Our Unbuffered acid-free tissue paper is excellent for stuffing, interleaving and a variety of other uses. It is translucent, acid-free, pH neutral, made from virgin alpha-cellulose pulp, and it contains no sulfur that could cause tarnish. Available in both sheets and rolls, it has countless applications in museums, archives or libraries. Our tissue has a thickness of approximately 0.001 of an inch. The tissue has a soft surface that makes it an ideal choice for separation wrapping of silk, leather and much more. It's an excellent choice for separating prints, colored prints, watercolors, drawings, lithographs and protecting of artifacts while also a great material for wrapping and packing of textiles for storage.
| SPECIFICATION | UNBUFFERED | BUFFERED | |
|---|---|---|---|
| Chemical Fiber(%): | 100% | 100% | |
| GE Brightness: | 90.00 | 90.00 | |
| Lignin Free: | Yes | Yes | |
| Basis Weight (24x36-480): | 12.00 lbs. | 12.00 lbs. | |
| Wt./Unit Area (g/sqm) | 21g/sqm | 21g/sqm | |
| Caliper: | 0.0012 | 0.0012 | |
| Acidity (pH) | 6.8-7.4 | 8.0-8.2 | |
| Calcium Carbonate (Min.) | None | 3.5% | |
| Sulphur Content (Max.): | 0.0004 ppm | 0.0004 ppm | |
| Soluable Chlorides (Less Than): | 0.025 | 0.025 | |
| Acid Content: | 0.02% | 0.02% | |
| (Not Exceeding Equivalent SO3) | |||
| Bursting Strength: | 4.50 PSI | 4.50 PSI | |
| Tearing Resistance: | |||
| Machine Direction | 8.67Grams | 8.67 Grams | |
| Cross Direction | 11.33 Grams | 11.33 Grams | |
| Tensile Resistance: | |||
| Machine Direction | 2.17 kg | 2.17 kg | |
| Cross Direction | 1.20 kg | 1.20 kg | |
| Gurley Porosity: | 4.0 sec/100ml | 4.8 | sec/100ml |