JPS60249994A - Padding structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a stuffed structure. In detail, the present invention relates to a stuffed structure that utilizes fibers containing metal fine powder with low emissivity to improve heat retention.

The stuffed structure of the present invention can be used for mattresses and comforters.

Kotatsu racks can be used in various fields such as futon liners, clothing, and insulation materials. It is especially suitable for use in the bedding field because it has excellent heat retention durability.

[Prior art]

Various methods have been attempted to improve the heat retention effect of metal bedding materials, vehicle interior materials, etc., but most of them have mainly utilized metal vapor deposition technology. For example, [metal vapor deposition is carried out by stacking a thin web layer with metal vapor deposited on the surface and needle bunching the two to make some of the fibers constituting the thin web layer protrude onto the surface of the metal vapor deposited sheet to integrate the two. Kotatsu futon-1 (Utility Model Publication No. 58-10916) is made by stacking a non-woven fabric with a cotton layer so that the metal-deposited surface is the outer surface, and covering both with a side fabric. In order to solve the drawback that the metal is easy to peel off, we applied a copolymer mainly containing isophthalic acid or its derivatives, neopentyl dalycol, and polyalkylene glycol. A method for producing an aluminum-deposited polyester fabric with excellent durability, characterized in that a composition having a softening point of 60°C or more and less than 130°C is attached to the fabric in an amount of 17% by weight or more and less than 3% by weight. ” (Japanese Patent Publication No. 58-1368
No. 91) has been disclosed.

All of these techniques are aimed at preventing heat from escaping to the outside as much as possible or cutting off heat from the outside by using a metal vapor deposited body.

[Object of the Invention J] However, the above-mentioned conventional technology using metal vapor deposition technology has the following drawbacks.

(11 Metal evaporation processing is a process in which metal evaporation is performed in a vacuum to a thickness greater than that which reflects heat rays, so the manufacturing process must be discontinuous and take a long time, making continuous production impossible and reducing productivity. It is difficult to increase

(2) Metal evaporation is simply depositing a metal onto an object to be evaporated, so for example the above-mentioned Utility Model Publication No.
Even if the device is constructed as described in the No. 0916 publication, it is difficult to avoid the fact that the vapor-deposited metal gradually peels off due to abrasion caused by rubbing or during repeated washing or massaging. In other words, it has the disadvantage of low durability.

(3) When the surface of vapor-deposited metal is coated with resin to increase durability as in the invention described in JP-A-58-136891, the layer composed of vapor-deposited metal and surface coating resin is This has the drawback of giving the insulation material a stiff feel and impairing its flexibility. Also, as mentioned above, repeated washing,
Vapor-deposited metal tends to peel off during rubbing and washing.

The inventors of the present invention have conducted studies to solve these drawbacks in the prior art, and have arrived at the present invention.

[Configuration J of the invention That is, the present invention has the following features: (1) The radiation height is 0.39 or less, and the average particle size is 1 to 100μ.
A stuffed cotton structure made of a web containing at least 5 layers of synthetic fiber containing 1 to 30 weight % of metal-based fine powder of m, covered with a fabric.

(2) The wire according to claim 1, wherein the metal-based fine powder is one or more types of 7'C selected from the group consisting of 7zl minium, copper, nickel, brass, iron, titanium, and oxides thereof. Structure.

(3) The stuffing structure according to claims 1 and 2, wherein the metal-based fine powder is flaky.

The metal-based fine powder in the present invention has a radiation state (value described in Chemical Engineering Society of Japan, Chemical Engineering Handbook (revised 4th edition), item 20) of 0.3 or less. If it exceeds 0.3, absorption and radiation of heat rays will increase and the heat retention effect will decrease. If the radiant portion is 0.3 or less, the radiation efficiency of the heat rays is low, making it difficult for the heat rays to absorb and radiate heat, thereby improving heat retention.

The metal-based fine powder may be any metal-based substance with a radiation part of 0.3 or less, but aluminum, copper, nickel, yellow metal, and iron are used because they are easily available and easy to handle.

