TW202006208A - Method of producing a thin warm cloth, thin warm cloth made by the method, and warm object - Google Patents

Abstract

The subject application is related to a method of producing a cloth layer. The method uses less fibers to produce a cloth layer with warmth values that are substantially similar to those of a control cloth layer. The method comprising: providing a warm cloth layer comprising combing and cross-lapping fibers; and processing the warm cloth layer by needle punch until the final thickness of the warm cloth layer becoming the range of thickness of the control cloth layer that is 2 and 2.5 times heavier than the warm cloth layer, so a thin warm cloth is made.

Description

Method for manufacturing thin thermal insulation cloth, thin thermal insulation cloth made by this method and thermal insulation objects

The present disclosure relates to a method of manufacturing a thin thermal insulation cloth, in particular to a method of manufacturing a thermal insulation fabric layer using less thermal fiber woven thermal insulation fabric layers whose thermal insulation value and thickness are substantially similar to a control fabric layer, and a thin thermal insulation fabric manufactured by the method and Including the thin thermal cloth.

Warm clothing is required for people's livelihood at low temperatures, and the material and structure of warm clothing usually determine the effect of warmth. There are many cloth materials, including synthetic fibers and several different processes. One of the known materials is melt-blown fiber (BMF) made by micro-woven melt-blown. The so-called micro-woven melt-blown method refers to melting high-molecular materials (such as polypropylene, polyethylene, polyester and nylon) into a melt at a high temperature, and then melt-blending the melt from textile The mouth is extruded to form fibers and blown onto the conveyor belt to accumulate to form a fiber mesh structure, so that the fiber mesh structure is compositely formed into one body to form a nonwoven fabric structure. Meltblown technology has been widely used in the manufacture of fiber non-woven fabrics, and these fiber non-woven fabrics are also suitable for making such as shoe uppers, clothing, filter substrates, protective clothing, oil-absorbing fabrics and other products. Another known material is a nonwoven fabric containing carded overlapping fibers, which is bulkier than a meltblown fiber nonwoven fabric, and is a filler suitable for clothing or warm bedding. The traditional method of increasing the thermal insulation effect is nothing more than increasing the amount of thermal insulation fiber, or changing the same amount of thermal insulation fiber to be more fluffy. However, increasing the amount of thermal insulation fiber to increase the warmth will increase the weight of the clothing, and if the The fiber becomes fluffy, although it can increase the degree of warmth, but the fluffy warm fiber filler may make the volume of the clothes larger and not conducive to thinning. Therefore, designing a fabric with both warmth and lightness is urgently desired by the industry.

