relatively small.

Among them, the material of the yarn for the surface layer may be a heat-insulated processing yarn, which is a fiber with heat insulation effect such as polyester, polyamide, polyacrylene and the like.

Wherein, an intermediate layer is included between the surface layer and the inner layer. The intermediate layer uses a yarn for the intermediate layer. The yarn for the intermediate layer is a general fiber or a mixed yarn of the general fiber and the cool processed yarn.

According to the foregoing description, it can be seen that the raw material used for the thermal insulation fabric of the present invention is woven from a yarn with its own function, and the yarn has a special effect through a special processing process. Furthermore, the structure is separated by the method of weaving The technical effects of heat, heat dissipation, cooling sensation, moisture absorption and perspiration and UV resistance solve the problems of the prior art.

Please refer to FIGS. 1-4, which is an embodiment of a thermal insulation cooling fabric of the present invention, which includes a surface layer 10, an intermediate layer 20, and a back layer 30 stacked in sequence, the surface layer 10, the intermediate layer 20, and the The inner layer 30 can be woven into a fabric with a surface layer yarn, a middle layer yarn and a inner layer yarn, the surface layer yarn, the intermediate layer yarn and the inner layer yarn are made into two in a weft knitted structure Layer weft knitted fabric.

The material of the yarn for the surface layer can be a heat-insulated yarn (DTY) or a fully-extended yarn (FDY), which can be heat-insulating polyester, polyamide, polypropylene, etc. fibers, such as It is a fiber containing materials that reflect infrared light and ultraviolet light. The yarn for the inner layer is a cool-feel processing yarn, or a blended yarn of a cool-feel processing yarn and a staple fiber. The yarn for the intermediate layer may be a general fiber or a yarn in which a general fiber is mixed with the cool processed yarn. At least one of the yarn for the inner layer and the yarn for the middle layer is a cool-feel processing yarn or a fully-extended yarn (FDY).

Preferably, in order to achieve more heat dissipation function and better wearing experience, a pore ratio of the surface layer 10 of the thermal insulation cooling fabric is relatively smaller than that of the inner layer 30, so as to achieve a single-direction moisture absorption The perspiration function enables the hot air and sweat to be guided from the direction of the human body to the direction of the outside air more quickly, maintaining the comfort of the human body, as shown in FIG. 1. Here, the so-called porosity ratio refers to the ratio of a fabric area 10A of the surface layer 10 or the inner layer 30 to a fabric porosity 10B.

Wherein, the pore ratio of the intermediate layer 20 to the surface layer 10 and the inner layer 30 can be changed gradually to achieve the aforementioned single guide function, or, as shown in FIG. 2, the intermediate layer 20 can utilize a three-dimensional support structure The surface layer 10 and the inner layer 30 are connected to achieve a more breathable effect. The three-dimensional support structure is a plurality of gauze structures with two ends respectively connecting the surface layer 10 and the inner layer 30.

The manufacturing steps of the thermal insulation cooling fabric may include:

Weaving: the yarn for the surface layer and the yarn for the middle layer The inner layer is made of two layers of weft-knitted fabric with a yarn weft-knitting mechanism. The yarn weft-knitting machine is a 26-28G weft-knitting machine. The surface layer yarn is 100D/144f heat-insulated polyester processing yarn. The inner layer yarn The middle layer yarn is 140D/96f cool sense nylon processing yarn;

Refining: Two layers of weft knitted fabrics are degreased before dyeing, add degreasing agent (row number: DB-808) 1-2g/L, chelating dispersant 1g/L, penetrant 1g/L, temperature 90℃ , Time 20min, processing in the cylinder;

Dyeing: Dyeing prescription, single dyed nylon, acid dye 2%, levelling agent DB-212 1G/L, glacial acetic acid 2 G/L, PH value controlled at 4.0-4.5, dyeing at 100°C, bath ratio 1:12;

Drying: temperature 100℃, drying time 60 seconds;

Setting: Add the prepared hydrophilic softener solution XY-DY to the rolling groove of the molding machine, the dosage is 10g/L, and then send the two-layer weft knitted fabric through the rolling groove to the molding machine at a temperature of 180℃. The rolling liquid rate is 80%, the time is 50S, the first super feed is -5%, the second super feed is 20%, the rolling liquid rate is 70%%, and the width is set to 160cm.

