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  2. Manila folder - Wikipedia

    en.wikipedia.org/wiki/Manila_folder

    The resulting paper was strong, water resistant, and flexible. [3] The paper shortage "only abated in the 1870s, when rag paper was gradually replaced by paper made from wood pulp". [4] By 1873, the United States Department of Agriculture quoted Thomas H. Dunham, who described Manila paper as "nine-tenths jute" when praising jute production. [6]

  3. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes

  4. Manila paper - Wikipedia

    en.wikipedia.org/wiki/Manila_paper

    It is generally formed by folding a large sheet of stiff card stock in half, sized so that full sheets of printer paper can fit inside without folding. Like manila envelopes, folders are traditionally buff , but other colors are occasionally used to differentiate categories of files.

  5. Envelope - Wikipedia

    en.wikipedia.org/wiki/Envelope

    An envelope is a common packaging item, usually made of thin, flat material. It is designed to contain a flat object, such as a letter or card. Traditional envelopes are made from sheets of paper cut to one of three shapes: a rhombus, a short-arm cross or a kite. These shapes allow the envelope structure to be made by folding the sheet sides ...

  6. Wet-folding - Wikipedia

    en.wikipedia.org/wiki/Wet-folding

    Wet-folding is an origami technique developed by Akira Yoshizawa that employs water to dampen the paper so that it can be manipulated more easily. This process adds an element of sculpture to origami, which is otherwise purely geometric. Wet-folding is used very often by professional folders for non-geometric origami, such as animals.

  7. Padded envelope - Wikipedia

    en.wikipedia.org/wiki/Padded_envelope

    Mailing envelopes and small packages may receive as many as 27 handlings during shipment with the maximum drop height of 1.2 metres (3.9 ft). [1] The contents of the mailing envelopes often need protection from shock and vibration damage. Cushioning or padding can be built into the mailing envelope to help protect the contents.