JPH0520219Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention relates to a structure for improving the heat retention properties of blankets, especially so-called woven blankets in which the most common warp and weft are woven and a raised layer is formed on both sides with the weft. .

Conventional technology and issues There are various types of blankets depending on the type of fiber used and the type of knitting structure, but the heat retention properties of all of them are mainly due to the heat retention by the air layer medium held in the raised surface layer. It simply depended on power.

In recent years, the idea of increasing the use of heat using radiation methods has been attracting attention, with the aim of minimizing the energy loss caused by the medium when conduction and convection are used as methods of heat propagation when using heat. . Recently, many attempts have been made to utilize ceramics that emit far-infrared rays as materials useful for such radiation methods.

However, the use of far-infrared emitting materials has not yet been considered at all for blankets, which are primarily intended for heat retention, and this is even more so since the material requires softness and retention of texture as important characteristics. The reality is that the use of ceramics, which are inorganic particles, was recognized as completely inappropriate.

In other words, conventional bedding products, for example, futons (Japanese Utility Model Application Publication No. 691-217112, Japanese Utility Model Application Publication No. 1987-217112, Japanese Utility Model Application No. 217112, Japanese Utility Model Application Publication No. 691-217112, Various attempts have been made to provide far-infrared emitting ceramic layers on the inside or back surface of sheets (see Japanese Utility Model Application Publication No. 63-117351) and sheets (see Japanese Utility Model Application Publication No. 196264/1983).

However, for a woven fabric type blanket that has a raised layer on both sides, it is necessary to have good texture and feel on both sides, and it is also necessary to have a raised layer directly from the ground structure consisting of warp and warp yarns. Since the layer is formed by scraping, it is not possible to use a method of coating the fabric with ceramics, as in the case of coating ceramics on the fabric. In reality, blankets were considered unsuitable for attaching ceramics, and no such attempt was made.

This invention was made with the intention of breaking through the conventional technical common sense and making it possible to attach ceramics to blankets.
In other words, in order to further improve warmth during use and heat retention performance without having any adverse effect on the original surface characteristics that a blanket should have, such as good texture and texture, we have developed far-infrared radiation characteristics. It was created with the purpose of providing a blanket with

Means for Solving the Problems This invention is based on the premise that ceramics are attached to the part that constitutes the ground structure of the blanket, that is, the ground structure that supports the raised layer, and in particular the raised layer among the constituent threads of the ground structure. By providing a ceramic fine particle layer on the warp threads that are not directly involved in the formation of the weft, it is possible to easily apply ceramics to the warp threads by a coating process before weaving, and then weave the warp threads together with the weft threads. We have discovered that it is possible to form a base texture without any particular hindrance, and that it is also possible to form a raised layer after weaving without any particular hindrance. was completed.

Therefore, this invention is a blanket in which the ground texture is constructed by weaving the warp threads 2 and the weft threads 3, and a raised layer 4 is formed on both sides with the weft threads. The object of the present invention is to provide a blanket with excellent heat retention, characterized by being coated with far-infrared emitting ceramic fine powder.

Function The far-infrared emitting ceramic fine particles are coated on the warp threads in the fabric submerged under the nap layer of the blanket, without interfering with the feel or texture of the blanket itself. When in use, the far infrared rays emitted from the ceramic fine particles cause a self-heating effect in the target object that absorbs it without going through a medium, resulting in increased warmth and the effect of a blanket. Increases heat retention effect.

Embodiment The embodiment shown in FIGS. 1 and 2 shows the application of the present invention to a woven blanket. As shown in FIG. 1, the blanket 1 has a ground weave having warp threads 2 and weft threads 3 in a plain, twill, double weave, etc., and a raised layer 4 with weft threads 3. was formed,
In particular, the warp threads 2 are coated with far-infrared emitting ceramic particles 5. This coating can be performed by employing known means, and most commonly, the warp threads 2 are coated in a dispersion liquid in which fine ceramic particles are dispersed in a binder liquid such as acrylic, vinyl acetate, or silicone. A dipping method, a roll coater method, a jet spray coating method, etc. are preferably employed. For example, raw materials such as silicon, alumina, silica, etc. can be used as the ceramic fine particles 5.
One type or a combination of two or more types of powders are used after firing at around 1200 to 1600°C and pulverizing them into fine powder with a particle size of about 1 to 10 μm.

As a specific example, the warp thread 2 is cotton thread number 20 double thread, and the weft thread is 3.
Assuming that a thick woolen yarn No. 3 single yarn is used, and the warp yarn 2 is coated with far-infrared emitting ceramic fine particles by roll coating, jet spraying, or dipping treatment.
Implemented product A is a blanket produced by woven with a weft double weft with a 1/3 torn diagonal pattern, washed and raised according to the usual method, and the above implemented product A except that it is not coated with ceramic fine particles. A blanket equivalent to a conventional product constructed in the same manner as above was used as a control product B, and its far-infrared radiation characteristics were measured, and the results were as shown in FIG. In this measurement, in an atmosphere of 23℃, the surface temperature of the black body is 100℃, and the surface temperature of the blanket is 100℃.
The temperature was set at 70℃. From the results shown in FIG. 3, it can be confirmed that the product according to the present invention has relatively excellent heat retention properties.

Effects of the invention As mentioned above, the blanket according to this invention is made by coating ceramic fine particles only on the warp of the warp and weft that make up the ground texture. The ceramic fine particles mentioned above do not affect the raised layers on both the front and back surfaces that are formed with the blanket, and the various properties inherent in the blanket, such as texture, good texture, and heat retention, are not impaired in any way. Far-infrared radiation from the far-infrared-emitting ceramic fine particles promotes warmth during use, and the product can have even more excellent heat-retaining performance than conventional products.

Moreover, by coating the warp threads in the ground weave with ceramic fine particles as described above, it is possible to easily apply the coating treatment to the warp threads before weaving the ground weave. In addition, by using warp yarns coated with ceramic fine particles, there is no particular problem in weaving with weft yarns and processing operations such as washing and raising after weaving, and the required process control can be carried out. It can be done easily.

Therefore, it is possible to manufacture and provide a blanket with excellent heat retention properties using far-infrared emitting ceramics, which has been considered difficult to manufacture, without incurring a particularly significant increase in cost.

[Brief explanation of drawings]

Fig. 1 is a schematic cross-sectional view showing an embodiment of the present invention for a woven blanket, Fig. 2 is a partially exploded perspective view of the same, and Fig. 3 shows the measurement results of far-infrared radiation characteristics of the blanket according to the embodiment. This is a graph shown in comparison with a blanket. 1... Woven blanket, 2... Warp, 3... Weft, 5...
...Far-infrared emitting ceramic particles.

Claims (1)

[Scope of claim for utility model registration] The ground structure is constructed by weaving warp 2 and weft 3,
A blanket with raised layers 4 formed on both sides of the weft yarns, characterized in that only the warp yarns 2 are coated with far-infrared emitting ceramic fine powder, which has excellent heat retention properties. blanket.