Degirmenci, Celik, Ghaziantep & Cukurova examined bursting strength and extension of bamboo and modal and cotton denim viewed knitted fabrics. They did not find any relationship between bursting strength and extension . However, their study revealed that bamboo and modal had higher bursting strength than cotton.
Why are bursting strength tests used for knits?
In burst strength testing, a force is applied to fabric to measure the conditions that will cause the textile to rupture. This test is designed for fabric that will bear weight or withstand force, such as: Trampolines. Pool covers.
Which strength test is required in knitted fabric?
These conditions are partly satisfied by the bursting test in which a disc of fabric is secured round its edge over a rubber diaphragm and the latter forced upward by liquid pressure until the fabric is ruptured. The liquid pressure at this instant is taken as a measure of the fabric strength.
How is bursting strength of fabric determined?
Diaphragm Method: The diaphragm is expanded by fluid pressure to the point of specimen rupture. The difference between the total pressure required to rupture the specimen and the pressure required to inflate the diaphragm is reported as the bursting strength.
What properties do knitted fabrics have?
6 Characteristics of Knit Fabric Stretchy and flexible. Since knit fabric forms from a series of loops, its incredibly stretchy and can stretch both in width and length. Wrinkle-resistant. Soft. Easy to maintain. Easy to damage. Difficult to sew.
What is bursting strength of knitted fabric?
Bursting strength refers to the force required to break the fabric. When force or pressure is vertically applied on fabric it is called bursting. The force needed to rupture the fabric (when applied perpendicularly) is called bursting strength . Extension refers to change in length due to stretching.
What is burst test?
Burst testing is conducted by introducing air (or other gas) into the package at a controlled rate, maintaining the internal pressure for a specific length of time, and inspecting for material failure. The entire package is subjected to uniform stress and failure generally reveals the weakest point.
Why the testing of fabric strength is important?
The strength of the fabric is very necessary for it because if the fabric strength is not good then it will break with excessive tensile force and thus the dresses produced may tear with the outside force.
What is tensile strength test of fabric?
The tensile strength is the measure of maximum force fabric can bear or support, elongate before it breaks, The tensile strength of the fabric is the maximum amount of tensile stress and tension that fabric can take before breaking or failure to resist anymore.
How do you find the tensile strength of fabric?
Most textile fabric tensile testing is performed as either a grab test, to eliminate edge effects, or a strip test, to include edge effects. For a grab test, the grips of a testing machine clamp a fabric sample in the center using jaws smaller than the sample width.
How do you test bursting strength?
Summary of Test Method A specimen is clamped over an expandable diaphragm. The diaphragm is expanded by fluid pressure to the point of specimen rupture. The difference between the total pressure required to rupture the specimen and the pressure required to inflate the diaphragm is reported as the bursting strength.
How do you measure burst strength?
Bursting strength is usually quoted in kPa. We determine bursting strength using a digital hydraulic paper or digital hydraulic board burst tester as shown below. Burst index (kPa. m2/g) = burst strength/basis weight.
What are the disadvantages of knitted fabric?
What Are the Disadvantages of Knitting? Knitting is a Real Time-Suck. Knitting is Costly. Knitting Can Worsen Arthritis. Knitting is Attention-Grabbing. Knitting is Something a Lot of People Dont Understand. Knitting is Difficult Knitting Encourages Hoarding.
What is the difference between knitted and woven fabrics?
Woven fabrics are created on weaving looms. The main difference between knit vs woven fabrics is how they are constructed. Woven fabrics are created using several warps, or longitudinal yarns, and wefts, or latitudinal yarns. Knitting involves interloping or interlacing a single yarn or thread.
Is knit fabric cotton?
Knits come in the same variety of fiber contents as woven: 100% cotton, 100% polyester, cotton/polyester blends, cotton/spandex blends, wool, nylon, rayon, etc.
What is burst strength?
: the capacity of a material (such as a paper or textile) or object (such as a metal pipe) to maintain in continuity when subjected to pressure broadly : the pressure often expressed in pounds per square inch required to rupture such a material or object under rigidly controlled conditions.
What is fabric abrasion test?
Abrasion tests try to forecast how well a fabric will stand up to wear and tear as upholstery. In the Wyzenbeek test, a piece of cotton duck fabric or a wire mesh is rubbed in a straight back and forth motion until noticeable wear or thread break is evident.
Which liquid is use in hydraulic bursting tester?
Working Procedure The liquid used may be water or glycerine. The pressure in the liquid is increased, by values or screw-driven position. Due to increase in the pressure, the diaphragm bulges, taking with it the specimen.
How Mullen burst test is performed?
The Mullen Burst Test uses a pressurized diaphragm to measure how much pressure (in pounds per square inch) the side of a corrugated box can take before it breaks. And analogy to this would be: how hard do you have to punch the side of a box to break through it.
How do you check bursting strength of corrugated box?
In this testing procedure, a rubber diaphragm is used to apply pressure to the walls of the corrugated box until it bursts. The diaphragm is expanded using hydraulics and as the diaphragm expands, the corrugated board bursts under pressure. We measure the bursting strength in Kilograms per square centimetre.
What is internal bursting pressure test?
Burst testing is an internal pressure test where a pressure generating machine is used to increase internal pressure in an object until it bursts or the seals fail to hold.