athletic sock performance project
Post on 15-Apr-2017
Embed Size (px)
Sock Performance Test
Athletic Sock Performance TestProcedure:The construction characteristics of three sock brands: Under Armour, Danskin, and BCG were evaluated. Construction characteristics evaluated included fiber content, care instructions, yarn structure, weight, thread count, and weave structure. To test dimensional stability, one garment of each brand in the same size was set aside. Four marks were made with thread knots in each. One set of marks were made on the heel and the toe of the sock to measure shrinkage in the courses, and the other set of marks were made on the top and bottom of the sock to measure shrinkage in the wales. Following the care instructions, each sock was laundered one time, then three, and then ten. The marks were subsequently measured after washes to evaluate shrinkage. The appearance retention of each sock was also evaluated after the three categories of washes. AATCC reference standards were used to rate the socks.Crocking was tested by taking one original sock and one laundered sock in each brand and performing the test according to the AATCC test method. The AATCC scale was used to rate the crocking results.Colorfastness of the socks to chlorine and non-chlorine bleach, perspiration and laundering were tested. For the perspiration and laundering tests, the results were rated using the AATCC gray scale for staining with 5 being the least stained and 1 being the worst. The chlorine and non-chlorine bleach tests were rated on a pass of fail basis with any resemblance of staining. The ability to of the fabrics to release stains during laundering was evaluated by applying peanut butter, applesauce, grape jelly, butter, red wine, oil, mustard, ranch dressing, and chocolate sauce to the socks. These substances were allowed to dry on the socks then the socks were washed. The stains were rated using the AATCC staining scale, with 5 being the least stained and 1 being the worst. Wickability was tested by holding the tip of a 5-inch strip of each sock in a glass of water. Each strip was timed for 5 minutes, and then the distance that the water traveled was measured after the time was up. Purpose: The Purpose of this project was to compare the performances of similar products of three brands with varying price points based on textile properties.
Hypotheses:H1: The Under Armour socks will wick the best, BCG second, and Danskin the poorest.H2: The Under Armour socks will have the least shrinkage, BCG will shrink more than Under Armour, but less than Danskin and Danskin will have the most shrinkageDiscussion:Performance is affected by several factors including fiber content and fabric construction. Despite the Under Armour being priced at $14.99 a package, BCG being priced at $6.99 a package, and Danskin $6.97, BCG had the highest thread count at 25X25, followed by Danskin and Under Armour both being 20X20. The most expensive brand and the least expensive brand both had the same thread count. All brands passed the chlorine bleach test and the non-chlorine bleach test. When testing for colorfastness to perspiration, all brands had the highest possible score of 5 with no staining, exceeding the minimum industry standard of 3. All three brands also proved resistant to staining with a score of 5, indicating that no residue remained after laundering. The minimum industry standard for dry crocking is a 4 and for wet crocking a 2.5. All brands out performed the dry standard as well as the wet standard. Compared to BCG and Under Armour, Danskin transferred the least amount of color to another due to abrasion. When testing for dimensional stability the industry standard for a knit garment cannot shrink more than 5%. BCG and Under Armour did not meet industry standards, Danskin passed with shrinking 0% in the wales after 10 launderings, and 5% in the courses. Under Armour shockingly had the greatest shrinkage after 10 washes shrining 20% in the courses, and 0% shrinkage in the wales. Our hypothesis was that Under Armour would have the least amount of shrinkage. Our data did not support our hypothesis. Danskin had the least amount of shrinkage, even though we predicted it would have the most.Industry standards for wickability is for the water to move 10 inches in less than one minute. All three brands failed to meet the industry minimum. Danskin performed the best by moving 4.5 in in 5 minutes, however none of the brands would be considered a highly wickable fabric. Our hypothesis was the Under Armour would wick the best however, the data did not support our hypothesis. Actually, Danskin had the best wickability even though we predicted it would perform the worst. The fiber content in Danskin and BCG were both very similar causing the results in both of these brands to be consistently the same. Danskin contained 97% polyester and 3% spandex while BCG contained 96% polyester, 3% spandex, and 1% rubber. Under Armour had a different fiber content containing, 80% nylon, 18% polyester, and 2% spandex. This attributed to Under Armour performing worse than the other two brands. Store:Danskin $6.97Store:BCG$6.99Store:Under Armour$14.99Mininmum Industry StandardsFiber Content97% Polyester3% Spandex96% Polyester3% Spandex1% Rubber80% Nylon18% PolyesterCare InstructionsWash before wearingMachine wash cold with like colorsDo not iron or dry cleanUse only non-chlorine bleach when neededMachine wash warm with like colors Only non-chlorine bleach when neededDo not dry cleanMachine wash warm Tumble dry lowNon-chlorine bleachNo ironYarn StructureWalesCoursesSimple Single StapleSimple Single StapleSimple Single StapleSpecimen WeightOz/yd214.08 oz/yd2 18.65 oz/yd2 11.3 oz/yd2 Thread Counts (In.)WalesCoursesTotal:202040252550202050Weave Structure Interlock with a weft insert Interlock with a weft insert Interlock with a weft insert Dimensional StabilityWalesCoursesAfter 1 After 3 After 100% 0% 0%5% 5% 5%After 1 After 3 After 108.3% 8.3% 8.3%10% 10% 10% After 1 After 3 After 1020% 20% 25%0% 0% 0%3% WovenAppearance RetentionAfter 1 After 3 After 10SA-5 SA-5 SA-5After 1 After 3 After 10SA-5 SA-5 SA-5After 1 After 3 After 10SA-5 SA-5 SA-5SA-3 CrockingDry WetOriginal Laundered5 54.5 5Original Laundered4.5 4. 54.5 4.5Original Laundered5 4.55 4.542.5BleachingChlorineNon-Chlorine PassPassPassPassPassPassResistance to Staining Peanut ButterApplesauceGrape JellyButterRed WineOilMustardRanch DressingChocolate Sauce5.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.03.03.03.03.03.03.03.03.03.0Colorfastness to Perspiration 5.05.05.03.0Wickability4.5 in / 5 min 3 in / 5 min 0 in / 5 min