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The purpose of this paper is to investigate the use of steam in order to replace air in the production of spun-like textured yarns. Further, this paper analyse the effect of production speed on process and textured yarn properties.

An existing air-jet texturing machine was modified to supply either air or steam to the texturing nozzle. Using standard commercial nozzles, both air-jet and steam-jet textured yarns were manufactured by varying production speed.

It can be concluded that steam can be used as an alternative fluid for air in making spun-like textured yarns. Results show that yarn parameters for steam-jet texturing show a similar trend to those of air-jet texturing relative to the production speed. Further, sewing threads made from steam-jet textured yarns showed good sewability up to the speeds of 350 m/min.

Only the effect of production speed on process and yarn parameters is discussed in this paper. Production speed was limited to 350 m/min due to machine constraints.

Steam is more economical than air to manufacture spun-like textured yarn at commercial pressures such as 8 bar. Steam-jet textured yarns could be used for commercial applications such as sewing threads at competitive speeds. Further, steam could be generated using sustainable and renewable fuel sources such as biomass.

This research introduced steam as an alternative fluid for air in manufacturing spun-like textured yarns.

At the passing of the Fair Trading Act, 1973, and the setting up of a Consumer Protection Service with an Office of Fair Trading under a Director‐General, few could have visualized this comprehensive machinery devised to protect the mainly economic interests of consumers could be used to further the efforts of local enforcement officers and authorities in the field of purity and quality control of food and of food hygiene in particular. This, however, is precisely the effect of a recent initiative under Sect. 34 of the Act, reported elsewhere in the BFJ, taken by the Director‐General in securing from a company operating a large group of restaurants a written undertaking, as prescribed by the Section, that it would improve its standards of hygiene; the company had ten convictions for hygiene contraventions over a period of six years.

Whilst tank linings of the membrane type are widely used in chemical engineering, the scope of this article has been limited to heavy‐duty linings, constructed in acid‐resisting bricks or tiles. Reference is made to membranes only in connection with their use as a ‘second line of defence’ when used as a backing to brickwork.

1966 may not prove to be one of the vintage years in the field of food quality control, but it holds the promise of some particularly important developments; for new and improved compositional standards for a number of processed and pre‐cooked foods and a stricter regulation of the description of almost all foods. New Labelling of Food Regulations, more extensive than anything that has gone before, may have been finally made before the end of the year. (The last day for representations in the several divisions of the proposed Regulations was actually this January 13). The Food Standards Committee's recommendations were comprehensive but necessary and it is hoped that the regulations will show no serious whittling away of these recommendations.