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Classification of paper towels: paper towels are divided into paper face towels, paper napkins, paper handkerchiefs and so on
.
Tissues are divided into two grades
according to quality: excellent products and qualified products.
Paper towels can be divided into ultra-flexible type and ordinary type
.
Tissues can be single, double or multi-layered
.
Paper tissue technical indicators: longitudinal wet tensile strength testing equipment: ETT-H20 horizontal anti-tensile peeling testing machine test method: 1, the sample width is 15 mm, the clamping distance is 100 mm, according to the number of finished layers
.
2.
Pretreatment should be carried out before the measurement, the specimen should be placed in the (105 Shi 2) °C oven for 15 min3, and after removal, it should be balanced under atmospheric conditions for at least 1 h before the measurement
.
4.
When measuring, the specimen is clamped on the horizontal tension machine to keep the specimen straight but not subject to force
.
5.
Add two drops of water (about 0.
1 mL) continuously to the center of the specimen with the rubber head dropper, the vertical distance between the outlet of the rubber head dropper and the specimen is about 1 cm, and the timing begins at the same time as the drip, and after 5s, use three layers of 102 type - medium speed qualitative filter paper (a single layer of specimen should use four layers of qualitative filter paper) lightly touch the 3 s to 4 s below the specimen to absorb excess moisture on the surface of the specimen, and the qualitative filter paper cannot be reused
.
6.
Start the tension machine immediately after draining, and the entire operation (dripping water to the end of the tensile test) should be completed
within 35 s (of which the stretching time should not be less than 5s).
7.
Take 10 effective measured values, calculate their average values, and the results are expressed
as single-layer measured values.
Shandong Puchuang Industrial Technology Co.
, Ltd.
independently develops and produces packaging material testing equipment, and customized equipment waiting for you to negotiate!
