Precautions for purchasing PVC bags

When choosing PVC bags, it is necessary to comprehensively consider multiple dimensions such as material, quality, labeling, purpose compatibility and environmental friendliness to ensure safe and compliant use. The following are the specific precautions:

First, material and quality

Observe the appearance

High-quality PVC bags have uniform color, high transparency, neat edge banding without burrs, and clear and firm printing.

Avoid choosing bags with cloudy colors, spots or blurry printing. Such products may have inferior raw materials or process defects.

Touch feel

High-quality PVC bags have a smooth, dense and flat surface, while inferior ones have a rough, uneven surface and may become sticky and rough.

Smell the odor

Brand new PVC bags should have no pungent smell. If there is an unpleasant smell, it may contain inferior additives and pose a safety hazard.

Second, identification and certification

Check the product label

Qualified PVC bags should be marked with the product name, specification, thickness, manufacturer, production date and the implemented standard (such as relevant standards of GB/T).

PVC bags for food contact should be clearly labeled “For direct food contact” and comply with food safety standards.

Check the degradable label

Give priority to choosing bags with degradable labels (such as the JJ mark) or those clearly marked as made of degradable components like PLA or PBAT to reduce environmental pollution.

Third, application adaptability

Food packaging

Restricted use: PVC bags must not come into direct contact with high-fat foods (such as meat and cooked food) or be used for microwave heating. High temperatures and oils will accelerate the migration of plasticizers.

Compliant alternatives: When food contact is required, safe materials such as PE (polyethylene) and PVDC (polyvinylidene chloride) should be given priority.

Non-food uses

It can be used for packaging fresh produce such as vegetables and fruits that are not prone to spoilage and do not need to be eaten directly, but reuse should be avoided.

Fourth, environmental protection and compliance

Environmental protection requirements

Avoid using ultra-thin (thickness <0.025mm) PVC bags. Such products may not comply with environmental protection regulations and are prone to damage.

Compliant production

Choose products produced by regular manufacturers, check the production qualifications and quality inspection reports to ensure compliance with national standards (such as GB/T 21661-2020).

Fifth, price and cost performance

Beware of the low-price trap

PVC bags priced lower than the market average may use recycled materials or ultra-thin materials, making it difficult to guarantee their quality.

Comprehensive assessment

Within the budget, give priority to choosing products with reliable quality and complete labels to avoid usage risks caused by low prices.

Sixth, usage suggestions

Storage conditions

Store the PVC bags in a dry and cool place, avoiding direct sunlight and high-temperature environments to prevent material aging.

Waste disposal

After use, they should be sorted and thrown into the recyclable trash can. It is supported to use shopping bags made of degradable materials to reduce plastic pollution.

We Committ To Serve All Kinds Of PVC/ EVA Bags, Cosmetic Bags, Canvas Bags And Paper Bags With Custom Service!

Shanghai Chenhuan Industrial is a manufacturer which is specialized in the research, development and production of all kinds of bags and packaging. Our products include PVC bags, EVA bags, TPU bags, PE bags, paper bags, cosmetic bags, canvas bags and tote bags. We provide OEM service to the material, the size, the style and the printing.Official website Address:https://www.chenhuanind.com/