The present invention is directed to compositions, methods and systems for the removal of starch. The methods include: providing cleaning solution and rinsing fluid along supply line(s); connecting the supply line(s) to one or more cleaning applicators positioned to apply the cleaning solution or the rinsing fluid to one or more surfaces of a starch applicator system; and providing a controller which is able to control application of the cleaning solution and the rinsing fluid through the one or more cleaning applicators. The systems include the components described in relation to the methods. The compositions include about 5 to 15% w/w alpha amylase to break down the starch into water-soluble units; and non-ionic surfactant(s) and/or solvent(s) to react at the interface of the starch and surface it is attached to as well as liquify the resins.

A method of removing a lens forming material deposited on a lens forming surface (1) of a reusable glass mold for forming ophthalmic lenses, in particular contact lenses or intraocular lenses, comprises the steps of providing a plasma (2), exposing the lens forming surface (1) of the reusable glass mold to the plasma (2) for removing the lens forming material deposited on the lens forming surface (1). The plasma (2) is generated under atmospheric pressure and potential-free, or is generated under reduced pressure.

The invention is generally a system for washing off residual resin from objects which are three-dimensionally (3D) printed through a vat polymerization (VP) process. Exemplary systems may include a solvent receptacle, a wash reservoir in fluid communication with the solvent receptacle, and a controller configured to pump a solvent from the solvent receptacle to the wash reservoir for washing off residual resin from a 3D-printed object. Exemplary methods may include pumping a first solution of a plurality of solvent solutions from the solvent receptacle to the wash reservoir, dispersing the first solution onto the 3D-printed object, pumping the first solution from the wash reservoir to the solvent receptacle, pumping a second solution of the plurality of solvent solutions from the solvent receptacle to the wash reservoir, and dispersing the second solution onto the 3D-printed object.

A roller-type applicator cleaning apparatus includes a lid, a housing, a water inlet valve, a base, a plurality of radial openings, and a central axis. The base includes a platform and an applicator holder. The lid, the housing, and the base are concentrically positioned along the central axis. The applicator holder is adjacently connected onto the platform and function as a storage space for the roller-type applicator. The plurality of radial openings laterally traverses through the applicator holder so that a flow of water can discharge into the applicator holder as the flow of water is entered into the housing through the water inlet. The lid and the base are oppositely positioned of each other about the housing and threadedly attached to the housing. The applicator holder is encircled by the housing so that the flow of water can fully engaged with the inserted applicator that needs to be cleaned.

The present invention is directed to compositions, methods and systems for the removal of starch. The methods include: providing cleaning solution and rinsing fluid along supply line(s); connecting the supply line(s) to one or more cleaning applicators positioned to apply the cleaning solution or the rinsing fluid to one or more surfaces of a starch applicator system; and providing a controller which is able to control application of the cleaning solution and the rinsing fluid through the one or more cleaning applicators. The systems include the components described in relation to the methods. The compositions include about 5 to 15% w/w alpha amylase to break down the starch into water-soluble units; and non- ionic surfactant(s) and/or solvent(s) to react at the interface of the starch and surface it is attached to as well as liquefy the resins.

The present invention is directed to compositions, methods and systems for the removal of starch. The methods include: providing cleaning solution and rinsing fluid along supply line(s); connecting the supply line(s) to one or more cleaning applicators positioned to apply the cleaning solution or the rinsing fluid to one or more surfaces of a starch applicator system; and providing a controller which is able to control application of the cleaning solution and the rinsing fluid through the one or more cleaning applicators. The systems include the components described in relation to the methods. The compositions include about 5 to 15% w/w alpha amylase to break down the starch into water-soluble units; and non-ionic surfactant(s) and/or solvent(s) to react at the interface of the starch and surface it is attached to as well as liquify the resins.

A cleaning liquid composition is provided. More particularly, a cleaning liquid composition includes a transition metal compound represented by Chemical Formula 1 (see the detailed description of the present invention); and a hydrocarbon-based solvent, and a cleaning method of a polymerization apparatus using the same.

A cleaning apparatus for concentration controller of coating machine may include a pulse bubble generator and a container used for cleaning a concentration controller of a coating machine and a tube thereof. The pulse bubble generator has a bubble-generating end connected to the container through a pipe, and the container is filled with a plentiful detergent. The pulse bubble generator is configured to pump air into the detergent with a pulse per time, and a large amount of detergent bubbles are adapted to be generated in the container. The detergent bubbles are configured to be pumped by the concentration controller into the tube and the concentration controller so as to complete cleaning effect of the tube and the concentration controller.

The present invention provides method and apparatus for removing a sealant from a surface. More specifically the present invention provides methods an apparatus for efficiently and consistently removing polysulfide sealant from a surface on an aluminum airplane wing without damaging the wing.

The present disclosure provides a method of flushing a reactor used in the production of linear alpha olefins, including flushing reactor equipment with toluene from a solvent source, wherein the reactor contains by-products from the production of the linear alpha olefins, wherein the by-products include a polymeric material. The flushed toluene containing polymeric material is directed into a separation train containing the linear alpha olefins, wherein the polymeric material is soluble in at least one of the linear alpha olefins. The linear alpha olefins can be separated from the toluene and the toluene is recycled to the solvent source.