Disposable tableware currently has two categories: degradable and easy to recycle.
1. Pulp molding tableware
This kind of tableware is made of plant pulp such as reed and bagasse as the main raw material. Because of its simple production process, short construction period, good product appearance, good thermal insulation, waterproof and oil-proof performance, it can be processed into various shapes, and discarded tableware can theoretically be recycled, which is convenient for promotion.
2. Cardboard cutlery
Cardboard tableware is made of white cardboard paper for food packaging. After coating, spraying, and compounding, it is made into products of different uses through the stamping process. The main raw material for cardboard production is wood.
3. Degradable plant fiber tableware
This tableware is made by washing a certain amount of corn stalks, straw and other plant fibers, washing, sterilizing, drying, crushing and sieving with a pulverizer, and then adding light calcium carbonate, and starch, talcum powder and core masterbatch in a certain proportion. Add the above-mentioned mixed raw materials to 45-50 ℃ of warm water and stir, cut the mixed raw materials and send them to a hot-pressing foam molding machine, and instantly shape at 200 ° C, then decolorize with a decolorizing agent, and condense to room temperature.
4. Starch tableware
This tableware uses starch as the main raw material, adds annual plant fiber powder and some special additives, and uses flash fixation technology to turn the raw material into foam. After this treatment, the molecular arrangement of starch changes, and then cold-pressed into various shaped cutlery.
The above are the types of degradable tableware, and the materials of easy-to-recycle tableware have been standardized for a long time. The representative is the crystal tableware processed by GPPS at high temperatures. Although it is also a food-grade raw material, GPPS has a lower cost on the one hand and is easy to recycle on the other hand. Compared with degradable tableware, its products have advantages in strength, water resistance and other aspects, so the market share is gradually increasing.