Visualization system in supercritical carbon dioxide dyeing device

Abstract

The invention discloses a visualization system in a supercritical carbon dioxide dyeing device, which comprises the following working principles of: obtaining the concentration, speed, temperature, pressure and image information of carbon dioxide in a dye kettle and a dying kettle by a sensor and a camera; introducing data into a database and displaying the image information by a display screen in real time; processing the data in the database and displaying the data by the display screen in real time; observing whether the surfaces of fabrics are covered with partial dye in the dying kettle by the display screen, if so, introducing carbon dioxide into the system to sufficiently dissolve the dye, in addition, when the dying temperature and the pressure reach standard, discovering no dye residues in the dying kettle by the display screenand observing whether the dye is attached to the fabrics in the dying kettle or not at the same time, if no, stopping running the whole supercritical dying system in advance. The visualization system has simple structure, is convenient to produce and install and is suitable for being widely popularized in the supercritical carbon-dioxide dying system.

Description

technical field [0001] The invention relates to a supercritical carbon dioxide dyeing system, in particular to a visualization system in a supercritical carbon dioxide dyeing device. Background technique [0002] In recent years, countries all over the world are devoting themselves to the research of anhydrous dyeing technology. With the rapid development of modern science and technology, supercritical fluid technology is increasingly valued by many countries in the world, and is gradually applied to many industries such as chemical industry, biology, medicine, environmental protection, cosmetics, hygiene, food, printing and dyeing, and new materials. [0003] Such as patent application number: 200510047767.0, name: process patent of supercritical carbon dioxide dyeing, and patent application number: 200520093701.0, name: dyeing kettle in supercritical carbon dioxide dyeing device, all describe in this dyeing device, the supercritical process of dissolving dye The critical ...

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Problems solved by technology

In previous experiments, after an experiment cycle was completed, dye adhesion on the surface of the fabric was found when the dyeing kettle was opened. This was usually because the flow rate of supercritical carbon dioxide was too low, so that the dye could not be fully dissolved in the supercritical carbon dioxide fluid. The dye still carries the remaining dyes into the dyeing still, so that the dye sticks to the surface of the fabric in the dyeing still, so it is necessary to continue to increase the supercritical carbon dioxide flow rate to ensure that the dye is fully dissolved in the supercritical carbon dioxide fluid, and at the same time To ensure the concentration of dye dissolution (such as fully dissolving but the problem of insufficient coloring of the fabric due to too low concentration), this requires a large number of multiple experiments, and an experiment cycle often takes dozens of hours. Caused a waste of time and also caused a lot of waste of dyes and fabrics

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