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Yarn Engineering

Length parameters of cotton fibers

The most frequent length in a fibrous sample is called staple length. Staple length is one of the most important factors of cotton quality because both fiber fineness and fiber tensile strength are associated with staple length. The longer staples are usually finer and stronger than the shorter staples.

Mastering Waterproof Performance: A Deep Dive into Fabric Waterproof Testers and Hydrostatic Pressure Testers

Fiber length measurement

The fiber sorter is an instrument which enables the sample to be fractionalized into length groups. The Baer sorter, the Shirley comb sorter, and the Suter-Webb sorter are the most popular method of the fiber sorter. Basically, the operation involves four main steps: Preparation of a fringe or tuft with all fibers aligned at one end. The separation or withdrawal of fibers in order of decreasing length. The preparation of a sorter diagram by laying the fibers on a black velvet pad in decreasing order of length, the fibers parallel and their lower ends aligned along a horizontal base line as shown in Figure. The analysis of the sorter diagram.

Mastering Waterproof Performance: A Deep Dive into Fabric Waterproof Testers and Hydrostatic Pressure Testers

Fiber Length and Length Distribution

After fineness, length is the most important property of a fiber. The length of cotton is directly related to its spinning performance. Knowledge of fiber length is necessary to manufacture a yarn of specific size on ring spinning system and typically longer fibers are used to manufacture fine yarns. Longer fibers are generally more uniform, finer, and stronger than shorter ones.

Mastering Waterproof Performance: A Deep Dive into Fabric Waterproof Testers and Hydrostatic Pressure Testers

Graphical Representation of Mass Variations

0shares Facebook Twitter LinkedIn Tumblr Digg Print Reddit Weibo Xing Blogger MySpace Graphical Representation of Mass Variations Graphical representations are aimed at providing easy analysis possibilities as well as providing more complete information than the numerical estimates. The following graphical representations are common with the latest generation evenness testers. Spectrogram  3D Spectrogram  Variance Length Curve […]

Mastering Waterproof Performance: A Deep Dive into Fabric Waterproof Testers and Hydrostatic Pressure Testers

Yarn Evenness II It’s Classification

0shares Facebook Twitter LinkedIn Tumblr Digg Print Reddit Weibo Xing Blogger MySpace Yarn Evenness & It’s Classification Evenness, Unevenness, regularity, and irregularity are common terms used to describe the degree of uniformity of a textile product. In the textile field, the uniformity of products like the lap, sliver, roving or yam is expressed in terms […]

Mastering Waterproof Performance: A Deep Dive into Fabric Waterproof Testers and Hydrostatic Pressure Testers

Study on four truck circular knitting machine.

Most single-jersey fabric is produced on circular machines whose latch needle cylinder and sinker ring revolve through the stationary knitting cam systems that, together with their yarn feeders, are situated at regular intervals around the circumference of the cylinder. The yarns is supplied from cones, placed either on an integral overhead bobbin stand or on a free-standing creel, through tensioners, stop motionsand guide eyes down to the yarn feeder guides.

Mastering Waterproof Performance: A Deep Dive into Fabric Waterproof Testers and Hydrostatic Pressure Testers