It is preferable to use one or more metal-based fine powders selected from the group consisting of tungsten, tano, and their oxides. In addition, aluminum is particularly preferable from the viewpoint of lightness. The metal-based fine powder may be a metal fine powder, a metal oxide fine powder, or a mixture of both. The shape of the metal-based fine powder may be any shape, but from the viewpoint of the heat ray shielding effect, non-spherical shapes such as linear, rod-shaped, flaky shapes, etc. are preferable, and more preferably flaky shapes, elongated flakes, scales, cloud shapes, etc. Particularly preferred is the shape of °C.

Although the average particle diameter of the metal-based fine powder depends on the single fiber fineness of the fibers used, it is preferably 1 to 100 trm or less.

When using fibers made of single yarns with a particularly fine denier for use as a stuffing material, fibers with a diameter of 20 μm or less are used. If it exceeds 100 μm, process troubles such as fluffing and yarn breakage are likely to occur during the fiber forming process, and if it exceeds 1 μm, the heat ray reflection effect will be significantly impaired.

The amount of groups contained in the metal-based fine powder per # of fibers is preferably in the range of 1 to 30 weight ratios.

If it is less than 1% by weight, heat retention is insufficient.

When the weight ratio exceeds 30, the fiber forming property decreases, and the physical properties of the obtained fibers become impractical.

The synthetic fiber containing the metal-based fine powder may be a rutted pattern that can be mixed with a high molecular weight polymer before fiber formation. Examples of fibers that can be seen with fine metal powder in a molten state before spinning include polyester fibers, polyamide fibers, and polypropylene fibers.

Examples of bondable fibers that can be mixed with fine metal powder in a solution (dope) state before yarn spinning include cellulose fibers, acetate fibers, wholly aromatic-bolyamide fibers, and polyacrynitrile fibers. It is preferable that the metal-based fine powder contained in the fiber exists only in the periphery of the fiber when viewed from the cross section of the fiber.

For example, it has a two-layer structure with a core-sheath structure, and the metal-based fine powder exists only in the sheath part.

With such a two-layer structure, the amount of metal-based fine powder used can be reduced, and the fiber properties are maintained by the core, so #I# due to the inclusion of metal-based fine powder.
# Be able to keep the deterioration of eggs, such as strength deterioration and young strength deterioration, to a slight degree. Of course, even if it is contained in the entire cross-section of the fiber, the heat-retaining effect can be achieved, but a two-layer structure is preferable in terms of maintaining fiber performance and achieving a high heat-retaining effect. Conventionally known methods may be used to produce the two-layered yarn.

The fibers constituting the web other than the fibers containing ≠ camphorki metal-based fine powder are not particularly limited. Natural fiber, semi-synthetic fiber.

Synthetic leather fibers, inorganic fibers, etc. can be selected as appropriate depending on the purpose.

In order to obtain a stuffed structure with high heat retention durability using fibers containing fine metal powder, it is necessary to mix the #fibers in an amount of at least 5% by weight based on the weight of the web. If the weight ratio is less than 5, a sufficient heat retention effect cannot be obtained. The mixing method may be any method such as cotton blending, lamination of webs, or lamination of sheet materials.

The web used in the present invention may be a web consisting of short sea urchins or long fibers. To obtain a stuffed structure from such a web, the web may be used as it is, or the web may be subjected to a process such as double knotting or quilting. After being integrated by a method, it is covered with a fabric to form a stuffed structure.

The fabric used for the stuffed structure of the present invention is a nonwoven fabric.

It may be made of silk cloth, woven cloth, etc.

〔Effect of the invention〕

As a result of configuring the present invention as described above in detail, the present invention has the following effects.

(11) Unlike conventional nonwoven fabrics treated with metal vapor deposition, since metals are contained within the fibers themselves, it has become possible to produce them in the same process as ordinary stuffed structures.

(2) Unlike conventional metal-deposited nonwoven fabrics, the fibers themselves contain metal, so the heat retention effect is permanently constant and there are no durability problems due to abrasion.

