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Pneumatic mattresses mfr. from superposed plastics webs - by providing one with reticulated pattern of metallic layer before thermo-welding in known manner
Pneumatic mattresses mfr. from superposed plastics webs - by providing one with reticulated pattern of metallic layer before thermo-welding in known manner
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机译:气动床垫由叠置的塑料网制成-在以已知方式进行热焊接之前,先为金属网提供网状图案
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摘要
Pneumatic mattresses are produced from a pair of superposed plastics webs providing at least one of the webs with a reticulated pattern of a pigmented or metallic layer at locations which are free of subsequent seals and further providing at least one of the webs with perforations in which are thermowelded inflation spigots and then superposing the webs to weld them together at locations which correspond to the mattress configuration. Process permits use of economic batch prodn. of the mattresses.
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