100% synthetic nonwoven wipes

• US 20050133174A1
• Filed: 10/14/2004
• Published: 06/23/2005
• Est. Priority Date: 09/27/1999
• Status: Abandoned Application

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Pung, David John, Sherry, Alan Edward, Gorley, Ronald Thomas
• Application Number:
  US10/965,403
• Publication Number:
  US 20050133174A1
• Time in Patent Office: Days
• US Class Current: 162/108
• CPC Class Codes: A45D 2200/1018 comprising a pad, i.e. a cushion-like mass of soft material, with or without gripping means
• CPC Class Codes: A45D 2200/1036 containing a cosmetic substance, e.g. impregnated with liquid or containing a soluble solid substance
• CPC Class Codes: A45D 37/00 Sachet pads specially adapted for liquid toiletry or cosmetic substances
• CPC Class Codes: A47L 13/16 Cloths; Pads; Sponges metal scraping sponges A47L13/07
• CPC Class Codes: B08B 1/00 Cleaning by methods involving the use of tools cleaning hollow articles by methods or apparatus specially adapted thereto B08B9/00
• CPC Class Codes: B08B 1/143 Wipes
• CPC Class Codes: C11D 17/049 Cleaning or scouring pads; Wipes
• CPC Class Codes: D04H 1/492 by fluid jet D04H1/49 takes precedence
• CPC Class Codes: D04H 1/54 by welding together the fibres, e.g. by partially melting or dissolving in combination with needling D04H1/485

Abstract

The present invention relates to wipes comprising at least one layer of a 100% synthetic nonwoven web. The wipes may be provided as a single layer of nonwoven web, or may be provided in a laminate material, such as one comprising spunlaid-meltblown-spunlaid (SMS) webs. The 100% synthetic nonwoven webs of the present invention may be made via a process comprising a fiber laying step selected from the group consisting of spunlaying, meltblowing, carding, airlaying, wetlaying and combinations thereof. The 100% synthetic nonwoven webs of the present invention may be made via a process comprising a fiber bonding step selected from the group consisting of hydroentanglement, cold calendering, hot calendering, air thru bonding, chemical bonding, needle punching and combinations thereof. The nonwoven webs may also comprise one or more polyolefins. In one embodiment of the present invention, the nonwoven webs may be spunlaid and HET.

Claims

1. A wipe comprising at least one layer of a 100% synthetic nonwoven web, wherein said wipe is:

characterized by saturation loading of from about 1.5 to about 6.0 grams of liquid composition per gram of said wipe; and

premoistened with said liquid composition having a surface tension of below about 35 dynes per cm.

2. The wipe according to claim 1, wherein said liquid composition has a surface tension of below about 30 dynes per cm.

3. The wipe according to claim 1, wherein said wipe is characterized by saturation loading from about 2.0 to about 4.0 grams of liquid composition per gram of said wipe.

4. The wipe according to claim 1, wherein said wipe has a basis weight greater than about 30 grams per square meter.

5. The wipe according to claim 1, wherein said wipe has a basis weight from about 40 to about 70 grams per square meter.

6. The wipe according to claim 1, wherein said wipe has a cross-direction bending moment of less than about 0.09 (grams force·

centimeter²) per centimeter.

7. The wipe according to claim 1, wherein said wipe has an absorptive capacity of greater than about 4 grams of liquid composition per gram of said wipe.

8. The wipe according to claim 1, wherein said wipe has an absorptive capacity of greater than about 8 grams of liquid composition per gram of said wipe.

9. The wipe according to claim 1, wherein said 100% synthetic nonwoven web is made via a process comprising a fiber laying step selected from the group consisting of spunlaying, meltblowing, carding, airlaying, wetlaying and combinations thereof.

10. The wipe according to claim 1, wherein said 100% synthetic nonwoven web is made via a process comprising a fiber bonding step selected from the group consisting of hydroentanglement, cold calendering, hot calendering, air thru bonding, chemical bonding, needle punching and combinations thereof.

11. The wipe according to claim 1, wherein said 100% synthetic nonwoven web is comprised by one or more polyolefins.

12. The wipe according to claim 1, wherein said wipe is comprised by a laminate of two or more layers of said 100% synthetic nonwoven web.

13. A wipe comprising at least one layer of a 100% synthetic nonwoven web, wherein said web is spunlaid and hydroentangled to form said wipe, and further wherein said wipe is:

characterized by saturation loading from about 1.5 to about 6.0 g of liquid composition per gram of said wipe; and

premoistened with a liquid composition having a surface tension of below about 35 dynes per cm.

14. The wipe according to claim 13, wherein said liquid composition has a surface tension of below about 30 dynes per cm.

15. The wipe according to claim 13, wherein said wipe is characterized by saturation loading from about 2.0 to about 4.0 grams of liquid composition per gram of said wipe.

16. The wipe according to claim 13, wherein said wipe has a basis weight greater than about 30 grams per square meter.

17. The wipe according to claim 13, wherein said wipe has a basis weight from about 40 and about 70 grams per square meter.

18. The wipe according to claim 13, wherein said wipe has a cross-direction bending moment of less than about 0.09 (grams force·

centimeter²) per centimeter.

19. The wipe according to claim 13, wherein said wipe has an absorptive capacity of greater than about 4 grams of liquid composition per gram of said wipe.

20. The wipe according to claim 13, wherein said wipe has an absorptive capacity of greater than about 8 grams of liquid composition per gram of said wipe.

21. The wipe according to claim 13, wherein said liquid composition is comprised by bleach.