(3) Unlike conventional metal-deposited nonwoven fabrics, the fabrics contain metal within the fibers themselves, so they are practically no different from ordinary padded structures in terms of compression properties, feel, handling, etc.

(4) Since the fiber containing fine metal powder has a high heat retention effect, the thickness of the nonwoven fabric can be reduced. Therefore, it is possible to create a product that is lighter than conventional products, has good drapability, and is highly storable.

〔Example〕

EXAMPLES The present invention will be specifically explained in Examples below, but the present invention is not limited to the Examples below.

Examples 1 to 10 and Comparative Examples 1 to 7 Polyethylene terephthalate 10 obtained by conventional methods
In part 0, predetermined amounts of aluminum, copper, nickel, brass, titanium, iron, and fine metal powders of aluminum and nickel oxidized at 600 ° C. are adjusted to the predetermined average particle size as shown in Table 1. Mix each and use a melt extruder for 285
The mixture was melt-kneaded at 0.degree. C., discharged using a nozzle having a large number of circular discharge ports, and melt-spun according to a conventional method to obtain a filamentary fiber bundle. These spun yarns were doubled, drawn, heat set, pressed and crimped to obtain heat set fibers. The fiber diameters were as shown in Table 1.

A web was prepared using a carding machine by mixing either the short fibers alone or the short fibers (round cross-section polyenalene terephthalate with t #1 degree 6 oL6 edge fiber length 51 mm) and the prescribed amount shown in Table 1. The obtained web was covered and sewn with a plain woven fabric having a basis weight of 120.9/m'' and made of a blended spun yarn of cotton and polyethylene terephthalate short fibers to obtain a stuffed structure.

Table 1 shows the heat retention properties of the resulting stuffed structure. A stuffed cotton structure containing metal-based fine powder with a radioactivity of 0.3 or less may contain metal-based fine powder, or may not contain metal-based fine powder, but even if it contains metal-based fine powder, the radioactivity is 0.3. It exhibits extremely high heat retention compared to those exceeding . In addition, the drapability of the stuffed structure containing fine metal powder is as good as that of a structure that does not contain fine metal powder, and therefore, the feeling of wearing is good.

There were no particular problems with the feel, etc. Further, the metal-based fine powder did not fall off during washing, and therefore the heat retention property did not deteriorate.

If the amount of mixed metal-based fine powder is less than 1 layer, the effect of improving heat retention is insufficient. In addition, if the amount of metal fine powder mixed in exceeds 30% by weight or if the average particle size of the metal fine powder exceeds 100 μm, fuzz and yarn breakage occur frequently during yarn spinning, making stable yarn spinning difficult. could not. In yarns made by blending fibers mixed with fine metal powders with a radioactivity of 0.3 or less and fibers with and without fine metal powders, high heat retention is achieved when 5 weight 115 fibers containing fine metal powders are mixed. I was able to get sex. In addition, when the average particle size of the metal-based fine powder was less than 1 μm, the enhancement of the metal-based fine powder was poor, and the heat retention of the stuffed cotton weft kasted structure was also not high.

Procedural amendment May 2, 1985 Commissioner of the Japan Patent Office 1, Indication of the case, Patent Application No. 1983-103686 2, Name of the invention: Stuffed structure 3, Person making the amendment Relationship to the case Patent applicant: Higashi, Osaka City 1-11 Minamihonmachi, Ward (300) Teijin Limited Representative Sa Okamoto Part 5 Subject of amendment (1) Statement on page 7, line 10 of the specification: "If it exceeds 1 μm..." Correct it to "1μm at rice temperature...".

that's all

Claims (1)

[Scope of Claims] 1) A web containing at least 5 weights of synthetic fibers containing 1 to 30 weights of fine metal powder with a radioactivity of 0.3 or less and an average particle size of 1 to 100μ is covered with a fabric. A stuffed structure characterized by: 2) The stuffed structure according to claim 11, wherein the metal-based fine powder is one or more selected from the group consisting of aluminum, copper, nickel, brass, iron, titanium, and oxides thereof. 3) Claim No. 1 in which the metal-based fine powder is in the form of flakes
) or (2).