TW201404961A - Thermal conservative and air permeable film, complex film, yarns and manufacturing method thereof - Google Patents

Abstract

A method for fabricating a yarn is disclosed. The method includes following steps. A thermal conservative and air permeable film with multi-porous is provided. A strip is gained by cutting the film. The strip is wrapped by at least one sheath yarn to form a single-covered or multiple-covered yarn. The yarn is thermal conservative, air permeable and odor absorbable by using the film.

Description

Porous heat storage and heat insulating gas permeable film, composite film, yarn and yarn manufacturing method

The present invention relates to a yarn, and more particularly to a yarn having a heat storage heat retention and a breath odor absorption function.

The method for manufacturing a yarn having a heat storage and heat retention function is to grind an ore having a heat storage and heat retention function into a powder, and after the powder is dispersed by a surfactant, is added to the thermoplastic porous plastic in a stepwise quantitative manner, and the two are The masterbatch is prepared by high-temperature mixing or chemical synthesis, and then the partial spinning (Partial Oriented Yarn, POY) is made by the melt spinning process, and the POY is further made of the extended false twisting machine by the extension false twisting machine ( Draw Textured Yarn, DTY); or directly spun into Fully Draw Yarn (FDY). Finally, the finished DTY or FDY is made into woven fabrics or knitted fabrics of various specifications and structures via various knitting or weaving equipment. However, due to the high hardness ore powder contained in the masterbatch, in the process of making POY, DTY and FDY from the masterbatch, on the one hand, when the molten masterbatch is extruded from the spinning nozzle of the melt spinning machine, it is easy to block the spinning nozzle. On the other hand, the high-hardness ore powder wears related production equipment such as the spinning nozzle, the extension and the take-up roller, and thus increases the production cost.

Accordingly, it is an object of the present invention to provide a yarn having a heat storage and heat retention function which avoids clogging the spinning nozzle and reduces wear during the manufacturing process. The situation of production equipment, and can reduce the production cost and increase the A-level rate.

A first aspect of the present invention provides a porous heat storage and heat insulating gas permeable film having a gas permeability of 5 cfm or more. The porous heat storage and heat insulating gas permeable film comprises a porous plastic and a composite ore powder, and the composite ore powder is dispersed in the porous plastic and composited. The weight ratio of the ore powder to the porous plastic is 1 to 99 to 30 to 70. The material of the porous plastic is selected from the group consisting of polyethylene (PE), polypropylene (PP), polyurethane (PU), polytetrafluoroethylene (PTFE), thermoplastic elastomer (TPE), and thermoplastic rubber elastomer ( Group of TPR), thermoplastic polyurethane (TPU), and combinations thereof. The porous structure of porous plastic provides breathability, heat storage and odor absorption. The composite ore powder is composed of a variety of ores. Its main purpose is to provide a heat storage and heat preservation function. For the above purpose, the composite ore powder has a heat transfer coefficient of 3 W/mK to 8 W/mK and a thermal diffusion coefficient of 1×10. ^-6 m ² /sec to 3×10 ^-6 m ² /sec, specific heat of 600 J/kgK to 800 J/kgK, in addition, the average particle size is selected from 200 nm to 5000 nm to increase its porosity in plastics Disperse uniformity in the middle and improve the quality of the porous heat storage and heat-insulating film.

According to one embodiment of the first aspect of the present invention, the composite ore powder is selected from the group consisting of magnesium ruthenate, magnesium oxide, magnesium hydroxide, aluminum oxide, cerium oxide, titanium dioxide, and combinations thereof.

A second aspect of the present invention provides a yarn comprising a first aspect of a porous heat storage and heat insulating film, thereby having a function of venting, absorbing, and heat storage.

According to an embodiment of the second aspect of the present invention, a surface covered yarn is further included, and the surface covered yarn is wrapped around the porous heat storage and heat insulating film.

