Non-wovens
Contents
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
- Here, you can see the top 10 assignees in the Nonwovens for skincare landscape and their publishing trends over different geographies. The first interesting geography is US, the second is Japan in general.
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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