GB/T 43004-2023Hair products—Testing method for compliance (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

Introduction

The issuing organization of this document draws attention to the fact that when stating compliance with this document, it may refer to Chapters 4, 5, 7, 8 and Chapter 9 and the patents "Hair Product Flexibility Testing Method Based on Force Measurement", "Hair Bundle Flexibility Tester" and "Hair Bundle Flexibility Based on Force Measurement Principle" The use of patents related to the "Flexibility Test Device" and "Hair Product Flexibility and Sag Tester".

The issuing authority of this document takes no position regarding the authenticity, validity, or scope of the patents.

The holder of this patent has undertaken to the issuing authority of this document that he is willing to negotiate with any applicant on reasonable and non-discriminatory terms and conditions.

Please note that in addition to the above patents, some content in this document may still involve patents. The publisher of this document assumes no responsibility for identifying patents responsibility.

1 Scope

This document describes a test method for the determination of the suppleness of hair products by force testing.

This document applies to straight hair products with a length of not less than 310mm.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 6529 Standard atmosphere for humidity conditioning and testing of textiles

GB/T 8170 Numerical rounding rules and representation and determination of limit values

GB/T 23166 Hair product terminology

GB/T 29256.5-2012 Textile woven fabric structure analysis method Part 5: Determination of linear density of yarn removed from the fabric

3 Terms and definitions

The terms and definitions defined in GB/T 23166 and the following apply to this document.

4 Principles

The height of the suspension center and the blocking force of the hair bundle were measured, and the compliance coefficient was used as an index of compliance. Arrange the sample so that both ends are neat and of a certain length.

A hair bundle of a certain degree and quality is held at one end and hangs down naturally at the other end. After combing it a little, insert a standard hair comb into the sample and lower it along the sample at a constant speed.

Move, and measure the resistance experienced by the standard hair comb during the downward movement. By measuring the height and linear density of the hair strands and the quality of the hair strands, the smoothness is calculated. coefficient.