JP3208477U - New lightweight, flame retardant thermal insulation fabric - Google Patents

Abstract

The present invention provides a new lightweight, flame-retardant, heat-insulating protective fabric. SOLUTION: A protective fabric layer obtained by knitting a hollow fiber with a knitting machine is included. The hollow fiber is obtained by dissolving a core yarn 3 composed of a surface fiber 4 and a soluble fiber 5, and the surface fiber 4 is a flame-retardant fiber. Or it is the cotton fiber which performed the flame-retardant process, soluble fiber 5 has soluble long fiber yarn or soluble fiber yarn, and soluble fiber 5 is water-soluble PVA fiber or polyester fiber. [Selection] Figure 1

Description

  This utility model relates to the technical field of protective fabrics, and in particular, to a new lightweight, flame-retardant, heat-insulated protective fabric.

  In fire protection, petrochemicals, flammable chemicals, electric power, racing cars, space, military, etc. There is a wide range of materials such as acid and alkali that are anti-static and chemical-resistant, and there are different flame retardant materials in different application fields depending on the flame retardant requirements; In addition to flammability, both heat extinction and thermal stability are required. The reason for this is that when flame retardancy is required, there is always a thermal radiation requirement.

  Costume fabrics must all meet the basic requirements for flame retardancy, heat resistance and thermal stability. Speaking of flame retardant function, flame retardant requirements can be satisfied through flame retardant fiber or flame retardant treatment, and typical flame retardant fibers include aramid 1313, flame retardant viscose, flame retardant polyester or modacrylic fiber, etc. Although it is included, it is common for cotton fabrics to achieve flame retardancy by flame retardant treatment. Speaking of thermal stability, size stability at different temperatures and times and material appearance problems appear, and high temperature stability can be achieved by adding fibers such as LEVLAR. Speaking of heat insulation and heat insulation, the purpose of heat insulation and heat insulation can be achieved in the form of weighting of the fabric or adding a fabric layer to the composite fabric, thereby making the originally non-light clothing more heavy and complex.

  Furthermore, it is necessary to explain that the fabric for flame-retardant thermal protection clothing that is often used in various countries in the world is generally divided into four layers. Yes: 1, Outer layer: 3A fabric, 93% aramid 1313, 5% aramid 1414, 3A spun yarn composed of 2% anti-static fiber, 3A woven fabric knitted with 3A spun yarn is heat stable High, flame retardant, anti-static, weighs usually 180-250 grams, but heat insulation, low protection effect; 2, second layer: 70-100 grams / square meter needle punched nonwoven fabric of aramid 1313 Used for heat insulation and heat insulation strengthening; 3, third layer: a water- and oil-repellent PTFE fiber flame-retardant non-woven fabric that plays a role in water- and oil-repellency; 4, fourth layer : Inner layer, aramid 1313, flame retardant screw In blend woven fabric over vinegar, become a comfort layer, the weight of the woven fabric is 100-150 grams / square meter. The above-mentioned four-layer structure plays the role of flame resistance, static resistance, heat stability, heat insulation, heat retention, water and oil repellency, and skin comfort.

  However, the above-mentioned flame retardant thermal protection clothing has a defect that it is too heavy and difficult to handle during actual use, and the user feels very unnatural and heavy when worn. Therefore, finding lightweight clothing fabrics that remain flame retardant in countries around the world to meet the needs of the market; therefore, tech workers around the world will be able to meet the demands of flame retardant fabrics For example, patent number: ZL2013161683185.1, patent name: Chinese utility model of double fabric, a double fabric woven with aramid 1313, aramid 1414 is disclosed, aramid 1313, Aramid 1414 utilizes the feature of different heat shrinkability, and aramid 1313 is shrunk in a high temperature environment, but aramid 1414 is not shrunk. An air layer is formed between them, thereby achieving heat-insulating and heat-retaining effects; in addition, there is a fabric in which the inner layer structure of the fourth layer is a protruding structure in the prior art, so that comfort can be ensured and more It provides many air layers and plays the role of thermal insulation. Based on the above technology, the design point of the composite fabric is that the air between the spun yarns is increased and the thermal conductivity coefficient of the air is the smallest, so by increasing the air or void ratio between the spun yarns of the fabric, Achieve the effect of improving heat and heat retention.

However, since air flows between the spun yarns of the composite fabric, it can play a role of heat insulation and heat retention to some extent, but the flowing air also has thermal conductivity. In addition, while improving the porosity of the composite fabric, the weight of the fabric also increases, that is, the degree of improvement of the heat insulation effect is limited, and the weight of a single fabric increases.
In addition, any thermal protection fabric has the same requirements for improving thermal effectiveness, reducing weight, and improving comfort.

  The purpose of this utility model is to provide a new lightweight, flame-retardant, heat-insulated protective fabric against the shortage of the prior art. The new type of protective fabric, which is a utility model of this utility model, is more heat-insulating, warmer and lighter, and more comfortable than air. .

In order to achieve the above object, the utility model is realized by the following technical solutions.
A new lightweight, flame-retardant, heat-insulated protective fabric comprising a protective fabric layer knitted with a hollow fiber knitting machine, which is obtained by dissolving a core yarn composed of surface fibers and soluble fibers The surface fiber is a flame retardant fiber or a cotton fiber subjected to a flame retardant treatment, the soluble fiber has a soluble long fiber yarn or a soluble fiber yarn, and the soluble fiber is a water-soluble PVA fiber or a polyester fiber. The flame retardant fiber is aramid, flame retardant viscose, flame retardant polyester or modacrylic fiber.

