Direct recycling of packaging materials for packaging technology

Re-packaging direct recycling refers to the plastic packaging that is recycled, without any physical and chemical degeneration and deformation processing, but using its original structure, shape, and function directly for the original packaging product or other related products. package of.

The direct recycling technology and process for packaging are as follows: sorting → picking → first washing → pickling → caustic washing → disinfecting → secondary washing → sodium bisulfite soaking → re-washing → distilled water washing → drying at 50°C (low temperature drying Dry) → Standby (becoming a finished package)
Which is very strict when the selection, must be discarded just after use, basically no pollution, no scratches above, transparent, smooth as a new bottle is basically qualified.
For non-edible barrels and containers used as oil and various liquids and pesticides, it is simpler to handle, only wash (detergent) → air dry or dry at 50°C to reuse.

In every process, cleaning and disinfection are performed. In particular, as a direct recycling of food packaging, an inspection process should be added before drying. The inspection is to meet the hygiene requirements for the relevant (to be packaged) food packaging.

However, as a non-food or chemical composition of the product packaging is not very strict, such as oil, detergents and other products, the relative health requirements are not very strict, according to the specific circumstances, the disinfection process can not. However, depending on whether the packaging it was used for has been used for the packaging of toxic substances, such as pesticide packaging, if the toxic products are recycled, the cleaning and disinfection process is also very strict.

The technology and process are mainly applicable to some hard, smooth, clean, easy to clean larger containers, such as trays, turnover boxes, large packaging boxes, and large-capacity beverage bottles, barrels containing liquids, and the like. These containers are technically processed and can be reused after passing the hygienic test.

The products that can be reused for packaging and recycling are: edible oils, beverages (mineral water, cola beverages, etc.), industrial oils (oils, lubricants, etc.), barrels of various drinking water, foods, and supermarkets. Supply and turnover containers and trays, construction materials (powder) and feed bags. The packaging structure is mostly bottles, barrels, boxes, bags and trays.
With regard to the direct use of recycled packaging in the recycling of plastic packaging, attention should be paid to some related issues. Especially in the implementation process of specific recycling, it is necessary to strictly adhere to the following principles.

1. Items before recycling in plastic packaging should be the same as those used after recycling. That is, the original use of vegetable oil bottles for recycling is also applied to the packaging of vegetable oils, and it is not appropriate to package other items. Because some items may change the packaging materials and may cause adverse chemical reactions to the objects, which in turn requires testing, verification and testing, especially food.

2. Some plastic packages have a more stable composition and can realize packaging of non-identical products. However, it is advisable to adhere to the original package of acidic products, and recycling is also best used for packaging acidic foods, ie the nature of the packaged goods before and after recycling should be the same.

3、Plastic packaging used for packaging pesticide industry before recycling, also used for pesticide product packaging after recycling, followed by analogy, pre-packaged daily chemical products, and then also packaged daily chemical products; pre-packaged food, and later packaged food...

4, for some products, packaging, can not be directly used without the firm. For example, the packaging of pharmaceuticals must never use recycled packaging directly.

5. For some recycled plastic packaging, the relevant information must be clearly understood, accurate, and never directly used. If the recovered plastic packaging cannot be used to determine which product is packaged (or which product has been packaged), it is never easy to use directly. If necessary, carry out relevant test tests.

6. Strict processing procedures should be adopted for direct recycling. Adhere to strict classification and disinfection and inspection. Otherwise, it will cause major mistakes (degeneration of products, poisoning of humans and animals, etc.) due to direct recycling of packaging.