Provided is a copper fiber nonwoven fabric having a bonding portion between copper fibers, and in the relationship between compressive stress and strain, is provided with a first region exhibiting plastic deformation and a second region exhibiting elastic deformation in which compressive stress is higher than the first region. Alternatively, the copper fiber nonwoven fabric has a bonding portion between copper fibers, and in the relationship between compressive stress and strain, has a region exhibiting elastic deformation, wherein the region exhibiting elastic deformation has an elastic deformation region before an inflection portion a, the inflection portion a, and an elastic deformation region after the inflection portion a.

One object of the present invention is to provide a metal fiber nonwoven fabric having high homogeneity, and the present invention provides a metal fiber nonwoven fabric in which metal fibers are bonded to each other having a coefficient of variation (CV value) of a basis weight in accordance with JIS Z 8101 (ISO 3534: 2006) per 1 cm.sup.2 of 10% or less.

A process for producing a graphene paper product of metal-bonded graphene sheets, comprising: (a) preparing a graphene dispersion having discrete graphene sheets dispersed in a fluid medium, wherein the graphene sheets contain single-layer or few-layer graphene sheets selected from a pristine graphene material or a non-pristine graphene material, wherein the non-pristine graphene is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof; (b) assembling the graphene sheets into a paper product containing a sheet or a roll of graphene paper; and (c) depositing a metal on surfaces of graphene sheets to bond graphene sheets together for forming the graphene paper product, which contains off-plane graphene sheets.

Resin-impregnated decorative paper includes decorative paper impregnated with an impregnation resin, and the decorative paper includes a base paper, a pattern layer formed by printing on the upper side UP of the base paper, and a foamable resin layer stacked on the upper side UP of the pattern layer and containing a foaming agent. The foamable resin layer foams to expand in volume, thereby forming an uneven pattern on the upper UP surface of the pattern layer, and the uneven pattern has a maximum height of 20 m or more and 90 m or less in a vertical direction from a recess to a projection.

Resin-impregnated decorative paper includes decorative paper impregnated with an impregnation resin, and the decorative paper includes a base paper, a pattern layer formed by printing on the upper side UP of the base paper, and a foamable resin layer stacked on the upper side UP of the pattern layer and containing a foaming agent. The foamable resin layer foams to expand in volume, thereby forming an uneven pattern on the upper UP surface of the pattern layer, and the uneven pattern has a maximum height of 20 m or more and 90 m or less in a vertical direction from a recess to a projection.

Electroconductive paper structure with cellulosic fibrous materials and electroconductive fibers, wherein the electroconductive paper structure has embedded therein a continuous, electroconductive thread for contacting the electroconductive paper structure from one end to the opposite end of the paper structure.

Electroconductive paper structure with cellulosic fibrous materials and electroconductive fibers, wherein the electroconductive paper structure has embedded therein a continuous, electroconductive thread for contacting the electroconductive paper structure from one end to the opposite end of the paper structure.