IR Dyeing Machine?

IR Dyeing Machine -Temperature range: 40.135 C or higher, accuracy +/-1t, gradient at 3t/min up to 135C ring or cooling speed: 0.5 — 3.5 *C / min . Control accuracy: 0.5 *C-1*C
peed: 10— 50 rpm (adjustable) Dyeing eaker : 180-200m1, 450-500 ml, 1000-1200m1

Can test the length, strength, fineness, color and moisture, color characteristics and trash particle content in cotton ,able to determine fineness and maturity properties of fiber Determine fiber length and tensile properties
Automatic Color Tray or increased sampling for higher throughput
Dual Sampler for increased sampling for higher throughput
Data acquistion system ust include Standard Calibration Materials
Micronaire Measured by relating airflow resistance Maturity, Calculated using algorithm itl’I Length, Upper Halt Mean Length, Uniformity Index, Short Fiber Index Measured optically in a tapered fiber beard which is automatically prepared, Strength and elongation, measured physically by clamping a fiber bundle between 2 pairs of clamps at known distance Moisture content, using conductive moisture probe (Color, Rd (Whiteness), +b (Yellowness), color grade, measured optically by different color
Trash, Particle count. % surface area covered by trash, measured optically by utilizing a digital camera ;Calculation of spinnability of cotton. Read about Pilot-scale Garment Dyeing Machine

Fabric Odor-

Definition and Causes – IR Dyeing Machine

This is a common problem and it is mainly due to one or a combination of the following:

The use of certain chemicals in the dyeing process such as Carriers in the dyeing of Polyester fabrics at low temperatures The over-use of neutralizing chemicals such as Acetic Acid or Sodium Thiosulfate The use of incorrect softeners .The use of incorrect Anti-Odor and Wicking chemicals

Preventive Suggestions

The use of correct dyeing and finishing procedures and considering all technical aspects of the used chemicals are essential .The use of Carrier based chemicals needs to be avoided. This chemical not only creates offensive odors on the fabric but it is also known to adversely affect the environment. The neutralizing chemicals used during the dyeing process need to be thoroughly rinsed.

Corrective Measures

  • In most cases a prolonged exposure to air will remove the odor.
  • In more severe cases a high temperature scour will be necessary.

Yarn Related Defects /Problems:


Definition and Causes

This is the formation of tiny balls of fiber on the surface of the fabric caused by frictional forces.It is normally attributed to the low twist factors in the yarn. Low twist levels create protruding fibers from the yarn, particularly when short staple fibers are used.Spinning methods also play a roll. Air jet spinning produces less protruding fibers than open-end spinning.

Other factors can also be considered. Such as the use of different fiber staple lengths in blended polyester cotton and nylon cotton yarns(having different tensile strengths) where pilled cotton components that are formed are held on to the surface by the stronger synthetic fiber and can not easily and naturally be removed.

Preventive Suggestions

Based on the end-use, yarns with correct twist factor and fiber lengths must be used.Attentions must also be paid to methods of dyeing and finishing to ensure correct procedures are employed (fabric rotation speed, water levels, dye load size, etc.).The use of fiber to fiber and fiber to metal lubricants is strongly recommended.

Corrective Measures -IR Dyeing Machine

Most of the pills can be removed by washing the fabric with a mild solution of Enzyme at high temperatures. Using excessive amounts of enzyme, however, may result in changing the color or weakening of the spandex yarns.  In severe cases a light brushing and/or sueding may be an alternative.