Sandpaper Base Paper Selection Misunderstanding

Sandpaper Base Paper Selection Misunderstanding 

 
Use the same base paper for 1. sandpaper of different sizes.. There is a big difference between coarse and fine sandpaper, sand planting amount, primer and compound glue amount, The requirements for the matrix are also different. General sandpaper coarse mesh to choose quantitative emphasis on sandpaper base paper, sandpaper breakdown to choose quantitative light Sandpaper base paper. On the smoothness of 2 paper, the requirements of coarse and fine grain size sandpaper are not the same. Sandpaper details due to the small sand particles, the amount of glue Not big, sandpaper surface smoothness should be high, especially the surface can not have paper hair, sandpaper coarse mesh is required to be relatively loose. 
 
	
 
 
2. sandpaper base paper does not match binder. Due to the raw paper copying process for coated abrasive production enterprises to produce different products. quality sandpaper and adjust the process accordingly. For example, the selection of raw and auxiliary materials for copying grade A paper, grade B paper and latex paper is different, Therefore, the production process of sandpaper production enterprises to select the appropriate binder, in order to coincide with the sandpaper base paper. Generally speaking: A grade paper Mainly used for the production of silicon carbide transparent sandpaper with epoxy resin as a binder; Class B paper production of ordinary water-resistant sandpaper with alkyd resin As a binder; latex paper production of dry grinding super-coated sandpaper with epoxy or phenolic resin as a binder, some enterprises in order to reduce raw Production cost, A- grade paper latex paper also uses alkyd resin urea-formaldehyde resin as binder, these two paper copying process, due to the use The process is different, and it is not suitable to use materials with low bond strength as sandpaper binder, otherwise it will affect the wear resistance and durability of sandpaper. Degree. If the production process is not properly controlled, the brittleness of the sandpaper will occur, resulting in cracking, and the phenomenon of peeling between the rubber and the paper. 
 
	
 
 
3. sandpaper base paper front and back mixed. The sandpaper base paper can be divided into positive and negative sides. The sandpaper base paper is pasted on one side of the net part of the paper machine. It is called the reverse side, and the other side is called the front side. The front is smooth and flat. Due to the sandpaper base paper production equipment is not the same as well The requirements of coated abrasive manufacturers are different, the front and back of sandpaper base paper are quite different, the oil absorption of sandpaper is different, sandpaper Smoothness is also very different, so according to the sandpaper production enterprises to produce varieties of coarse grain size requirements to choose the use of positive and negative Planting sand. There are sandpaper base paper manufacturers marked the front and back when leaving the factory. Whether there is any mark can be determined by the following methods: with naked eyes Observe the difference in structure on both sides of the paper, you can fold the paper pattern back up to observe and compare. 1 is another way to dry the paper and observe its volume. The curling method, curling the side inward, is usually called the reverse side.
 
4. sandpaper base paper temperature overrun. Due to the differences in the manufacturing process of sandpaper base paper, the temperature resistance of sandpaper base paper is determined. Tongzhi water sandpaper 70-80 ℃ can meet the production requirements, the use of rosin sizing agent A grade base paper if the processing paper or production exceeds. At 100 ℃, or when the drying time is too long, the sandpaper base paper is prone to brittleness, especially prone to cracks and broken ends. But adopt Grade A base paper produced by sexual sizing agent process can reach 120 ℃ without embrittlement. Therefore, manufacturers should understand the performance of sandpaper base paper, According to different process requirements, reasonable control of temperature, to achieve the correct use, in order to avoid damage to the substrate due to high temperature, resulting in Sandpaper quality issues. 
 
	
 
 
5. pull the greater the sandpaper base paper is not necessarily easy to use. The papermaking process, if you do not add chemical additives to rely on pulp alone, its strength Not enough, in order to improve the binding force between the fibers, enhance the strength of the paper water resistance, usually pulp or paper when adding a certain amount of quantification. learning aids. However, if this additive is used in excess, it will also prevent the penetration of the resin, so we often say that it does not absorb oil and has the pursuit. The greater the paper pulling force, the better it is a misunderstanding. This indicator alone cannot reflect the internal quality of sandpaper base paper, and it must be comprehensively tested. Its physical indicators, such as sandpaper base paper quantitative, sandpaper base paper tightness, sandpaper base paper folding resistance, sandpaper base paper absorption, sand. Paper base paper moisture, etc. 
 
	
 
 
	BRIEF INTRODUCTION 
 
	Henan Yuteng Grinding Material Co., Ltd. is located in Kaifeng City, Henan Province. Is a set of production, research and development, service as one of the grinding agent, grinding, polishing products professional company, specializing in the production and sales of coated grinding tools derived ancillary products: flocking sand disc, blade, all kinds of special-shaped grinding disc, sponge grinding block, steel paper disk, ring sand belt, sand ring and automotive polishing products.  
 
	Our main products are velcro disc,Abrasive Paper,Fiber Disc,Flap Disc,Abrasive Cloth,Abrasive Belt. 
 
	Relying on the advantages of the industrial base, the company has advanced production equipment and strong technical force, complete testing equipment to ensure that the products are sharp, wear-resistant and high strength, and the product quality reaches the advanced level of similar international products.  
 
	Our products can be used for all kinds of metal watches and stainless steel, alloy steel, non-alloy steel, non-ferrous metals, titanium alloy and other grinding and wire drawing, polishing and so on; Wood, high-medium fiberboard, flower board, composite board, glass, rubber and other table grinding and polishing. Widely used in automobile, steel, building materials, shipping, aviation, wood,  plastic , leather and other industries.  
 
	We provide customers with the best surface treatment program, according to the actual needs of customers "tailored" a variety of specifications of sand pan, sand belt, sand carbon and emery cloth ring polishing products.  
 
	The company's flexible operating mechanism and all customer-centric concept, we in addition to provide you standardized, serialized products, but also according to your special requirements, for you to manufacture high-quality, personalized non-standard coated with abrasive products.  
 
 
 
	If you have any product requirements, you can contact us 
 
	E-Mail: greatabrasives01@126.com