pH вредност

pH вредност

Degree of acidity or alkalinity measured on a scale from 0 to 14 with 7 the neutral point. Measurement of pH is important to quality control in making paper and pigments and in the preparation of platemaking chemicals. PH control of press fountain solutions is also essential to assure maximum plate-life and uniform ink drying. From 0 to 7 is acid; from 7 to 14 is alkaline.

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行业/领域：印刷及出版; 制造业
类别纸张; 纸制品
Company: Neenah Paper
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рециклирана хартија

印刷及出版; 制造业; 纸张; 纸制品

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Paper not treated to bleaching; it has a light brown hue.

сулфат

印刷及出版; 制造业; 纸张; 纸制品

Alkaline process of cooking pulp also known as the kraft process. Wood chips are cooked to a high brightness without fiber degradation in a substance of sodium sulfate and sodium ...

сулфит

印刷及出版; 制造业; 纸张; 纸制品

Acid process of cooking pulp. Wood chips are cooked in a solution of bisulphite.

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印刷及出版; 制造业; 纸张; 纸制品

Acceptable degree of variation in a paper's shipped weight, usually within 5 percent of the paper's nominal weight.

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