WO1995022645A1

WO1995022645A1 - A heat-retaining laminated material and the process of making the same

Info

Publication number: WO1995022645A1
Application number: PCT/CN1995/000013
Authority: WO
Inventors: Kuangfei Wang
Original assignee: Kuangfei Wang
Priority date: 1994-02-18
Filing date: 1995-02-14
Publication date: 1995-08-24
Also published as: JPH09508944A

Abstract

The present invention provides a heat-retaining laminated material and the process of making the same, said material includes composite layers of high elastic fibre separated by at least two layers of organic high molecules films for resisting air flow and heat transmission. This material has a good permeability for air and wet as well as lower heat conductivity, higher heat-insulating ability and good bulkiness. The value of the CLO of the material is over 3.

Description

Multi-film layer plush thermal insulation material and manufacturing method thereof

The present invention relates to a novel thermal insulation material and a method for manufacturing the same, and more particularly, the present invention relates to a novel multi-film-pile plush thermal insulation material (sun velvet) and a method for manufacturing the same. Background technique

Up to now, as thermal insulation materials for clothing, people mostly use natural fibers such as wool, cotton, and silk, chemical fibers such as acrylic, nylon, and man-made fibers such as viscose to form mesh or layered fabrics, taking advantage of their low thermal conductivity and Multi-layer nozzle barriers keep warm. However, the above-mentioned layer and net-like thermal insulation materials use surface contact thermal conduction as the main thermal conduction method, and their thermal insulation rate is limited. If the thermal insulation rate is to be increased, the unit dosage and level of the material must be increased, which is inconvenient to use.

Recently, in the field of clothing warmth, a layer with a metal coating layer, a mesh-like warming material, also known as "space cotton" or "metal wool". The thermal insulation material is shielded by one or more single-sided or double-sided metal-coated thin film layers and reflects radiant heat to enhance the thermal insulation of the material, and at the same time, makes the thermal insulation material light and thin. However, the "metal wool" has poor air permeability, hygroscopicity, softness, and fastness to washing, which limits its range of use.

In addition, in other thermal insulation fields such as industry, in addition to the aforementioned layers using fiber and metal plating, and net-like thermal insulation materials, there are layers of porous materials with various inorganic fillers added to increase their thermal insulation.

For example, U.S. Patent Nos. 4,230,057, 4,525,406, 4,508,776, and CN86108763 all disclose structures that include a structure that inhibits heat convection and heat conduction and at least one layer of a substantially continuous, low-emissivity surface layer. Layer structure material. Among them, the structure for inhibiting thermal convection and heat conduction is a fiber material fabric or other filling material having a high porosity; such as a fiber mesh fabric, a pile fabric, an inorganic material layer such as a porous foam sheet, and the like. The at least one substantially continuous, low-emissivity surface layer (surface) is a coating of aluminum, zinc, chromium, or a dielectric (metal) material such as titanium oxide.

The above-mentioned structural materials can greatly inhibit the formation of heat convection, conduction and radiation. 95/22645 Heat is lost, but its thermal insulation effect is still limited. The permeability, moisture absorption, softness and wash fastness of the metal coating are still poor.

For example, according to the above-mentioned Chinese Patent No. CN86108763, the Crowe value (CLO) of this type of metal wool is below 0.88, less than 1; the heat conduction number is in the range of 6-8, and the heat preservation rate is about 50%.

For another example, Keller, Karl discloses a thermal insulation system for cold storage of low-temperature containers in Patent No. Dex5246759. The system consists of at least two multilayer mesh fabrics 4 and 5 and an air-tight film 6 interposed between the two mesh layers. The two multilayer mesh fabrics 4, 5 themselves include a number of fibrous mesh layers 8 and are filled with a pressure-adjustable gas. It can be seen that the thermal insulation system uses a gas-filled layer and a gas-tight film as a barrier for heat transfer. Although it has a certain degree of thermal insulation effect, its air permeability, softness, and hygroscopicity are all poor, and it is only suitable for cold storage of containers. Summary of the Invention

The purpose of the present invention is to provide a novel multi-layer fleece (high-elastic fiber) thermal insulation material in order to overcome the above-mentioned shortcomings. The thermal insulation material not only has excellent thermal insulation properties, excellent air permeability, and display performance. And softness, and the insulation material can be made thin and light.

