¥98.00
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PUSHEN Pushen PS 2930/2 medium black and white hiding power determination cardboard
Top white and bottom black142*250mm100 sheets/pack
5.1.2.1 Colorless transparent polyester film (Method A)
Untreated, with a thickness of 30 m to 50 m and a size of not less than 100 m x 150 mm
Note: By mutual agreement, thicker polyphenol films can be used.
5.1.2.2 black and white card paper (method B)
All cards are the same size, at least 100 mmX200 mm printing and varnishing adjacent black and white areas
Paints should be easily wetting but impermeable to solvent or water
The dimensions of the black and white areas shall be not less than 80 mmX80 mm, unless otherwise agreed, using a reflection meter or
For spectrophotometer measurement, the tristimulus values Y of the white area of the card paper should be 802, and the tristimulus values Y of the black area should not be greater than 5.
In order to avoid errors caused by different batches of card paper, the card paper used in the test should be of the same batch
5.1.3 Film Applicator
Composed of a range of Lacquer Film Applicators, these coatings applicators give a range of wet film thicknesses typically 100 m200
Paint film of uniform thickness. The light film scraped by the coating applicator should be at least 70 mm wide to obtain an area of uniform thickness and should not be less than 60 mmX60 mm
Note that in order to obtain a uniform paint film, it is recommended to use an automatic cloth device
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