Circular immersion-cleaning method for carpet printing and immersion-cleaning equipment

Abstract

The invention relates to a circular immersion-cleaning method for a carpet printing and a piece of immersion-cleaning equipment. At present, a method used for removing a thickener on the suede of a carpet is unscientific and not good for energy conservation and environmental protection. The method disclosed by the invention orderly comprises a printing procedure of printing a colour paste on the suede of a carpet, a fixation procedure of fixing the carpet printed with the colour paste, and a circular immersion-cleaning procedure, which is characterized in that: the circular immersion-cleaning procedure orderly comprises a surface thickener-removing step, an immersion-cleaning step and a dehydration step; in the surface thickener-removing step, a part of a thickener on the suede of a carpet is removed; in the immersion-cleaning step, the carpet is immersed in immersion solution for at least 5 seconds; and in the dehydration step, the flocculates on the suede of the carpet and the immersion solution are removed to obtain an immersion-cleaned printed carpet. The immersion-cleaning equipment disclosed by the invention comprises a frame, a previous thickener-removing device, a water trough, an after thickener-removing device, a carpet charge roller, a carpet discharge roller, a roller I and a roller II, wherein the previous thickener-removing device and the after thickener-removing device are installed on the frame. The circular immersion-cleaning method for a carpet printing and the immersion-cleaning equipment disclosed by the invention are simple in operation, energy-saving, environment-friendly, and high in resource utilization rate.

Description

technical field [0001] The invention relates to a carpet printing cycle dipping method and dipping equipment. During the carpet printing process, the thickener distributed on the carpet is removed by the dipping equipment, which belongs to the one-step method used in the carpet printing process and the A device used in the carpet printing process. Background technique [0002] The color paste that is used for printing on the carpet is mainly made up of thickener and dyestuff, and wherein, thickener is mainly made up of polyacrylate, such as open date is on February 12th, 1992, and publication number is in the Chinese patent of CN1058599, Disclosed is a method for preparing a thickener for water-based emulsion. The thickener prepared by the method can thicken aqueous systems such as pigment printing paste and carpet glue. Under normal circumstances, the viscosity of the thickener in the color paste is generally around 300cps. During the carpet printing process, the printer s...

AI Technical Summary

Problems solved by technology

[0003] Since the thickening agent adhered to the carpet suede surface is usually rinsed away by washing with clear water at present, there are the following disadvantages in adopting this method to remove the thickener on the carpet suede surface: 1. The consumption of water is large, and on the one hand it increases On the other hand, it has caused a waste of water resources, making it difficult for water resources to be fully and rationally utilized. For example, under normal circumstances, the amount of clear water required for flushing the thickener adhered to the carpet suede is 2 -5 tons / hour, calculated according to the equipment running 20 hours a day, the daily water consumption is about 60-100 tons

2. The thickener on the pile surface of the carpet is washed with clean water and dissolved in water to form waste water or is directly discarded after being absorbed, so that the thickener cannot be recycled, which increases the consumption of the thickener and increases the production cost , resulting in a waste of resources, usually, the thickener in the color paste accounts for 60%-70% by weight, which greatly reduces the utilization rate of the thickener

3. After washing the thickener on the carpet suede with clean water, the thickener on the carpet suede dissolves in water to form wastewater. The BOD and COD indicators of the wastewater are far high, far from environmental protection Requirements, under normal circumstances, the BOD and COD of the wastewater are about 6000 mg / L. Due to the large amount of discharge of the wastewater, if the wastewater is directly discharged into the environment, the pollution to the environment will be great, and it will cause great harm to the local environment. If the wastewater is treated first and then discharged, the cost of wastewater treatment will be very high, which will not only increase the cost of the carpet printing process, but also increase the workload, resulting in a waste of manpower and material resources. waste

[0004] To sum up, in the process of carpet printing, the current methods used to remove the thickener on the carpet suede are not scientific enough, which is not conducive to energy saving and environmental protection, but also increases production costs, increases workload, and makes resources difficult to obtain full and effective use

Images