Another object of the present invention is to provide a novel method for manufacturing a multi-layered pile (high elastic fiber) heat insulation material, which is simple in process and low in cost.

The structure of the multi-layer plush thermal insulation material of the present invention is as follows (see Figure 1);

Between a fluffy and fluffed plush (high elastic fiber) layer, there are at least two extremely thin polymer organic film layers 1, 2 connected to the fiber layer, separating the fluffy and fluffed fiber layer into At least three layers 3, 4, and 5; the thin film layers 1, 2 together with the fleece fiber layer therebetween form a gas barrier layer that blocks heat convection and heat transfer, that is, a thermal barrier layer.

In the multi-layered plush thermal insulation material of the present invention, natural fibers such as wool, silk, cotton, and down can be used as the plush fiber material; synthetic fibers such as acrylic, polypropylene, polyester, and spandex; and artificial fibers such as viscose. . Among them, wool fiber is preferred, and the fiber may be subjected to a felt-proof treatment using a felt-resistant high-elasticity (styling) fiber.

In the multi-layered plush thermal insulation material of the present invention, the polymer film material is preferably polyethylene, polyester, polypropylene, and / or polyurethane, etc., and its thickness is preferably 0.3 to 1 wire (ΙΟμπ). CM Around.

In the multi-layered plush thermal insulation material of the present invention, the polymer film and the plush fiber layer are connected by needle punching and other adhesives or auxiliaries.

In the multi-layered plush thermal insulation material of the present invention, a metal film can be plated on each of the upper and lower film surfaces of the polymer organic thin film. The metal film is an aluminum film, an aluminum alloy film, or another metal (alloy) film having a reflection effect. The metal film layer may be a combination of a metal and a non-woven fabric, a woven fabric, a knitted fabric, or the like, and a combination of a metal and a film material such as polyethylene, polyester, polypropylene, or polyurethane.

In the present invention, auxiliaries such as burners, mothproof agents, and antifungal agents can also be added to the pile (high elastic) fibers. The outermost layer of the heat-insulating material can also be treated for various uses such as waterproof treatment. The outermost surface layer of the thermal insulation material can also be made into a felt layer to be suitable for interior and exterior decoration of buildings.

The multi-membrane plush thermal insulation material of the present invention is prepared by the following method.

Fully open the natural fiber (wool, silk, down or cotton), chemical fiber material (acrylic, nylon, polypropylene, chlorofiber, or spandex), and / or rayon (viscose material), and then comb the cell phone The softened plush (high elastic fiber) is laid between the polymer organic films 1 and 2, and then the plush layers 3, 4 and 5 are penetrated up and down by a needle punching machine to entangle the fibers with the film layers 1 and 2. stand up. After the needling passes through the film layers 1 and 2, the perforations rapidly retract, thereby forming a multilayer nozzle to prevent air convection. The plush layer 4 and the film layers 1 and 2 are needle-punched to form an airbag layer. The plush layers 3 and 5 are connected by needle-punching and are attached to two sides of the airbag layer.

In the manufacturing method of the multi-film-pile fleece thermal insulation material of the present invention, the fibers used may be subjected to a felt-proof treatment. After the fibers are subjected to a velvet treatment, the velvet fiber layer is uniformly sprayed with a setting curing agent, and then The box is dried at 100'C ± 2 (TC to form a highly elastic shaped fiber layer. The subsequent process is the same as above.

3- 1 丝。 In the manufacturing method of the multi-layered plush thermal insulation material of the present invention, the thickness of the thin-film layer is preferably 0.3 to 1 wire.

In the method for manufacturing the multi-layered plush thermal insulation material of the present invention, additives such as a flame retardant, a mothproof agent, or a mildew-proof agent may be added to the high-elasticity or high-elasticity shaped fiber (fleece) to adapt to different uses, The needs of the occasion.

