The document discusses the High Volume Instrument (HVI) machine, which tests cotton fiber properties quickly and accurately. It can test fiber length, strength, maturity, micronaire, and other properties. HVI systems test fiber bundles from many fibers at once to determine average values. The USTER HVI 1000 is available with optional barcode readers or UPS. HVI testing provides results for many fiber properties, including micronaire, length, strength, color, and trash content. It can test 180 samples per hour with only 2 operators. HVI testing is faster, more significant and standardized than traditional hand testing of fiber properties.

1. High Volume Instrument

2.  The testing of fibers was always of importance to the spinner. It is done by the
HVI machine. Advanced fiber testing system high volume instrument is used to
determine fiber properties in the bale management system. It is a fiber classing
system. HVI is used to determine fiber length, strength, maturity, micronire, and
other properties of the cotton fiber. HVI test report helps to law down the same
properties bale before mixing.
 High volume instrument systems are based on the fibre bundle strength testing,
i.e., many fibres are checked at the same time and their average values
determined.

3. USTER HVI 1000
Available Options
• Barcode Reader (M700)
• UPS – Uninterrupted Power
Supply device
• UV Module
• NEP Module

4. SPECIALTY OF HVI
 Fast speed
 Act as quality standard
 Offers almost all fiber properties testing

5.  Micronaire (Mic)
 UHML (Upper half Mean length)
 UI (Uniformity index)
 SFI (Short Fiber Index)
 Fiber strength in g/tex
 Elongation
 Moisture content
 Color (Reflectance Rd, Yellowness +b)
 Color grade(USDA upland, Pima or regional customized color chart)
 Trash (% Area, trash count) & trash Grade (USDA)
 SCI (Spinning consistency Index)

6.  The results are practically independently of the operator.
 The tests are based on the large volume of samples and so they are more
significant.
 The results are summarised and are immediately available.
 The raw material data is utilised in the best manner.
 As a result of the fibre material, the problems can be predicted and corrective
measures taken before such problems can occur. The results are practically
independent of the operator.
 The results are based on large volume samples, and are therefore more
significant.

7.  The respective fiber data are immediately available.
 The data are clearly arranged in summarized reports.
 They make possible the utilization of raw material data.
 Problems as a result of fiber material can be predicted and corrective measure
instituted before such as problems can occur.
 About 180 samples per hour can be tested and that too with only 2 operators.
 The time for testing per sample is 0.3 minutes. The respective fibre data are
immediately available.

8.  High volume instrument systems are based on the fiber bundle testing, i.e., many
fibers are checked at the same time and their average values determined.
Traditional testing using micronaire, pressley, stelometre, and fibro graph are
designed to determine average value for a large number of fibers, the so called
fiber bundle tests. In HVI, the bundle testing method is automated.

9.  It is not easy to establish a beginning date for development of HVI systems.
During the 1930's and 194OYs, much pioneering fiber research was done in
laboratories around the world. That work established basic fiber measurement
techniques and technologies to measure the length, strength, fineness, and color of
cotton fibers.PCCA (plans cotton cooperative association) played a key role in the
development of High Volume Instrument (HVI) testing to determine the fiber
properties of cotton which revolutionized the cotton and textile industries. As its
name implies, HVI determines the fiber properties of a bale of cotton more quickly
and more accurately than the previous method of evaluating some of those
properties by hand classing.

10.  In 1960, PCCA and Motion Control, Inc., an instrument manufacturer in Dallas,
Texas, began pioneering the development of a system to eliminate the potential for
human error that existed with hand classing and expand the number of fiber
properties that could rapidly be determined for each bale of cotton. The goal was to be
able to provide seven fiber quality characteristics for every bale produced by PCCA’s
farmer-owners. Laboratory instruments were available for determining most of the
fiber properties, but they required up to 15 minutes or longer to determine each of
the properties. The PCCA theory was based on economics: the faster cotton could be
classed, the faster it could be marketed; and, the more accurate measurements of
quality could result in a more adequate supply of cotton with fiber properties to meet
the specific needs of textile mills.