DESIGN OF HEAT-SHIELDING PACKET WITH INNER LINK Russian patent published in 2016 - IPC A41D13/00 

FIELD: sewing industry.

SUBSTANCE: proposed engineering solution relates to sewing industry and can be used to manufacture outer garments with a noncoherent insulant, providing a specified level of quality of finished products. Design of heat-shielding packet with internal link comprises two layers of coating material: external and internal, volumetric loose insulant, point of attachment of layers, characterised by that on inner layer of coating material there is a link for elastic band, located inside heat-shielding packet. Design of heat-shielding packet with an inner link is characterised by that value of tightening of link must not exceed 1/6 of length of link. Substance of invention is explained in Fig. 1, which presents design of heat-shielding packet with inner link. Two-layer structure of heat-shielding packet includes outer 1 and 2 inner layers of coating material, volumetric loose insulant 6 located between them, and point of attachment of layers of tightening stitches 3, wherein inner layer of coating material is processed link 5, located inside heat-shielding packet. Link is intended for fitting elastic band 4, which makes it possible to evenly distribute sag on inner side of coating, arising when forming a three-dimensional shape of heat protective bag. Value of tightening of inner link depends on thickness of heat protective bag and rigidity of coating material and must not exceed 1/6 of length of link. Proposed design of seam for attaching coating materials enables to hide through holes of tightening stitches on inner side of heat-shielding packet and reduced migration of heat insulation material. Elastic properties of elastic band facilitate process of formation of volumetric shape of coating of heat protective bag and ensures uniform distribution of sag along tightening lines. Furthermore, absence of through holes on inner side of heat-shielding packet enables to prevent migration of heat insulation material through puncture needle.

EFFECT: therefore, proposed design of heat-shielding packet with inner link enables to maintain specified level of thermal resistance along entire surface of heat-protective packet after their formation and improving quality of heat protective clothes.

1 cl, 1 dwg