Dyeing factory do silicone soft finishing applications and solutions to common problems

　　Dyeing factory do silicone soft finishing applications and solutions to common problems1 basic questions:Cotton fabric pretreatment when it usually takes a high concentration of alkali treatment to remove fabric impurities (especially mercerizing alkali dosage is bigger), alkali into the interior of the fibre is not easy to wash and dye VAT dye (activity) when also want to alkaline, so after finishing cloth may be alkaline.And chemical fiber fabric are through reductive cleaning after the dyeing, the dyeing factory still use insurance powder and caustic washing, if behind cleaning not clean, can also cause on the soft cloth with alkali.And ordinary silicone oil is not alkali resistance, in alkaline conditions will demulsification, this is the factory was in a soft pad by sticking in the aftermath of the thousands of meters.So soft cloth must wash before alkali agent or join acetate in working liquid, maintain groove PH5-6Condensation of 2 questions:On contain short fiber fabric (cotton, T/R fabric, velvet class), inevitably there will be some in the process of machining staple fell off, cloth fell from the staple accumulated in the groove, and common cohesive silicone oil, as the finishing liquid uplink to roll, and squeezed the silicone oil emulsion breaking the stick together, forming roll coating or silicone.And water quality is poorer, also can produce glue roller, and general silicone oil condensation in addition wool fabric will also exist in similar circumstances, to do a good job of cleaning before driving, find flower hair clean up at any time.3 charge stability:Dyes, brightener used mostly for anionic, cotton and cotton whitening basic is done on the setting machine.Additional dyeing cloth when light is wrong need to fine tune the color, repairing color usually when the soft finishing agent on the additional small dye or paint, and factories use normal general silicone oil (weak cationic) will produce charge attract reaction of Yin and Yang, cause condensation and sticky roller, and anion silicone oil feel softness and can not meet the requirements, cause confusion of the factory.In the processing charge consistency must be considered.4 temperature problem:Cotton long car dyeing the cloth through drying drum drying, large package or heap in cloth box, if not fully cooling, especially in large volumes cloth, in the soft fabric surface temperature may be higher, the cause of groove working liquid temperature (especially in summer), sometimes to 60 ℃ above, and ordinary silicone oil can cause sticking when heat resistance is not good.Finalize the design the speed problem:Factory when doing some thin fabrics, finalize the design speed is very fast, sometimes can achieve the speed of 60 m/min, general silicone oil, because of poor permeability caused by silicone oil on the roll back, caused by the glue roller.Pay attention to change the working liquid in the groove, diligent brush rollWith six cylinder problem:Dipping soft, many factories are doing ordinary silicone oil will stick to a cylinder wall, time is long, the cylinder wall can form some black oil stain, stick to a silicone oil spot is formed on the cloth.Strengthen the cleaning job7 handle problemsBecause now in the market for fabric handle demand is higher and higher, and all kinds of fabrics with different season, different customer requirements, need to show a variety of different styles, have asked lubricious feeling quite, smooth and bright, soft soft, pure elastic and so on.A silicone oil normally only reflect a kind of style.To use a lot of kinds of silicone oil, thus caused a lot of factory production more confusion, sometimes can not find suitable for customer requirements of silicone oil, can only give up the business, causing damage.We can choose different ammonia value different amino silicone oil terminal base control the molecular weight and molecular distribution to ammonia value of viscosity and there are differences between the reaction of amino silicone oil to meet the requirements of the various kinds of fiber on soft smooth elastic8 cost problemFor dyeing confused now the biggest problem is cost, due to the water, electricity, gasoline prices are rising, while printing and dyeing processing fee is reduced, cause a lot of dyeing factory busy year, basic no profits, so the cost control is the dyeing factory to solve the problem.Finishing agent cost is a big dyeing factory, so the cost of finishing agents reduce dyeing is an urgent need to solve the problem.9 yellowing problemHot yellow:In running a long time of outage fabric stranded yellowing and amino silicone oil amine hydrogen is easy to form chromophores oxidation by air oxidation, and yellow.Products to brown, brown make the white fabric looks like lost the most basic of white or yellow simply.When the pH is too high, the drying temperature is too high of cotton fabrics with material turn yellow.To strengthen the process control.Storage yellowing.Pollution caused by gas storage10 fluorescent degradation:Anionic whitening agent/cationic softener ion interactions between condensation occurs, should be divided into two processGreen: brightener is sensitive to acid or whitening agent, should choose acid fluorescence and white agent.Light damage: fluorescent whitening agent with poor light fastness and light effect that fabric to brown, choose the fluorescence and white agentWater quality impact: microbes, algae and other impurity content is too high, precipitation to noise can be filtered