Facial blotter with improved oil absorbency

• US 20090151748A1
• Filed: 06/30/2008
• Published: 06/18/2009
• Est. Priority Date: 12/13/2007
• Status: Abandoned Application

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Ridenhour, Aneshia D.
• Application Number:
  US12/215,946
• Publication Number:
  US 20090151748A1
• Time in Patent Office: Days
• US Class Current: 134/6
• CPC Class Codes: A61K 2800/262 Transparent; Translucent
• CPC Class Codes: A61K 2800/45 Colour indicators, e.g. pH- or Redox indicators
• CPC Class Codes: A61K 8/0208 Tissues; Wipes; Patches
• CPC Class Codes: A61Q 19/008 Preparations for oily skin
• CPC Class Codes: B08B 7/00 Cleaning by methods not provided for in a single other subclass or a single group in this subclass
• CPC Class Codes: B32B 2250/02 2 layers
• CPC Class Codes: B32B 2250/20 All layers being fibrous or filamentary
• CPC Class Codes: B32B 2262/02 Synthetic macromolecular fibres
• CPC Class Codes: B32B 2307/4026 within the layer by addition of a colorant, e.g. pigments, dyes
• CPC Class Codes: B32B 2307/41 Opaque
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2307/414 Translucent
• CPC Class Codes: B32B 2307/726 Permeability to liquids, absorption
• CPC Class Codes: B32B 2555/00 Personal care
• CPC Class Codes: B32B 27/20 using fillers, pigments, thixotroping agents
• CPC Class Codes: B32B 5/022 Non-woven fabric
• CPC Class Codes: B32B 5/26 another layer next to it also being fibrous or filamentary relative arrangement of fibres or filaments of different layers B32B5/12
• CPC Class Codes: B32B 7/023 Optical properties
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties

Abstract

A laminated oil absorbing wipe comprises a non-pigmented thermoplastic nonwoven substrate layer and a pigmented thermoplastic nonwoven substrate layer where the wipe has a bulk of between 0.2 mm and 1.0 mm, where at least a portion of the non-pigmented layer is configured to undergo a change in opacity upon the absorption of a bodily oil so that the portion is at least partially translucent or transparent to light and the color of the pigmented layer becomes visible through the partially translucent or transparent portion, and where the wipe has an oil absorption capacity of at least about 1 g/g as measured by the Oil Absorbency Test.

Claims

1. A laminated oil absorbing wipe comprising a non-pigmented thermoplastic nonwoven substrate layer (non-pigmented layer) and a pigmented thermoplastic nonwoven substrate layer (pigmented layer) wherein the wipe has a bulk of between 0.2 mm and 1.0 mm, wherein at least a portion of the non-pigmented layer is configured to undergo a change in opacity upon the absorption of a bodily oil so that the portion is at least partially translucent or transparent to light and the color of the pigmented layer becomes visible through the partially translucent or transparent portion, and wherein the wipe has an oil absorption capacity of at least about 1 g/g as measured by the Oil Absorbency Test.

2. The wipe of claim 1 wherein the pigmented layer is a different color than the non-pigmented layer.

3. The wipe of claim 1 wherein at least the non-pigmented layer is embossed.

4. The wipe of claim 1 wherein the non-pigmented layer and the pigmented layer is selected from spunlace, meltblown or coform.

5. The wipe of claim 1 wherein the non-pigmented layer exhibits a decrease in opacity of at least about 5% upon exposure to about 6 mg/cm² human oil, as measured by the Opacity Test.

6. The wipe of claim 1 having a vertical wicking capacity of at least about 0.6 g/cc as measured by the Vertical Wicking Capacity Test.

7. The wipe of claim 1 having a vertical wicking distance rate of at least about 6 mm in one minute, as measured by the Vertical Wicking Distance Test.

8. The wipe of claim 1 having a vertical wicking capacity of at least about 0.12 mm/sec as measured by the Vertical Wicking Distance Test.

9. The wipe of claim 1 wherein neither the non-pigmented layer nor the pigmented layer is a polymeric film or film-like material.

10. A method of absorbing oil and/or sebum from skin comprising:

a) providing a non-pigmented thermoplastic nonwoven substrate layer (non-pigmented layer) suitable for applying to skin;

b) providing a pigmented thermoplastic nonwoven substrate layer (pigmented layer);

c) laminating the non-pigmented layer onto the pigmented layer to form a laminated wipe having a pigmented side and a non-pigmented side;

d) applying the non-pigmented side of the laminated wipe to human skin; and

e) wiping oil and/or sebum from the skin;

wherein the laminate has a bulk between about 0.2 mm and 1.0 mm; and

wherein the wipe has an oil absorption capacity of at least about 1 g/g as measured by the Oil Absorbency Test.

11. The method of claim 10 wherein the non-pigmented layer of the laminated wipe exhibits a decrease in opacity of at least about 5% upon exposure to about 6 mg/cm² human oil, as measured by the Opacity Test to provide a visual cue.

12. The method of claim 11 further comprising the step of viewing the visual cue.

13. The method of claim 10 further comprising the step of embossing the non-pigmented layer.

14. The method of claim 10 further comprising the step of heat embossing the laminated wipe.

15. The method of claim 10 wherein the wherein the non-pigmented layer and the pigmented layer is selected from spunlace, meltblown or coform.

16. The method of claim 10 wherein the laminated wipe has a vertical wicking capacity of at least about 0.6 g/cc as measured by the Vertical Wicking Capacity Test.

17. The method of claim 10 wherein the laminated wipe has a vertical wicking distance rate of at least about 6 mm in one minute, as measured by the Vertical Wicking Distance Test.

18. The method of claim 10 wherein the laminated wipe has a vertical wicking capacity of at least about 0.12 mm/sec as measured by the Vertical Wicking Distance Test.

19. The method of claim 10 wherein neither the non-pigmented layer nor the pigmented layer is a polymeric film or film-like material.