In the method of the present invention, the high-elasticity setting fiber (fleece) layer and the thin Before the film layers are connected by needle punching, a metal (such as aluminum or aluminum alloy) film is deposited on one or both sides of the film layer by evaporation to form a metal film layer, and then needle punching and / or auxiliary agents are used. connection.

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Overview of the drawings

FIG. 1 is a schematic structural diagram of the present invention.

Wherein (1) and (2) are polymer organic thin film layers; (3), (4), and (5) are high elastic fiber or high elastic shaped fiber layers. Best practice method of the present invention

Example 1

As shown in Fig. 1, the 60 ^s wool fiber is fully opened, and it is processed into a net shape on a carding machine. The high-elastic fiber (fleece) web subjected to the texturing process is evenly spread between the polyethylene film layers 1 and 2 with a thickness of 1 wire to a thickness of 1 to 3 mm. On the outer sides of the polyethylene film layers 1 and 2, the above-mentioned pile fiber layers with a thickness of 1 to 3 mm were evenly spread, so that the two sides of the pile fiber network had an average weight of about 60 g / m ² . Use a needle punch to puncture the above 1 to 5 layers back and forth, so that the plush layer is entangled and entangled with the films 1 and 2. The films 1, 2 and the intermediate plush layer 4 form a rich and stable airbag layer. The airbag layer and its two outer plush layers 3 and 5 form a two-layer thin-film layer plush insulation material as shown in FIG. 1. Among them, the plush mesh fibers used between the two film layers 1, 2 are appropriately increased or decreased, so that the final finished product weights thereof range from 100 to 250 g / m ² as shown in Tables 1 and 3, respectively.

Example 2

In addition to using feed fiber 66 ^s 56% wool fibers, 35% 3 denier acrylic fiber, the fiber pile layers 1 a thickness of 5mm, outside film is a polyurethane film 0.4 thick wire, with the other embodiments Example 1, was prepared As shown in Figure 1, the two thin film layer plush insulation material.

Another Bu Xi, weight decrease pile fiber web between two film layers, so that the total weight of the finished Tables 2 and 3 300 g / m ^{^2,} 352g / m ² and 400 g / m ² range.

Example 3

Except that the film was a polypropylene film and had a thickness of 0.7 filaments, and the mat was treated with anti-felt after the fiber was treated, the other embodiments were the same as in Example 1. The anti-felt treatment is as follows:

After the pile fibers are treated with a pile, they are evenly spread into a thin film layer with a thickness of 1 to 3 mm. On the pile layer, the curing curing agent is uniformly sprayed on the pile layer and dried in an oven at 100 ± 20'C to form a high elasticity setting ( Plush) fiber. Then, on the outside of the film layers 1 and 2, the same high-elasticity (fleece) fiber layer with a thickness of 1 to 3 mm and two sides treated with the same anti-felt treatment as described above is also laid and needle-punched to form as shown in Figure 1. The two-film anti-felt and plush insulation material shown.

Example 4

The 65% cotton and 75% viscose fibers were fully loosened on an opener, and after velvet processing, they were evenly spread between polyester film layers 1 and 2 with a thickness of 1.0 silk, and the thickness of each fiber layer 1 to 5mm. The outer surfaces of the two thin film layers 1 and 2 were plated with a gold-aluminum layer by a vacuum evaporation method, and then covered with the same cotton / viscose velvet fiber layer of 1 to 5 mm thick. Needle-punched to form a two-film plush thermal insulation material with a metal film layer as shown in FIG. It is used for the insulation decoration of bedding and the walls of cars and cabins.

Example 5

In addition to raw materials used 60 ^s 40% wool fibers, cotton fibers 35%, viscose 25%, and in the second layer is made of felt side surface of the outer layer of the two layer pile final shaping of the insulation material outside, with the other embodiments 4. The thermal insulation material obtained in this embodiment can be used for the thermal insulation decoration of the inner wall of a building.