An embodiment of the present disclosure provides a method for manufacturing a thin thermal insulation cloth, including: providing a thermal insulation cloth layer including combing and cross lapping (CCL) fibers; processing the thermal insulation by a needle punch The cloth layer until the final thickness of the warm cloth layer is equal to 2-2.5 times the weight of the warm cloth layer, which is a thickness of the control cloth layer, so as to obtain the thin warm cloth. In one embodiment of the present disclosure, the step of processing the warm cloth layer by the needle punch method includes: performing needle punching of the warm cloth layer at 170,000 to 350,000 needles per square meter. In one embodiment of the present disclosure, the weight of the thermal insulation cloth layer is 100 g/cm ² -400 g/cm ² . In one embodiment of the present disclosure, the weight of the warm cloth layer is 100 g/cm ² , and the needle-rolling method is to perform needle rolling of the warm cloth layer at 170,000-350000 stitches per square meter until the end of the warm cloth layer The thickness is 0.40 cm-0.50 cm. In one embodiment of the present disclosure, the layer of thermal insulation fabric weighs 100 g/cm ² , and the needle-rolling method performs needle-rolling of the layer of thermal insulation fabric at 170,000-310,000 needles per square meter. In one embodiment of the present disclosure, the layer of thermal insulation fabric weighs 100 g/cm ² , and the needle-rolling method performs needle-rolling of the layer of thermal insulation fabric at 170,000-220000 needles per square meter. In one embodiment of the present disclosure, the weight of the thermal insulation fabric layer is 200 g/cm ² , and the needle rolling method is to perform needle rolling of the thermal insulation fabric layer at 170,000-350000 stitches per square meter until the end of the thermal insulation fabric layer The thickness is 0.80 cm-1.08 cm. In one embodiment of the present disclosure, the layer of thermal insulation fabric weighs 200 g/cm ² , and the needle-rolling method performs needle-rolling of the layer of thermal insulation fabric at 170,000-287,500 needles per square meter. In one embodiment of the present disclosure, the initial warm cloth weighs 200 g/cm ² , and the needle rolling method is to perform needle rolling of the warm cloth layer at 170,000 to 200,000 needles per square meter. In one embodiment of the present disclosure, the initial warm cloth weighs 400 g/cm ² , and the needle rolling method is to perform needle rolling of the warm cloth layer at 170,000-215,000 needles per square meter. In one embodiment of the present disclosure, the initial warm cloth weighs 400 g/cm ² , and the needle rolling method is to perform needle rolling of the warm cloth layer with 170,000 to 200,000 needles per square meter. In one embodiment of the present disclosure, the warm cloth layer is uniform and impervious to the background color. In one embodiment of the present disclosure, the thermal insulation fabric layer is composed of 100% polyester (Polyester). In one embodiment of the present disclosure, the control fabric layer includes polyester and polypropylene. In one embodiment of the present disclosure, the control fabric layer is composed of 88% polypropylene and 12% polyester. An embodiment of the present disclosure provides a thin thermal cloth manufactured by the method of the foregoing embodiment. An embodiment of the present disclosure provides a thermal insulation article, which includes a thin thermal insulation cloth manufactured by the method of the foregoing embodiment. Based on the above embodiments, the present disclosure is able to provide a fabric having both warmth and lightness characteristics and a manufacturing method thereof.

*B250和B800型不織布未有量產產品，然就B100、B200、B400及BZ500型不織布之厚度及Clo值可知，厚度及Clo值與重量大致呈線性關係。 一、保暖布料層G： 本揭露之保暖布料層為G型不織布，例如3M Thinsulate™ Insulation Type G。下表2顯示本案實施例使用之不同型號之保暖布料層G的重量、厚度及保暖值，該等保暖布料層G係以梳理交疊製程所得之不織布，皆購自台灣明尼蘇達礦業製造股份有限公司。

表3為本揭露針軋條件與單位面積針軋數之列表。其中，單位面積針軋數為(機台針數*針軋頻率)/(機台寬度*線速)，故其可能非為整數而此處以四捨五入記載之。然而應可理解，本案表3所載者之機台寬度、線速、機台針數和針軋頻率可調整以達相同之單位面積針軋數，亦即，本案之實施並無需限制為特定之機台寬度、線速、機台針數和針軋頻率。

