Introduction
Nonwoven textiles are those which are neither woven nor knit, for example felt. General use hyphenates the word, but industrial use spells it as one word. Non-wovens are typically not strong (unless reinforced by a backing or densified). In the recent years non-woven material has become an alternative to polyurethane foam.
Non-woven fabric is typically manufactured by putting small fibers together in the form of a sheet (web) and then binding them either mechanically (as in the case of felt, by interlocking them with serrated needles such that the inter-fiber friction results in a stronger fabric), with an adhesive, or thermally {by applying binder(in the form of powder, paste, or polymer melt) and melting the binder onto the web by increasing temperature}.
Raw material
Non-woven materials are nowadays mainly produced from man-made fibers. Two synthetic polymers dominate the market: polypropylene and polyesters (mainly PET). Nonwovens are often application-designated as either durable or disposable. Nonwoven used as a housewrap to prevent water infiltration is a durable nonwoven. Nonwoven used as a facing on a baby diaper is a disposable or single-use nonwoven.
Application
Non-woven materials are used in numerous applications, including:
Hygiene
- Baby diapers
- Feminine hygiene
- Adult incontinence products
- Wipes
- Bandages and wound dressings
Medical
- Isolation gowns
- Surgical gowns
- Surgical drapes and covers
- Surgical scrub suits
- Caps
Technical
- Roll roofing and shingle reinforcement
- Insulation backing
- Battery electrode separators
- Vinyl flooring reinforcement
- Plastic surface reinforcement (veils)
- Wall coverings
- Honeycomb structural components
- Ceiling tile facings
- Circuit board reinforcement
- Electrical insulation
Geotextiles
- Soil stabilizers and roadway underlayment
- Agriculture mulch
- Pond and canal water barriers
- Sand infiltration barrier for drainage tile
Other
- Carpet backing (primary and secondary)
- Composites
- Marine sail laminates
- Table cover laminates
- Backing/Stabilizer for machine embroidery
- Thermal insulation (fiberglass quilting/batting)
- Pillows, cushions, and upholstery padding
- Batting in quilts or comforters
- Consumer and medical face masks
- Tarps, tenting and transportation (lumber, steel) wrapping
- Disposable clothing (foot coverings, coveralls)
Sample IP analysis
- Area: Baby diapers and Feminine hygiene.
- Search: Based on title, abstract and claims for some major companies in this field.
Year wise IP activity
- Based on title, abstract and claims for some major companies in this field.The graph is based on the patents of Kimberly-Clark Corp, Johnson & Johnson, Procter & Gamble, and Playtex from 1836 to 2006.
Competitive analysis
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Sample analysis of some patents
- This information is according to analysis of 27 patents.
Design patents
- Classification of Design patents
| Design | Total records | Kimberly Clark | Procter & Gamble | Johnson & Johnson | Playtex |
| Absorbent pad | 11 | 2 | 5 | 4 | 0 |
| Attaching napkin to garment | 1 | 1 | 0 | 0 | 0 |
| Fastening means | 1 | 0 | 0 | 1 | 0 |
| Shoulder strap pad for bra | 1 | 0 | 0 | 0 | 1 |
| Tampon | 2 | 0 | 0 | 0 | 2 |
Pictorial analysis
Absorbent pad
Attaching napkin to garment
Fastening means
Shoulder strap pad for bra
Tampon
Production patents
- Classification of Production patents
| Production | Total records | Kimberly Clark | Procter & Gamble | Johnson & Johnson | Playtex |
| Absorbent pad | 6 | 2 | 2 | 2 | 0 |
| Odour removing composition | 2 | 1 | 1 | 0 | 0 |
| Wrapper | 1 | 1 | 0 | 0 | 0 |
| Elastic | 1 | 1 | 0 | 0 | 0 |
| Tampon | 1 | 1 | 0 | 0 | 0 |
Non Wovens for Skin care wipes
Skin Care Applications
IP Activity
Based on Priority Year
Based on Publication Year
Assignee Statistics
- Following graph represents top assignees in field of non woven for skin care wipes.
- Following graph represents top assignees most active in last 10 years in field of non woven for skin care wipes.
Geographical Distribution
Unique Family Member
- The following graph represents geographical distribution of patents based on priority country.
Unique Family Member
- The following white space represents patents filed in different geographies by top assignees.
Statistics for Kimberly Clark
- IP activity for Kimberly Clark based on publication year
- IP activity for Kimberly Clark based on priority year
- The following white space represents geographical distribution of patents owned by Kimberly Clark.
- The following white space represents non-woven substrates as used by Kimberly Clark. (Year-wise distribution)
Citations
- Top cited patents:
| Publication Number | Priority Date | Publication Date | Assignee/Applicant | Title | Count of citing patents |
| US20060094320A1 | 20041102 | 20060504 | Kimberly Clark Corp | Gradient nanofiber materials and methods for making same | 60 |
| US20050137272A1 | 20030908 | 20050623 | Fmc Biopolymer As | Gelled biopolymer based foam | 44 |
| US20050148261A1 | 20031230 | 20050707 | Kimberly Clark Corp | Nonwoven webs having reduced lint and slough | 32 |
| US20070232179A1 | 20060331 | 20071004 | Procter & Gamble | Nonwoven fibrous structure comprising synthetic fibers and hydrophilizing agent | 31 |
| US20040030080A1 | 20010322 | 20040212 | Kimberly Clark Corp | Water-dispersible, cationic polymers, a method of making same and items using same | 27 |
| US6638527B2 | 20000417 | 20031028 | Unilever Plc | Substantially dry cleansing product of improved latherability and wet flexibility | 26 |
| US7576019B2 | 20040419 | 20090818 | Procter & Gamble | Fibers, nonwovens and articles containing nanofibers produced from high glass transition temperature polymers | 26 |
| US20050125877A1 | 20031216 | 20050616 | Procter & Gamble | Disposable nonwoven mitt adapted to fit on a child’s hand | 25 |
| US20060014460A1 | 20040419 | 20060119 | Procter & Gamble | Articles containing nanofibers for use as barriers | 24 |
| US6764988B2 | 20010418 | 20040720 | Kimberly Clark Corp | Skin cleansing composition incorporating anionic particles | 22 |
- Top assignees citing Kimberly Clark patents:
| Top Kimberly Clark patents citing assignees | Count | Technology cited |
| Procter & Gamble Co | 32 | Nonwoven substrates and disposable articles |
| Eastman Chemical Company | 23 | Nonwovens produced from multicomponent fibers |
| Donaldson Company Inc. | 14 | Nonwoven polymer blends |
| International Paper Company | 10 | Composition containing expandable microspheres |
| SCA Hygiene Products AB | 7 | Hygeine products |
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