How to Prevent Breakage and Seam Mark in the Process of Cold Dyeing of Rayon Fabric?
The cold dyeing process of rayon fabric includes singeing, stacking, cleaning, tentering, cold pad-batch, finishing and so on. So we need to grasp the process conditions and processing points and prevent the fabric from breakage and seam mark. If we have select C type cold dyeing produced by Huntsman Corp, which has better effect, but the cost is higher. The fabric specification and process 1. Fabric specification 9.85 tex×9.85 tex，354pcs/l0 cm×346pcs/lO cm，l60 cm rayon fabric. 19.7 tex×19.7 tex, 394pcs/l0 cm×236pcs/l0 cm，160 cm Rayon fabric. 2. process Cloth suture inverting→singeing and rolling enzyme→piling(wet cropping roll and seal packing for 4-6h)→boiling and washing→tentering→cold dyeing ( dyeing agent )→soft tentering→shrinkproof 3. The preliminary treatment process conditions and controlling point 3.1 Singeing and rolling enzyme The burner for singeing is one positive and one objective. The padder speed is 100～110 m/min. Rolling enzyme receipt/(g.L-1) Amylase ...