No-carbon-required papers

As a general rule, the voucher agency should receive a copy of all forms. Service providers will probably wish to keep a copy of the form for their records. Sometimes diagnostic service providers will require copies of at least parts of the clinic record. Multiple copies of forms can be produced cheaply using NCR (no carbon required) paper that prints through to the sheet below with the pressure of a pen. 

In 1954, the National Cash Register Company (now NCR Corporation) and the Appleton Coated Paper Company (today s Appvion) collaborated to introduce the first carbonless paper. It was known then, as it is today, as the NCR PAPER brand of carbonless paper. The product was simply promoted as a new paper product that eliminates carbon paper. Some dubbed it the no carbon required paper. The first commercial sale took place on March 26,1954, and marked the first use of the NCR PAPER trademark. 

Menne T, Asnaes G, Hjorth N (1981) Skin and mucous membrane problems from no carbon required paper. Contact Dermatitis 7 72-76... 

Alumina trihydrate (ATH) is made from waste generated by the almninum metal purification process. It has high brightness but low refi active index. At low levels of substitution for Ti02, 25% or less, optical properties can be maintained. Like the synthetic silicas, ATH can be used as a paper brightning pigment when opacity is not as important. ATH is used in NCR (no carbon required) papers where it favorably affects the special dyes used in the paper. ATH is also known for its flame retardant properties. ATH retards bmming by the release of water at rather low temperatures. It is added to impart flame retardance to certain specialty papers. 

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See also in sourсe #XX -- [ ]

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