Wadding

Patent metadata

Field	Value
Publication number	US-2017191196-A1
Application number	US-201515308691-A
Country	US
Kind code	A1
Filing date	May 8, 2015
Priority date	May 8, 2014
Publication date	Jul 6, 2017
Grant date	—

Abstract

The present invention relates to wadding in which short fibers (A) having a single fiber fineness (a) of 0.001-1.0 dtex make up 5-90 mass % of the total mass of the wadding. Measured in accordance with JIS L 1096 Warmth Retention Method A (Constant-Temperature Method):2010, a 89% or higher warmth retention ratio is obtained in test items made by stuffing 100 g of the wadding substantially evenly into a pouch-shaped cover produced by layering two pieces of 45 cm-length 100% cotton fabric squares and thereafter sewing shut the opening of the pouch-shaped cover. By means of the present invention, it is possible to provide wadding which has excellent softness and bulkiness and which is ideal for use in down jackets, duvets or other bedding.

First claim

1 . A wadding, comprising:
short fibers (A) with a single fiber fineness (a) of 0.001 dtex˜1.0 dtex at 5˜90 mass % of the total mass of the wadding, wherein a heat-retention rate is 89% or higher, which is determined in accordance with JIS L1096:2010, Method A: measuring heat-retention rate (constant temperature method) for testing a sample piece prepared by substantially homogeneously stuffing 100 grams of the wadding into a pouch-shaped cover formed with two sheets of a 45 cm×45 cm square 100% cotton fabric and then by seaming the opening of the cover.

2 . The wadding according to claim 1 , wherein the bulkiness is 180 mm or greater.

3 . The wadding according to claim 1 , wherein the heat-retention rate is 93% or higher.

4 . The wadding according to claim 1 , further comprising short fibers (B) with a single fiber fineness (b) of 0.8 dtex˜20 dtex at 10˜95 mass % of the total mass of the wadding, wherein the single fiber fineness (a) of short fibers (A) and the single fiber fineness (b) of short fibers (B) satisfy a relationship of (b)≧1.5(a).

5 . The wadding according to claim 4 , wherein the single fiber fineness (b) of short fibers (B) is 1.3˜2.8 dtex.

6 . The wadding according to claim 1 , wherein the number of neps existing in 1 gram of the wadding is 30 or greater.

7 . The wadding according to claim 1 , wherein the single fiber fineness (a) of short fibers (A) is at least 0.001 dtex but less than 0.4 dtex.

8 . The wadding according to claim 1 , wherein the single fiber fineness (a) of short fibers (A) is at least 0.4 dtex but no greater than 1.0 dtex.

9 . The wadding according to claim 1 , wherein the length of short fibers (A) is 2060 mm, and the length of short fibers (B) is 20˜60 mm.

10 . The wadding according to claim 1 , wherein polysiloxane is adhered to short fibers (A) at 0.1˜15.0 mass % of the total mass of the short fibers (A).

11 . The wadding according to claim 1 , wherein short fibers (A) are acrylic fibers.

12 . The wadding according to claim 1 , further comprising heat-adhesive short fibers at 5˜10 mass % of the total mass of the wadding, wherein at least some of the heat-adhesive short fibers are adhered to short fibers (A).

Assignees

• Mitsubishi Rayon Co

Inventors

• NAKANISHI Shima
• Onohara Yukio
• Inagaki Tatsuhiko
• Kobayashi Hideaki

Classifications

• D10B2505/08

  Upholstery, mattresses · CPC title

• D06M15/643 Primary

  containing silicon in the main chain · CPC title

• B68G1/00

  Loose filling materials for upholstery · CPC title

• D04H1/02 Primary

  Cotton wool; Wadding · CPC title

• D04H1/43

  Acrylonitrile series · CPC title