  The beneficial effects of the utility model are as follows: the new lightweight, flame retardant, heat-insulated protective fabric of the utility model, wherein the fabric fabric includes ordinary woven and knitted products; It contains a protective fabric layer knitted hollow fiber with a knitting machine, the hollow fiber is obtained by dissolving the core yarn composed of surface fiber and soluble fiber, the surface fiber is subjected to flame retardant fiber or flame retardant treatment It is a cotton fiber, the soluble fiber has a soluble long fiber yarn or a soluble fiber yarn, and the soluble fiber is a water-soluble PVA fiber or a polyester fiber. The new lightweight, flame-retardant thermal insulation fabric that is this utility model is a new type of protective fabric that is this utility model compared to the conventional protective fabric in which air stays in the spun yarn and air flows. Is more heat-insulating, warmer and more lightweight and more comfortable.

The utility model will be further described below with reference to the accompanying drawings. However, the embodiment in the appended drawings is not limited to the utility model.

FIG. 1 is a structural image diagram of a core yarn. FIG. 2 is an image of the structure of the hollow fiber. FIG. 3 is an image of the structure of the protective fabric layer.

1 to 3 include:
1: Protective fabric layer
2: hollow fiber 3: core yarn 4: surface fiber 5: soluble fiber.

The utility model will be described below with specific implementation methods.
As shown in FIG. 1 to FIG. 3, it is a new lightweight, flame-retardant and heat-insulating protective fabric, which includes a protective fabric layer 1 knitted by a knitting machine, and the hollow fiber 2 is a surface. It is obtained by dissolving the core yarn 3 composed of the fiber 4 and the soluble fiber 5, and the surface fiber 4 is a flame-retardant fiber or a cotton fiber subjected to flame-retardant treatment, and the soluble fiber 5 has a soluble long fiber yarn or a soluble fiber. There is a thread and the soluble fiber 5 is a water-soluble PVA fiber or a polyester fiber.
Among them, the flame retardant fiber is aramid, flame retardant viscose, flame retardant polyester or modacrylic fiber.

  Further, the hollow fiber 2 is obtained from the core yarn 3, and the core yarn spinning method for ring spinning, the core yarn spinning method for Sirospan spinning, the core yarn spinning method for compact spinning, the core yarn spinning method for air jet spinning, The soluble fiber and the surface fiber are spun into the core yarn 3 by the core yarn spinning method of friction fine spinning, and the soluble fiber is formed into the inner fiber structure of the surface fiber. In addition, fabric fabrics include ordinary woven products and knitted products, and the production method of the new lightweight, flame-retardant, heat-insulated protective fabric can be divided into post-dye production method and pre-dye production method; The production method is as follows: after spinning the core yarn into a cloth fabric by a normal process, the soluble fiber is dissolved to obtain a hollow fiber fabric; the pre-dyed production method is as follows: the core yarn is dissolved Later, spinning and dyeing and post-treatment are performed.

The new lightweight, flame retardant, heat-insulated protective fabric of this utility model can be obtained by the following manufacturing method, specifically:
1. Core fiber spinning method of ring spinning, core yarn spinning method of Sirospan spinning, core yarn spinning method of compact spinning, core yarn spinning method of air jet spinning or core yarn spinning method of friction spinning. Is formed into the core yarn 3, the soluble fiber 5 is made into an inner fiber structure of the surface fiber 4, the soluble fiber 5 has a soluble long fiber yarn or a soluble fiber yarn, and the soluble fiber 5 is a water-soluble PVA fiber or a polyester fiber. The surface fibers 4 are flame retardant fibers or cotton fibers, the flame retardant fibers include aramid, flame retardant viscose, flame retardant polyester or modacrylic fibers;
2. Knitting the core yarn produced in step 1 through a loom into a cloth fabric;
3. Dissolve soluble fiber 5 in fabric, where core yarn 3 obtained with water-soluble PVA fiber dissolves soluble PVA fiber by placing the fabric in warm water; core yarn 3 obtained with soluble polyester fiber Puts the fabric into an alkaline solution to dissolve the soluble polyester fibers;
4. The melted fabric is dyed and manufactured into a new lightweight, flame-retardant, heat-insulated protective fabric by a post-treatment process.

The lightweight, flame-retardant, heat-insulating protective fabric of this utility model has its heat protected by the spun yarn, and the new protective fabric of this utility model is extremely hot compared to the conventional protective fabric in which air flows. Higher thermal insulation effect, lighter weight and higher comfort.
The above content is merely a better example of the utility model, and it may be considered that an ordinary engineer in this field changes in a specific implementation method and application range according to the concept of the utility model, This description should not be taken as limiting the utility model.

Claims (2)

  A new lightweight, flame-retardant, heat-insulating protective fabric having the following characteristics: including a protective fabric layer (1) knitted by a knitting machine with hollow fibers (2), and hollow fibers (2 ) Is obtained by dissolving the core yarn (3) composed of the surface fiber (4) and the soluble fiber (5), the surface fiber (4) is a flame retardant fiber or a cotton fiber subjected to flame retardant treatment, The soluble fiber (5) has a soluble long fiber yarn or a soluble fiber yarn, and the soluble fiber (5) is a water-soluble PVA fiber or a polyester fiber.   The new lightweight flame retardant thermal insulation protective fabric according to claim 1, characterized by the following: the flame retardant fiber is aramid, flame retardant viscose, flame retardant polyester Or modacrylic fiber.

Images