Dezhou Huarui Machinery Equipment Co., Ltd. is a professional manufacturer of woven bag packaging equipment, producing over 10,000 woven bag processing machines annually. Their products are exported to more than 20 countries and regions around the world. The company has evolved from manufacturing woven bag machines and cutting sewing machines to becoming a modern enterprise that integrates product development, machine and part manufacturing, quality control, and after-sales service.
Fault phenomenon 1: Bleeding
Causes: (1) The edges of printed graphics are immersed in color, mainly due to the selection of dyes in the ink. (2) Improper use of pigments or rancid ink. (3) Excessive use of diluents, especially when the diluent is not compatible with the ink.
Solutions: (1) Add gold oil or coupling agent to the ink. (2) Use solvent-based pigments (such as alcohol solvents) or replace the ink. (3) Reduce the amount of diluent used, and ensure that the solvent is compatible with the ink.
Fault phenomenon 2: Residual odor on the product
Causes: The residual odor in the printed image is mainly caused by poor ink formulation, raw materials with an odor, or ink degradation leading to an unpleasant smell.
Solutions: Avoid using inks containing odorous materials if possible. If necessary, add a fragrance (masking agent) to the ink to prevent impurities from entering. Pay attention to the solubility and compatibility of mixed solvents with resins during ink production and storage. Store the ink in a cool and well-ventilated warehouse.
For more exciting content about woven bag printing machines, visit Dezhou Huarui Machinery Equipment Co., Ltd. We welcome your feedback and look forward to your cooperation.
Visit us at http://www.dezhouhuarui.com for more information.
Touch screen Heat deflection temperature and Vicat Softening Point Tester
Heat deflection temperature (HDT) and Vicat softening temperature testing is critical to determining the quality and performance of polymers.
HDT and Vicat temperatures are critical properties for measuring the quality and performance of high-performance polymers:
- The HDT test for plastics measures the temperature where deformation occurs under a specified load;
- The Vicat apparatus test measures the softening temperature of a material.
Touch Screen Vicat Softening Point Tester,Deformation Tester Vicat,Thermal Deformation Test Machine,Thermal Deformation Vicat Tester
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