Open-width knitted fabric pre-shrinking machine and pre-shrinking process thereof

Abstract

The invention discloses an open-width knitted fabric pre-shrinking machine, comprising an open-width cloth-feeding device, a mechanical weft-straightening device, a steam conditioning and stentering device, a rubber blanket pre-shrinking device and an open-width plaiting device, wherein the front end of the steam conditioning and stentering device is provided with an overfeed pinning device; and a felt finishing device is arranged between the rubber blanket pre-shrinking device. The open-width knitted fabric pre-shrinking machine comprises the felt finishing device; and the fabric is finished by the felt finishing device after passing through the rubber blanket pre-shrinking device, thereby guaranteeing the fabric to be dried and flatten, further improving handfeel of the fabric and increasing glossiness of the fabric surface. Meanwhile, shrinkage rate of the fabric can be more stable, so that the open-width knitted fabric with flat cloth surface, good surface glossiness, good handfeel and stable shrinkage rate can be processed.

Description

technical field [0001] The invention relates to the field of printing and dyeing equipment, in particular to an open-width knitting pre-shrinking machine and a pre-shrinking process thereof. Background technique [0002] In the dyeing and finishing production of the textile industry, after the open-width knitted fabric has undergone multiple dyeing and finishing processes, a certain amount of internal stress is formed, resulting in unstable fiber structure and shrinkage in the weft direction. Stress, the finished product will produce a lot of shrinkage after washing, and it usually needs to be pre-shrunk by a flat-width knitting pre-shrinking machine to achieve the purpose of shrink-proofing. The open-width knitting pre-shrinking machine in the prior art includes a wide-width cloth feeding device, a mechanical weft trimming device, a steam feeding wet tentering device, a woolen blanket preshrinking device and a flat width cloth dropping device, and a steam feeding wet tenter...

AI Technical Summary

Problems solved by technology

The steam injection area in the steam width direction of the wet tenter device designed by this structure is constant. If the width of the fabric is small, part of the steam injected from the steam exhaust pipe will be injected out of the fabric, resulting in waste of steam. , the smaller the width of the fabric, the more steam is wasted

The waste of steam will greatly increase the production cost of the factory

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