The aforementioned thermal insulation cooling fabric can also be implemented in the following steps:

Weaving: weft-knitting a three-layer weft-knitted fabric by weft-knitting the yarn for the surface layer, the yarn for the middle layer, and the yarn for the inner layer. The yarn weft-knitting machine is a 26-28G weft-knitting machine, and the surface layer yarn is 100D /144f heat insulation polyester processed yarn, the inner layer yarn and the middle layer yarn are 140D/96f or 140D/48f cool sense nylon processed yarn;

Refining: Two layers of weft knitted fabrics are degreased before dyeing, add degreasing agent DB-808, dosage 1-2G/L, chelating dispersant 0.5G/L, penetrant 0.5G/L, temperature 80℃, Time 15min, processing in the tank;

Dyeing: Dyeing prescription, single dyed nylon, acid dye 2%, levelling agent DB-212 1G/L, glacial acetic acid 1G/L, PH value controlled at 4.0-4.5, dyeing at 100°C, bath ratio 1:12;

Drying: temperature 90℃, drying time 65 seconds;

Setting: Add the prepared hydrophilic softener solution XY-DY to the rolling groove of the molding machine, the dosage is 5g/Lg/L, and then send the double-layer weft knitted fabric through the rolling groove to the molding machine at a temperature of 160. ℃℃, the rolling liquid rate is 70%, the time is 45S, the first super feed is -5%, the second super feed is 20%, the rolling liquid rate is 80%, and the width is set to 160cm.

The heat shielding rate of the thermal insulation cooling fabric can reach> 40%, the instantaneous cooling heat flow of the fabric: Q-max≧0.14 W/cm ² (according to FTTS-FA-019; CNS15687), UPF≧50 (AATCC 183-2010 ), the temperature difference of the knitting static thermal image test (according to FTTS-FA-010) can reach more than 1.5 ℃. According to the washing test standard of AATCC-135, it has been washed more than 20 times. The above-mentioned functionalities are kept above 85%. After 20 times, the air permeability is ≧150 cm ³ /cm ² /s (according to ASTM D 737-2004 test standard), the water absorption speed ≦2.3 seconds (according to the FTTS-FA-004 method), and the dyeing fastness is above level 4.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the claimed rights of the invention. Any other equivalent changes or modifications made without departing from the spirit disclosed by the present invention should be included in the claims of the present invention. Within range.

10‧‧‧Surface 20‧‧‧ middle layer 30‧‧‧Floor 10A‧‧‧Fabric area 10B‧‧‧Fabric pores

FIG. 1 is a partial cross-sectional schematic view of the present invention. FIG. 2 is a schematic partial cross-sectional view of another side view of the present invention. 3 is a schematic front view of one of the present invention. FIG. 4 is another schematic front view of the present invention.

10‧‧‧Surface

20‧‧‧ middle layer

30‧‧‧Floor

Claims (7)

A heat-insulating cool fabric comprising a surface layer and a back layer, the surface layer and the back layer are woven into a fabric with a surface layer yarn and a back layer yarn, and the surface layer yarn and the back layer yarn are weft knitted The knitted structure is made as a plurality of layers of weft knitted fabrics, wherein the void ratio of one of the surface layers of the thermal insulation cooling fabric is relatively smaller than the void ratio of the inner layer. According to the heat-insulating and cool-feel fabric of claim 1, the material of the yarn for the surface layer may be a heat-insulating processing yarn, which is polyester, polyamide or polypropylene fiber with heat insulating effect. The heat-insulating cool fabric according to claim 1, wherein the yarn for the inner layer is a cool-feel processed yarn or a fully-extended yarn. The heat-insulating cool fabric as claimed in claim 1, wherein the yarn for the inner layer is a cool-spun processed yarn or a blended yarn of a fully-extended yarn and a staple fiber. The heat-insulating cool fabric as described in any one of claims 2 to 4, a middle layer is included between the surface layer and the inner layer, the middle layer uses a middle layer yarn, and the middle layer yarn is a general fiber Or it is a yarn mixed with general fiber and the cool-feel processing yarn. The heat-insulating cool knitted fabric according to any one of claims 5, wherein the intermediate layer is a three-dimensional support structure connecting the surface layer and the inner layer, and the three-dimensional support structure is a plurality of two ends respectively connecting the surface layer and the inner layer Layer of yarn structure. The heat-insulating cool-knit fabric according to any one of claims 5, wherein the intermediate layer has a porosity ratio between the surface layer and the inner layer.

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