An automatic weight-bearing contact device for color fastness testing based on temperature control in a closed environment

Abstract

An automatic load-bearing contact device for color fastness testing based on temperature control in a closed environment, characterized in that it includes a bottom plate and a heat-insulating shell, and an automatic load-bearing testing mechanism is arranged on the bottom plate located in the cavity of the heat-insulating shell. The translation load detection platform is composed of flat test weights. The flat test weights are controlled to move up and down by lifting cylinders arranged on the bottom plates on both sides of the load detection platform. The load detection platform is controlled by horizontal cylinders to move horizontally. An electric heating plate is arranged on the inside of the top and the bottom plate in the heat-insulation shell, and a temperature sensor is arranged in the cavity of the heat-insulation shell. The outstanding feature of the present invention is: heating is carried out by the heating plate installed inside the device, and the test sample is heated by the heat conduction of the ambient air in the heat preservation shell, so as to realize the constant temperature and load-bearing contact process in the detection of color fastness to saliva, which can be widely used Analysis and determination of color fastness to saliva in textile, paper and other industries.

Description

technical field [0001] The invention relates to an automatic constant temperature and constant pressure device, in particular to an automatic load-bearing contact device for color fastness testing based on temperature control in a closed environment, which can be used for constant temperature and load-bearing contact for the color fastness to saliva of mouth-contact products such as textiles or cigarette tipping paper. Testing process. Background technique [0002] Color fastness refers to the resistance of the color of an item to various effects during processing and use, and reflects the firmness of the colorant on the item. Colorfastness to saliva is mainly applicable to items that are used or are expected to come into contact with the oral cavity during daily use, such as toys, textiles and napkins. The color fastness to saliva is one of the important indicators to measure the quality of this kind of daily necessities. If the colorant on this kind of product is not firm...

AI Technical Summary

Problems solved by technology

[0004] In the current technology, there is a commercially available test frame for the color fastness of textiles to saliva. A certain pressure is applied by a weight, and the temperature is controlled in an oven. The temperature cannot be controlled, and the automatic timing and automatic cancellation of pressure are not available.

At present, there is no special device on the market, which can realize constant temperature heating of the test sample under constant pressure and automatic timing during the test of color fastness to saliva, and stop heating and pressure after the time is up

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