Recycling background

Leather paper and kraft paper are widely used in food, daily chemicals, logistics, and other industries as paper-plastic composite packaging materials due to their durability and excellent printability. However, once discarded, these composite materials are difficult to degrade naturally, and traditional recycling methods often lead to resource waste. The paper-plastic separation technology for leather paper and kraft paper, through specialized equipment and standardized processes, enables efficient separation and recycling of paper and plastic resources, offering a key solution in the field of environmental protection and recycling.

Recycling Challenges of Leather Paper and Kraft Paper Plastic Composites

When combined with plastic, leather paper and kraft paper offer both the texture of paper and the moisture resistance of plastic, making them popular in packaging. However, recycling such paper-plastic composites presents two major challenges:

The strong bond between paper and plastic makes manual separation less than 10% efficient, hindering large-scale processing.

Improper disposal leads to white pollution, while incineration releases harmful gases, failing to meet environmental standards.

 Standardized Process for Paper-Plastic Separation of Leather Paper and Kraft Paper

Shredding with double Shaft Shredder:

Discarded paper-plastic composites are fed into a dual-shaft shredder, which breaks down large materials into uniform small pieces, reducing difficulty in subsequent separation.

Precise Separation with  Paper Plastic Separator:

Shredded material enters a horizontal paper-plastic separator (core equipment). Without heating or chemicals, this machine integrates wet disintegration, crushing, and rubbing to separate pulp from plastic in leather paper and kraft paper.

Pulp Recovery: Slag Separation → Dehydration → Press Filtration：

The separated pulp undergoes slag separation, pulp dehydration, and press filtration, resulting in recycled pulp suitable for reproducing leather paper and kraft paper.

Cleaning Line → Two-Stage Pelletizing：

The separated plastic is cleaned to remove residual impurities and then processed through a two-stage pelletizing line to produce plastic pellets, which can be reused in manufacturing plastic packaging products.

Advantages of Paper Plastic Separation Equipment for Leather Paper and Kraft Paper

No chemicals or heating are required. The water system is recycled, producing no wastewater or waste, aligning with environmental regulations.

Designed for the composite structure of leather paper and kraft paper, it achieves over 99% plastic purity and 99.5% pulp purity, with a raw material recovery rate of 99.9%.

The integrated process saves labor and material costs. The separated pulp and plastic can be directly used as recycled raw materials, helping companies turn waste into valuable resources.

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