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The composition reveals to reveal cladding welding mask, concentrate composition and process for coating reveals reveal not exposed solder mask
The composition reveals to reveal cladding welding mask, concentrate composition and process for coating reveals reveal not exposed solder mask
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机译:成分显示显露熔覆焊接面罩,浓缩液成分和涂覆工艺显示显露未暴露的阻焊层
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摘要
The present specification describes an aqueous developer composition which can develop solvent developable photosensitive materials and comprises a surfactant, a terpene and water, in defined proportions. In a preferred form, the composition includes about 0.5-10% by wt. of a surfactant, and about 0.2-10% by wt. of a terpene, the rest being water. Most preferably, the composition comprises about 3-6% by wt. of a surfactant, and about 4-8% by wt. of a terpene, the rest being water. The surfactant is preferably a non-ionic surfactant or mixture thereof, and the terpene is d-limonene. A concentrate formulation also is provided herein from which the aqueous developer composition may be made by dilution with water, usually in an amount of about five to ten times of the concentrate.
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