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How to Choose a Fabric Preshrinking Machine
Time:2026-01-07
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When choosing a fabric pre shrinking machine, it is necessary to comprehensively evaluate factors such as fabric characteristics, production requirements, equipment performance, and cost-effectiveness to ensure dimensional stability and improve efficiency. The following provides selection references from key dimensions.
1. Fabric type and pre shrinking requirements are the basis for selection
Pre shrinking machines need to be adapted to specific fabric characteristics, such as cotton fabrics, polyester cotton blends, or cylindrical knitted fabrics. Different materials are sensitive to mechanical pressure and wet heat treatment methods; For example, damping pre shrinking machines are specifically designed for thin elastic knitted fabrics (such as cotton wool ribbed fabrics), and the pre shrinking rate is controlled by adjusting the line speed difference, while rubber blanket pre shrinking machines are more suitable for woven fabrics, with a maximum pre shrinking rate of up to 18%. The requirement for pre shrinkage rate directly affects equipment selection. If high precision is required (such as shrinkage rate less than 2%), priority should be given to models with intelligent PID temperature control and tension adjustment. The production scale and automation level should match the needs of the enterprise. Integrated equipment should be selected for large-scale continuous production, and its automation system (such as PLC controller, touch screen operation) supports working speed adjustment from 0-40m/min, and is linked with the shaping machine and code cutting machine to improve efficiency; Small and medium-sized enterprises can choose compact and simple machine models, which have a small footprint, low energy consumption, and are suitable for flexible production. The degree of automation also affects labor costs. Intelligent models reduce manual intervention through cylinder drive and sensors, but the initial investment is relatively high.
2. Technical performance and energy efficiency optimization are core considerations
The key technical parameters include temperature control accuracy (within ± 1 ℃ fluctuation of the intelligent PID system), overfeeding expansion capability, and cold air shaping device, which directly affect the uniformity of pre shrinking; For example, steam optimization systems can reduce resin volatile emissions and meet environmental requirements. In terms of energy efficiency, intelligent temperature control significantly saves energy compared to traditional modes, prolongs the lifespan of electric heating tubes, and reduces long-term operating costs.
3. Cost effectiveness and maintenance convenience require long-term evaluation
The initial investment and operating costs need to be balanced. Simple models have low purchase costs but limited processing capacity, while high-end models have high pre shrinkage rates (such as pre shrinkage rates of 0-25%) but higher prices. In terms of maintenance convenience, the equipment should be designed with automatic water replenishment and carpet sorting mechanisms to reduce downtime; Supplier technical support and accessory supply also affect maintenance efficiency.
4. Application scenarios and supplier support cannot be ignored
The equipment needs to be adapted to existing production lines (such as continuous pad dyeing ends) and take into account customized services provided by suppliers, such as loose fabric devices for special fabrics (such as four-way stretch fabrics) to avoid wrinkles and improve flatness. The technical strength and after-sales service network of suppliers directly affect the stability and upgrading of equipment.
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