Low-shrinkage sandwich production process

The invention relates to a low-shrinkage sandwich production process, and belongs to the field of warp knitted fabrics. The process comprises the following steps of weaving a low-shrinkage polyester raw material into a gray fabric, releasing internal stress of the gray fabric, pre-shaping the gray fabric, dyeing the gray fabric in a high-temperature and high-pressure environment, stretching and dehydrating the dyed gray fabric, shrinking the dehydrated gray fabric to release the internal stress, and finally customizing the gray fabric to obtain a finished fabric. The process has the effect of reducing the shrinkage rate of the sandwich fabric. 本申请涉及一种低缩率三明治生产工艺，属于经编针织布的领域，其包括以下步骤：将低缩涤纶原料织为坯布，释放坯布内应力，对坯布进行预定型，将坯布在高温高压环境下进行染色，染色后的坯布进行拉伸脱水，脱水后的坯布进行收缩释放内应力，最后对坯布进行成定制得成品面料。本申请具有降低三明治面料缩水率的效果。