STRENGTH(Kg/c 38.19 seam slippage strength 2.34 TABLE NO.-6 0.8567 4.00 lubricant. Flexibility of the fabric is affected seam slippage too [12, 21]. Stitch and seam types which are not selected properly affect the sewing performance negatively. Experimental analysis on the effect of fabric structures and seam 0.16 2.11 695405.8881 2.1747 Get all latest content delivered straight to your inbox. As per description the equations 2. Seam types are shown as an alphanumeric designation relating to the essential characteristics of fabric positioning and rows of stitching in a seam. In the case of mechanical damage, the yarns of the fabric are broken or fragmented. 0.1010 AP-2-13 4.07 3.00 1 the seam, causing gaps or holes to develop. 274.00 Stitch types are shown as a numerical designation relating to the essential characteristics of the interlacing of sewing thread in a stitch. 7.19, Vs. Seam slippage strength You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. 1.603378 In general, the more thread consumed in a stitch, the stronger the seam. Connecting talent, textiles and technology, Building close relationships with our customers, Ensuring accountability, transparency and fairness, Find locations, telephone numbers and emails, Creating durable, attractive seams on a wide range of fabrics, Enhanced quality, reliability and durability, Technology, innovation and manufacturing capabilities, Industrial threads that enhance sewn product quality, Range of interlinings, reflective tapes, hook and loop fasteners, Unique proprietary metal-replacement technology, Range of fabrics including inherently flame-resistant, Building a better and more sustainable world, Eco-friendly sewing threads, yarns, zips and trims, Providing sustainable options to our customers, FTSE 250 constituent with global operations, Innovative, value-adding and premium product solutions, Jump to accessibility statement (accesskey 0). 7 A study observed that needle penetration force values in both the warp and weft direction of the plain woven fabrics were higher than twill woven fabrics because of the plain dense structure. 3 7.7373 However before rupturing there is an unacceptable opening in the seam which makes the seam 'failed' commercially even when there is no visible rupture. 3 Seam type FSc-1 is formed by turning and abutting the turned edges of two plies of material and seaming with a row of stitches extending across and covering the turned edges of the material. 4.85 There are different fit-types for garment items that range from the slim and form-fitting to oversized [5]. 7.80 Different types of stitches and different The standard range for a lockstitch is stitch length 2.5mm and stitch width 0. Different seam angles affect seam strength too. Fabric Sample No: A 5/8inch (1.5cm) seam allowance is generally considered a standard. We are a community of more than 103,000 authors and editors from 3,291 institutions spanning 160 countries, including Nobel Prize winners and some of the worlds most-cited researchers. 278.2560 Loops of needle thread are passed through the material and interlaced and interlooped with loops of bobbin thread. Y0=1.76*1.06X2------------(2.2), of exponential equation for cover factor(x2) vs. Seam 1.3 Seam and stitch types affect the quality and appearance of garments. 4.07 340.79331 Taking logarithm of both the sides with base 10 20.96 Further work:1. X=logXGC Physical and mechanical testing of textiles - ScienceDirect 8A + 23700.48B = 5.7200 4). 72.233001 Nylon and polyester threads melt at 240260C. This chapter is distributed under the terms of the Creative Commons Attribution 3.0 License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 5600.85 0.6096 0.36 0.11 equations according to fitting (1) was used to calculate the seam thickness [9, 10]. As per description the equations between (GSM*thickness) & seam slippage strength. R.V [03], In the present work, the quality of fabric samples was controlled, now the 7.3671 23.25 Journal of Engineering Sciences Vol. Six seam types are specified in the ASTM D 6193-97 Standard Practices for Stitches standard and eight seam types are specified in ISO 4916:1991 Textiles-Seam Types-Classification and Terminology standard. )(y0) to define seam slippage accurately as a function of different In general, increase in fabric extensibility leads to decrease in seam slippage load and seam strength in weft direction. 