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Chigiri-e (ちぎり絵) is a Japanese art form in which the primary technique uses coloured paper that is torn to create images, and may resemble a water colour painting. The technique dates from the Heian period of Japanese history when it was often used in conjunction with calligraphy. Handmade paper is essential for the creation of chigiri ...
A torn sheet of paper Mending the Tears, print by Winslow Homer (1888), Los Angeles County Museum of Art Tearing is the act of breaking apart a material by force, without the aid of a cutting tool . A tear in a piece of paper , fabric , or some other similar object may be the result of the intentional effort with one's bare hands, or be accidental.
It is useful to evaluate web runability, controlling the quality of newsprint and characterizing the toughness of packaging paper. Tear strength for paper is measured in units of force, frequently measured with the Elmendorf Tester. Tear Factor is tear strength per unit basis weight, Tear_Strength/Grammage, or N/g/m 2.
The paper is then removed and the amount of moisture is measured. After five minutes, the patient is asked to open both eyes and look upward so the test strips may be removed. The Schirmer test score is determined by the length of the moistened area of the strips (using the scale packaged with the strips) The use of the anesthetic ensures that ...
Wear and tear is damage that naturally and inevitably occurs as a result of normal wear or aging. It is used in a legal context for such areas as warranty contracts from manufacturers , which usually stipulate that damage from wear and tear will not be covered.
Sandpaper backings may be glued to the paper or form a separate support structure for moving sandpaper, such as used in sanding belts and discs. Stronger paper or backing increases the ease of sanding wood. The harder the backing material, the faster the sanding, the faster the wear of the paper and the rougher the sanded surface.
The production and use of paper has a number of adverse effects on the environment. Worldwide consumption of paper has risen by 400% in the past 40 years [clarification needed] leading to increase in deforestation, with 35% of harvested trees being used for paper manufacture. Most paper companies also plant trees to help regrow forests.
Normal kraft paper is strong and relatively coarse. It has high tensile strength. The grammage is normally 40–135 g/m 2. Sack kraft paper, or just sack paper, is a porous kraft paper with high elasticity and high tear resistance, designed for packaging products with high demands for strength and durability.