A Profile of New Zealand Crossbred Wool Clip in Both Greasy and Scoured Forms in the 2017-18, 2018-19, and 2019-20 Seasons

ABSTRACT

New Zealand is the third-largest producer of wool in the world and accounts for approximately 9.3% of world production (approx. 140,000 tonnes greasy annually). We describe the properties of the New Zealand crossbred wool clip over the 2017–18, 2018–19, and 2019–20 seasons and compare the statistics from the greasy farm lots with data obtained from consignments of scoured wool. Monthly average values of diameter, vegetable matter, and color exhibit seasonality, and despite the fact that approximately 30% of the wool is exported in its greasy state, the remaining 70% scoured onshore still adequately represents the body of the clip, with still some degree of seasonality, but with changes in the distribution of diameters of consignments (but not the overall averages), and improvements in color. Additionally, we demonstrate that despite the replacement of nonylphenolethoxylate (NPEO) by more environmental-friendly detergents, the levels of residual ash and grease in the scoured wool consignments show improvement over those reported in 2003 and 2007.

抽象

新西兰是世界第三大羊毛生产国，约占世界产量的9.3%（每年约14万吨油腻）. 我们描述了新西兰杂交羊毛夹在2017-18年、2018-19年和2019-20年季节的特性，并将油腻农场的统计数据与从冲刷羊毛托运中获得的数据进行比较. 直径、蔬菜物质和颜色的月平均值表现出季节性，尽管大约 30% 的羊毛以油腻状态出口，但剩余的 70% 在岸上冲刷仍然充分代表夹子的主体，仍有一定的季节性，但货物直径分布的变化（但不是总体平均值），并改进颜色. 此外，我们证明，尽管用更环保的洗涤剂替代了nonylphenolethoxylate（NPEO），但冲刷羊毛托运中残留的灰烬和油脂水平与2003年和2007年报告的水平有所改善.

KEYWORDS:

• Raw wool
• IWTO certification
• annual statistics
• yield
• mean fiber diameter
• color
• fiber length

关键 字:

• 生羊毛
• 认
• 年度统计
• 产量
• 平均纤维直径
• 颜色
• 纤维长度

Highlights

• Statistical analyses of three seasons of data on New Zealand crossbred wool

• First comprehensive comparative review since 2010

• Greasy and scoured wool statistics are compared

• Statistics for both greasy and scoured show consistent seasonality

• Scoured wool cleanliness has improved since 2003-07

Acknowledgements

The authors are grateful to CP Wool Ltd for allowing access to their greasy wool test results, and to A. Coleman and M. Greenlaw for helpful commentary on greasy wool statistics. T. Cunningham provided helpful comments on scoured wool processing.

Disclosure statement

Both authors were either employed or contracted by SGS New Zealand Limited whilst this work was carried out. SGS New Zealand Limited operates the wool testing laboratory which provided the data for this research. Neither the authors nor SGS New Zealand Limited stand to benefit from the outcome of the work. The data retains full anonymity with respect to ownership of the various lots of wool to which the results pertain.

Data availability and deposition

Due to the commercial sensitivity of the data, they cannot be shared.

Additional information

Funding

This work was not supported by any external funding sources or grants.