According to one embodiment of the second aspect of the present invention, the surface layer covered yarn material The material may comprise a porous heat storage and heat permeable film of the first aspect. The material of the surface covered yarn may also be selected from the group consisting of polypropylene, polyester, nylon, acrylic, crepe, tencel cotton, cotton, wool, silk, hemp, and combinations thereof.

A third aspect of the invention provides a method of making a yarn. The utility model comprises a porous heat storage and heat insulating film which provides a first aspect, cuts the porous heat storage and heat insulating film to form a long strip, and wraps the strip with at least one surface covering yarn to form a single or multiple strands. The structure of the covering yarn.

According to one embodiment of the third aspect of the present invention, the porous heat storage and heat insulating film is cut to form a strip having a width of 0.2 cm to 2 cm.

A fourth aspect of the present invention provides a composite film comprising a porous heat storage and heat insulating film and an attachment layer, and the attachment layer may be a nonwoven fabric. The porous heat storage and heat-insulating gas permeable film is the first aspect of the present invention, which has been explicitly disclosed above, and will not be further described herein.

According to one embodiment of the fourth aspect of the present invention, the nonwoven fabric is selected from the group consisting of polyethylene (PE), polypropylene (PP), polyurethane (PU), polytetrafluoroethylene (PTFE), and poly (terephthalic acid). Group of ethylene glycol ester (PET), nylon 6 (PA6), hydrazine, and combinations thereof.

A fifth aspect of the present invention provides a yarn comprising a composite film of a fourth aspect, thereby having a function of venting, absorbing, and heat storage.

According to an embodiment of the fifth aspect of the present invention, a surface covered yarn is further included, and the surface covered yarn is wrapped around the composite film.

According to an embodiment of the fifth aspect of the present invention, the material of the surface covered yarn may comprise the first aspect of the porous heat storage and heat insulating film. The material of the surface covered yarn may also be selected from the group consisting of polypropylene, polyester, nylon, acrylic, crepe, tencel cotton, cotton, wool, silk, hemp, and combinations thereof.

A sixth aspect of the invention provides a method of making a yarn. The composite film comprising a fourth aspect is provided, the composite film is cut to form a composite strip, and the composite strip is wrapped with at least one surface covering yarn to form a single or multiple strands of the composite film. The structure of the covering yarn.

The invention provides a porous heat storage and heat-insulating gas-permeable film, so that the yarn made by the same has the function of heat storage and heat preservation. Because the porous heat storage and heat-insulating film is a porous film structure, when it is applied to the yarn, the subsequent process can be carried out only by the cutting step, and the melt spinning process is not required, so there is no clogging or damage. In the case of the spun, it is also possible to avoid the wear and tear of the production equipment associated with the melt spinning process. And the production rate and the incidence of secondary products will be greatly improved.

