Stretchable cloth adhesive tape

• US 4,734,320 A
• Filed: 01/30/1987
• Issued: 03/29/1988
• Est. Priority Date: 04/24/1986
• Status: Expired due to Term

• Current Assignee: Nitto Electric Industrial Co., Ltd. (Nitto Denko Corporation)
• Original Assignee: Nitto Electric Industrial Co., Ltd. (Nitto Denko Corporation)
• Inventors: Tsukahara, Eiji, Doi, Hiroshi, Suzuki, Seishi, Matsumoto, Katsuo, Ohira, Osamu
• Primary Examiner(s): Lesmes, George F.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/008,724
• Time in Patent Office: 424 Days
• Field of Search: 128/155, 128/156, 428/231, 428/261, 428/343, 428/703, 156/160, 156/163
• US Class Current: 428/40.1
• CPC Class Codes: A61F 13/0273 Adhesive bandages for winding around limb, trunk or head, e.g. cohesive
• CPC Class Codes: A61F 13/06 specially adapted for feet or legs; Corn-pads; Corn-rings
• CPC Class Codes: A61F 2013/00102 oblong
• CPC Class Codes: A61F 2013/00119 elastic
• CPC Class Codes: A61F 2013/00123 with elastic indicator
• CPC Class Codes: A61F 2013/530014 being made in hard wood pulp
• CPC Class Codes: Y10T 428/14 Layer or component removable to expose adhesive

Abstract

A stretchable cloth adhesive tape useful for taping which comprises a tape support woven from warps and wefts and having stretchability in at least one direction and a pressure-sensitive adhesive layer formed on one surface of the support. The tape support is fixed in a state stretched at least 3% of its maximum elongation upon being stretched to a limit.

Claims

1. A stretchable cloth adhesive tape comprising a tape support woven from warps and wefts and having stretchability in one or two directions and a pressure-sensitive adhesive layer formed on one surface of the support, the tape support being fixed by the pressure-sensitive adhesive layer partly biting into the surface of the support in a state stretched at least 3% of said support'"'"'s maximum elongation upon being stretched to a limit.

2. The stretchable cloth adhesive tape as in claim 1, wherein the wefts are composite yarns composed of a stretchable core and covering fiber yarns wrapped around the core.

3. The stretchable cloth adhesive tape as in claim 2, wherein the core is colored.

4. The stretchable cloth adhesive tape as in claim 2, wherein the core has a size of 20 to 250 denier.

5. The stretchable cloth adhesive tape as in claim 2, wherein the core is composed of polyurethane rubber yarns.

6. The stretchable cloth adhesive tape as in claim 2, wherein the covering fiber yarns have a size of 100 to 500 denier.

7. The stretchable cloth adhesive tape as in claim 1, wherein the count of the warps is 15 to 50 per inch.

8. The stretchable cloth adhesive tape as in claim 1, wherein the wefts have a size of 100 to 500 denier.

9. The stretchable cloth adhesive tape as in claim 1, wherein the count of the wefts is 20 to 100 per inch.

10. The stretchable cloth adhesive tape as in claim 1, wherein the tape support is fixed in a state stretched 5 to 80% of its maximum elongation upon being stretched to the limit.

11. A stretchable cloth adhesive tape as in claim 2 wherein the stretchable core is composed of a synthetic rubber or a synthetic resin.

12. A stretchable cloth adhesive tape as in claim 11 wherein the synthetic rubber is selected from the group consisting of polyurethane rubber and chlorinated rubber, and wherein the synthetic resin is a mixture of polypropylene and ethylene/vinyl acetate copolymer.

13. A stretchable cloth adhesive tape as in claim 3 wherein the color of the core is different from the color of the covering fiber yarns.