摘要:
To bring together nonwovens or webs of textile fibres, the adjacent webs or similar are transported jointly by means of rollers. The adjacent webs (7, 8) are compressed (10.36). The widest compressed web is then slightly extended lengthwise, because the downstream roller rotates at a higher speed than the compression roller.
摘要:
Bei dem Verfahren zum Herstellen von Mineralfaserplatten, bei dem mit einem Bindemittel benetzte Mineralfasern zur Bildung einer Mineralfaserlage auf einer Fördereinrichtung deponiert werden, um sie einem Durchlaufofen zuzuführen, während der Förderung vor dem Durchlaufofen die Mineralfaserlage in ihrer Dicke vorkomprimiert und anschließend in ihrer Länge durch wechselseitiges Ausbauchen gefaltet wird, die Mineralfasern der Mineralfaserlage verfilzt werden, und dann die Mineralfaserlage in ihrer Dicke derart komprimiert wird, daß sie nach der Aushärtung eine praktisch ebene Oberfläche aufweist, wird die Mineralfaserlage gezielt bereichsweise verfilzt, indem bei einer auf die Mineralfasern aufgebbaren Kraft in dem zu verfilzenden Bereich die Vertikalkomponente der Kraft maximiert wird.
摘要:
A process for feeding out a primary web of mineral wool onto a receiving conveyor. For this purpose, a pendulum conveyor has been used. In order to achieve good quality and the desired capacity the primary web must be thin and output rate high, which causes problems in fixing the primary web into the already fed out web and in looping the edges of the fed out web. According to the invention, these problems have been solved by making the trajectory and rate of motion of the output end (10) of the receiving conveyor (2) to comprise a central portion (B1) with a constant speed, which equals or is close to the output rate of the primary web, and an outmost portion (B2) having a retarding or accelerating speed, respectively. By this means the output end may move close to the receiving conveyor and be rapidly fixed into the bed while the pendulum allows appropriate space in the extreme positions for the edge loop, which also is rapidly fixed into the bed and forms an even edge. The invention relates also to a device for carrying out the process.
摘要:
A multicomponent fibrous nonwoven structure is obtained by a process for forming nonwoven materials using a forming chamber in conjunction with multiple fiber sources and a forming surface to create multicomponent nonwoven materials with varying features. The materials so produced are suitable for use in a wide variety of applications including personal care products such as diapers, feminine pads and adult incontinence products. Apparatuses for making this structure and carrying out the process are also disclosed.
摘要:
A seamless non-woven fabric containing chopped fibers for reinforcing and stabilizing V-belts is produced by impregnating the fabric with first and second solvent solutions and expanding the width of the non-woven fabric to reorient the chopped fibers during their solvated state such that a high percentage remain perpendicular to the length of the fabric.