各實驗例之單位面積針軋數、針軋加工後之最終厚度及針軋加工後Clo值列於表4。

請同時參照表1、表2及表4。具體來說，由實驗例E1-E9可知，將G100型不織布針軋以每平方公尺170000-350000之條件進行針軋，可將之厚度降至實值上為0.40-0.50公分，亦即接近B200型不織布之厚度(0.40公分)至B250型不織布之厚度之範圍，而此時所得之薄型保暖布的保暖值最低者不低於0.78(實施例E9)，其相較於對照布料層B200型不織布之保暖值僅低0.12，但此薄型保暖布之量確僅對照布料層B200型不織布之一半；而當針軋頻率介於每平方公尺169897-310000針，例如:170000、170733、173333、220000、260000、310000(實施例E2-E7)和此範圍中之任何針軋頻率時，最終薄型保暖布料之厚度比對照布料層B200型不織布的厚度增加0.05-0.10公分，但保暖值卻優於B200型不織布之保暖值；而當針軋頻率降至每平方公尺170000-220000針的加工條件時，最終薄型保暖布的厚度甚至可小於等於較對照布料層B250型不織布之厚度，且保暖值可更勝於B250型不織布之的保暖效果。而當單位面積針軋數太高時，如比較例C1，其即便厚度變薄，確無法維持良好的保暖效果。 而針對G200型保暖布料層經加工所製得之薄型保暖布請再參酌實施例E10-E20。具體來說，透過每平方公尺170000-350000針的針軋密度時，可將原G200型保暖布料層加工至其2-2.5倍重之對照布料層之厚度範圍(亦即B400型不織布厚0.8公分、BZ500型不織布1.1公分)，且其保暖值可接近B400型不織布之保暖值，換言之，本案G200型不織布可透過適當針軋條件加工成厚度及保暖值接近似於G200型不織布的薄型保暖布料；而當單位面積針軋數為170000-287500針/m² 時，加工後之薄型保暖布的厚度相較於B400型不織布僅增加不超過0.27公分，但卻可以一半重量之纖維達成不亞於甚或比B400型不織布更高的保暖值；當當單位面積針軋數為170000-200000針/m² 時，最終薄型保暖布之厚度小於保暖布料層BZ500型不織布之厚度(1.1公分)，但保暖值卻優於BZ500型不織布，且其使用之保溫棉纖維僅對照布料層之40%。然而，太高的針軋密度固然可降低薄型保暖布厚度，但同時會使保暖值降低(如比較例C2)。 若針對G400型不織布而言，參著實驗例E21-25可知，於針軋條件每平方公尺170000-215000的加工製成下，原保暖布料層G400型不織布可被加工為厚度及保暖值皆相近於對照布料層B800型不織布者，且其保暖纖維用量僅為一半；而當降低針軋密度至170000-200000針/平方公分時最終薄型保暖布僅較對照布料層B800型不織布之厚度增加不超過0.1公分，但保暖值卻可較對照布料層B800型不織布之保暖值為高。當然，亦可將本案加工所得之薄型保暖布使用於各種保暖衣物，其中因其厚度較薄，因此更適用於鞋類等厚度不宜太厚、重量不宜過重，且仍有保暖需求之產品。 綜上，本揭露利用特定的「針軋方式」生產不織布產品，亦即將保暖不織布以針軋加工至其2倍至2.5倍重量之對照布料層厚度範圍，但其保暖值卻可接近該對照布料層保暖值，同時依針軋加工而使其具備了強力、保暖且輕盈的特性。更重要的是，本揭露之保暖布料層是均勻的且不透底色的，其可製成的保暖布料層或保暖物件(例如衣料襯裡及鞋子襯裡)。 本揭露並不限於本文中所揭示之特定結構或設置，本揭露所屬技術領域具有通常知識者當可理解，在本揭露之精神下，本文中所揭示之此等結構及設置在一定程度上可經改變或置換。亦應瞭解本文所使用之術語及描述方向或相對位置之用語僅為描述特定實施方式及便於說明與理解而使用，並不意欲限制本揭露之範圍。The embodiments of the present disclosure will be described in detail below with reference to the drawings, which include various embodiments. It should be noted that the content of the embodiment of this case is only used to illustrate a specific aspect of this disclosure, and does not limit the scope of disclosure disclosed in this case. Non-woven fabrics are textiles made from natural or synthetic fibers. Since this textile is a material that has not been manufactured by the weaving process, this kind of product is generally called non-woven fabric. According to different uses and characteristics, the manufacturing methods of non-woven fabrics include chemical bonding, thermal bonding, sewing ingots, carding into nets, water needles, spunbonding, melt-blown, compounding, air-laid nets, etc. The invention disclosed is directed to the non-woven products produced in the process including the "needle rolling method", which has shock resistance, compression resistance, heat insulation, breathability, softness, easy sewing, folding resistance, insulation, rainproof, leakproof, and tough , Antibacterial, hygienic, strong water absorption and low cost; in addition, the material insulation cloth layer used to make the thin insulation cloth is uniform and impervious to the background color. In this case, the so-called "uniform and transparent" means that the fibers of the warm cloth layer are evenly distributed, and when the warm cloth layer is placed on a background with the background as the base, it cannot be compared with the naked eye. The color of the background is observed through the warm fabric layer on the other side of the background. Therefore, the thin thermal insulation cloth (non-woven fabric) finally produced in this disclosure also has the characteristics of strength, warmth and lightness, and can be further made into thermal insulation objects, especially suitable for thermal insulation objects requiring limited thickness (for example, as thermal insulation for shoes) Filler), widely used in the surrounding living environment. FIG. 1 shows a schematic diagram of the warm fabric layer and the control fabric layer of the present disclosure. FIG. 2 shows a schematic view of the warm cloth layer of FIG. 1 processed by needle rolling. FIG. 3 shows the manufacturing flow chart of the disclosed thin thermal insulation cloth. Please refer to Figure 1, Figure 2 and Figure 3 at the same time. In step S1, the warm cloth layer G is a fiber processed by combing and cross lapping (CCL), which is composed of 100% polyester (Polyester). In an embodiment of this case, The material of the fibers of the thermal insulation cloth layer G may be polyethylene terephthalate (PET). In contrast, the control cloth layer B is a melt-blown fiber (BMF) made of a conventional microwoven melt-blown method, which includes polyester (Polyester) and polypropylene (polypropylene). In an embodiment of the present case, the control cloth layer B is composed of 88% polypropylene and 12% polyester. Step S2 is to process the warm fabric layer G with a needle punch until the final thickness of the warm fabric layer G is substantially equal to the thickness of the control fabric layer B which is 2-2.5 times the weight of the warm fabric layer. The disclosed thin thermal insulation cloth, and the thermal insulation value of the thin thermal insulation cloth will be substantially similar to that of the control cloth layer B, but the weight is significantly lower than the weight of the control cloth layer B, that is, only the control cloth layer is about 40~50 % Weight. The "thickness" in this case refers to the standard test method for the thickness of high loft nonwoven fabrics (ASTM D5736, Standard Test Method for Thickness of High loft Nonwoven Fabrics) under the pressure of 0.002 pounds per square inch. ) The measured thickness. However, since the thermal insulation