Heat shielding sheet for tents

Abstract

To provide a heat shielding sheet for tents which suppresses a rise in temperature inside the tent on fine weather. [Solution] A heat shielding sheet S for tents has a base fabric 1 whose warp and weft are polyester yarns, with aluminum yarn woven in one direction, on the surface of which a water-repellent layer 2 is formed, and a polyurethane layer 3 on the back side.

Description

[Technical field]

[0001] This invention relates to a heat shielding sheet for tents that prevents the temperature rise inside a tent caused by strong sunlight, the diffuse reflection of light and heat, and the diffuse reflection of light and heat caused by radiation, thereby improving the living environment. [Background technology]

[0002] Conventionally, tents have been used outdoors mainly as shade on sunny days. However, even if they can avoid direct sunlight on sunny days, the temperature inside the tent can still rise and become unbearable.

[0003] Therefore, the applicant of the present application proposed a heat shielding sheet for tents in which a Teflon-coated layer is formed on the surface of a base fabric woven with aluminum yarn as the warp and polyester yarn as the weft, and a black polyurethane-coated layer is formed on the back side (Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Registered Utility Model Publication No. 3246721 Summary of the Invention [Problem to be solved by the invention]

[0005] The above proposal was effective in blocking heat and light, preventing the temperature inside the tent from rising due to strong sunlight, as well as the diffuse reflection of light and heat due to radiation.

[0006] However, aluminum yarn has low tear and tensile strength, and one-way polyester yarn alone may not be strong enough to withstand wind, etc. The purpose of this invention is to provide a heat shielding sheet for tents that improves strength and improves living conditions. [Means for solving the problem]

[0007] In order to solve the above problem, the heat shielding sheet for tents of the present invention is characterized in that the warp and weft are polyester yarns, aluminum yarn is woven in one direction, a water repellent layer is formed on the surface of the base fabric, and a polyurethane layer is formed on the back side (Claim 1). Note that the disclosure of the warp and weft and the one direction is a relative expression and does not have a specific meaning.

[0008] In the heat shielding sheet for tents of the present invention having the above-mentioned configuration, both the warp and weft are made of polyester yarn, which improves the strength of the base fabric containing aluminum yarn, and the surface obtains heat shielding, thermal insulation, light shielding, UV shielding and stain resistance due to the action of the base fabric and the water-repellent layer.

[0009] In addition, the polyurethane processed layer on the back side prevents diffuse reflection of light and heat, and reduces glare by preventing diffuse reflection of light and heat caused by radiation. As a result, the heat shielding sheet of this invention prevents the temperature rise inside the tent by the action of the base fabric and both sides, improving the living environment.

[0010] In one embodiment of the present invention, the polyurethane layer on the back surface is black (Claim 2). According to this embodiment, diffuse reflection of light and heat caused by radiation is prevented, and glare inside the tent is reduced.

[0011] In one embodiment of the present invention, the polyurethane layer on the back side contains a fire retardant (claim 3). According to this embodiment, the fire retardant improves the fire retardant effect of the entire sheet. Effect of the Invention

[0012] According to this invention, it is possible to provide a heat-shielding sheet for tents that has improved strength and can prevent the temperature inside the tent from rising and the diffuse reflection of light and heat caused by strong sunlight, and also prevents the diffuse reflection of light and heat caused by radiant heat. [Brief description of the drawings]

[0013] [Figure 1]1 is a conceptual diagram of a heat shielding sheet for tents according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] An embodiment of the present invention will be described below with reference to the drawings.

[0015] The heat shield sheet S for tents of this invention is made of a base fabric 1 in which the warp and weft are polyester yarns and aluminum yarn is woven in one direction. Here, warp and weft are relative expressions, and one direction means either the warp or the weft.

[0016] In this invention, a water-repellent layer 2 is formed on the surface of the base fabric 1 that is exposed to direct sunlight (hereinafter referred to as the "surface"), for example, by applying a Teflon treatment.

[0017] Furthermore, a polyurethane-processed layer 3 is formed on the inner surface (hereinafter referred to as the "back surface") of the base fabric 1. Preferably, the polyurethane-processed layer 3 is formed in black color.

[0018] The water-repellent layer 2 and the polyurethane layer 3 can be formed by adding a coating agent to Teflon (registered trademark) and polyurethane, adjusting the thickness according to the intended use, applying them to the base fabric 1, and then integrating them with the base fabric 1 by heat treatment.

[0019] Furthermore, in the present invention, the polyurethane processing layer 3 on the back side is preferably a layer containing a flame retardant, and the flame retardant is preferably antimony.

[0020] The heat shielding sheet for tents having the above-mentioned configuration is strong enough to withstand wind, and its surface is silvery-white in color, so it exhibits heat shielding, thermal insulation, light blocking and ultraviolet ray blocking properties, and the water-repellent layer makes it stain-resistant.

[0021] On the other hand, the reverse side prevents diffuse reflection of light and heat, and also prevents the diffuse reflection of said light and heat. Therefore, the heat shielding sheet for tents of this invention works on both sides to prevent the temperature rise inside the tent and maintain a good living environment. [Explanation of symbols]

[0022] 1 Base fabric 2 Water-repellent layer 3 Polyurethane processing layer

Claims

1. This heat shield sheet for tents is characterized in that the warp and weft are polyester yarns, a water-repellent layer is formed on the surface of a base fabric in which aluminum yarn is woven in one direction, and a polyurethane layer is formed on the back surface.

2. 2. A heat shielding sheet for tents according to claim 1, characterized in that the polyurethane-processed layer on the back side is black in color.

3. The heat shield sheet for tents according to claims 1 and 2, characterized in that the polyurethane processing layer contains a flame retardant.

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