Dust-free paper (Airlaid Paper), also called dry paper nonwovens (Airlaid?pulp?nonwovens), is a kind of dry nonwovens. Dustless paper has unique physical properties, manifested as high elasticity, softness, feel, drape excellent, with very high water absorption and good water retention properties, is widely used in hygiene care products, special medical supplies, industrial wiping supplies and other fields.
Overview
(1) Dust-free paper (AirlaidPaper) is divided into M-3, 0604, 0606, 0609, 0709 and other series, also called dry paper nonwovens (Airlaidpulpnonwovens), which is a kind of dry nonwovens. Dustless paper has unique physical properties, manifested as high elasticity, softness, feel, drape excellent, with very high water absorption and good water retention properties, is widely used in hygiene care products, special medical supplies, industrial wiping supplies and other fields.
(2) by its English name can be seen from the two main features of the dust-free paper: one is the raw material for wood pulp fiber; the second is the use of airflow into the network technology. The production process of nonwovens is mainly the two processes of netting and reinforcement. Dry paper nonwoven production mainly uses chemical bonding and thermal bonding two methods. According to its reinforcement process is different, its raw materials and uses are different, the following are introduced.
One Dentsu dust-free wiping paper uses:
(1) semiconductor production line chips, microprocessors, semiconductor assembly lines, disk drives, composite materials, LCD display products, circuit board production lines, precision instruments, optical products, the aerospace industry, PCB products, medical equipment, laboratories, clean rooms and production lines and other high-precision manufacturing.
Optional sealing:
(1) Ultrasonic, laser, cold cutting.
One Dentsu dust-free paper applicable scope:
(1) semiconductor assembly, aviation manufacturing and maintenance, laboratories, electronics industry, computer assembly, optical instrument manufacturing, LCD liquid crystal display, precision instruments, optical products, the aviation industry, and circuit board production lines, etc.; especially suitable for the semiconductor industry without, the electronic industry production of 10-10,000 purification plant. Excellent dust removal effect, with anti-static function, efficient water absorption, soft will not damage the surface of the object.
(2) It is especially suitable for dust-free purification workshop. The edges of dust free cloth, dust free wiping cloth, microfiber dust free cloth, microfiber wiping cloth are sealed by the most advanced edge-cutting machine, which will not leave particles and threads after wiping, and has strong ability to remove dirt. It can be sealed by fused edge sealing on two sides and heat sealing on the other two sides, or fused edge sealing on four sides, which can provide better edge protection.
One Dentsu dust-free paper use:
(1) 1. Semiconductor production line chips, microprocessors, etc.; 2. Semiconductor assembly line; 3. Disk drives, composite materials; 4. LCD display products; 5. Printed circuit boards production line; 6. Precision instruments; 7. Optical products; 8. Aerospace industry; 9. PCB products; 10. Medical equipment; 11. Laboratory Clean room and production line; 12. 13. Advertisement color printing publicity
Production
(1) Chemical bonding method
Chemical bonding method with 100% wood pulp fiber as raw material, open into a single-fiber state of the fiber by the airflow into the network, spray method of water-soluble adhesive sprayed onto the surface of the fiber network, and then baked and reinforced into a cloth. The main applications of the products are industrial wipes, feminine hygiene products, baby wipes, tablecloths, wet wipes and cooking cloths.
(2) Thermal bonding method
Thermal bonding method is mixed in the wood paddle fiber with hot melt fiber, the mixing ratio is generally not less than 15%, the airflow into the network, through the hot air or hot rolling to make the low melting point fibers in the fiber network melting fiber network reinforcement into a cloth. Thermobonded nonwoven fabrics are mainly used as absorbent cores for highly absorbent sanitary products and thin sanitary napkins for women because they do not contain chemical binders and have better fluffiness and hygroscopicity. Based on this use, some production lines are equipped with a system for applying highly absorbent resin (SAP) powder. Due to the addition of the high molecular absorbent resin, water is absorbed and turned into a solid substance, which greatly improves its water absorption capacity.
In summary, although dust-free paper is called paper, it is essentially a non-woven fabric.
Ichiden Dustless Paper Characteristics
(1) Excellent dust removal effect with anti-static function;
(2) Highly efficient water absorption;
(3) Soft and won't damage the surface of the object;
(4) Provides sufficient dry and wet strength;
(5) Low ion release;
(6) Not easy to cause chemical reactions.
(7) Excellent dust removal effect with anti-static function; Highly efficient water absorption, soft and won't damage the surface of the object; Provide enough dry and wet strength;
(8) Optional sealing edge: ultrasonic, cold cutting
(9) Dust-free cloth The edge of this product is sealed by the most advanced edge cutting machine, which won't leave particles and threads after wiping and has strong ability to remove dirt.
Development background
(1) in the early dustless paper did not go through the surface foam treatment, the phenomenon of falling hair and powder is serious, the production of the working environment is poor, and because of the thermal bonding of fibers at that time, the strength of the paper is far less than the dustless paper, so the market demand for a kind of dust rate of the same as the glued dustless paper paper paper, good strength, but also has a high super-absorbent performance of the same as the glue dustless paper products. Therefore, in order to take into account the advantages of both, we have developed dust-free paper products.
(2) dustless paper bonding: both the bonding of hot melt fibers, but also the surface of the latex bonding. Dustless paper raw materials used both latex, also use hot melt fibers, while according to the needs of the SAP can also be added to further improve the performance of liquid absorption. Differential characteristics of dust-free cloth and paper: The highest level of product loft, softness, wet and dry strength, liquid-absorbent properties, and appearance properties such as linting and dusting.
(3) the product market for dustless paper: the largest market is still a variety of absorbent products, such as women's sanitary napkins, sanitary pads, baby diapers and so on. However, similar to Kimberly-Clark Commercial Consumer Division's specially designed integrated dust-free paper can almost replace non-woven fabrics and be used for industrial purposes such as wet wipes and various wipes.
(4) At present in the country basically thermal bonded dustless paper and integrated dustless paper collectively referred to as thermal bonded dustless paper, purely without surface treatment of thermal bonded dustless paper has not seen.
(5) the above three most representative products derived from the dustless paper series of products is extremely wide, generally up to 50 kinds of more, basically all over the life of the paper in all areas. Combined with other new technologies, such as laminating technology, it can be processed into a composite paper of heat-laminated dustless paper + laminating film + laminating non-woven fabric + SAP, which can be used as ultra-thin sanitary napkins, sanitary pads and other products to directly face the consumers after simple cutting and embossing treatment.