fabric layer G, the control fabric layer B and the final thin thermal insulation fabric of this case are not made of steel, it should be understood that the thickness mentioned in this case may be slightly different when measured, and the "real value" To summarize these minor differences. The needle rolling method disclosed in the present disclosure can utilize the needles N with triangular cross-sections and grooves on the edges to perform positive and negative needle punching on the fiber web, so that the fibers are entangled up and down. When the needle N passes through the fiber web, the fibers will be entangled inside the fiber layer due to the pushing of the needle groove. Because of the friction between the fibers, the original bulky web will be compressed. After the needle N exits the fiber web, the fiber bundle pierced leaves the needle groove and stays in the fiber web. Many fibers entangle the fiber web and cannot be restored to the original bulky state. The fibers in the fiber web are entangled with each other to form a needle-rolled non-woven fabric with a certain strength and thickness (that is, a thin warm cloth). However, it should be understood that there is no limit to the cross section of the rolling pin, and it can also be a cross section of other forms. In this disclosure, the preferred weight of the thermal insulation fabric layer G is 100 g/cm ² -400 g/cm ² , and the smaller the needle rolling density (that is, the fewer the number of needles per unit area), the resulting thin thermal insulation fabric The thicker the thickness, the looser the fiber arrangement and the higher the warmth. On the contrary, the greater the needle rolling density (ie, the greater the number of needle rolling per unit area), the thinner the final thickness of the thin thermal cloth, the denser the fiber arrangement, and the lower the thermal retention. In this case, the original thermal fabric layer G is needle-rolled to the thickness of the control fabric layer B of 2-2.5 times the weight of the thermal fabric layer G through the appropriate number of needles per unit area to achieve the desired effect in this case. The needle rolling density in this case is related to the weight of the warm cloth layer, but it is better to perform the needle rolling of the warm cloth layer at approximately 170,000 to 350,000 stitches per square meter. Among them, when the thermal insulation fabric layer G is 100g/cm ² , a preferred needle rolling condition is to perform needle rolling with 170,000-350000 needles/m ² , and process the thermal insulation fabric layer G into a thin thermal insulation with a thickness of 0.40-0.50 cm The thickness of the cloth is substantially in the range of the thickness of the control fabric layer of 250 g/cm ² -200 g/cm ² , and the thermal value of the thin thermal cloth will also be close to 250 g/cm ² -200 g/cm ² Compare the warmth value of the fabric layer. When the warm fabric layer G is 100 g/cm ² , another preferred needle rolling condition is 170000-310000 needles/m ² , and another preferred needle rolling condition is 170000-220000 needles/m ² . When 200 g/cm ² is used for the thermal insulation fabric layer G, a preferred needle rolling condition is to perform needle rolling with 170,000-350000 needles/m ² , and process the thermal insulation fabric layer G into a thin thermal insulation fabric with a thickness of 0.80-1.08 cm , The thickness time value is close to the thickness range of the control fabric layer of 400 g/cm ² -500 g/cm ² , and the thermal value of the thin thermal cloth will also be close to 400 g/cm ² -500 g/cm ² In contrast, the warmth value of the fabric layer. When 200 g/cm ² is selected for the warm fabric layer G, another preferred needle rolling condition is 170000-287500 stitches/m ² , and another preferred needle rolling condition is 170000-200000 stitches/m ² . When 400 g/cm ² is selected for the thermal insulation fabric layer G, a preferred needle rolling condition is to perform needle rolling processing at 170,000-215,000 needles/m ^2. The thermal insulation fabric layer G can be processed into a thin thermal insulation fabric with a thickness of 1.60 cm. The real value of the thickness is close to the thickness of the control fabric layer of 800 g/cm ² , and the thermal insulation value of the thin thermal insulation cloth will also be close to that of the control fabric layer of 800 g/cm ² at this time. When 400 g/cm ² is selected for the warm fabric layer G, another preferred needle rolling condition is 170000-200000 needles/m ² . The following will further illustrate the case with examples. 1. Control fabric layer B: The control fabric layer disclosed in this disclosure is a B-type non-woven fabric, such as 3M Thinsulate™ Insulation for Footwear Types B/BQ/BZ, which is made by melt-blowing and non-needle rolling. Table 1 below shows the weight, thickness, and warmth value of different types of B-type nonwoven fabrics used in the examples of this case. Among them, B100, B200, B400, and BZ500 nonwoven fabrics were purchased from Taiwan Minnesota Mining Manufacturing Co., Ltd. The Clo value (Clothing Insulation) in the table is referred to as the "warming value" in this case, and it is often used to indicate the thermal insulation effect of "clothing". The higher the value, the better the thermal insulation effect. In addition, the Clo values in this article are all measured by Thermal Resistance (Rcf) ASTM F 1868 standard test method.

