High strength paper and process of manufacture

Details High strength paper and process of manufacture High strength paper and process of manufacture

2006-03-22

2011-11-22

Hug, Eric (Department: 1741)

Paper making and fiber liberation

Processes and products

Non-fiber additive

C162S168100, C162S183000, C162S184000, C162S186000

Reexamination Certificate

active

08062476

ABSTRACT:
A preparation of high strength paper by incorporating a polymeric film into the paper web during the paper making process is provided. The polymeric film is either a cold water soluble film or hot water soluble film or water insoluble hydrophilic film or non soluble non hydrophilic film or a combination of cold+hot+cold water soluble film or cold+hot water soluble film or cold+non soluble hydrophilic film or cold+non soluble hydrophilic film+cold water soluble film or cold+non soluble non hydrophilic film or cold+non soluble non hydrophilic film+cold water soluble film or slit strips of one or many of these combinations woven or intertwined offline and incorporated into the paper during the paper making process. Zone coating or discreet printing or zone extrusion striping or formation of hot water soluble film on preformed cold water soluble film which is then inserted into paper during the paper making process, thus using cold water soluble film as a carrier is also provided. The combination of the water soluble film(s) may be plain or wholly or partially perforated.

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