BINDING MATERIALS on paper warp with polyvinylchloride covering TC BY 00300417.093 - 98
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The binding material is made on three groups:
1 group – binding material, intended for
manufacturing of rigid book covers and other goods;
2 group – binding material with the lowered weight,
intended for manufacturing of general writing-books,
rigid covers and other white goods;
3 group - material intended for manufacturing
general writing-books and other white goods.
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Physical and mechanical indicators:
| |
1 gr. |
2 gr. |
3 gr. |
| 1. Weight of 1 m. sq., g |
200 ± 20 |
265 ± 20 |
310 ± 20 |
| 2. Lacerate loading
in longitudinal direction,
Í, not less than
|
40 |
45 |
- |
| 3. Stability of covering colouring
to dry friction, points,
not less than
|
4 |
4 |
4 |
| 4. Adhesion, kN/m. sq., no more than |
78 |
78 |
78 |
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