Please refer to FIG. 1A, which is a perspective view of a porous heat storage and heat-insulating gas permeable film 110 according to a first embodiment of the present invention. The porous heat storage and heat insulating film 110 comprises a porous plastic 111 and a composite ore powder 112, and the composite ore powder 112 is dispersed in the porous plastic 111, and the weight ratio of the composite ore powder 112 to the porous plastic 111 is 1 to 99 to 30 to 70. . The material of the porous plastic 111 is selected from the group consisting of polyethylene (PE), polypropylene (PP), polyurethane (PU), polytetrafluoroethylene (PTFE), thermoplastic elastomer (TPE), and thermoplastic rubber elastomer. A group consisting of (TPR), thermoplastic polyurethane (TPU), and combinations thereof. The composite ore powder 112 is composed of a plurality of ores, and its main purpose is to provide a heat storage and heat preservation function. For the above purpose, the composite ore powder 112 has a heat transfer coefficient of 3 W/mK to 8 W/mK and a thermal diffusion coefficient of 1 ×10 ^-6 m ² /sec to 3×10 ^-6 m ² /sec, specific heat is 600 J/kgK to 800 J/kgK, in addition, the average particle size is selected from 200 nm to 5000 nm to increase its The uniformity of dispersion in the porous plastic 111 enhances the quality of the porous heat storage and heat insulating film 110. According to one embodiment of the first aspect of the present invention, the composite ore powder 112 is selected from the group consisting of magnesium ruthenate, magnesium oxide, magnesium hydroxide, aluminum oxide, cerium oxide, titanium dioxide, and combinations thereof. In addition to the composite ore powder 112, other components may be added to the porous plastic 111 to increase the function of the porous heat storage and heat insulating gas permeable film 110. For example, bamboo carbon or a long carbon powder may be added to the porous plastic 111 to make the porous heat storage. The heat-insulating and breathable film 110 has a deodorizing function, and for example, a powder containing silver ions can be added to the porous plastic 111, so that the porous heat-storing and heat-insulating film 110 has an antibacterial function. When the porous heat storage and heat-insulating film 110 is produced, calcium carbonate or a foaming agent is added to the plastic to form a porous plastic 111 having a porous structure, so that the porous heat storage and heat-permeable film 110 has a gas permeable and odor-absorbing function, calcium carbonate or The foaming agent is used in an amount of from 4% by weight to 30% by weight of the plastic, so that the porous heat-storing and heat-insulating film 110 has a gas permeability of 5 cfm or more. The foaming agent can be selected from the group consisting of pine oil, heavy pyridine, ether alcohol, phenyl ethyl ester oil, and methyl pentanol. The use of calcium carbonate or a foaming agent to impart a porous structure to the plastic is conventional and will not be repeated here.

The difference between the above-mentioned "plastic" and "porous plastic" is that "plastic" does not have a porous structure. When calcium carbonate or a foaming agent is added to the "plastic", the "plastic" can be made into a porous structure to form a "porous plastic". .

Please refer to FIG. 1B, which is a schematic view showing the cutting of the porous heat storage and heat-insulating gas-permeable film 110 of FIG. 1A. 1B is a strip 700 of the porous heat storage and heat insulating film 110 of FIG. 1A cut into a width L, according to the present invention In one embodiment, the width L is from 0.2 cm to 2 cm.

Referring to FIG. 2, a perspective view of a yarn 200 in accordance with a second embodiment of the present invention is illustrated. The yarn 200 is a structure in which two strips 700 are intertwined to form a double strand.

Please refer to FIG. 3, which is a perspective view of a yarn 300 according to another embodiment of the second aspect of the present invention, and refers to FIG. 1A and FIG. The yarn 300 comprises a strip 700 and a surface covering yarn 310 cut by a porous heat storage and heat insulating film 110, and a strip 700 is wrapped around the strip 700 to form a strip 700. The structure of a single covered yarn. Before wrapping the strip 700 with the surface covering yarn 310, the strip 700 may be first twisted. The so-called "twisting" is to make the two sections of the strip 700 relatively rotate, so that the original straight strip structure becomes spiral. The structure is mainly used to increase the strength of the strip 700.

The aforementioned "core layer portion" means a portion at the center of the yarn 300.

The above-mentioned "wrapping" means that the strip 700 is used as the core layer portion, and the surface covering yarn 310 is wrapped in a spiral form around the outer surface of the strip 700. In accordance with an embodiment of the present invention, a surface covered yarn 310 is wrapped around the outer surface of the strip 700 by a hollow spindle spinning machine.

According to an embodiment of the invention, the material of the surface covering yarn 310 comprises the porous heat storage and heat insulating film 110 of the first aspect of the invention. The material of the surface covering yarn 310 may also be selected from the group consisting of polypropylene, polyester, nylon, acrylic, crepe, tencel cotton, cotton, wool, silk, hemp, and combinations thereof.

The number of surface covered yarns 310 can be flexibly increased as the case may be such that the finished yarn 300 meets market demand.

The method for manufacturing the yarn 300 includes providing a porous heat storage and heat insulation The film 110 cuts the porous heat storage and heat insulating film 110 to form a strip 700. According to an embodiment of the invention, the porous heat storage and heat insulating film 110 is cut to form a strip 700 having a width L of 0.2 cm to 2 cm. The strip 700 is wrapped with at least one surface covering yarn 310 to form a single or multiple stranded yarn structure.

