How to Interpret Cotton HVI Reports

HVI (High Volume Instrument) reports are essential for evaluating cotton quality. At Max and Safe, we provide these reports with every shipment to guarantee total transparency.

What is an HVI Report?

HVI is a standardized testing system that measures the physical properties of cotton fibers quickly and accurately.

Main Parameters

1. Fiber Length

Measurement: In inches or millimeters

Typical range: 0.90" - 1.25" (short to extra long)

Importance: Longer fibers produce stronger and softer yarns

2. Micronaire (Mic)

Range: 3.5 - 5.0

Meaning: Measures fiber fineness and maturity

Ideal: 3.8 - 4.4 for most applications

3. Strength

Measurement: Grams per tex (g/tex)

Range: 24 - 32+ g/tex

Importance: Higher strength = more durable yarns

4. Color Grade

Scale: 11, 21, 31, 41, 51 (best to worst)

Factors: Whiteness and amount of foreign matter

5. Uniformity

Percentage: Typically 77% - 85%

Meaning: Consistency in fiber length

6. Trash Content

Measurement: Area percentage

Impact: Affects cleanliness of final product

How to Select the Right Cotton

According to your application:

End UseLengthMicStrength

Premium apparel≥1.125"3.8-4.2≥30
General use≥1.00"4.0-4.5≥27
Industrial≥0.90"4.2-5.0≥24

Trust Max and Safe

Our team can help you interpret these reports and select the ideal cotton for your specific production. Contact our experts.