GB2383291A - Paper like plastic - Google Patents

Abstract

A Paper-Like-Plastic (Paperex) is produced, through a process, by extruding a mix of polypropylene, polyethylene, additives, antistatic agents and other admixtures through a pair of rollers, the surface of one roller is made of metal and the other is made of silicon. The temperature of these rollers are controlled between 5 C and 90 C. After passing through these rollers, "Paperex" is then subjected to Surface Treatment and Antistatic Treatment and cooled gradually to room temperature. It is then cut / slitted to size. Through the above process, "Paperex" is formed. "Paperex" feels like paper and permits writing with pens and pencils. "Paperex" can be used as covering material for various stationery items such as envelopes, document wallets, files and folders, book jackets, gift wrappers, indices and dividers, book and document covers, etc.

Description

<Desc/Clms Page number 1>

SAMPLE DESCRIPTION Title Paper-Like-Plastic Technical FieldThe present invention relates to plastic sheets.

Background ArtPlastic Sheets used for the production of various stationery items such as envelopes, wallets, files & folders, book jackets, gift wrappers, indices & dividers and other covering material cannot be written on with pens & pencils. These plastic sheets also do not feel like paper.

The Object of this invention is to produce a plastic base covering material (Paperex), which have all the characteristics of plastics but feels like paper and can permit writing on them with pens & pencils.

Summary of invention "Paperex"is produced, through a process, by extruding a mix of polypropylene, polyethylene, additives, antistatic agents and other admixtures through a pair of rollers, the surface of one roller is made of metal and the other is made of silicon.

The temperature of these rollers are controlled between 5 C & 90 C.

After passing through these rollers,"Paperex"is then subjected to Surface Treatment of intensed UV Light to create microscopic holes on its surface. This is followed by Antistatic Treatment and then cooled gradually to room temperature.

It is then cut/slitted to size. Through the above process,"Paperex"is formed.

"Paperex"feels like paper and permits writing with pens & pencils.

<Desc/Clms Page number 2>

Specific Example In order to allow the present invention more readily understood, the following flow chart (Flow Chart 1) is given, showing the process made in accordance with the present invention.

"Paperex"is produced, through (Step 1) a formulation of polypropylene mix of polypropylene, polyethylene, additives, antistatic agents & other admixtures, (Step 2) input into a extruder and (Step 3) extruded. (Step 4) The extruded mix is squeezed between 2 rollers (one roller is made of metal and the other is made of silicon) at a controlled temperature of between 5 C & 90 C.

After passing through these rollers,"Paperex"is then subjected to (Step 5) SurfaceTreatment of intensed UV Light to create microscopic holes on its surface. This is followed by (Step 6) Antistatic Treatment and then (Step 7) cooled gradually to room temperature. It is then (Step 8) cut/slitted to size.

Through the above process,"Paperex"is formed."Paperex"feels like paper and permits writing with pens & pencils. Paperex can be used as covering material for various stationery items such as envelopes, document wallets, files & folders, book jackets, gift wrappers, indices & dividers, book & document covers, etc.

Claims (2)

1. CLAIMS A Paper-Like-Plastic (Paperex) is produced, through a process, by extruding a mix of polypropylene, polyethylene, additives, antistatic agents and other admixtures through a pair of rollers, the surface of one roller is made of metal and the other is made of silicon. The temperature of these rollers are controlled between 5 C & 90 C.

   After passing through these rollers,"Paperex"is then subjected to SurfaceTreatment and Antistatic Treatment and cooled gradually to room temperature. It is then cut/slitted to size. Through the above process,"Paperex"is formed.

   "Paperex"feels like paper & permits writing with pens & pencils.

   "Paperex"can be used as covering material for various stationery items such as envelopes, document wallets, files & folders, book jackets, gift wrappers, indices & dividers, book & document covers, etc.

   <Desc/Clms Page number 4>

   Amendments to the claims have been filed as follows What we claim IS :- I A method of manufacturing"Paper-Like-Plastic"through a process, whereby a mix of polypropylene, polyethene, additives, antistatic agents and other admixtures are extruded through a pair of rollers, the surface of one roller is made of metal and the other of silicon, with the temperature of these rollers controlled between 5 C & 90 C.
2. 2 In conjunction with claim 1, the"Papei--Like-P, astic" can be written with pens & pencils and feels like paper immediately after passing through the above mentioned rollers and this"Paper-Like-Plastic"is further subjected to surface treatment and antistatic treatment to enable it to be used extensively in the paper and stationery industry, for products such as envelopes, document wallets, files & folders, book jackets, gift wrappers, indices & dividers, books & document covers