发明名称 |
Acid cleanings and staining compositions |
摘要 |
Strong acid cleaning compositions supplemented with stable, protein-reactive staining dyes are provided which can be used for the acid clean-up of metallic food processing equipment while also giving a visual indication of residual soils on equipment surfaces. The compositions are provided as dilutable concentrates including water, a staining dye and at least about 5% by weight of a strong inorganic acid; the dye is stable in the concentrate under storage at 25 DEG C. for at least about 3 months. The concentrates are diluted in water at the point of use and in such form have a pH of up to about 4. The preferred concentrates of the invention include water, from about 10%-50% by weight of an acid mixture comprising phosphoric, sulfuric and nitric acids, and Acid Violet 19 dye.
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申请公布号 |
US5424000(A) |
申请公布日期 |
1995.06.13 |
申请号 |
US19930131661 |
申请日期 |
1993.10.05 |
申请人 |
WEST AGRO, INC. |
发明人 |
WINICOV, ELSIE L.;LENAHAN, ELIZABETH L.;GRIFFITH, MICHAEL W. |
分类号 |
C11D3/40;C11D7/08;(IPC1-7):C11D3/40;C11D7/60 |
主分类号 |
C11D3/40 |
代理机构 |
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地址 |
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