I. Applications and Characteristics of Low-Melting-Point Feed Bags
Low-melting-point feed bags are primarily used for packaging easily meltable materials, such as rubber and resin. They melt at a certain temperature, offer excellent sealing properties, are moisture- and dust-proof, and are convenient and quick to use.
II. Main Ingredients in Low-Melting-Point Feed Bag Formulas
1. Low-Density Polyethylene (LDPE): Serves as the base material, enhancing the toughness, strength, and abrasion resistance of the feed bag.
2. EVA: Increases the melting point, lowering the melting point of the feed bag and improving heat resistance and flexibility.
3. Antioxidant: Prevents oxidative degradation of the raw materials, maintaining the long-term shelf life of the feed bag.
4. Calcium Carbonate: Adds weight, increases the hardness of the bag surface, and enhances color.
III. How to Choose the Right Raw Materials
1. Choose a well-known brand of LDPE for stable and reliable quality.
2. Choose a brand of EVA from a professional manufacturer for guaranteed quality.
3. Antioxidants should be added in appropriate amounts to avoid excessive oxidation and product degradation.
4. Calcium carbonate should be of moderate fineness to avoid uneven pressure and deformation of the feed bag surface.
IV. How to Control the Formula Ratio
1. The ratio of each raw material should be determined according to the manufacturer's specifications.
2. The quality of each raw material must be ensured and strictly controlled within the tolerance range.
3. Before producing the feed bag, the raw materials should be mixed in proportion. The mixing time should not be too long to avoid affecting the production process.
V. Common Problems and Solutions
1. Damage to the feed bag: Strengthen the toughness and strength of the raw materials, increase the thickness, and control the temperature during the production process.
2. Easy cracking of the feed bag: Increase the softness and elasticity of the material.
3. Uneven quality of the feed bag: Control the quality and mixing ratio of the raw materials and strictly control every step of the production process.
