JP3178365U - Insulated fabric - Google Patents

Abstract

An object of the present invention is to provide a heat-insulating fabric that does not easily escape from air and achieves a continuous heat-retaining effect.
A temperature-controlling fabric layer comprising a temperature-controlling fabric layer and a heat-insulating layer has a material that absorbs heat and has a moisture content difference between 90% and 40% relative humidity between 1% and 1%. 8%. The heat insulating layer is adjacent to the outer surface of the temperature control fabric layer, and is used to reduce the escape of heat generated by the temperature control fabric layer to achieve a heat retaining effect.
[Selection] Figure 1

Description

  The present invention relates to a woven fabric, and more particularly to a heat-insulating woven fabric.

  At present, there are many types of commercially available heat insulation products, such as far-infrared winter clothes, down jackets, fleeces, moisture-absorbing heat-generating clothes, and the like. Among them, down jackets are the most common, and their warming effect improves as the thickness of the thermal insulation layer increases, but the increase in the thermal insulation layer thickness often increases discomfort during wearing, and the appearance The beauty of will also be impaired. On the other hand, hygroscopic fever clothes that have been popular in recent years can improve the disadvantage of the down jacket being thick and heavy, but its single-layer design still does not achieve a sustained warming effect, and the hygroscopic fever clothes The cost of is higher than other commonly used thermal insulation materials. Therefore, if the thickness of the single structure of the moisture-absorbing heat generating clothes is increased, the cost is increased, so that it is not economically efficient.

  Accordingly, one aspect of the present invention provides a warm fabric. This heat insulating fabric includes a temperature control fabric layer and a heat insulating layer. The fabric material used for the temperature-controlled fabric layer has a hygroscopic exothermic property, and this temperature-controlled fabric layer has a moisture content difference of 1% to 8% at 90% and 40% relative humidity, preferably Is from 2% to 8%, more preferably from 4% to 8%. The heat insulating layer is adjacent to the outer surface of the temperature control fabric layer, and is used to block heat generated by the temperature control fabric layer from escaping.

According to an embodiment of the present invention, the heat insulating layer includes a gas barrier layer. This gas barrier layer has an air permeability of 75 cm ³ / cm ² . s, preferably 50 cm ³ / cm ² . s, more preferably 30 cm ³ / cm ² . is less than s. The gas barrier layer is a fabric layer having a certain air permeability, a coated fabric layer, or a film layer.

  According to another embodiment of the present invention, the thermal insulation layer includes a woven insulation layer. The woven insulation layer should have a heat retention rate of more than 20%, preferably more than 30%, more preferably more than 40%.

  According to still another embodiment of the present invention, a dry fabric layer positioned on the inner surface of the temperature-controlled fabric layer and having a moisture content of 0.01% to 1% at a relative humidity of 65% is further provided.

  From the above, in the heat insulation fabric of the present invention, by providing the heat insulation layer outside the temperature control fabric layer, the heat generated by the temperature control fabric layer is blocked by the heat insulation layer, making it difficult to escape to the air, and a continuous heat insulation effect Turned out to achieve.

  The following description of the drawings is intended to make the foregoing and other objects, features, advantages, and embodiments of the present invention more comprehensible.

1 is a schematic exploded view of a heat insulating fabric according to an embodiment of the present invention. It is a figure which shows the result of the heat retention test of the heat insulation textile by one Embodiment of this invention. 3 is an exploded schematic view of a thermal insulation fabric according to another embodiment of the present invention. 4 is an exploded schematic view of a thermal insulation fabric according to still another embodiment of the present invention.

  In order to make the description of the present disclosure more detailed and complete, an illustrative description of embodiments and specific examples of the present invention will be presented below. It is not the only form to implement and operate. The embodiments disclosed below can be combined or replaced with each other, if advantageous, without further description or explanation, and other embodiments can be added to one embodiment. However, embodiments of the present invention can be practiced without these predetermined details. In other instances, well-known structures and devices are shown in schematic form only in order to simplify the drawing.

