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Interpretation of the Anti - Friction and Color Fastness Test Method for Leather

Shoes with leather friction fastness method summarized into three kinds of reciprocating wool felt friction leather; reciprocating white lining cloth friction leather; fixed point rotating wool felt friction leather. Rotary wool felt friction method is with the diversification of shoe design, multi-block splicing shoes more and more, in the shoes can not get enough long sample, and to detect the end-use of shoes adaptability, Taken by. However, the results of the friction test of rotary and reciprocating wool felt are not consistent and the method to be used in the Leather Color Fastness test results. 

Reciprocating wool felt rubbing the leather method to maintain the continuity of quality control, so that the raw material leather to make shoes leather using a relatively consistent test method, the results are comparable. Currently using more.Dry wipe: the use of the sample face up, into the sample folder should be stretched, not wrinkle. The specimen holder is clamped and placed in the long hole (long hole length 100mm, width 30mm) of the instrument base and the felt, and the specimen holder is fixed by the screws on the long hole of the instrument base.

         

The lining of the lining of the friction head wrapped in the end, and with the spring will be fixed in the friction head of the spring slot. Place the friction head wrapped in the lining into the base.Start the instrument after 25 reciprocating, stop, remove the lining.Will be transferred from the leather surface to the lining of the color depth and 5.2 of the gray card to compare, to visually determine the level.Judgment using the light source: the natural light of the north window. Wet friction operation: should be dry rub in the adjacent parts of the wet wipe.The number of friction for 20 reciprocating.The lining is wetted with distilled water as specified in Section 5.4, and its sediment content is 70% to 75%.Wet cloth after lining should be placed in the backlight, often dry in the air after the natural dry, and then gray card.According to the provisions of 7.1.5 to determine.Note: Allow the entire leather to be tested at the section specified in section 61.

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