There are oil-soluble and water-soluble dirt on the clothes. Another sector of solid particle dirt is adsorbed on the fabric through oil stains. Accept dry cleaning agent washing as usual can remove the oil and solid dirt on the fabric, but can not remove the water-soluble dirt. To remove the water-soluble dirt, you can not add water, otherwise it will bring the flaw of washing (such as shrinkage, etc.). How should such a contradictory problem be solved?
The solubilization process can remove the water-soluble dirt without bringing the flaw of washing.
The solubilization process is actually the addition of surfactants in the dry cleaning agent. The surfactant forms an inverse capsule in the solvent to make the hydrophilic group inward and the oleophilic group outward, so that the water can be solubilized in the solvent and the ability to remove hydrophilic dirt is improved. As long as the dry cleaning operation is held at 75% relative humidity, hydrophilic dirt can be usefully removed. If the relative humidity exceeds 80%, water will precipitate in the solvent in the form of emulsion, affecting the dry cleaning effect. Of course, for the rest of the dry cleaning agent and the rest of the washing concentration should accept the rest of the water.
【1】There are several ways to control the moisture content as follows.
①, by measuring the conductivity of the solvent.
②、Indirectly measuring the moisture content.
③、Ratio the external active agent to the moisture response.
④、Adding it to the dry cleaning agent.
【2】In order to improve the washing quality of dry cleaning, exercise the solubilization process to add the outside active agent into the dry cleaning agent, which can basically play four kinds of roles.
①、Enhance the ability of solvent to penetrate the fabric.
②、Promote the solid dirt to come off from the fabric.
③、Water is solubilized in, thus promoting the removal of water-soluble dirt.
④、Stop making the fabric yellowing.