3.95 0.5966 Y*X 0.5966 92.75 The stitch width determines how far the stitch will go from side to side. 5.97 540.54837 COVER FACTOR(X2) VS SEAM SLIPPAGE coefficient If the penetration force did not exceed set level 75 cN, then the sewability value was zero, and sewability was considered to be very good. 4.70 Stitch 1012 per inch is considered normal for most quilting styles and yields the best stitch quality as well. Its the 'line' that is formed by sewing together The heat held by the needle is concentrated in a small mass of metal, and the temperature can reach 300350C. 10.00 Seam strength and seam efficiency should be tested to determine the effect of sewing parameters on sewing performance. 8000 10002.0001 X=logXGT 1.1035 4.70 0.6721 Y0=3.97*1.006XGT------------(5.2), of exponential equation for (GSM*thickness) (x1*x3) vs. Appearance and performance of the seams are dependent upon the stitch and seam types, stitch and seam parameters like stitch density, stitch width, seam allowance, stitch length, seam thickness, seam extensibility, seam strength, seam efficiency, sewing needle penetration force, sewing needle-related damage due to sewing and seam defects and damages. Resistance to slippage of yarns in woven fabrics can be measured according to ASTM D 434-75 Resistance to Slippage of Yarns in Woven Fabrics Using a Standard Seam standard [6]. 0.9004 18.83 0.6721 3. Seam damages affect seam performance by reducing seam strength. 16.78 18.83 6 4.07 2.8023 1.37 XGT2 This seam is referred to as a flat seam because the edges do not overlap one another, they will be butted together. STRENGTH(Kg/c 439.41126 21.55 Assuming log y0 = y , log a = a , log b = b , we have y =bx3 + a Seam and stitch types directly affect the quality, comfort and fitness of the garment. gives higher seam slippage strength .It is explained by the fact that TOTAL 29.877156 *Address all correspondence to: aycagur@uludag.edu.tr. 1192.55 1.1706 0.6314 that the thicker fabric shows higher seam slippage strength mostly It is critical to choose the correct sewing needle size for the correct sewing machine, sewing thread and fabric weight. By solving this above two 1. UNITED KINGDOM, Innovation in the Comfort of Intimate Apparel, Simulations of Yarn Unwinding from Packages. 6 1519.16 4.85 2.00 274.00 4.3318 The long stitch length, the fewer each inch, therefore the looser the seam. Different types of garments have different seam strength requirements. fabric, rpm of the machine, GSM of the fabric , 0.30 XGC 1.00 0.6857 As per description the equations The final observation table as per there thickness are considered as the input parameters. tension puckering (excessive sewing thread extension and recovery), feeding pucker (irregular feeding of fabric ply), and. -0.3905 9.00 If you do not allow these cookies then some or all of these services may not function properly. 4.70 of 0.956 (table no:- 6) which tells that fabric with higher GSM -0.6387 2359.31 4.70 Many factors affect the level of seam strength. Before conducting ASTM D1683, it is important to read the entire specification in the relevant ASTM publication. SEAM (5) was used to calculate the seam pucker percentage [24]. This seam class consists of one piece of fabric that is turned in on both edges. The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. No. Slippage - an overview | ScienceDirect Topics So one can avoid seam slippage by choosing lapped seam type while stitching. the sizing will occur during the agitation seam slippage are also discussed in detail. By:- Bharani M., Shiyamaladevi P.S.S. Increasing the number of the fabric plies leads to an increase in the needle temperature. Extensibility of the seamed fabric was defined as the difference in stitch length between the original stitch length S and the extended stitch length Slim. 2. 8.00 0.09 1.1896 Weft /CM2)(Y0) 3 Y0 insufficient tension on threads, or improper stitch Assuming log y0 = y , log a = a , logx2 = x , we have y =bx + a Seams are basic requirements in the manufacturing of garments. are different G.S.M.,cover factor,thickness value 0.3256 0.11 18.46 0.6096 3.276941769 Stitch type 500 has 22 different subgroups. 1.87 Seam efficiencies of 6080% are common, but efficiencies between 80 and 90% are more difficult obtaining from garment seams. by least square method are Log Y0 = log a + (x2)logb we get, m2)(Y0)) 7.80 The standard recommends at least one grip to be mounted on the grip with a universal joint in order to allow the grip to rotate in the plane of the specimen. Also the mechanical and structural properties of the according to fitting normal curve by least log Y0 = log a + blogX1 9.2 (Y0) Seam Types - Reference Guide to Different Seam Types | Coats - Coats 4.07 7.19 fabric, but may be adversely Assuming log y0 = y , log a = a , logxgt = x , we have y =bx + a X2 Increasing SPI is one of the most effective solution to avoid seam slippage. Also this paper reviews TO SEAM SLIPPAGE Seam Opening(mm) number ,thread tension unchanged, followed by Seam slippage strength(y0) With thread. was prepared with different woven structures like plain, twill, satin. ), chemical treatments of the fabric (softness, dyes, finishing, washing), sewing needle number, design and sewing machine settings [12]. SL. correlation. 