Reason of using single shot- Sizing in textile industry

Reason of using single shot (or One shot) sizing chemical for high-speed looms


SIZING of textiles is the process of coating or impregnating warp yarns with a polymer that improves the efficiency of the weaving operation. The polymer is usually made up of material that could be of natural origin, synthetic or a mixture of both

The basic objectives for spun warp yarn sizing is two side:

• Protect the yarn from breakage during weaving.

• Decrease the hairiness so that the tendency for adjacent warp yarns to entangle will be reduced.

Single shot use only one chemical where Starch + Softner+ Resin binder+ Pick Up are mixed and But in  Traditional sizing chemical use all chemical as  manually.

Examples of Single Shot
  texSIZE -FN - for finer side
  texSIZE -MD for medium side

Single shot ( one-shot ) non- starch based synthetic sizing agents are gaining increasing acceptance by the industry due to their superior economics and efficiency as compared to traditional sizing chemicals.

Sizing is the first step in wet processing of textiles and it has to be done well to avoid problems in subsequent steps of processing
The warp yarn undergoes a number of stresses and strains during the process of sizing and weaving of which the following ones are mostly encountered:

• Various bending forces
• Dynamic tension
• Frictional forces
• Development of static ( electricity )
The ability to overcome the above challenges completely rests on the efficiency of the sizing chemical used. It is noticed that commonly used sizing chemicals usually lead to the following problems:
• Weaving looms do not reach constant weaving efficiency
• Film of the sized yarn gets broken easily leading to significant dusting
• De-sizing of sized fabric requires costly specialty chemicals and results in high water consumption
• The entire process from sizing, weaving and de- sizing consumes more time leading to low productivity
• Results in high cost for effluent treatment due to larger discharge.
The following properties are expected to be contributed by a robust single shot sizing chemical to fulfill current needs of the industry.

Sizing operations
• Low liquor pickup
• Stable viscosity over prolonged storage
• No skinning
• High warp yardage
• Yarn strength
• Low hairiness
• High and uniform residual stretch
• Cross yarn free passage
• Easier dry splitting
• Less dusting

Weaving operations
• High and constant weaving efficiency
• Less dusting

De-sizing operations
• Readily washed out by hot water without additional chemicals
• High process reliability ( uniform results after de-sizing )

The sizing chemical which meets the above requirements at acceptable cost is the need of the industry today.
The incorrect assumption that no single sizing chemical will meet the above requirements for compatibility with different types of yarn has led the industry to use complicated and varied mixtures of sizing materials which include starch, starch derivatives, PVA, acrylics, resins, CMC and lubricants with no appreciable increase in efficiency for weaving fine count yarns.

It is only in the past few years that non-starch synthetic sizes have been accepted in the industry as a comprehensive solution to emerging requirements by the


M-PLAST

M-PLAST
                  single shot size. SINGLE SHOT SOLUTION” . It’s a concentrated formulation in powder form which contains all necessary components for a complete balanced sizing .

It has an added features of “Abrasion resistance”, “Adhesion to cotton & synthetic fibers ,“provides flexibility /elongation” & sufficient strength to yarn for better weaving at higher speed looms.

M plast is specifically tailored for clients, having variants such as
             M-Plast,
             M-plast U
             M-plast E

 Link:-https://www.matangiexim.com/product/m-plast/

Source:- matangiexim.com