In some processes, particularly paper processes, which are more easily bleached than film processes, the bleach and fixer can be combined into a single solution known as bleach-fix (also commonly known in trade jargon as a "blix" or a "bleach-fixer"). Some chemical synergy is achieved by mixing the two solutions; therefore, the concentration of each can be lowered slightly to achieve the same photographic effect. The gentle oxidizing action of the bleach component is insufficient to damage the fixer component; therefore, they are able to survive together for a reasonable period of time in a single solution. This single solution saves time in processing and simplifies the processing machine. It may also save money in shipping processing chemicals and may produce environmental benefits since it may result in less chemical usage. Bleach-fixes were first introduced commercially in the late 1960s for color paper, specifically for their environmental features as well as reduced processing steps. They remain as a predominant processing solution in color print processes today.
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