  FIG. 1 is an exploded schematic view of a thermal insulation fabric according to an embodiment of the present invention. This heat insulating fabric includes a temperature control fabric layer 110 and a heat insulating layer 120. The temperature control fabric layer 110 has an outer surface 112 that is closer to the air and an inner surface 114 that is closer to the skin 140. The heat insulation layer 120 located on the outer side adjacent to the outer surface 112 of the temperature control fabric layer 110 can block heat generated by the temperature control fabric layer 110 from escaping to the air, thereby achieving a heat retaining effect.

In one embodiment, the heat insulating layer 120 may be a gas barrier layer, has an excellent barrier effect, and covers the outside of the temperature control fabric layer 110, so that the intrusion of the external cold air 126 and Intrusion of the water vapor 128 can be blocked. The material applied to the gas barrier layer can be, for example, a coated fabric or film. The fabric may be, for example, a woven fabric or a knitting fabric. This gas barrier layer has a gas permeability range of 75 cm ³ / cm ² . s, preferably 50 cm ³ / cm ² . s, more preferably 30 cm ³ / cm ² . is less than s.

The air permeability is measured by a method defined in CNS 12915 L3233-1991 6.27A. The steps and conditions of the measurement method will be briefly described as follows. First, a fabric having a constant area (for example, about 20 cm × 20 cm) is collected and left in a test port with a constant air flow (for example, a test port having an area of about 38 cm ² ) of an air permeability tester. Subsequently, the air flow is adjusted so that a constant pressure difference (for example, the pressure difference is 125 Pa) is maintained on both sides of the fabric, that is, the tilt barometer reading is maintained. The air permeability is an indication of a vertical barometer measured at this time.

  In another embodiment, the temperature control fabric layer 110 is a fabric layer having hygroscopic heat generation characteristics. The temperature control fabric layer 110 actively adsorbs the water vapor 142 from the surface of the skin 140 (moisture absorption process 116a), and releases the heat of condensation of the water vapor due to the phase change (heat dissipation process 116b). Can be given.

  The material of the temperature control fabric layer 110 is animal fiber, plant fiber, or synthetic fiber. The animal fibers can be, for example, wool, down or silk thread. The plant fiber may be, for example, cotton or hemp. The synthetic fiber may be, for example, a thermoplastic polyester elastomer (TPEE) fiber, a nylon (Nylon) fiber, an acrylate fiber, or a rayon fiber.

  After the temperature control fabric layer 110 has undergone a moisture content test, the temperature control fabric layer 110 has a moisture content range of 1% to 8% at a relative humidity of 90% and 40%. It has been found that only 2% to 8%, more preferably 4% to 8%, does not give a suitable temperature control effect. The calculation method of the moisture content difference is as follows. The moisture content value obtained in an atmosphere of 20 ° C. and a relative humidity of 40% is subtracted from the moisture content value obtained in an atmosphere of 20 ° C. and a relative humidity of 90%.

  FIG. 2 is a diagram showing the test results of the heat retention effect of the present embodiment. As a test method, a test method by Japan Spinning Inspection Association (BOKEN) is used. The steps and conditions of the Japanese BOKEN test method are briefly described as follows. First, a constant temperature and humidity machine is set to 20 ° C. and a relative humidity of 40%. Subsequently, after the sample fabric and the test atmosphere are stabilized, the relative humidity of the temperature and humidity chamber is increased to 90%. After the sample absorbs moisture and starts to dissipate, the sample temperature is increased to 1 for 15 minutes. Record every minute. The thermal insulation effect of the sample fabric is examined by observing the change tendency of the temperature. As for the sample in an absolutely dry state, the sample is placed in an oven at 105 ° C., and the sample is weighed by sampling every hour until the weight of the sample does not change any more. Confirm that

In FIG. 2, the comparative example 1 is a single layer fabric as a conventional heat insulation fabric comprised only of the temperature control fabric layer. Experimental Example 1 is a double woven fabric structure (a polyester fiber woven fabric having an air permeability of 40 cm ³ / cm ² .s) in which a heat insulating layer and a temperature control fabric layer are combined. Experimental Example 2 is a double woven fabric structure (a polyester fiber woven fabric having an air permeability of 20 cm ³ / cm ² .s) in which a heat insulating layer and a temperature control fabric layer are combined.

