Yaa Orbit Of Seam Applied Scientific Discipline To Growth The Seam Line Yesteryear Controlling Dissimilar Parameters (Part-2)

Scope of Seam Engineering to Increase the Seam Strength yesteryear Controlling Different Parameters (Part-2)

Authors: MD. Momenur Rahman,
Kazi Mustafijur Rahman,

Rabeya Siddiqua
Atish Dipankar University of Science together with Technology
Dhaka, People's Republic of Bangladesh

Previous Part

Seam Strength Test
Seam strength is the strength of seam assembly inward a garment. It is a role of the strength of the thread used for the seam, type of seam assembly inward a garment together with type of stuff used amid other factors.

Determination of Seam Strength
In a lab CRE type tensile testing machines such equally INSTRON is used earlier testing the samples are prepared. The method is called Grab Test.

If the specimens are from manufactured items such equally garment together with hence 5 specimens are cutting having a length of 270 mm on either side of the stitch trouble together with a width of 100 mm parallel to the stitch line.

If the specimens are prepared from stuff together with hence seam strength is measured inward warp, weft together with bias directions. In such cases swatches are cutting inward these iii directions.

The effect of needle temperature on dissimilar size needle influence auto speed or SPM (Stitch per Minute). That effect the strength of seam.

Methodology

Considering Factors

Main

Seam degree
GSM
Sewing thread
Stitch type (301 Lockstitch or 401 Chainstitch)
Thread size
Stitch Per Inch
Stitch Per Minute

Partial

breaking strength
breaking elongation
deformation energy.

Estimating Seam Strength
Below are ii formulas that were developed for estimating the seam strength on woven fabrics.

To create the calculations, y'all request to know the following:

Stitch type (301 Lockstitch or 401 Chainstitch)
Thread Strength (Single-end breaking strength of the thread, measured inward pounds)
Stitches per inch

Determination of seam strength inward Laboratory

(ASTM 1683-04 Standard Procedure)

Significance of the attempt out

Determines the seam efficiency of a specified seam assembly amongst each fabric.
If a decision cannot last made equally to which seam is the best suited for a item fabric, all should last evaluated.
Used to create upwardly one's take away heed either the sewn seam strength of textiles or the efficiency of a seam assembly amongst whatsoever given fabric.
Additionally, the seam strengths of dissimilar fabrics tin last compared straight yesteryear using i of the criterion seam assemblies specified because electrical flow data almost laboratory precision is incomplete, comparative tests may last advisable.

Relevant champaign of attempt out application

This attempt out method is applicable whenever a decision of effective sewn seam strength, that is, the optimum seam interaction, is required.
The breaking forcefulness of the seam together with stuff volition permit decision of seam efficiency.
This attempt out method tin assist inward determining optimum seam interaction for whatsoever given stuff yesteryear comparison the properties of the stuff amongst together with without seams.
Seam technology scientific discipline techniques for specific stuff types tin too last determined yesteryear utilizing this attempt out method.

Prospected utilization of the attempt out

This attempt out method tin last used to create upwardly one's take away heed when the sewn seam is affected yesteryear seam slippage.
While the ultimate outcome of this phenomenon is rupture, seam slippage greater than either the values stated inward client specifications, or equally agreed upon yesteryear purchaser/supplier may severely trim down the integrity such that the production cannot last used for its intended purpose.
(An representative of a unremarkably used seam slippage value is half dozen ± 1 mm [0.25 ± 0.04 in.]).