Air knife spraying and sizing device and method for digital printing pretreatment of high-pile fabric

Abstract

The invention relates to an air knife spraying and sizing device and method for digital printing pretreatment of a high-pile fabric. The air knife spraying and sizing device for digital printing pretreatment of the high-pile fabric comprises a rack, a cloth guide roller mechanism and an air knife spraying mechanism, wherein the cloth guide roller mechanism is mounted on the rack and is used for guiding and conveying the fabric; the air knife spraying mechanism is positioned above the cloth guide roller mechanism and is used for spraying white paste to the fabric; the air knife spraying mechanism comprises a size vat, a paste supply pump, an air knife and an air knife lifting mechanism; the size vat is used for containing the white paste and is installed on the rack; the air knife is arranged on the rack in a manner of being capable of lifting up and down through the air knife lifting mechanism; and the paste supply pump is used for conveying the white paste in the size vat into the air knife. When the air knife spraying and sizing device is used for conducting sizing pretreatment on the high-pile fabric, on the premise of not pressing down the pile, the surface of the fabric can be evenly provided with 30 percent to 80 percent of white paste, so that a good foundation is provided for subsequent ink-jet digital printing.

Description

technical field [0001] The invention relates to the technical field of fabric digital printing, in particular to an air knife spraying and sizing device and method for pretreatment of high-pile fabric digital printing. Background technique [0002] The fabric needs to be treated with sizing before digital printing. The purpose of sizing is to make the surface of the fabric evenly covered with a layer of size, to prevent the dye from seeping, to ensure the accuracy of the printed pattern, and to meet the needs of the dye for color development. At present, the pre-sizing methods for plush fabric products mainly include padding method, screen printing sizing method and dipping method. The purpose of all three methods is to make the fabric with a certain amount of size before printing. The padding method and the leaching method basically belong to the same category, and are basically used for any slurry. The screen printing sizing method is only suitable for viscous slurry. T...

AI Technical Summary

Problems solved by technology

However, for high-pile fabrics and fabrics with a higher grammage, such as high-pile Raschel blankets, when the above-mentioned three sizing pre-treatment methods are used to pre-treat high-pile Raschel blankets, the fluff will be overwhelmed. , that is, one piece of fluff is pressed on top of another fluff, layer by layer. In this case, ink is printed. During the pressure seepage process, the slurry will flow with ink from the head of one fluff to the head of another fluff. The penetration effect will be very bad

[0003] Therefore, it is necessary to develop an air knife spray sizing device and method for high-pile fabric digital printing pretreatment to solve the problem of poor sizing permeability of high-pile fabrics

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