*B250 and B800 non-woven fabrics are not mass-produced. However, the thickness and Clo value of B100, B200, B400 and BZ500 non-woven fabrics are known. The thickness and Clo value are roughly linear with weight. 1. Thermal insulation fabric layer G: The thermal insulation fabric layer disclosed herein is a G-type non-woven fabric, such as 3M Thinsulate™ Insulation Type G. The following table 2 shows the weight, thickness and insulation value of different types of thermal insulation fabric layers G used in the examples of this case. These thermal insulation fabric layers G are non-woven fabrics obtained by carding and overlapping processes, all purchased from Taiwan Minnesota Mining Manufacturing Co., Ltd. .

Table 3 is a list of the disclosed needle rolling conditions and the number of needle rolling per unit area. Among them, the number of needles per unit area is (the number of needles of the machine * needle rolling frequency) / (the width of the machine * linear speed), so it may not be an integer and is described here by rounding. However, it should be understood that the machine width, line speed, machine needle number and needle rolling frequency as set out in Table 3 of this case can be adjusted to achieve the same number of needle rolling per unit area, that is, the implementation of this case does not need to be limited to specific Machine width, line speed, machine needle number and needle rolling frequency.

The number of needle rolls per unit area of the experimental examples, the final thickness after needle rolling and the Clo value after needle rolling are shown in Table 4.

