Sustainable dyeing of cellulosic fabrics in textile mills
AssigneeOSM Shield
InventorMark Walker
Life of this patent
Estimating the term…
Abstract
A textile mill (100) includes a testing and recipe finalization station (104), pretreatment application machinery (106), dye application machinery (114), and a post-dye processing station (124). An associated process involves applying a pretreatment to the cellulosic fabric for cationizing the cellulosic fabric and applying a dye treatment to the cellulosic fabric. A recipe for the dyeing process includes a predetermined concentration of a cationizing agent of the pretreatment based at least in part on a desired concentration of the dyeing component. A two-stage drying and curing process for the pretreatment and other processing equipment and parameters are also described that ensure a high-quality dyeing process with reduced environmental impacts.
Claims31
A method for use in dyeing cellulosic fabric, comprising:
- establishing a dyeing process for said cellulosic fabric including applying a pretreatment to said cellulosic fabric for cationizing said cellulosic fabric, said pretreatment including a cationizing agent, and applying a dye treatment to said cellulosic fabric, said dye treatment including a dye component;
- selecting a nominal recipe for said dyeing process including a predetermined concentration of said cationizing agent based at least in part on a desired concentration of said dye component to be applied to said cellulosic fabric;
- first providing said pretreatment in accordance with said nominal recipe;
- first applying said pretreatment to said cellulosic fabric;
- second providing said dye treatment;
- and
- second applying said dye treatment to said cellulosic fabric.
A fabric manufactured by the process of any of the preceding claims.
A textile product manufactured by the process of any of the preceding claims.
A method for use in processing a textile product, comprising:
- providing a base fabric;
- first applying a pretreatment to said base fabric, said pretreatment effective to reduce an environmental impact associated with dyeing said base fabric;
- second applying a dye to said base fabric;
- processing said base fabric to ensure even distribution of said dye across said base fabric;
- transporting said base fabric to a drying machine;
- and
- drying said base fabric, at said drying machine having a fabric drying interface, using a two-stage drying process including a first stage where a first drying airflow is provided to said base fabric via one or more first ports extending continuously across a majority of a width of said fabric drying interface, and a second stage where a second drying airflow is provided to said base fabric via one or more second ports, each said second port extending across only a minority of a width of said fabric drying interface.
A drying machine for drying a dyed textile product produced by applying a pretreatment to a base fabric for reducing an environmental impact of dyeing said base fabric and applying a dye to said base fabric, said drying machine comprising:
- a first stage where a first drying airflow is provided via one or more first ports, each said first port extending continuously across a majority of a width of a fabric drying interface of said drying machine;
- a second stage where a second drying airflow is provided via one or more second ports, each said second port extending across only a minority of a width of said fabric drying interface;
- and
- a fabric drive for moving said base fabric in a first direction through said drying machine between said first stage and said second stage, wherein said width of said fabric drying interface is measured in a second direction transverse to said first direction.
Dependencies are inferred from the claim text.