Paper cup raw paper can be laminating is a special material used to make disposable paper cups, common coating materials include polyethylene (PE), polylactic acid (PLA) and water-based coating. The characteristics and differences of each of these coatings are described below:
PE coating: PE coating is a commonly used coating material for the original paper of mouth cups.PE is a plastic material that is safe for food contact and has good moisture resistance and barrier properties.PE coating can effectively prevent liquid penetration and keep the temperature of the drink inside the cup stable, which increases the durability and service life of the paper cup. In addition, PE coating has good tear strength and rupture resistance, making the cups stronger and more durable. However, the environmental performance of PE coating is relatively low, and it is not easy to be degraded, which has a certain impact on the environment.
PLA Coating: PLA coating is made from polylactic acid (PLA), a biodegradable bioplastic material. Unlike traditional plastic materials, PLA coating has better environmental friendliness and can effectively reduce the negative impact on the environment. In addition, PLA coating also has good moisture resistance and heat sealing properties, which can keep the temperature of the drink inside the cup stable and also effectively block liquid penetration. However, compared to PE coatings, PLA coatings are more costly but degrade faster than PE coatings.
Water-based coating: Water-based coating is an environmentally friendly coating material for cup paper. It uses water as a solvent, does not contain environmentally harmful solvent components. Water-based coating has good barrier properties and moisture resistance, can effectively maintain the temperature of the drink inside the cup and prevent liquid penetration. In addition, water-based coatings also have good printability and plasticity, allowing different patterns and design effects to be realized.
In summary, PE coating has good durability and barrier properties, but relatively low environmental performance; PLA coating has excellent environmental performance, but higher cost; water-based coating is an environmentally friendly option, but with lower durability. When choosing a coating material for the original paper of the mouth cup, comprehensive consideration can be made based on specific needs and environmental awareness.
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Post time: Sep-18-2023