FZ/T 93048.1-2021Needles for needle loom - Part 1: Felting needles (English PDF)

Foreword

FZ/T 93048 Needles for Needle Loom is planned to be published in parts. The following parts

are currently planned to be published:

---Part 1: Felting Needles;

---Part 2: Fork Needles;

---Part 3: Tapered Needles;

......

This is Part 1 of FZ/T 93048.

This Standard was drafted in accordance with the rules provided in GB/T 1.1-2009.

This Part serves as a replacement of FZ/T 93048-2010 Felting Needles. In comparison with

FZ/T 93048-2010, the main technical changes are as follows:

---Four terms, including "same edge barb distance" are deleted (see Chapter 2; Chapter 2

of Version 2010);

---The parameters of the felting needles coded 9 and 10 are added, the description of the

working part section height of the felting needles with non-triangular cross-sections is

added, and the parameters of individual felting needles are adjusted (see Table 1; Table

1 of Version 2010);

---The specifications of felting needles with a nominal length of 80 mm are added (see

Table 2; Table 2 of Version 2010);

---The technical requirements for felting needles are modified into the expression in terms

of "characteristics" (see 4.2; Chapter 4 of Version 2010);

---The representation of the number of edge barbs of special felting needles is added (see

5.1);

---The test methods, inspection rules, marking, packaging, transportation and storage are

deleted (see Chapter 5, Chapter 6 and Chapter 7 of Version 2010);

---Other editorial modifications.

This Part was proposed by China National Textile and Apparel Council.

This document shall be under the jurisdiction of Non-woven Machinery Subcommittee of

National Technical Committee on Textile Machinery and Accessories of Standardization

Administration of China (SAC/TC 215/SC 3).

Needles for Needle Loom - Part 1: Felting Needles

1 Scope

This Part of FZ/T 93048 specifies the terms and definitions, classification and basic structure,

dimensions and characteristics, and marking of felting needles.

This Part is applicable to triangular felting needles and special-shaped cross-section felting

needles for needling and consolidating nonwoven fabrics (hereinafter referred to as the felting

needles).

2 Terms and Definitions

The following terms and definitions are applicable to this document.

3 Classification and Basic Structure