PURPOSE
Obtaining decorative film materials
Paper specifications
| Paper weight with an area of 1sq.m., g | 80±2 90±3 100±3 |
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| Breaking strength in the dry state in the machine and transverse directions, N – for dry paper samples 60 g/sq.m. 70 g/sq.m. 80 g/sq.m. 90 g/sq.m. 100 g/sq.m. – for wet paper samples 60 g/sq.m. 70 g/sq.m. 80 g/sq.m. 90 g/sq.m. 100g/sq.m. |
⩾26 ⩾28 ⩾29 ⩾32 ⩾33 ⩾6,3 ⩾6,5 ⩾7,0 ⩾7,0 ⩾7,0 |
⩾35 ⩾40 ⩾45 ⩾50 ⩾55 ⩾6,7 ⩾7,5 ⩾8,3 ⩾11 ⩾13 |
| Air permeability (according to Gerley), s/100 cm3 | ||
| Permeability (penetration) by PVS (grid side), s | ||
| Smoothness on each side, s | ||
| Mass fraction of ash, % | ||
| pH of water extract | ||
| Degree of impurity (number of specks per 1 sq.m.) – the area from 0.3 to 1.0 sq.mm |
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Additional information
On the surface of paper no folds, wrinkles, glossy stripes, transparent spots and holes that are visible to the naked eye are allowed. Subtle folds, wrinkles, glossy stripes, transparent spots and holes, that can not be detected during the manufacturing process, are allowed if the index of these intra-roll defects does not exceed 3.0%