The 200 g / m ² sample in Example 1 obtained above was subjected to a comprehensive warming performance test. The results are shown in Table 1.

The 352 g / m ² sample obtained in Example 2 obtained above was measured for its air permeability. The results are shown in Table 2.

Comparing the warming effect of each of the 100g / m ² , 160g / m ² , 200g / m ² , 250g / m ² and 300g / m ² and 400g / m ² samples in Example 1 obtained above, The results are shown in Table 3.

It can be seen from the table that the multi-layered plush thermal insulation material of the present invention has a relatively low thermal conductivity and an extremely high thermal insulation rate (80. 08%); and it is excellent in air permeability, moisture permeability, and bulkiness, and its overall wearing and thermal insulation 6, the comfort index is excellent, the Crowe value reaches 3. 062.

In addition, the thermal insulation material of the present invention can be made thin and light, flame-retardant, anti-felt, waterproof, and low in cost. It can be seen from Table 3 that the clothing and quilt made of the material of the present invention can greatly reduce the effect of humans on the clothing and quilt. Use the necessary amount.

In addition, it goes without saying that the thermal insulation material of the present invention can be used not only for the insulation and decoration of clothes, quilts, and indoor and outdoor buildings, but also for the insulation of indoor and outdoor pipes, boilers, and cold storage; aerospace and aviation and other industrial fields It is very versatile.

Table 1

Multi-layer plush thermal insulation material summary test report form

Table 2

Wool / Nitrile Performance Test Sheet

table 3

Application effect table Thickness Specification Filling application Warming effect

3mm 4 inch shirt and underwear Super two sweaters buy

Apply 5mm jacket More than one leather jacket o

Example o

8mm 20 o0g / m ^z cotton coat over 600g / m ² full wool coat

10mm 250g / 3m ² thin spring and autumn quilt 13 'C— 22 Ό constant temperature sense 12mm 300g / m ² thick quilt super six catty cotton tire case 2 15mm 400g / m ² thick quilt super eight catty cotton tire

Claims

Rights request

A multi-layered plush thermal insulation material, characterized in that the thermal insulation material is a laminated material having at least two high-molecular organic thin film layers that block air convection between the plush layers.

2. The multi-layered plush heat-insulating material according to claim 1, wherein the plush fiber is a high-elasticity shaped (fleece) fiber that has been subjected to a felt-proof treatment.

3. The multi-layered plush thermal insulation material according to claim 1, wherein the plush fibers are wool fibers, acrylic fibers, cotton fibers, and viscose fibers.

4. The multi-film plush thermal insulation material according to claim 1, wherein one or both sides of the thin film is provided with a metal plating layer.

5. The multi-layered plush thermal insulation material according to claim 1, wherein the organic polymer film has a thickness of 0.3 to 1 wire.

6. The multi-layered plush thermal insulation material according to claim 1, wherein the organic film and the plush fiber layer are connected by needle punching and / or an auxiliary agent.

7. The multi-layered plush thermal insulation material according to claim 1, wherein the outer surface layer of the two sides of the thermal insulation material is a felted layer.

8. A method for manufacturing a multi-layered plush thermal insulation material, characterized in that:

The fiber material selected from natural fiber, synthetic fiber or rayon fiber is fully opened, and processed into high elastic fiber (fleece), and spread evenly between two polymer organic film layers 1, 2 to form a block air. Convective airbag layer, and then lay a layer of uniform high-elastic fiber as described above on the outer surface of the organic film on both sides of the airbag layer, and connect the layers with needle punching and auxiliary agents.

9. The method for manufacturing a multi-layered plush heat-insulating material according to claim 8, characterized in that, before the needling connection, the outer side of each layer of plush is subjected to a felt-proof treatment;

Spray the setting curing agent evenly on the outer side of the uniformly piled plush layer, and dry it in an oven at 100 ± 20Ό to form a high-elastic shaped (fleece) fiber layer.

10. The method for manufacturing a multi-film plush thermal insulation material according to claim 8 or 9, wherein the organic thin film is treated with a metal plating layer.