摘要:
An apparatus for the application of atomized fluid to a web material having a first surface and a second surface opposed thereto is disclosed. The apparatus is provided with a fluid source disposed adjacent to the first surface of the web material and a receipt plenum disposed adjacent to the second surface of the web material. The receipt plenum provides a source of negative pressure to the second surface of the web material. A fluid disposed from the fluid source contacts the first surface of the web material and is caused to traverse therethrough by the source of negative pressure. A portion of the fluid contacting the first surface of the web material is contained by the receipt plenum.
摘要:
A device is known for heat treatment of permeable webs of goods with a housing in which at least one screen roller is mounted and a pumping device is associated endwise with the roller, said pumping device drawing a processing medium in the formal of a vapor and/or gas out of the screen roller, with the through-flow area of the roller, in other words the working width of the screen roller, being capable of being determined by a width-adjusting device on the screen roller. A screen roller of this kind is improved according to the invention ifa) at least in the area covered by the web of goods, it has two coaxially mounted permeable screen roller jackets located with a distance between them,b) a width-adjusting device is provided between the outer and inner screen roller jackets, said devicec) being adjustable by a spindle on the axis of the screen roller, andd) the inner screen roller jacket is made permeable only in the area that corresponds to the minimum working width of the roller.A design of this kind is suitable for large differences in working width and also for smaller screen roller diameters without resulting in non-uniform processing over the working width.
摘要:
Disclosed is a continuous process of non-compressively and uniformly applying a liquid saturant throughout a permeable sheet. The process includes the steps of: 1) providing a continuously advancing permeable sheet having a first surface and a second surface, 2) depositing a substantially laminar flowing curtain of a liquid saturant generally across and onto the first surface of the continuously advancing permeable sheet, 3) applying a vacuum to the second surface of the continuously advancing permeable sheet, and 4) drawing a substantial portion of the liquid saturant through the permeable sheet to generate a substantially uniform distribution of liquid saturant throughout the permeable sheet. The process may also include the step of drying the liquid saturated permeable sheet. The dry bulk of the liquid saturant treated permeable sheet may be within about 15 percent of the dry bulk of an identical untreated permeable sheet. Also disclosed is a non-compressively and uniformly liquid saturant treated permeable sheet and an apparatus for non-compressively and uniformly applying a liquid saturant throughout a permeable sheet.
摘要:
The procedure for impregnating a woven or non-woven, knit, fiber sheet with an aqueous liquid, in particular of the kind containing a treatment agent, is characterized in that it consists of: (i) depositing the sheet 6 on a liquid-permeable, endless cloth 4, (ii) pouring by gravity the liquid in the form of a curtain or lamina onto the sheet and transversely to the direction of advance of this sheet, (iii) generating by means of a vacuum slit 13 mounted underneath the cloth sufficient pressure drop that at least part of said liquid shall pass through the sheet, the rate of poured liquid as defined in relation to the weight of the sheet moving underneath said curtain exceeding a specific value beyond which the entrainment rate is a function of said pressure drop but independent of the amount poured so as to make possible homogeneous impregnation and easy control of the entrainment rate.
摘要:
A tube has a longitudinal slot extending over the entire working width of the apparatus, and at least one cover element is arranged on the side of the fabric web remote from the slotted tube. The cover element extends over the entire length of the slot, and also extends over a substantial portion of the path of the fabric web, immediately preceding the slot, and over another substantial portion of the path of the fabric web immediately following the slot. A guide surface for the fabric web is provided on the same side of the web as the slotted tube, which surface forms with the cover element a flow space for conducting the working fluid, which flow space extends from a point in the path of travel of the fabric web lying substantially ahead of the slot to a point in the path of the web lying substantially beyond the slot.
摘要:
In an arrangement for the continuous treatment, especially washing, of spread out liquid permeable textile material in web form, several deflection cylinders, over which the material is conducted and at which liquid on the side of the textile material facing the deflection cylinders is pushed through the textile material, are provided in pairs close together but not touching each other, with the textile material in web form passing immediately from one deflection cylinder of the pair to the other. The deflection cylinder of each pair following the other in the web travel direction is being arranged lower than the preceding deflection cylinder of the pair, so that the textile material runs substantially vertically over a short section when passing from the preceding to the following deflection cylinder of each pair.
摘要:
An improved washer for removing impurities or other substances from a porous mat disposed over a vacuum head. As disclosed, in connection with an industrial paper making process, the porous mat is paper pulp and an elongate chamber, disposed axially above the drum, has a slot along its bottom with resilient downwardly extending skirts disposed around the edges of the slot. Water under pressure in the chamber is directed downward, and into the pulp mat. The resilient skirts prevent the wash water from flowing tangentially with respect to the mat so that the flow of water into the mat is essentially perpendicular to the mat. The chemicals within the mat are positively displaced by relatively clean wash water.
摘要:
An improved method for the treatment of a web material such as a textile, fleece or similar web which is continuously moving and is patterned by means of printing, dyeing or the like and the pattern fixed with remaining patterning and treating agents washed out thereafter, additional steps in which, after the fixing treatment and before the washing step, the web of material has applied to it a quantity of a rinsing liquid just sufficient to moisten the fibers of the web at their surface and the rinsing liquid immediately thereafter suctioned away are included in the process. Also disclosed is apparatus for carrying out the process.
摘要:
A method and associated apparatus are provided for scouring knit fabrics such as tricots the edge of which tend to curl. The web of material is fed onto a pair of running pin chains which engage the marginal edges of the material and carry it in a flat condition through a scouring station. Scouring liquid is delivered over the web by pressure sprays as well as sheets of liquid to remove oils and dirt. The pin chains then carry the web over a vacuum slot which removes most of the liquid from the center portion of the web. High pressure air jets are located along the path of travel of the web and positioned to direct high pressure air jets against the web edges to remove moisture therefrom. The web is then carried through a drying chamber using heated air and vapor mixture. Chemicals of various types can be applied with a high degree of penetration by the use of one or more suction boxes located at or after a chemical application station.
摘要:
A permeation system for permeating a wetting agent into fabric includes a fabric supply part; a permeation part provided with a permeation device and a height adjustment device; a drying part; and a collecting part for winding the fabric, which has passed through the drying part, around a collecting roll, thereby obtaining functional fabric of uniform quality and increasing productivity of the fabric into which the wetting agent is permeated. A method for manufacturing fabric includes adjusting the height of the permeation paddle contacting the fabric; supplying the fabric; supplying a wetting agent to be permeated into the fabric; rotating the permeation roller and the permeation paddle to permeate the wetting agent into the fabric; drying the fabric into which the wetting agent is permeated; and collecting the fabric.