The process of coating the fabric with a layer of wax is known as waxing. Waxing is done for water repellency.
Types of Waxes:
MC Wax. (Microcrystalline Wax)
Types of Waxing Process:
Kiss Waxing: Waxing is done only on one side of the fabric with a truff roller setup.
Normal Waxing: Waxing is done by dipping the fabric in the truff i.e., both sides of the fabric are coated with wax.
The action of Chemicals:
Vegetable Wax: Water Repellency.
Aluminum Super Gel: To create Jelly texture.
ZnO: To break the Jelly substance created.
China Clay: Filling agent.
Anti-Fungal Agent: Antifungal Behavior.
Rice Bran Oil: Acts as Thinner.
Wax temperature: wax is melted at 150oC.
Calendaring roller temperature: 110oC.
Machine Speed: Based on GSM.
Effect of Speed on Waxed Fabric GSM:
In the case of Kiss waxing with an increase in speed GSM increases. As the Roller speed increases add-on increases.
In the case of Normal Waxing with an increase in speed, GSM decreases, As the speed increases contact time decreases so that pickup decreases and GSM decreases.
For Waxing there will be no MLR, but the recipe is done based on addon percentage.
Add-On % = (Final GSM – Base GSM) X 100 / Base GSM.
Zones in waxing machine.
Feed Zone: Fabric is fed in open from.
Waxing Zone: Waxing is done at this zone.
Drying/Calendaring Zone: Here Waxed fabric is dried or heat set.
Delivery Zone: Waxed Fabric is delivered in open width form.
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