Fiber Thermal Shrinkage Tester

The Fiber Thermal Shrinkage Tester is designed to measure the thermal shrinkage of chemical fibers and natural fibers after treatment under dry heat, high-temperature steam, or boiling water conditions. The instrument uses automatic control and data-processing technology to complete testing, identify abnormal results, and calculate statistical data such as individual shrinkage, average value, range, CV, and effective test quantity. It is suitable for fiber laboratories, textile manufacturers, and quality-control departments.

Application

The tester is suitable for thermal shrinkage evaluation of:

(1) Chemical Fibers

Testing fibers with linear density from 0.89 to 16.65 dtex.

(2) Natural Fibers

Evaluating dimensional stability after specified thermal or hot-water treatment.

(3) Textile Raw Materials

Quality control of fibers before spinning, yarn production, or fabric processing.

(4) Fiber R&D

Comparing thermal shrinkage characteristics of different fiber materials and process conditions.

(5) Production Quality Control

Monitoring fiber batch consistency through individual and statistical shrinkage results.

Standards

(1) GB/T 6505-1986 — Determination of Thermal Shrinkage of Man-Made Fibres

(2) FZ/T T50004-1991 — Test Method for Thermal Shrinkage of Man-Made Fibres

The applicable standard and test procedure should be confirmed according to the specific fiber type and customer's testing requirements.

Parameters

Features

(1) Automatic test control and data processing reduce manual calculation.

(2) Suitable for fibers with a linear density of 0.89–16.65 dtex.

(3) Supports up to two test cylinders.

(4) Each cylinder can accommodate up to 35 fiber samples.

(5) Test cylinder and sample quantities can be configured according to the test requirement.

(6) Automatically identifies the cylinder number and associates corresponding pre- and post-treatment data.

(7) Automatically identifies broken samples during data processing.

(8) Automatically calculates individual and average thermal shrinkage values.

(9) Provides statistical results including range, CV, and effective test quantity.

(10) Computer output supports display and printing of test results.

Accessories

(1) Main testing unit

(2) Test cylinder assemblies

(3) Upper and lower grippers

(4) Pre-tension clamps

(5) Sample fixtures

(6) Computer/data-processing system

FAQ

(1) What fibers can be tested with this instrument?

The tester is designed for chemical and natural fibers, with the supplied specification covering fibers from 0.89 to 16.65 dtex. Before purchasing, the laboratory should confirm that the fiber type and linear density fall within the required testing range.

(2) How many fiber samples can be tested at one time?

The instrument can use up to two test cylinders, with each cylinder accommodating up to 35 samples according to the supplied specification. The number of cylinders and samples can be configured according to the testing requirement.

(3) What results does the instrument provide?

The system automatically processes the test data and can provide individual shrinkage values, average shrinkage, extreme values, CV, and effective test quantity. This reduces manual calculation and helps laboratories compare fiber batches consistently.

(4) How does the instrument handle abnormal or broken samples?

During automatic data processing, the instrument can screen outlier results and identify samples that have broken during testing. This helps prevent unsuitable measurements from being directly included in the final statistical results.

(5) Can QINSUN help confirm whether this tester suits our fiber testing method?

Yes. QINSUN engineers can review your fiber type, linear density, applicable standard, treatment method, sample quantity, and required reporting format before recommending the configuration. For specific testing requirements, contact a QINSUN engineer.