  FIG. 2 is a temperature curve diagram measured for 15 minutes, the ordinate is the temperature difference, and the abscissa is the time axis. Of the three, the highest achievable temperature of Comparative Example 1 is the lowest. This is because Comparative Example 1 does not have a heat insulating layer, and heat generated by the temperature control fabric layer cannot be shielded so as not to escape to the outside, so that the heat generated by the temperature control fabric layer increases with the external temperature. Because it balances quickly. Compared to Comparative Example 1, it is clear that the maximum temperature achievable in Experimental Example 1 and Experimental Example 2 is higher than the maximum temperature of Comparative Example 1, which means that the heat generated by the temperature control fabric layer is transferred to the heat insulating layer. Indicates that it is effectively blocked.

  In another embodiment, the heat insulating layer 120 may further include a fabric heat insulating layer. In general, the fabric heat insulating layer has an air storage function and achieves a continuous heat insulating effect due to the low thermal conductivity of air. This woven fabric thermal insulation layer has a thermal insulation ratio of more than 20%, preferably more than 30%, more preferably more than 40%, and only has a suitable thermal insulation effect.

The heat retention rate is measured by the method defined in JIS L 1096: 1990 6.28.1A. The steps and conditions of the test method will be briefly described as follows. In a constant temperature and humidity atmosphere, leave the fabric on a hot plate (36 ° C ± 0.5 ° C) at a constant temperature (36 ° C ± 0.5 ° C) for 2 hours, measure the escaped heat of the hot plate, and use the following formula to maintain the heat retention rate (%) Is calculated.
Thermal insulation rate (%) = (1-b / a) × 100%
a: The amount of heat that escapes from the hot plate measured when the hot plate is exposed.
b: Calorific value escaped from the hot plate measured when the hot plate was covered with the fabric to be measured.

  The material in the woven insulation layer may be natural fiber or synthetic fiber. The synthetic fiber material may be, for example, polyester, nylon or polypropylene. Natural fibers include animal fibers or plant fibers. The material of the animal fiber can be, for example, wool, down or silk thread. The plant fiber material may be, for example, cotton or hemp.

  FIG. 3 is an exploded schematic diagram showing a heat-insulating fabric according to another embodiment of the present invention. In this embodiment, the thermal insulation fabric may further comprise a dry fabric layer 130 located on the inner surface 114 of the temperature regulating fabric layer. The dry fabric layer 130 is in direct contact with the skin 140 and is separated from the skin 140 so as not to be in direct contact with the temperature-controlling fabric layer 110, so that the skin 140 and the fabric are dry and worn more comfortably by the user. Can be made.

  The material of the dry fabric layer 130 may be natural fibers or synthetic fibers, for example. The fabric of the dry fabric layer 130 must have a moisture content of 0.01% to 1% at 20 ° C. and a relative humidity of 65%. If the moisture content is low, the temperature control fabric layer 110 is the surface of the skin 140. After absorbing the water vapor 142, it is possible to avoid that the heat from the heat dissipation process 116b directly affects the skin.

  For specific embodiments of the temperature control fabric layer 110 and the heat insulation layer 120 of the heat insulation fabric, refer to the related description of FIG. Therefore, it will not be repeated.