8.00 7.11 As per description the equations 5 100.00 1.7427 Several empirical equations are developed for the prediction This not only depends upon the spaces in the fabric, but also on needle profile, needle size, sewing machine setting and sewing thread [21, 25]. 274.00 2359.31 By solving this above two According to AATCC 88B Smoothness of Seams in Fabrics after Repeated Home Laundering standard, seam appearance is classified into five grades: grade 1 refers to the worst fabric which is heavily puckered and grade 5 refers to smooth fabric with little pucker or no pucker at all. More complex types include various forms of piping, producing a raised line along the fabric surface. 5.47 4.078508225 Sometimes seam slippage occurs when the finished chemical, Y0 = 416.45X33 - 226.84X32 + 40.162X3 + 2.0721. The sewing damages can be occurred by high needle temperature, high pressure on pressure foot, unbalanced tension in sewing threads, irregular feeding system under the feed dog and sewing speed variation. 4. It is used in jeans meanufacture because of its strong construction. square method are Serging trouser panels, flys, facings, etc. 0.8567 A low. Usually we use fusing material to increase the strength of specific pattern like collar, cuff, etc. 0.0507 seam slippage strength 0.7757 150.00 This includes other popular methods of producing a neat edge like hemming and blind stitch hemming. 3.95 11.37568 100.01 Similarly we can use fusing material at the seam area so that threads will firmly forms stitches and seam will be strong enough to avoid slippage. 0.3298 Taking logarithm of both the sides with base 10 By solving this above two equation Whenever their is fabric with weak construction the seam becomes weaker and gets separate easily. Breakup of 0.8344 2.5mm stitch length means each stitch will be 2.5mm long. Seam strength refers to the force at which the stitch ends to tear or when the fabric breaks. Founder @TextilesPedia || The noun definition according to the online dictionary: 7.80 4.70 All information these cookies collect is aggregated and therefore anonymous. 0.191588 7.19 7.80 6 Yarn slippage depends upon a low number of warp or filling yarn, two shallow seam allowance, too tight a fit and improper seam construction. 1.4195 Y0=3.67*1.0001XGC------------(4.2), of exponential equation constants (series 1) for 5.97 In the 0.5527 3.95 0.37 Seams in modern mass-produced apparel, footwear, house hold textiles and sporting goods are sewn by industrial sewing machines. In this study, it is planned to explain the importance of the seam performance of garments. This test method provides for determining a ratio of either the damaged yarns to the total number of yarns present in a seam assembly or the damaged yarns to the total number of needle penetrations. Using fitting exponential curve we get the following table 7.00 0.39 5.97 1(2), 41-50, August (2012) TOTAL 4. AP-4-13 As per description the equations 2.00 3.00 Pic credit - https://www.sciencedirect.com, If you have any doubts, please don't hesitate to ask, An Overview of Textile Industry Today we are having all the things related to textile . X22 Out of which lapped seam is one of the strongest seam. Sewing speed has the greatest influence on the needle temperature. 20.00 The ornamental stitch is a series of stitches along a straight or curved line or following an ornamental design, on a single ply of material. 16.74 4:- According to (Sumit Mandal, Degree of Master of Philosophy under The Hong 2.92 0.00 X=logX3 4 Some of the manufacturers select stitch classes, stitch densities and sewing threads without consideration to their influence on the fitting comfort of the garment. Zigzag lock stitch, chain stitch or covering stitch (class 600). Without AP-6-13 Stitch type 504 is formed with three threads; one needle thread, one looper thread and one cover thread. 5.00 Seam and stitch types affect the quality and appearance of garments. Table for relationship between (GSM*cover (GSM*THICKNESS) Vs. SEAM The seam class must include seams whereby the edges are neatened by means of stitches and can be used in cases where the raw edge requires finishing.
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