丝印测试标准及方法

丝印测试标准及方法集团文件版本号：（M928-T898-M248-WU2669-I2896-DQ586-M1988）

95%酒精，当然是工业酒精，医用酒精浓度一般为75%。

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5.2.5 耐醇性

工具:95%酒精，白棉布.?

测试要求: 漆膜来回摩擦 200 次;丝印来回摩擦 30 次.?

样品数量:至少 3 个样品.?

检测方法:?

1) 用浸润 95%酒精的白棉布来回地磨擦表面,压力为 5N 左右.?

2) 白棉布擦干,肉眼观察表面.?

3) 外观合格样品室温放置至少 2h,按 5.2.2 测试附着力.?

评判标准:?

1) 漆膜关键部位无起泡、脱落、变色，普通部位允许轻微起泡、变色.

2) 丝印层不可脱落、缺口断线、起泡，允许轻微变色但图案清晰可辨.?

3) 附着力合格.?

5.2.5 Alcohol resistance

Tools: 95% alcohol, white cotton cloth.?

Testing requirements: 200 cycles for painting, 30 cycles for silkscreen.?

Sample amount: At least three samples.?

Testing Method:

1) To rub back and forth with soaked 95% alcohol white cotton cloth by 5N force on the surface.?

2) Wipe with white cotton cloth, examine surface.?

?

Acceptable criteria:?

1) Key positions of painting without blistering, peeling, discoloration, general positions allow slight blistering,? slight discoloration;?

2) Silkscreen without peeling, gap break, blistering, allowing

a slight discoloration but clear;?

3) Adhesion qualified.