Sample Rapier Loom
What is Sample Rapier Loom?

What is Sample Rapier Loom? Weaving Related Defects

Sample Rapier Loom

Sample Rapier Loom – aim materials: Cotton, Polyester Cotton, Kevlar, Carbon, Glass, Jute or similar. Read also  Semi Automatic Sample Loom

Sample Rapier Loom

  • orking width: 500 mm or more
  • $0.4er of frames: 22 or higher
  • Shedding system: Dobby (electronic)
  • Speed of machine:70 PPM or higher
  • Weft stop motion
  • Electronic let off and take up
  • Well insertion: Rigid Rapier
  • Weft Color Selectors: Electronic Controlled (4)
  • All parts / accessories required to make machine operational on site
  • Additional accessories:
  • Frames up to 24 frames
  • Frame motion is pneumatic shedding

Methods:

This factory use to produce carpet by the loom. The producer fulfill their work, they are also modified the the hand loom. But the process of carpet produce is the same in the shuttle loom.

This loom uses one shuttle to produce one color of carpet. To produce different design and color use to multi shuttle. This loom treadle levers are control by the leg. This loom use maximum 10 heald frame. This loom use threads (TC) yarn to work heald eye.

This loom has big flinch to protect the warp thread selvedge. Also use long ring pipe to produce loop carpet design. After produce loop formation design then cut the loop head to produce a new design (terry towel).  This loom has no picking stick or rod because the workers are control pick by hand.

Weaving Related Defects/Problems

Mill Bars-

Definition and Causes:

A slight variation in the speed of the shuttles or other devices that carry the yarns and their traverse action sometimes create weft yarns (across the width of the fabric) of different lengths and tensions.

This is commonly referred to as Mill Bars.

During the dyeing process the uptake of dye in these areas will be different and causes lighter or darker shade bands to appear on the fabric.

Preventive Suggestions:

Monitoring the speed and controlling the tension of the weft yarns are essential and an important part of the weaving process.

Corrective Measures:

For this problem no corrective measures are available.

Warp Lines-

Definition and Causes:

During the Warping process yarns are wound on beams at regular and measured intervals and pre-determined spaces.

A slight discrepancy in these pre-set spaces causes vertical lines to appear along the length of the fabric and parallel to the selvedges.

Preventive Suggestions:

Correct and precise warping is always a critical and important part of the weaving process and needs to be closely monitored.

Corrective Measures:

For this problem no corrective measures are available.

Holes-

Definition and Causes:

Most holes which occur during the knitting process are a result of what is known as “Drop stitch”.

This Drop stitch is normally caused by the sudden dis-engagement of the needle at the knitting zone. The causes are:

Yarn’s dry condition where in certain cases it can produce static charges causing the yarn to be repelled and thus miss the needle,

The malfunction of the Positive feed system which supplies the yarn to the knitting elements at a steady and controlled rate, and

Excessive yarn slubs and thick and thin places.

Preventive Suggestions:

Regular maintenance and upkeep of the machine are essential. The condition of yarns also needs to be evaluated.

Corrective Measures: For this problem there are no corrective measures are available

About Engr. Kh. Mashiur Rahman

He is Top Class Digital Marketing Expert in bd based on Google Yahoo Alexa Moz analytics reports. He is open source ERP Implementation Expert for RMG Industry. He is certified IT Professional from Aptech, NCC, New Horizons & Post Graduated from London Metropolitan University (External) in ICT . To Hire his service and Him Email- [email protected], Cell# +880 1792525354

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