8 Common Questions About Pulp Molded Tableware
1. What are the raw material components used in thepulpmolding tableware and their respective proportions?
Conventionalpulpmolding tableware generally follow the ratio of 70%-90% sugarcane fiber + 10%-30% bamboo pulp fiber. Different tableware will also adjust different fiber ratios according to the shape, angle, hardness, and stiffness of the product. Of course, plant fibers such as wheat straw, and reeds will also be added as needed. All are made of plant fibers without adding chemical materials such as PP and PET.
2. How can the waterproof and oil-proof effect of pulp molding tableware be achieved?
Pulp molding tableware will add certain food-grade additives, generally 1.0%-2.5% for water repellent and 0.5%-0.8% for oil repellent, to achieve the effect of being waterproof and oil repellent. The test involves using water at a temperature of 100°C and oil at a temperature of 120°C, with a test time of 30 minutes. Special requirements can include extending the oil temperature test time.
3. Do pulp molding tableware products contain fluorine?
At present, most of the oil-repellent agents in pulp molding tableware on the market contain fluorine, and tableware that is waterproof but not oil-proof does not contain fluorine.
If pulp molding tableware is required to be fluorine-free, waterproof, and oil-proof, Chem-Plus'fluorine-free oil-repellent product series can consistently meet the oil-proof requirements from low to high temperatures. The technology is world-leading and has established long-term cooperation with leading domestic and foreign enterprises.
In contrast to barrier coatings, in-slurry additions create a barrier layer directly inside the package, ensuring uniform resistance to oil and water throughout. Chem-Plus fluorine-free oil repellent, a drop-in replacement for PFAS, can be directly added to the pulp tank in the wet end process of pulp, bringing great convenience to production. This is particularly beneficial for three-dimensional packaging, such as disposable bowls, plates, and clamshell containers used in takeaways.
4. How long does it take for pulp molding tableware to completely degrade?
In the absence of an industrial decomposing machine, it takes approximately 45-90 days for pulp molding tableware to completely decompose in a landfill in its natural state. During the degradation process, no harmful components are produced, and it does not cause harm to terrestrial organisms, marine corals, or marine organisms.
After decomposing, 82% of the ingredients consist of organic matter, which can be used as fertilizer for land utilization. This tableware is made from natural materials and returns to nature
5. Can pulp molding tableware be microwaved and refrigerated? What is the maximum temperature it can withstand
The pulp molding tableware can be heated by microwave and baked in the oven without any harmful chemicals. The maximum temperature can reach 220°C.
It can support the freezing and freezing of the refrigerator, and the freezing can reach minus 18°C.
6. What type of product quality testing standards does the pulp molding tableware have?
The pulp molding tableware complies with international standardized inspection standards such as the US Food and Drug Administration (FDA) and the German New Food and Dietary Goods Act (LFGB).
7. Can pulp molding tableware be printed with logos?
Logos can be printed. Most of the printed products are the circle, bottom or top of pulp molding tableware. Products such as cups and bowls are mostly printed on the outside of the product, and curved surface printing is required. According to the printing equipment, it is divided into screen printing, pad printing and laser laser printing (code printing).
Printing products will increase product costs accordingly.
8.Have the raw materials used in the production of white pulp molding tableware been bleached? What bleach is used?
Unbleached plant fiber pulp contains a small amount of lignin and colored impurities, so it is yellow in color and the fiber is relatively hard. Semi-bleached pulp contains a large amount of pentosan, and its color is light yellow, commonly known as true color. The fibers of bleached pulp are white, pure and soft in texture, but due to bleaching treatment, the fiber strength is lower than that of unbleached pulp.
Bleach is generally bleached with hydrogen peroxide, not chlorine!