Preparation process of test-liner environment-friendly kraft cardboard paper

A preparation process and kraft box technology, applied in papermaking, paper machine, wet end of paper machine, etc., can solve problems such as the quality of kraft linerboard paper cannot be guaranteed, reduce environmental damage and increase fracture length. , The effect of reducing the cost of papermaking

Active Publication Date: 2018-07-06
DONGGUAN JIANHUI PAPER CO LTD
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Problems solved by technology

However, in the existing process, there are still many defects in the process of using waste ...

Method used

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  • Preparation process of test-liner environment-friendly kraft cardboard paper

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Embodiment Construction

[0030] In order to make the purpose, technical solution and advantages of the invention clearer, the invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] Such as figure 1 As shown, the present invention provides a preparation process of high breakage-resistant and environmentally friendly kraft liner paper, which is used to prepare waste paper into kraft liner paper. The waste paper includes 100% American old corrugated box waste paper, and the high The burst resistance index of the burst-resistant and environmentally friendly kraft linerboard is ≥3.8kPa m / g, and the preparation process of the high burst-resistant environmentally friendly kraft linerboard comprises the following steps:

[0032] A: Send the waste paper to the raw material yard to break up and sort the garbage, and send the sorted waste paper to the hydropulper of the OCC line and AOCC line through the chain conveyor;

[0033] B: The hydraul...

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Abstract

The invention relates to a preparation process of test-liner environment-friendly kraft cardboard paper. The preparation process comprises the following steps: A, picking and selection of fine waste paper raw materials; B, crushing process; C, screening and purification; D, heat dispersion; E, treatment in a slurry storage tower; F, pulping process; G, treatment in a post-processing tank; H, treatment in a pulp distribution tank; I, treatment in a pulp forming tank; J, treatment by using a desander; K, treatment by using a pressure screen; L, treatment by using a net part; M, treatment by using a press part; N, treatment by using a front drying part; O, treatment by using a sizing machine; P, treatment by using a post-drying part; Q, treatment by using a hard calender; and R, reeling-up process. According to the preparation process provided by the invention, waste paper is recycled, and the obtained product with the same quality with test-liner environment-friendly kraft cardboard paper taking wood pulp as a raw material is produced, so that the cost is greatly reduced, the resources are saved, the effective circulation reuse of the renewable resources is guaranteed, and the damageto the environment is reduced. The preparation method has strong practicality and has strong promotion significance.

Description

technical field [0001] The invention relates to a papermaking process, in particular to a preparation process for high-breakage-resistant and environmentally-friendly kraft liner paper. Background technique [0002] Container board, also known as kraft paper and kraft cardboard, is one of the main paper types for carton paper. The raw materials for the production of containerboard paper generally use two raw materials: virgin wood pulp and waste paper wood pulp. Among them, virgin wood pulp has better burst resistance and performance, but the cost is higher, and it consumes more forest, water and electricity. At the same time, more pollutants are discharged. From the perspective of sustainable development, the trend in the industry is to reduce the use of virgin wood pulp as much as possible, save living resources, and recycle renewable resources as much as possible. Waste paper wood pulp is a very important renewable material, its paper production cost is low, and it can ...

Claims

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Application Information

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IPC IPC(8): D21B1/32D21B1/34D21D1/20D21F1/00D21F3/08D21F5/02D21G1/00
CPCD21B1/32D21B1/345D21D1/20D21F1/00D21F3/08D21F5/02D21G1/00Y02W30/64
Inventor 黎桂华
Owner DONGGUAN JIANHUI PAPER CO LTD
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