Zhejiang Wenhong Packing Material Co., Ltd.

1. Blow Membrane (Blow Membrane) is a kind of plastic processing method, which means the plastic particles are heated, melted and blown into a thin film, in a better melt flow state through high-pressure air will be blown to the required thickness of the tube film, after cooling shaping into a film. 2. The quality of the film produced by this process is related to the machine and the plastic particles. It has the advantages of simple production equipment, less investment, quick effect, high mechanical properties, no side materials, less waste, cylindrical film, simple bag-making process and wide film. 3. If the film is blown out with new material, the color and lustre are well-proportioned, clean, and the finished product stretches well. If plastic particles made from recycled waste plastics are usually pigmented when they are made into films, the resulting films may be unevenly coloured, brittle and brittle, and at a lower price. 4. If the blown film material produced by professional blowing machine is suitable for all kinds of high-grade film packaging. The film can be widely used in light and heavy packing because of its good barrier, fresh-keeping, moisture-proof, frost-proof, oxygen-proof and oil-proof. 5, such as all kinds of fresh fruit, meat food, pickles, fresh milk, liquid drinks, medical supplies. If the non-professional blowing machine or blowing machine in the process of not using the correct method, then made of film material may also be inferior. 6. Most PE is used for blowing thin films, either general purpose low density PE (LDPE) or linear low density PE (LLDPE). HDPE film grades are generally used where excellent tensile strength and excellent impermeability are required. For example, HDPE films are commonly used in grocery bags, grocery bags, and food packaging. PE film processing is usually by common blown film processing or flat extrusion process.

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There are many different types of handbags. There may be hundreds of different types of handbags, depending on the size of the handbags. They come in many shapes and shapes, and they have different functions and looks. From the angle of packaging and printing industry, the types of handbags printing were sorted out, handbag printing is classified according to the following criteria: According to the different classification of Materials 1, white cardboard tote bag white cardboard tote bag is one of the most high-end tote bags, it features: The strength of white cardboard tote bag is the highest of all handbags, which is determined by the physical properties of white cardboard, designers generally use this tote bag for high-end clothing or merchandise. Paper delicate and white cardboard tote bag compared to white cardboard tote bag to feel delicate, white cardboard tote bag is particularly elegant. White cardboard has a good printability, designers can be bold to use a variety of design techniques (including color ideas). White Cardboard tote bag is one of the most expensive tote bags. 2. Whiteboard tote bag whiteboard is also a common material for tote bags. The handbags made of white board paper are strong enough to hold some goods of certain weight. Designers often use white board paper in garment handbags. Because of the general printability of white board paper, therefore, more suitable for printing text, lines or color blocks. White board paper strength, you can not cover film, therefore, the cost is relatively low, is a more affordable handbag. 4. Kraft paper handbags handbags made of Kraft paper are characterized by high fastness and low cost, and are generally used for holding common commodities. In addition to white Kraft paper, the general kraft paper background color is darker, therefore, more suitable for printing dark text and lines, but also design some strong contrast color block. Kraft paper handbags are generally not covered with film, is a cost-effective handbags.