1. According to the shape of the cross-section of the filter bag, it is divided into a flat bag (trapezoid and flat) and a round bag (cylindrical). 2. According to the way of air inlet and outlet, it is divided into the lower air inlet and upper air outlet and upper air inlet and lower…
1. Gas cleaning: Gas cleaning is by means of high-pressure gas or external atmosphere to blow back the filter bag to remove the dust on the filter bag. Gas cleaning includes pulse blowing, reverse blowing and reverse suction. 2. Mechanical rapping for dust removal: divided into top rapping and middle rapping for dust removal (both…
PVC material is polyvinyl chloride. It is one of the largest plastic products in the world. It is cheap and widely used. Polyvinyl chloride resin is white or light yellow powder. It cannot be used alone and must be modified. PVC can be added with different additives according to different purposes, and polyvinyl chloride plastics…
1. There are multiple choices of transparent, opaque, and frosted materials; 2. Strong anti-fouling power; 3. Excellent insulation; 4. Moisture-proof and waterproof performance is good; 5. Recyclable, environmentally friendly, and low-carbon; 6. High quality and low price, beautiful appearance, good advertising effect; 7. A wide range of applications, suitable for food, electrical appliances, medicine, toys,…
Plastic bags are light in weight, easy to shape, and have a wide range of applications. They can be soft, hard, wet, dry, sealable, breathable, and can be used once or for a long time. Since the introduction of plastics, it has been studied to use plastics to replace materials such as metal, wood, or…
1. Determine the specifications and printed documents: Regarding the specifications of T-shirt bags, they are similar and non-uniform and can be customized according to customer requirements. Conventional specifications such as: 20*32cm, 25*40cm, 30*48cm, 35*55cm. The thickness of the single layer is not less than 0.025mm according to the standard of plastic limit order. The printed…
1. Small white kraft paper bags. Generally, this kind of kraft paper bag is large in quantity and widely used. Many businesses require this kind of kraft paper bag to be cheap and durable. Machine operated. 2. The practice of medium-sized kraft paper bags. Under normal circumstances, medium-sized kraft paper bags are made of kraft…
1: According to the material, it can be divided into: a. Pure kraft paper bag; b. Paper aluminum composite kraft paper bag (kraft paper composite aluminum foil); c: Woven bag composite kraft paper bag (generally larger bags). 2: According to the bag type, it can be divided into: a. Three-side sealing kraft paper bag; b.…
1. Multi-layer kraft paper bag: use two or more layers of kraft paper for machine processing to make a bag shape, use polyester thread for stitching at the bottom, and then use hot air paper for heat sealing. 2. Paper-plastic composite bag: also known as a three-in-one kraft paper bag. The outer layer is kraft…
Steps/Methods 1 Choose two different colors of cloth 2 The first type of cloth, draw a 10×9.5cm rectangle on the back 3 The second kind of cloth, draw two 15×9.5cm rectangles on the back 4 Cut out three rectangles, do not cut along the line when cutting, leave a distance of 1~2cm from the drawn…