In actual implementation, after cutting the porous heat storage and heat insulating gas permeable film 110 to form the strip 700, the strip 700 can be wound up to form a roll on a tube to facilitate subsequent wrapping of the strip 700 by the surface covering yarn 310. In the step, the strip 700 can be simultaneously added during the coiling to increase the strength of the strip 700, so that it is not easily broken by the external force. The detailed operation modes of the above-mentioned winding and twisting are used in the art and will not be described herein.

Please refer to FIG. 4, which is a perspective view of a yarn 400 according to still another embodiment of the second aspect of the present invention. Please refer to FIGS. 1A and 1B. The yarn 400 comprises a strip 700 cut by the porous heat storage and heat insulating film 110, a surface covering yarn 410 and a surface covering yarn 420, and the surface covering yarn 410 and the surface covering yarn 420 may be the same material or different. The conventional yarn of the material, the heat storage yarn or the other functional yarn, the strip 700 is used as the core layer, and the surface covering yarn 410 and the surface covering yarn 420 are wrapped around the strip 700 to form a double-strand coated yarn.

Please refer to FIG. 5A, which is a perspective view of a composite film 100 according to a fourth embodiment of the present invention. The composite film 100 comprises a porous heat storage and heat insulating film 110 and an adhesion layer 120, and the porous heat storage and heat insulation film 110 is attached to the adhesion layer 120. The attachment layer 120 may be a non-woven fabric. In one embodiment, the non-woven fabric is selected from the group consisting of polyethylene (PE), polypropylene (PP), polyurethane (PU), polytetrafluoroethylene (PTFE), and poly-pair. A group consisting of ethylene phthalate (PET), nylon 6 (PA6), hydrazine, and combinations thereof. The embodiment of the porous heat storage and heat insulating gas permeable film 110 has been explicitly disclosed in the first aspect of the present invention and will not be described herein.

Please refer to FIG. 5B, which illustrates a cutting schematic view of the composite film 100 of FIG. 5A. 5B is a composite strip 100 of the 5A drawing cut into a composite strip 800 having a width L. According to an embodiment of the invention, the width L is 0.2 cm to 2 cm.

Please refer to FIG. 6 , which is a perspective view of a yarn 500 according to a fifth embodiment of the present invention, and refers to FIG. 5A and FIG. 5B simultaneously. The yarn 500 comprises a composite strip 800 and a surface covering yarn 510 cut by the composite film 100, and the composite strip 800 is used as a core layer, and the surface covering yarn 510 is wrapped around the composite strip 800 to form a single sheet. The structure of the covered yarn. Prior to wrapping the composite strip 800 with the surface covering yarn 510, the composite strip 800 may be first twisted to increase the strength of the composite strip 800. According to an embodiment of the invention, the material of the surface covering yarn 510 comprises the porous heat storage and heat insulating film 110 of the first aspect of the invention.

The material of the surface covering yarn 510 may also be selected from the group consisting of polypropylene, polyester, nylon, acrylic, crepe, tencel cotton, cotton, wool, silk, hemp, and combinations thereof.

The number of surface covered yarns 510 can be flexibly increased as the case may be such that the finished yarn 500 meets market demand.

The manufacturing method of the yarn 500 comprises providing a composite film 100, and cutting the composite film 100 to form a composite strip 800. According to an embodiment of the invention, the composite film 100 is cut to form a width L of 0.2 cm to 2 cm composite strip 800, wrapped with at least one surface covered yarn 510 The strips 800 are joined to form a single or multiple strands of covered yarn.

In actual implementation, after the composite film 100 is formed into a composite strip 800, the composite strip 800 can be wound up to form a roll on a bobbin to facilitate subsequent wrapping of the composite strip 800 with the surface covering yarn 510. In the step, the composite strip 800 can be simultaneously added during the coiling to increase the strength of the composite strip 800, so that it is not easy to be broken due to external force pulling. The detailed operation modes of the above-mentioned winding and twisting are used in the art and will not be described herein.