  FIG. 4 is an exploded schematic view illustrating a heat insulating fabric according to another embodiment of the present invention. This heat insulating fabric includes the temperature control fabric layer 110, the heat insulating layer 120, and the dry fabric layer 130 as described above. The thermal insulation layer 120 is adjacent to the outer surface 112 of the temperature regulating fabric layer 110 and the dry fabric layer 130 is adjacent to the inner surface 114 of the temperature regulating fabric layer 110 and is in direct contact with the skin 140.

  The heat insulating layer 120 of this embodiment has a double structure composed of a gas barrier layer 122 and a fabric heat insulating layer 124. The fabric heat retaining layer 124 is located between the temperature control fabric layer 110 and the gas barrier layer 122. The outermost gas barrier layer 122 is a layer that comes into contact with air, and prevents intrusion of the external cold air 126 and intrusion of the water vapor 128 or blocks the internal heat 118 from escaping into the air. it can. In addition, the fabric insulation layer 124 has a function of storing air, and heat 118 generated by the temperature control fabric layer 110 can be stored in the fabric insulation layer 124 due to the low thermal conductivity of air. Due to the double heat insulating effect, the escape of the heat 118 generated by the temperature control fabric layer 110 can be more effectively reduced, and further a sustained heat retention can be achieved.

  For other specific embodiments of the fabric heat insulating layer 110, the heat insulating layer 120, and the drying layer 130, the related description of FIGS. 1 and 3 can be referred to. In addition, each layer described in the present invention can perform different functions by the same material and different weave or structure, for example, the modified polyester film can be applied to the barrier layer, Polyester fabrics can also be applied to temperature control layers or dry layers.

  Although the present invention has been disclosed in the present invention as described above, this is not intended to limit the present invention, and various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention. Can do. Therefore, the protection scope of the present invention is based on the content specified in the utility model registration request.

110: temperature control fabric layer 112: outer surface 114: inner surface 116a: moisture absorption process 116b: heat dissipation process 118: heat 120: heat insulation layer 122: gas barrier layer 124: fabric heat insulation layer 126: air 128, 142: water vapor 130: dry Fabric layer 140: skin

Claims (11)

at least,
A temperature control fabric layer in which the fiber material includes a hygroscopic exothermic material and the fabric has a moisture content difference of 1% to 8% at a relative humidity of 90% and 40%;
A heat insulating layer adjacent to an outer surface of the temperature-controlling fabric layer and blocking heat generated by the temperature-controlling fabric layer;
Insulated woven fabric.   The heat insulating fabric according to claim 1, wherein the fabric of the temperature control fabric layer has a moisture content difference of 2% to 8% at 90% and 40% relative humidity.   The thermal insulation fabric according to claim 2, wherein the fabric of the temperature control fabric layer has a moisture content difference of 4% to 8% at 90% and 40% relative humidity. The heat insulation layer has an air permeability of at least 75 cm ³ / cm ² . The thermal insulation fabric according to claim 1, comprising a gas barrier layer that is less than s. The heat insulation layer has at least an air permeability of 50 cm ³ / cm ² . The thermal insulation fabric according to claim 4, comprising a gas barrier layer that is less than s. The heat insulation layer has at least an air permeability of 30 cm ³ / cm ² . The thermal insulation fabric according to claim 5, comprising a gas barrier layer that is less than s.   The heat insulation fabric according to claim 4, wherein the gas barrier layer is a coated fabric layer or a film layer.   The heat insulation fabric according to claim 1, wherein the heat insulation layer further includes a fabric heat insulation layer having a heat insulation rate of more than 20%.   The heat insulation fabric according to claim 8, wherein the heat insulation layer further includes a fabric heat insulation layer having a heat insulation ratio of more than 30%.   The heat insulation fabric according to claim 9, wherein the heat insulation layer further includes a fabric heat insulation layer having a heat insulation ratio exceeding 40%.   The thermal insulation fabric according to claim 1, further comprising a dry fabric layer adjacent to the inner surface of the temperature-controlling fabric layer and having a moisture content of 0.01% to 1% at a relative humidity of 65%.

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