Yarn Quality Improvement with an Air–jet Attachment in Cone Winder

Project Title -25

Yarn Quality Improvement with an Air–jet Attachment in Cone Winder

Principal Investigator

K.P. Chellamani

Cost

Rs.27.90 lakhs

Date of Commencement

Feb 1999

Duration

24 Months

Date of completion

Jan 2001

Abstract

The report deals with a comprehensive study conducted at SITRA towards developing a mechanism by means of which hairs in cone yarn could be reduced. SITRA has designed and fabricated a “CON-HAIR” System, which can be installed in any conventional cone winder. The influence of SITRA’s “CON-HAIR” System on hairiness in cone yarns has been investigated for cotton – carded and combed and polyester blended yarns. The relation between hair length and the extent of hairiness reduction while using the “CONE-HAIR” System was studied. The attainable level of imperfections in cone yarns while using the “CONE-HAIR” System was also evaluated.

Highlights

§ While using SITRA’s “CON-HAIR” System in cone winder, yarn hairiness gets reduced by 60 to 75% for carded counts and 50 to 65% for combed yarns. In the case of polyester blended yarns, hairiness reduction due to the “CON-HAIR” System is of the order of 30 to 35% as compared to yarns wound without “CON-HAIR” System.

§ Hairiness reduction using “CO-HAIR” System during winding is found to be relatively more for hairs of longer length(6 – 10mm) as compared to that of shorter length (3 – 6mm).

§ SITRA’s “CON-HAIR” System helps to maintain imperfections in cone yarn more or less at the same level as that in ring yarns.

§ Yarn twist and its variation and tensile properties do not get influenced due to “CON-HAIR” system during winding.

Area of applicability

Spinners

Target beneficiaries

· The study findings were disseminated to SITRA member mills

· Mills are finding the new attachment useful as an economical method to produce wound yarns with less hairiness

Status

Completed

Project Title -25	Yarn Quality Improvement with an Air–jet Attachment in Cone Winder
Principal Investigator	K.P. Chellamani
Cost	Rs.27.90 lakhs
Date of Commencement	Feb 1999
Duration	24 Months
Date of completion	Jan 2001
Abstract	The report deals with a comprehensive study conducted at SITRA towards developing a mechanism by means of which hairs in cone yarn could be reduced. SITRA has designed and fabricated a “CON-HAIR” System, which can be installed in any conventional cone winder. The influence of SITRA’s “CON-HAIR” System on hairiness in cone yarns has been investigated for cotton – carded and combed and polyester blended yarns. The relation between hair length and the extent of hairiness reduction while using the “CONE-HAIR” System was studied. The attainable level of imperfections in cone yarns while using the “CONE-HAIR” System was also evaluated.
Highlights	§ While using SITRA’s “CON-HAIR” System in cone winder, yarn hairiness gets reduced by 60 to 75% for carded counts and 50 to 65% for combed yarns. In the case of polyester blended yarns, hairiness reduction due to the “CON-HAIR” System is of the order of 30 to 35% as compared to yarns wound without “CON-HAIR” System. § Hairiness reduction using “CO-HAIR” System during winding is found to be relatively more for hairs of longer length(6 – 10mm) as compared to that of shorter length (3 – 6mm). § SITRA’s “CON-HAIR” System helps to maintain imperfections in cone yarn more or less at the same level as that in ring yarns. § Yarn twist and its variation and tensile properties do not get influenced due to “CON-HAIR” system during winding.
Area of applicability	Spinners
Target beneficiaries	· The study findings were disseminated to SITRA member mills · Mills are finding the new attachment useful as an economical method to produce wound yarns with less hairiness
Status	Completed