Please refer to FIG. 7 , which is a perspective view of a yarn 600 according to another embodiment of the fifth aspect of the present invention, and refers to FIG. 5A and FIG. 5B simultaneously. The yarn 600 comprises a composite strip 800 cut by the composite film 100, a surface covering yarn 610 and a surface covering yarn 620, and the surface covering yarn 610 and the surface covering yarn 620 can be made of the same material or different materials. The yarn, the heat storage yarn or the other functional yarn, the composite strip 800 is used as the core layer portion, and the surface covering yarn 610 and the surface covering yarn 620 are wrapped around the composite strip 800 to form a double-strand coated yarn.

Example 1: Preparation of porous heat storage and heat-insulating film

The polyethylene is used as a plastic, and the weight of the polyethylene is 100 parts by weight, and 7 parts by weight of the composite ore powder and 5 parts by weight of calcium carbonate are added, and the components of the composite ore powder are magnesium silicate, magnesium oxide and magnesium hydroxide. Al2O3, cerium oxide, and composite ore powder having an average particle diameter of 200 nm to 5000 nm, a heat transfer coefficient of 3 W/mK to 8 W/mK, and a thermal diffusivity of 1 × 10 ^-6 m ² /sec to 3 × 10 ^-6 m ² /sec, specific heat is 600 J/kgK to 800 J/kgK. The above raw materials were kneaded at a temperature of 140 ° C for 20 minutes using a twin-screw kneader, and the master batch was passed through a rheometer (model: Thermo Haake PolyLab System) or a filter type dispersibility test device (Model Labtech Scientific Filter Tester) The pressure evaluation test equipment, after 1200 seconds of pressure rise, pressure rise less than, equal to 10bar (△ P ≦ 10 Bar @ 20 min) specification for functional masterbatch production and evaluation. This pressure rise test method is mainly based on: EN13900-5 and ASTM D6265-98. The prepared masterbatch is melted into a polymer mucilage at a temperature of 140 ° C, and is extruded, bidirectionally and unidirectionally extended to form a porous heat storage and heat insulating gas permeable film.

The test of gas permeability is based on constant pressure difference flow measurement, mainly used in textiles, non-woven fabrics, natural and artificial leather, geotextiles, etc.; air permeability testing of paper, leather and other materials needs to test a certain volume through the sample under a certain pressure difference The time of the air. Can be in accordance with: ASTM D737-2004; JIS L 1096:2010 8.26.1 A; CNS 5612 L3081-1980; DIN 53887: 1986; CNS 12915 L3233-2010 6.27A; ISO 9237: 1995; JIS R 3420: 1999 7.14; -STD-191A-5450; BS 5636:1990 International Test Standard for the detection of gas permeability, and the gas permeability is greater than or equal to 5 cfm as a quality quantitative index.

According to the infrared thermal imaging method planned by the Institute of Textile Industry, the temperature difference between the heat storage and heat preservation of the porous heat storage and heat-insulating film is measured, and the temperature is 2 °C as the quality quantitative index. According to FTTS-FA-018-2008, the odor absorption rate (Amoonia, acetic acid) was tested under the conditions of non-lighting and illumination experiments to test the odor absorption rate of the porous heat storage and heat-insulating gas permeable film, and the odor absorption rate was 70% or more as the quality quantitative index.

