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2023

How to Identify PE Plastic Bags and Teach You Several Methods to Identify Them

In daily life, many products are packaged with PE plastic bags, but there are many types and names of packaging materials. When we need to use PE plastic bags, what method do we use to identify them?

2023

Reasons and solutions for defects in food bag manufacturing

Reasons for food bag manufacturing: 1. The adhesive tape should be evenly applied with gravure marks; 2. Excessive glue application; 3. Poor surface lubricity of the substrate; 4. There are impurities in the conveyor film guide roller; 5. There are debris or damage on the scraper, resulting in scratch marks;

2023

Precautions for packaging roll production

Roll material is a commonly used packaging form in the industry, and it is widely used. Therefore, the knowledge points to pay attention to when processing and producing roll material are as follows. 1. Before starting the machine, confirm that the raw materials, including name, specification, weight, quantity, and production schedule are accurate and accurate;

2023

Common problems in the production process of frozen food packaging

The basic requirements for the packaging of frozen food are to maintain the quality characteristics of the product from production, transportation to sales, prevent bacterial contamination, and be convenient for consumption. At present, there are two main types of packaging for frozen food: soft type and hard type. The soft type is based on plastic film. Hard packaging, such as slightly thicker paper packaging boxes and composite aluminum foil stamping containers, accounts for a large proportion of the former. During the production process, the packaging of frozen food is prone to the following problems:

2023

Characteristics of OPP film composite bags

1. OPP film composite bags have good transparency, better heat resistance than CPP film, and good barrier performance. They are widely used in the outer layer of composite bags, and are combined with aluminum foil with good heat sealing properties to greatly improve the rigidity, stiffness, and physical and mechanical properties of the composite film;

2023

5 kg rice Vacuum packing bag is good

First, let's talk about the common material of rice Vacuum packing bags, which is a two-layer structure of PA+PE, or a three-layer structure of PA+PET+PE, which is a two-layer structure of PA+PE. The two-layer material structure of PA+PET+PE adopts PET three-layer material structure, which has good printing effect and is suitable for making external packaging bags for brand products. It has high physical strength and strong puncture resistance.

2023

The Function and Application of Plastic Round Bottom Bag

A plastic round bottomed bag is a plastic bag with a round bottom, which is a special round bottomed container for barreled products. The bag body is a round barrel, and the bottom is a flat bottom. After folding the bag in half, it becomes a flat shape. The bottom is usually made by hand hot pressing, and the workmanship is usually semi manual. Therefore, compared to flat bags, round bottomed bags have a much higher price, not due to material costs, but because the sealing edge requires manual production, resulting in much higher labor costs. Plastic round bottomed bags are commonly used in silicone factories to hold liquid silicone. Most of them are PE round bottomed bags, mainly placed inside an iron bucket and then filled with liquid silicone. The round bottomed bag effectively prevents the silicone from coming into contact with the bucket, allowing the bucket to be reused repeatedly and reducing production costs for the enterprise. The function of a round bottom bag is to adapt to the container and prevent the items inside the bag from getting damp. As an inner lining bag, it prevents the occurrence of oxidation, solidification, and other situations of items, silicone or other liquids. Round bottom bags are widely used in the silicone industry, especially in the export silicone industry. Liquid silicone is prone to leakage when directly loaded into a drum. After adding a cylindrical round bottom bag, the round bottom plastic bag tightly adheres to the drum set, and the silicone is not easy to seep out after being loaded into the drum, Generally, the silicone that is loaded into the drum is in a high-temperature state, so products generally have high requirements for the high-temperature resistance and tear resistance of the round bottom bag. Therefore, modified materials such as metallocene and POE are usually added to the formula of the round bottom bag to increase its tear resistance.

2023

What are the composite materials used in vacuum bags

Vacuum bags are mainly composed of composite materials such as PE, RCPP, PET, PA, AL, PVA, etc 1. Bag mainly made of PE material: It is suitable for low-temperature vacuum bags. Products that require heating are not suitable for use, and frozen seafood is commonly used. 2. Bags mainly made of RCPP material: Suitable for high-temperature cooking bags, so high-temperature cooking bags are mostly made of this material. 3. PET based bags: increase mechanical strength and are mostly used for packaging moisture-proof, powder, puffed food, and dry goods products. 4. Bag mainly made of PA material: increases physical strength, has good puncture resistance and strength, and is usually made into toothbrushes, wooden combs, fruit packaging bags, etc. 5. Bag mainly made of AL material: It is the aluminum foil material we often mention, which has high barrier, shading, and moisture resistance. 6. Bags made mainly of PVA material: Soft in texture and good in transparency, they are a new type of environmentally friendly material that can effectively increase barrier performance and have a high barrier coating.

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