Please refer to Table 1, Table 2 and Table 4 at the same time. Specifically, from the experimental examples E1-E9, it can be seen that the needle rolling of the G100 type non-woven fabric is carried out under the conditions of 170,000-350000 per square meter, and the thickness can be reduced to the real value of 0.40-0.50 cm, which is close to The thickness of B200 type non-woven fabric (0.40 cm) to the thickness of B250 type non-woven fabric, and the lowest insulation value of the thin thermal insulation cloth obtained at this time is not less than 0.78 (Example E9), which is compared with the control fabric layer B200 type The thermal value of the non-woven fabric is only 0.12 lower, but the amount of this thin thermal cloth is only one-half of that of the fabric layer B200 non-woven fabric; and when the needle frequency is between 169897-310000 needles per square meter, for example: 170000, 170733, 173333, 220000, 260000, 310000 (Examples E2-E7) and any pinning frequency in this range, the thickness of the final thin thermal insulation fabric is increased by 0.05-0.10 cm compared to the thickness of the control fabric layer B200 nonwoven fabric, but the thermal insulation value is better than The thermal value of B200 type non-woven fabric; when the needle rolling frequency is reduced to the processing conditions of 170000-220000 needles per square meter, the thickness of the final thin thermal cloth can even be less than or equal to the thickness of the comparative fabric layer B250 non-woven fabric, and the thermal value It is better than the warming effect of B250 non-woven fabric. On the other hand, when the number of needles per unit area is too high, as in Comparative Example C1, even if the thickness becomes thinner, it is indeed impossible to maintain a good thermal insulation effect. For the thin thermal cloth made by processing the G200 thermal cloth layer, please refer to Examples E10-E20. Specifically, through the needle density of 170,000-350000 stitches per square meter, the original G200 thermal insulation fabric layer can be processed to the thickness range of 2-2.5 times the weight of the control fabric layer (that is, the thickness of the B400 nonwoven fabric is 0.8 Cm, BZ500 non-woven fabric 1.1 cm), and its thermal value can be close to the thermal value of B400 non-woven fabric, in other words, the G200 non-woven fabric in this case can be processed into a thin thermal fabric with a thickness and thermal value similar to the G200 non-woven fabric through appropriate needle rolling conditions ; When the number of needles per unit area is 170000-287500 needles/m ² , the thickness of the thin thermal cloth after processing is only increased by no more than 0.27 cm compared to the B400 non-woven fabric, but it can be no less than half the weight of fiber It is even higher than B400 non-woven fabric; when the number of needles per unit area is 170000-200000 needles/m ² , the thickness of the final thin thermal insulation fabric is less than the thickness of the thermal insulation layer BZ500 non-woven fabric (1.1 cm), but the thermal value But it is better than BZ500 non-woven fabric, and the insulation cotton fiber used is only 40% of the control layer. However, too high a needle-rolling density can certainly reduce the thickness of the thin thermal insulation cloth, but at the same time it will reduce the thermal insulation value (as in Comparative Example C2). For the G400 type non-woven fabric, referring to Experimental Example E21-25, it can be seen that under the needle-rolling condition of 170000-215000 per square meter, the original thermal insulation fabric layer G400 type non-woven fabric can be processed into both thickness and thermal value Similar to the control fabric layer B800 non-woven fabric, and the amount of thermal fiber is only half; when the needle density is reduced to 170000-200000 needles/cm ^ 2, the final thin thermal insulation fabric is only thicker than the control fabric layer B800 non-woven fabric. It is more than 0.1 cm, but the heat preservation value can be higher than that of the control fabric layer B800 non-woven fabric. Of course, the thin thermal cloth produced in this case can also be used in various warm clothing. Among them, because of its thin thickness, it is more suitable for footwear and other products where the thickness should not be too thick, the weight should not be too heavy, and there is still a need for warmth. In summary, this disclosure uses a specific "needle rolling" method to produce non-woven products, that is, the warm non-woven fabric is needle-rolled to the thickness of the control fabric layer of 2 to 2.5 times its weight, but its warmth value can be close to the control fabric The thermal value of the layer is also strong, warm and light according to the needle rolling process. More importantly, the thermal insulation fabric layer of the present disclosure is uniform and impervious to the background color, and it can be made into a thermal insulation fabric layer or thermal insulation objects (such as clothing lining and shoe lining). This disclosure is not limited to the specific structures or configurations disclosed in this article. Those with ordinary knowledge in the technical field of this disclosure should understand that, in the spirit of this disclosure, such structures and arrangements disclosed in this article can be to a certain extent. Changed or replaced. It should also be understood that the terms used herein and the terms describing directions or relative positions are used only for describing specific embodiments and for ease of illustration and understanding, and are not intended to limit the scope of the present disclosure.

