Protective products, such as envelopes, having a unique combination of interior padding of expanded slit sheet paper and exterior lining of embossed paper

An envelope, comprising:

• a) a single sheet of expanded slit-sheet paper in an expanded state;
• b) a first paper sheet facing a first face of said single sheet of expanded slit-sheet paper and fixed in relation to said expanded slit-sheet paper along at least a portion of a periphery of said expanded slit-sheet paper;
• c) a second paper sheet facing a second face of said single sheet of expanded slit-sheet paper, which is opposite to said first face of said single sheet of expanded slit-sheet paper, and fixed in relation to said expanded slit-sheet paper along at least a portion of a periphery of said expanded slit-sheet paper;
• d) each of said first paper sheet and said second paper sheet being a non-embossed Kraft paper sheet having a weight within a range of between 30 to 60 lbs./3000 square feet so as to inhibit deformation of said first and second paper sheets from contraction forces of said single sheet of expanded slit-sheet paper;
• e) wherein said envelope has a pouch with a cushioning wall, with the first paper sheet being an interior layer of the cushioning wall, the second paper sheet being an exterior layer of the cushioning wall, and the expanded slit-sheet paper being between the interior layer and the exterior layer;
• f) wherein said cushioning wall of said pouch is folded such that the cushioning wall forms both front and back walls of said pouch and such that said second paper sheet is an exterior layer on both front and back faces of the front and back walls of said pouch;
• g) wherein the back wall of said pouch is longer than the front wall of said pouch, and wherein a portion of said first paper sheet that extends beyond an end of the front wall has an adhesive strip fixed thereto with a removable release liner for adhesively closing said envelope by removing the release liner and adhering said adhesive strip to the front wall;
• h) wherein said expanded slit-sheet paper is fixed to at least one of the first paper sheet and the second paper sheet only at two opposite end regions of said expanded slit-sheet paper;
• and
• i) wherein said two opposite end regions of said at least one expanded slit-sheet paper are opposite ends of said expanded slit-sheet paper in an expansion direction of said expanded slit-sheet paper.