Textured gloves

Patent metadata

Field	Value
Publication number	US-10058137-B2
Application number	US-201514880718-A
Country	US
Kind code	B2
Filing date	Oct 12, 2015
Priority date	Oct 14, 2014
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

Provided among other things is a glove formed by latex dipping having one or more textured finger tips wherein: the texture at the finger tips results from forming the glove on a former having the following properties:
(micrometer) Ra Av. roughness about 7-14 Rsm Mean width of roughness about 500-720 Rpc Peak count about 15-20
the glove being non-chlorinated, wherein the glove is a (i) single dip nitrile glove or (ii) a dipped glove with a textured layer formed of polymer latex, and comprising a multivalent metal ion salt of an organic acid with log P of about 4 to about 15.

First claim

What is claimed is:

1. A method of forming a glove comprising:
coating a glove former with coagulant;
applying a coagulable elastomer formulation to the coagulant coated former so that the former is coated with coagulated elastomer; and
curing the elastomer coating, wherein a grip-defining portion of the former has the following properties:

(micrometer)

Ra
Av. roughness
about 7-14

Rsm
Mean width of roughness
about 500-720

Rpc
Peak count
about 15-20;

and
forming a the glove with a grip portion corresponding to the grip-defining portion of the former, with the glove thereby having texture molded by the grip-defining portion of the former,
wherein the glove formed is a (i) single dip nitrile glove or (ii) a dipped glove with a so textured layer formed of natural rubber latex or synthetic rubber latex, and comprising a multivalent metal ion salt of an organic acid, the organic acid with log P of about 4 to about 15.

2. The method of claim 1 , wherein the former has one or more of the following properties:

(micrometer)

Rz
Mean roughness depth
about 30-50

Rmax
Largest roughness depth
about 40-70

Rp
Height of the highest peak
about 8-22

Rv
Depth of deepest valley
about 16-35.

3. The method of claim 2 , wherein the former has one or more of the following properties:

(micrometer)

Ra
Av. roughness
about 8-12

Rsm
Mean width of roughness
about 610-700

Rpc
Peak count
about 16-19.

4. The method of claim 3 , wherein the former has one or more of the following properties:

(micrometer)

Rz
Mean roughness depth
about 30-45

Rmax
Largest roughness depth
about 40-65

Rp
Height of the highest peak
about 10-20

Rv
Depth of deepest valley
about 18-30.

5. The method of claim 2 , wherein the coagulant coating is conducted with a composition comprising a multivalent metal ion salt of an organic acid, the organic acid with log P of about 4 to about 15.

6. The method of claim 1 , wherein the coagulant coating is conducted with a composition comprising a multivalent metal ion salt of an organic acid, the organic acid with log P of about 4 to about 15.

7. The method of claim 1 , wherein the organic acid is a C14 to C30 fatty acid.

8. The method of claim 1 , wherein the organic acid is a C16 to C20 fatty acid.

9. The method of claim 6 , wherein the multivalent metal ion salt comprises about 5 to about 50% by wt of coagulant compounds in the coagulant composition.

10. The method of claim 1 , wherein the glove formed is a single dip nitrile glove.

11. The method of claim 1 , wherein the glove formed is a dipped glove with a so textured layer formed of natural rubber latex or synthetic rubber latex, and comprising a multivalent metal ion salt of an organic acid, the organic acid with log P of about 4 to about 15.

12. The method of claim 4 , wherein the glove formed is a single dip nitrile glove.

13. The method of claim 4 , wherein the glove formed is a dipped glove with a so textured layer formed of natural rubber latex or synthetic rubber latex, and comprising a multivalent metal ion salt of an organic acid, the organic acid with log P of about 4 to about 15.

Assignees

• Ansell Ltd

Inventors

• Megat Abdul Aziz Putri Faridatul Akmar Binti
• Chin Mei Yee
• Zawawi Mohd Fairuz Bin Mohamad
• Rastam Norazilayati Binti

Classifications

• A41D19/0058

  Three-dimensional gloves · CPC title

• B29C41/40

  Cores · CPC title

• A41D19/01547 Primary

  with grip improving means · CPC title

• B29C33/42

  characterised by the shape of the moulding surface, e.g. ribs or grooves · CPC title

• A41D2400/80

  Friction or grip reinforcement · CPC title