B‧‧‧Control fabric layer G‧‧‧ Warm fabric layer N‧‧‧ Needle S1‧‧‧Step S2‧‧‧Step

The drawings described below are for illustrative purposes only, and are not intended to limit the scope of the present disclosure in any way. FIG. 1 shows a schematic diagram of the disclosed warm fabric layer and the control fabric layer. FIG. 2 shows a schematic view of the warm cloth layer of FIG. 1 processed by needle rolling. FIG. 3 shows the manufacturing flow chart of the disclosed thin thermal insulation cloth.

S1‧‧‧Step

S2‧‧‧Step

Claims (17)

A method for manufacturing a thin warm cloth, comprising: providing a warm cloth layer including combing and cross lapping (CCL) fibers; processing the warm cloth layer by a needle punch until the warm cloth The final thickness of the layer is equal to 2-2.5 times the weight of the warm cloth layer, which is the thickness of the control cloth layer, so as to obtain the thin warm cloth. The method according to claim 1, wherein the step of processing the warm cloth layer by the needle punch method includes: performing needle punching of the warm cloth layer at 170,000 to 350,000 needles per square meter. The method according to claim 2, wherein the weight of the thermal insulation cloth layer is 100 g/cm ² -400 g/cm ² . The method according to claim 3, wherein the layer of the thermal insulation fabric has a weight of 100 g/cm ² , and the needle rolling method is to perform needle rolling of the thermal insulation fabric layer at 170,000-350000 stitches per square meter until the final thickness of the thermal insulation fabric layer It is 0.40 cm-0.50 cm. The method according to claim 4, wherein the layer of the warm cloth has a weight of 100 g/cm ² , and the needle rolling method is to perform needle rolling of the layer of warm cloth with 170,000-310,000 stitches per square meter. The method according to claim 4, wherein the layer of the thermal insulation fabric weighs 100 g/cm ² , and the needle rolling method is to perform needle rolling of the layer of the thermal insulation fabric at 170,000-220000 stitches per square meter. As in the method of claim 3, wherein the layer weight of the thermal insulation fabric is 200 g/cm ² , the needle rolling method is to perform needle rolling of the thermal insulation fabric layer at 170,000-350000 stitches per square meter until the final thickness of the thermal insulation fabric layer It is 0.80 cm-1.08 cm. The method according to claim 7, wherein the layer of the warm cloth has a weight of 200 g/cm ² , and the needle rolling method is to perform needle rolling of the layer of warm cloth with 170,000-287,500 stitches per square meter. The method according to claim 7, wherein the initial warm cloth weighs 200 g/cm ² , and the needle rolling method is to perform needle rolling of the warm cloth layer at 170,000 to 200,000 needles per square meter. The method according to claim 3, wherein the initial warm cloth weighs 400 g/cm ² , and the needle rolling method is to perform needle rolling of the warm cloth layer at 170,000-215,000 needles per square meter. The method according to claim 10, wherein the initial warm cloth weighs 400 g/cm ² , and the needle rolling method is to perform needle rolling of the warm cloth layer with 170,000-200000 needles per square meter. The method according to claim 1, wherein the warm cloth layer is uniform and impervious to the background color. The method according to claim 1, wherein the thermal insulation fabric layer is composed of 100% polyester (Polyester). The method of claim 1, wherein the control fabric layer comprises polyester and polypropylene. The method of claim 14, wherein the control fabric layer is composed of 88% polypropylene (polypropylene) and 12% polyester (polyester). A thin thermal cloth made by the method of any one of claims 1-15. A thermal insulation article comprising a thin thermal insulation cloth made by the method of any one of claims 1-15.

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