пожолтување

пожолтување

Describes a transformation inherent to all vegetable fibers which is caused by aging. Paper made of vegetable fibers will turn various degrees of yellow as its environment couples with aging to produce this phenomenon. Yellowing is very evident in groundwood papers and only a few hours in direct sunlight is enough to yellow newspaper.

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Sõnaliik: noun
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Blossary:
Valdkond/domeen: Printing & publishing; Manufacturing
Category: Paper; Paper production
Company: Neenah Paper
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работ пожолтување

Dairy products; Butter

Испарувањето на водата резултира со потемна боја на блокови од путер, почнувајќи од рабовите.

неутрална pH

Printing & publishing; Manufacturing; Paper; Paper production

Offset papers manufactured with a pH of 6. 0 to 8. 0 on a scale of. 0 to 14. 0. Neutral pH factors are built into paper as a minimum value, to increase stability and improve ...

рециклирана хартија

Printing & publishing; Manufacturing; Paper; Paper production

Paper made from old paper pulp; used paper is cooked in chemicals and reduced back to pulp, after it is deinked.

неизбелена

Printing & publishing; Manufacturing; Paper; Paper production

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

сулфат

Printing & publishing; Manufacturing; Paper; Paper production

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

Printing & publishing; Manufacturing; Paper; Paper production

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

толеранција на тежината

Printing & publishing; Manufacturing; Paper; Paper production

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

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Valdkond/domeen: Events Category: Disasters

Чернобил

A disaster which occurred in the Chernobyl power plant in 1986, where one out of four nuclear reactors in the plant exploded, resulting in at least 5% ...