Example 2: Preparation of composite film

The polypropylene is used as a plastic, and the weight of the polypropylene is 100 parts by weight, and 7 parts by weight of the composite ore powder and 5 parts by weight of calcium carbonate are added, and the components of the composite ore powder are magnesium silicate, magnesium oxide and magnesium hydroxide. Al2O3, cerium oxide and titanium dioxide, and the composite ore powder has an average particle diameter of 200 nm to 5000 nm, a heat transfer coefficient of 3 W/mK to 8 W/mK, and a thermal diffusivity of 1×10 ^-6 m ² /sec to 3 × 10 ^-6 m ² /sec, specific heat is 600 J/kgK to 800 J/kgK. The above raw materials are kneaded by a twin-screw kneader at a temperature of 160 ° C to prepare a master batch, and the master batch is subjected to a rheometer (model: Thermo Haake PolyLab System) or a filter type dispersibility test device (model number is Labtech Scientific Filter Tester) pressure evaluation test equipment, after 1200 seconds of pressure rise, pressure rise less than, equal to 10bar (△ P ≦ 10 Bar @ 20 min) specification for functional masterbatch production and evaluation. This pressure rise test method is mainly based on: EN13900-5 and ASTM D6265-98. The prepared masterbatch is melted into a polymer mucilage at a temperature of 140 ° C, and is extruded, bidirectionally and unidirectionally extended to form a porous heat storage and heat insulating gas permeable film. The porous heat storage and heat-insulating film is subjected to a bonding process to be attached to the non-woven fabric to form a composite film.

The yarn of the invention can be widely used in daily necessities, such as curtains for home decoration, wall coverings, automotive interior materials, knitted sweaters, woven jackets, mattresses, tread mats, fitness products and thermal blankets.

According to the embodiment of the present invention, the present invention provides a porous heat storage and heat-insulating gas-permeable film, and the porous heat-storing and heat-insulating gas-permeable film is used to make a yarn, so that the yarn made by the same has the heat storage heat insulation and the gas absorbing and odor-absorbing. Features. The method used to manufacture yarns with heat storage and heat preservation function requires melt spinning, which often causes clogging of spinning nozzles or related materials. The porous heat storage and heat-insulating film of the present invention is a porous film structure, and when it is applied to the production of the yarn, only the cutting step can be used for the subsequent process, which not only avoids the lack of the above-mentioned conventional technology. And it is easier and less time-consuming than the former in the overall process, and can be improved in terms of production volume and efficiency.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

100‧‧‧Composite film

110‧‧‧Porous heat storage and heat insulation film

111‧‧‧Porous plastic

112‧‧‧Composite ore powder

120‧‧‧ Attachment

200‧‧‧ yarn

300‧‧‧Yarn

310‧‧‧Surface covered yarn

400‧‧‧Yarn

410‧‧‧Surface covered yarn

420‧‧‧Surface covered yarn

500‧‧‧Yarn

510‧‧‧Surface covered yarn

600‧‧‧Yarn

610‧‧‧Surface covered yarn

620‧‧‧Surface covered yarn

700‧‧‧ strips

800‧‧‧Composite strips

L‧‧‧Width

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

1A is a perspective view showing a porous heat storage and heat-insulating gas permeable film according to an embodiment of the present invention.

FIG. 1B is a schematic view showing the cutting of the porous heat storage and heat-insulating gas-permeable film of FIG. 1A.

Fig. 2 is a perspective view showing the yarn according to a second embodiment of the present invention.

Figure 3 is a perspective view showing a yarn according to another embodiment of the second aspect of the present invention.

Figure 4 is a perspective view showing a yarn according to still another embodiment of the second aspect of the present invention.

FIG. 5A is a schematic perspective view of a composite film according to a fourth embodiment of the present invention.

Fig. 5B is a schematic view showing the cutting of the composite film of Fig. 5A.

Figure 6 is a perspective view showing a yarn according to a fifth embodiment of the present invention.

Figure 7 is a perspective view showing a yarn according to another embodiment of the fifth aspect of the present invention.

