A towel heating barrel is provided and includes: a barrel body, having a receiving space to receive a to-be-heated object; a barrel cover, connected to the barrel body and capable of being disposed at a first position or a second position, wherein the first position is the barrel cover being closed with respect to the barrel body; the second position is the barrel cover being open with respect to the barrel body; a first detection assembly, configured to detect whether the object is received in the receiving space to obtain a first detection result; and a heating assembly, arranged on the barrel body to heat the barrel body to further heat the object received in the receiving space, wherein the heating assembly is configured to stop generating heat based on the first detection result.

Heavy inert gas insulation layer(s) are provided for containers configured to contain components that include an energetic material. The heavy inert gas insulation layer delays desensitization or inhibits premature reaction of the energetic material due to high external temperatures. The layers may be formed in hollow walls of the container itself or as inserts that are attached to the container. An inert gas fills a sealed void space in the walls or the insert. The inert gas has a density of at least 1.5 Kg/m.sup.3 and a thermal conductivity (Tcond_gas) of no greater than two-thirds of a thermal conductivity of air (Tcond_air) to form the heavy inert gas insulation layer. The inert gas may be Argon, Krypton, Xenon or a synthetic gas and is suitably held at a pressure of 760 Torr (1 atmosphere) or greater at sea level.

A towel heating barrel is provided and includes: a barrel body, having a receiving space to receive a to-be-heated object; a barrel cover, connected to the barrel body and capable of being disposed at a first position or a second position, wherein the first position is the barrel cover being closed with respect to the barrel body; the second position is the barrel cover being open with respect to the barrel body; a first detection assembly, configured to detect whether the object is received in the receiving space to obtain a first detection result; and a heating assembly, arranged on the barrel body to heat the barrel body to further heat the object received in the receiving space, wherein the heating assembly is configured to stop generating heat based on the first detection result.

Heavy inert gas insulation layer(s) are provided for containers configured to contain components that include an energetic material. The heavy inert gas insulation layer delays desensitization or inhibits premature reaction of the energetic material due to high external temperatures. The layers may be formed in hollow walls of the container itself or as inserts that are attached to the container. An inert gas fills a sealed void space in the walls or the insert. The inert gas has a density of at least 1.5 Kg/m.sup.3 and a thermal conductivity (Tcond_gas) of no greater than two-thirds of a thermal conductivity of air (Tcond_air) to form the heavy inert gas insulation layer. The inert gas may be Argon, Krypton, Xenon or a synthetic gas and is suitably held at a pressure of 760 Torr (1 atmosphere) or greater at sea level.

An insulating container can be configured to retain a volume of at least 1800 cubic centimeters that includes an outer shell and an inner shell. The outer shell and inner shell may be integrally joined together to form an insulated double wall structure with a sealed vacuum cavity between the two shells. A compressible support member may be placed to between a bottom wall of the outer shell and a bottom wall of the inner shell to help form a planar bottom wall of the inner shell when the vacuum cavity is formed.

Methods and equipment to apply a decorative surface on a building panel wherein the surface includes a mix of fibres, binders, wear resistant particles and pigments. Layers may be applied as separate layers with equipment that applies essentially only one of the materials in the surface mix. A method of forming a surface layer on a substrate, the method including forming a first layer of a first material, applying a second layer of a second material on the first layer, mixing the first and second layers into a mix comprising the first and the second material, and applying the mix on a substrate for forming a surface layer.