Title:
拭き取り溶液の製造および使用済拭き取り溶液の処理の方法
Document Type and Number:
Japanese Patent JP4035593
Kind Code:
B2
Abstract:
The method for making a fresh cleaning fluid for a copper-plate printing machine. It involves using softened water, sulphonated ricin oil and caustic soda in proportions of 98.5 per cent, 1 per cent and 0.5 per cent respectively. After the fluid has been used it is subjected to ultrafiltration, producing a clear solution and a concentrated solution. The clear solution is recycled and the concentrated solution is flocculated to give solid residues and a filtered solution, the latter being neutralised, evaporated and distilled. The distilled water is used to make fresh solution, and the contaminated concentrated solution is used to make dry solid salts and a filtrate used for flocculation. The flocculant is made with the addition of calcium chloride and ferrous chloride, and the neutralisation is performed by hydrochloric acid with or without sulphuric acid.
Inventors:
Faust Giori
Application Number:
JP34868896A
Publication Date:
January 23, 2008
Filing Date:
December 26, 1996
Export Citation:
Assignee:
Carveyor-The Orient Society Anonym
International Classes:
C02F9/00; B41F35/00; C02F1/52
Domestic Patent References:
| JP7290053A | ||||
| JP3131384A | ||||
| JP50159872A | ||||
| JP6198287A |
Attorney, Agent or Firm:
Takashi Ishida
Yoshio Yoshio
Toshio Toda
Masaya Nishiyama
Yoshio Yoshio
Toshio Toda
Masaya Nishiyama