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Dustproof clothing

A dust-proof and dust-proof technology, applied in the field of dust-proof clothing, can solve problems such as the absence of dust-proof clothing

Inactive Publication Date: 2004-12-01
KURARAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in fact, there is no satisfactory dustproof clothing that meets the above needs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] 【Preparation composition ZN(OH) 2 -Ti 3 (PO 4 ) 4 -TiO 2 】

[0073] An aqueous solution (60 g) of titanium sulfate (concentration: 30 wt %) was added to 1 liter of distilled water, and the resulting solutions were mixed. To this mixed solution, an aqueous solution (about 98 g) of phosphoric acid (concentration: 15 wt %) was added dropwise, and a white precipitate was obtained by mixing. Further, 50.3g of zinc sulfate (ZnSO 4 ·7H 2 O), and stirred. An aqueous solution of sodium hydroxide (concentration: 15 wt %) was added dropwise to the obtained opaque aqueous solution, mixed to adjust the pH to 7.0, and a white precipitate mixture containing Zn(H)—Ti(IV) was obtained. In the product containing the precipitate mixture, titanium tetrachloride (37g) was added dropwise and stirred, then an aqueous solution of sodium hydroxide (concentration was 15wt%) was added dropwise, and the pH value was adjusted to 7.0 by mixing to obtain Titanium deposits. The resulting pre...

Embodiment 2

[0081] 2 / 3 twill weave, fabric weight 133g / m 2 The fabric (thickness: 0.23 mm at a pressure of 23.5 kPa) was prepared from the following materials, using the composite filaments having a sheath-core structure obtained in Example 1 and the continuous fibers made of conventional polyester Textured yarn (167 decitex, 48 filaments, fiber fineness of monofilament: 3.5 decitex, twist: 0T / m) is alternately used as weft yarn, and textured yarn (110 decitex) composed of continuous fibers of conventional polyester is used. , 48 filaments, the fiber fineness of the monofilament is: 2.3 decitex, twist: 100T / m) as the warp. Incidentally, the same conductive filaments having a sheath-core structure as in Example 1 were woven into the fabric at intervals of 1 cm. The fabric has a dust collection efficiency of 82.7% and an air permeability of 9.8 cm / s. Using this fabric, dustproof clothes were produced in the same manner as in Example 1, and similarly to Example 1, a test of wearing comfort...

Embodiment 3

[0083] Copper sulfate crystals (43.9 g) were dissolved in 1 liter of distilled water, and an aqueous solution of titanium sulfate (60 g) (concentration: 30 wt%) was added to the resulting aqueous solution. About 10 g of a 15 wt % phosphoric acid solution was added dropwise to the resulting mixture at room temperature and stirred to obtain a white precipitate. The solution (A solution) that will contain precipitate, and the aqueous solution (B solution) that contains sodium silicate of 471g are put into different beakers and stirred; The preparation method of described B solution comprises: Sodium silicate is diluted with distilled water To a concentration of 30 wt%, 15 wt% aqueous sodium hydroxide solution (30 ml) was added to the resulting diluted solution. Add solution A and solution B dropwise into a container with 500ml of distilled water, and stir, so that the pH value of the mixture is always maintained at about 7.0. The results obtained containing Cu(II)-Ti(IV)-SiO 2 ...

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Abstract

A dustproof clothing comprises a fabric, and at least part of the fabric comprises a dustproof fiber containing a photocatalyst and a dust-collecting agent. The dust-collecting agent may comprise a quadrivalent metal phosphate and a bivalent metal hydroxide. The photocatalyst may comprise an optical semiconductor (e.g., an oxide semiconductor such as titanium dioxide). In the dustproof fiber, the proportion of the photocatalyst may be about 0.1 to 25 parts by weight relative to 100 parts by weight of the dustproof fiber, and the proportion of the dust-collecting agent may be about 1 to 25 parts by weight relative to 100 parts by weight of the dustproof fiber. Since the dust collection efficiency of the fabric in the dustproof clothing is not less than 70% and the air permeability of the fabric is about 8 to 100 cm / second, the dustproof clothing is suited to a clothing for a clean room. Thus, the present invention provides a dustproof clothing having both a high dust collection efficiency and an air permeability concurrently.

Description

technical field [0001] The invention relates to a dust-proof clothing that can be used as work clothes (or work suits) in a clean room. It not only has good dust collection efficiency but also has high air permeability, which ensures wearing comfort. Background technique [0002] In many electronics fields, including the semiconductor field, absolute clean rooms are generally used to manufacture electronic devices (eg, semiconductors). Recently, the demand for a high degree of cleanliness in such absolutely clean rooms has been increasing. In response to this demand, along with the development of filters for air purification, dustproof work suits for use in absolutely clean rooms have also been improved in many ways. [0003] As for dust (or dust particles) generated by workers, the following three kinds of dust are generally known, [0004] (1) Clothes dust generated by the dustproof clothing itself, [0005] (2) infiltrating dust through dust-p...

Claims

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Application Information

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IPC IPC(8): A41D13/00A41D31/00D01F1/10D01F6/62D01F8/14
CPCA41D31/0011D01F1/10D01F8/14D01F6/62A41D31/04Y10T442/60Y10T442/605Y10T442/607Y10T442/63Y10T442/637Y10T442/638Y10T442/64Y10T442/641A41D13/00
Inventor 秋庭英治堀辉男
Owner KURARAY CO LTD
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