Automatic load-bearing contact device for color fastness to saliva test based on hot air circulation system temperature control

Abstract

The invention discloses an automatic load bearing contact device for testing color fastness based on hot air circulation system temperature control. The automatic load bearing contact device is characterized by comprising a base plate and a temperature preservation shell, wherein the base plate in the temperature preservation shell is provided with an automatic load bearing testing mechanism which is composed of an objective detection platform and a panel-type testing weight capable of lifting or being pressed and put on the platform; the objective detection platform moves horizontally by the control of a horizontal air cylinder and can be pushed out by a starting-closing door at the other side of the temperature preservation shell; circulation hot air ducts are configured at the upper end of the temperature preservation shell and the lower part of the base plate, and hot air inlets and hot air outlets are respectively formed in the temperature preservation shell and the base plate; the temperature preservation shell is internally provided with a temperature sensor. The automatic load bearing contact device has the extinguished characteristics that circulation hot is utilized for keeping the constant temperature in a testing cavity; the whole process is nearly not affected by the external environment temperature; the stability and reliability of the whole detection method are improved; the device can be widely applied to the detection analysis process of the color fastness in industries of textile, papermaking and the like.

Description

technical field [0001] The invention relates to color fastness testing equipment, in particular to an automatic load-bearing contact device for color fastness testing based on the temperature control of a hot air circulation system, which can be used for constant-temperature load-bearing for the color fastness to saliva of mouth-contact products such as textiles or cigarette tipping paper. Contact 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 firmly attached, it may ca...

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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