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Packaging

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A good impregnation is important to get a homogeneous cook and low rejects.	Bruce 2024-12-1	019	Bruce 2024-12-1 09:21
In the impregnation, cooking liquor penetrates into the capillary structure of the chips and low temperature chemical reactions with the wood begin.	Bruce 2024-12-1	021	Bruce 2024-12-1 09:21
The impregnation can be done before or after the chips enter the digester and is normally done below 100 �� (212 ��).	Bruce 2024-12-1	019	Bruce 2024-12-1 09:21
Air remaining in chips at the beginning of liquor impregnation is trapped within the chips.	Bruce 2024-12-1	019	Bruce 2024-12-1 09:21
The next step is to saturate the chips with black and white liquor.	Bruce 2024-12-1	021	Bruce 2024-12-1 09:20
The steam treatment causes the air to expand and about 25% of the air to be expelled from the chips.	Bruce 2024-12-1	021	Bruce 2024-12-1 09:20
Cavities inside fresh wood chips are partly filled with liquid and partly with air.	Bruce 2024-12-1	021	Bruce 2024-12-1 09:20
The chips normally first enter the presteaming where they are wetted and preheated with steam.	Bruce 2024-12-1	022	Bruce 2024-12-1 09:20
Common wood chips used in pulp production are 12�C25 millimetres (0.47�C0.98 in) long and 2�C10 millimetres (0.079�C0.394 in) thick.	Bruce 2024-12-1	019	Bruce 2024-12-1 09:20
In some situations, the process has been controversial because kraft plants can release odorous products and in some situations produce substantial liquid wastes	Bruce 2024-12-1	018	Bruce 2024-12-1 09:19
It is the dominant method for producing paper.	Bruce 2024-12-1	021	Bruce 2024-12-1 09:19
The technology entails several steps, both mechanical and chemical.	Bruce 2024-12-1	020	Bruce 2024-12-1 09:19
The kraft process (also known as kraft pulping or sulfate process) is a process for conversion of wood into wood pulp, which consists of almost pure cellulose fibres, the main component of paper.	Bruce 2024-12-1	024	Bruce 2024-12-1 09:19
Twisting paper is mostly opaque and often supercalendered.	Bruce 2024-12-1	021	Bruce 2024-12-1 09:18
These papers require a good strength, with highly oriented fibers.	Bruce 2024-12-1	020	Bruce 2024-12-1 09:18
The body of the cartridge is wound of a kraft paper of 80�C120 g/m2, which is further covered by an outer sheet of 60�C80 g/m2 with colour and printing.	Bruce 2024-12-1	016	Bruce 2024-12-1 09:18
In the cross direction, the cartridge is supported by the gun-pipe, but a sufficient elongation is needed.	Bruce 2024-12-1	024	Bruce 2024-12-1 09:18
Hunting cartridge paper needs a high tensile strength in the machine direction, which is the axial direction of the cartridges.	Bruce 2024-12-1	020	Bruce 2024-12-1 09:18
Hunting cartridge paper is a kraft paper used in shotgun shells.	Bruce 2024-12-1	020	Bruce 2024-12-1 09:17
Candy wrapping paper and twisting paper are thin 30�C40 g/m2 kraft papers and are mostly flexo or offset printed.	Bruce 2024-12-1	064	Bruce 2024-12-1 09:17

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