The science of ergonomics is investigated by functional theory, which is the product's conformity to its function, And its suitability with humans. Ergonomics is concerned with solving design problems through proper planning of the workplace, tools and means of operation. This contributes to increased designer efficiency and productivity, and provides convenience and ease of work. To produce fast production rates with less effort and higher efficiency. It is also concerned with the field of

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... rity, safety and security to achieve maximum quality in the system of technical specifications and model standards. Stereoscopic handmade tissue is one of the products that has been affected by the standards of ergonomics. ‫االنسانية‬ ‫والعلوم‬ ‫والفنون‬ ‫العمارة‬ ‫مجلة‬ -‫خاص‬ ‫عدد‬ ‫اكتوبر‬ 2020 592 ‫خاص‬ ‫عدد‬ ‫ا‬ ‫كتوبر‬ 2020 603