What Is Drying in Textiles? | REEL TRİKO
Drying is the controlled removal of moisture remaining in textile products after washing, finishing or other wet-processing operations.
In textile production, the purpose of drying is not simply to remove water. It is also important to preserve the structure, dimensions, surface appearance and suitability of the product for the following production stages.
The drying method is selected according to the fabric or knitted structure, fibre composition, moisture level and the next production process.
Particularly with knitwear products, excessive heat or uncontrolled tension can affect the shape of the garment. For this reason, drying conditions must be adapted to the characteristics of the product.
Types of Textile Drying
Removing all moisture using heat alone can require considerable energy.
For this reason, excess water is generally reduced mechanically whenever possible before thermal drying is applied.
Moisture can be present in textile materials in several forms:
Free or dripping water
Surface water
Capillary water
Swelling water retained within fibres
Hygroscopic moisture
The amount and form of moisture are important when selecting the most appropriate drying method.
What Is Pre-Drying?
Pre-drying is the removal of excess water that can be separated mechanically before the main thermal drying stage.
The objective is to reduce the amount of moisture in the product and therefore lower the energy required during subsequent drying.
Common pre-drying methods include:
Squeezing
Centrifugal extraction
Suction or vacuum extraction
The appropriate method should be selected according to the structure of the textile product.
What Is Thermal Drying?
Thermal drying is the process of evaporating and removing the remaining moisture using heat energy.
During this process, heat is transferred to the textile while moisture is transferred from the material to the surrounding environment.
Textile drying systems can generally be classified as:
Convective drying
Contact drying
Radiant drying
High-frequency or dielectric drying
Convective Drying
Convective drying uses hot air or another heated gas that comes into contact with the moist textile material.
Heat is transferred to the product while moisture evaporates and is removed by the airflow.
Passing controlled hot air across or through the textile structure can increase drying efficiency.
What Is a Stenter?
A stenter is an important textile machine used for drying as well as controlling fabric width, dimensions and surface characteristics.
The fabric is held along both edges by pins or clips and transported through heated drying zones.
This enables controlled adjustment of fabric width, tension and drying conditions.
Conveyor-Belt and Air-Cushion Dryers
In conveyor dryers, textile materials are transported through the machine on a perforated or air-permeable belt.
Because the product can be dried without excessive longitudinal or transverse tension, these systems can be useful for sensitive and elastic textile structures.
Air-cushion systems use controlled airflow to support and dry the textile with reduced mechanical stress.
Contact Drying
Contact drying works by bringing the textile surface into direct contact with a heated surface or cylinder.
Heat passes directly from the hot surface to the textile, allowing moisture to evaporate.
Cylinder dryers are common examples of contact drying equipment.
What Is Hot-Flue Drying?
Hot-flue drying is a convective drying method in which the textile passes through a chamber with circulating hot air.
The moisture evaporates as the fabric comes into contact with the heated airflow.
Hot-flue systems can be used after certain dyeing, printing and finishing processes.
IR Infrared Drying
IR drying transfers energy to the textile surface through electromagnetic radiation.
When infrared energy is absorbed by the material, it is converted into heat and supports moisture evaporation.
IR systems can be used in certain printing, dyeing and rapid-drying applications.
High-Frequency Drying
High-frequency drying uses an electromagnetic field to generate heat through the movement of polar water molecules within the product.
This method can help remove moisture more uniformly from inside the textile structure.
Factors to Consider During Drying
When selecting a drying method, the following should be evaluated together:
Fibre and yarn structure
Knitted or woven construction
Moisture level
Heat sensitivity
Width and length dimensions
Desired hand feel and surface appearance
Subsequent production stages
Especially in elastic knitwear structures, excessive heat or tension can alter the shape of the garment.
REEL TRİKO | Production and Final Inspection
REEL TRİKO follows different production stages in a coordinated manner, from yarn selection and knitting to garment manufacturing and final inspection.
Once production is completed, products pass through our ironing, packaging and quality control processes before shipment.