300‧‧‧Yarn

310‧‧‧Surface covered yarn

700‧‧‧ strips

Claims (23)

A porous heat storage and heat insulating gas permeable film comprising: a porous plastic selected from the group consisting of polyethylene (PE), polypropylene (PP), polyurethane (PU), polytetrafluoroethylene (PTFE), and heat a group of plastic elastomer (TPE), thermoplastic rubber elastomer (TPR), thermoplastic polyurethane (TPU), and combinations thereof; and a composite ore powder dispersed in the porous plastic and providing a heat storage Insulation function, the composite ore powder has a heat transfer coefficient of 3 W/mK to 8 W/mK, a thermal diffusivity of 1×10 ^-6 m ² /sec to 3×10 ^-6 m ² /sec, and a specific heat of 600 J/kgK. Up to 800 J/kgK and an average particle diameter of 200 nm to 5000 nm, and the weight ratio of the composite ore powder to the porous plastic is 1 to 99 to 30 to 70; the porosity of the porous heat storage and heat insulating film is 5 cfm the above. The porous heat storage and heat-insulating film of claim 1, wherein the composite ore powder is selected from the group consisting of magnesium silicate, magnesium oxide, magnesium hydroxide, aluminum oxide, cerium oxide, titanium dioxide, and combinations thereof. A yarn comprising a porous heat storage and heat insulating film of claim 1. The yarn of claim 3, further comprising a surface covered yarn wrapped around the porous heat storage and heat insulating film. The yarn of claim 4, wherein the material of the surface covering yarn comprises a porous heat storage and heat insulating film of claim 1. The yarn of claim 4, wherein the material of the surface coated yarn is selected from the group consisting of polypropylene, polyester, nylon, acrylic, crepe, tencel cotton, cotton, wool, silk, hemp and the like. Group of. A method for producing a yarn comprising: providing a porous heat storage and heat insulating film of claim 1; cutting the porous heat storage and heat insulating film to form a strip; and wrapping the strip with at least one surface covering yarn. The method of producing the yarn of claim 7, wherein the strip has a width of 0.2 cm to 2 cm. The method for manufacturing the yarn of claim 7 further comprises first twisting the strip and wrapping the strip with the surface covering yarn. The method for producing a yarn according to claim 7, wherein the material of the surface covered yarn comprises a porous heat storage and heat insulating film of claim 1. The method for producing a yarn according to claim 7, wherein the material of the surface covered yarn is selected from the group consisting of polypropylene, polyester, nylon, acrylic, enamel, tencel cotton, cotton, wool, silk, hemp and the like. A group of combinations. A composite film comprising: an adhesive layer; and a porous heat storage and heat insulating film of claim 1, wherein the porous heat storage and heat insulating film is attached to the attachment layer. The composite film of claim 12, wherein the attachment layer is a non-woven fabric. The composite film of claim 13, wherein the nonwoven fabric is selected from the group consisting of polyethylene (PE), polypropylene (PP), polyurethane (PU), polytetrafluoroethylene (PTFE), and polyethylene terephthalate. A group consisting of alcohol ester (PET), nylon 6 (PA6), hydrazine, and combinations thereof. A yarn comprising a composite film of claim 12. The yarn of claim 15 further comprising a surface covered yarn wrapped around the composite film. The yarn of claim 16, wherein the material of the surface covering yarn comprises a porous heat storage and heat insulating film of claim 1. The yarn of claim 16, wherein the material of the surface covering yarn is selected from the group consisting of polypropylene, polyester, nylon, acrylic, enamel, tencel cotton, cotton, A group consisting of wool, silk, hemp, and combinations thereof. A method of making a yarn comprising: providing a composite film of claim 12; cutting the composite film to form a composite strip; and wrapping the composite strip with at least one surface covering yarn. The method of producing the yarn of claim 19, wherein the composite strip has a width of from 0.2 cm to 2 cm. The method for fabricating the yarn of claim 19, further comprising first twisting the composite strip, and wrapping the composite strip with the surface covering yarn. The method for producing a yarn according to claim 19, wherein the material of the surface coated yarn comprises a porous heat storage and heat insulating film of claim 1. The method for producing a yarn according to claim 19, wherein the material of the surface coated yarn is selected from the group consisting of polypropylene, polyester, nylon, acrylic, enamel, tencel cotton, cotton, wool, silk, hemp and the like. A group of combinations.