Abstract: A seam joining structure (1) includes a first material web (10) with a first barrier layer (42) and with a first edge (14) on an outer boundary of the first material web (10), a second material web (30) with a second barrier layer (42) and with a second edge (34) on an outer boundary of the second material web (30), as well as at least one seam (21) that joins the first and second material webs (10, 30) in a seam area (3) to form a first seam allowance (13) between the seam (21) and the first edge (14) of the first material web (10) and to form a second seam allowance (33) between seam (21) and the second edge (34) of the second material web (30). The first and second material webs (10, 30) are arranged one above the other in seam area (3) and the second seam allowance (33) is folded around the first edge (14) of the first material web (10) and covers the at least one seam (21) to form a seam cover (2), whereby the seam cover (2) is joined in the seam area (3) to the first material web (10).

Abstract: A material structure (1) comprises a base structure (10) that includes, at least partially, a flame-retardant material with a first side (12) and a second side (14), at least the first side (12) of the base structure being printed with a pattern (20) that has open areas (50) through which the surface of the base structure (10) is visible. The pattern (20) has a material (30) containing a fluorescent dye (40), the visible surface of the first side (12) of base structure (10), in combination with pattern (20), producing a color of the material structure that satisfies the requirements of European standard EN 471. The material structure can be used, in particular, to produce warning and protective clothing.

Abstract: A seam joining structure (1) includes a first material web (10) with a first barrier layer (42) and with a first edge (14) on an outer boundary of the first material web (10), a second material web (30) with a second barrier layer (42) and with a second edge (34) on an outer boundary of the second material web (30), as well as at least one seam (21) that joins the first and second material webs (10, 30) in a seam area (3) to form a first seam allowance (13) between the seam (21) and the first edge (14) of the first material web (10) and to form a second seam allowance (33) between seam (21) and the second edge (34) of the second material web (30). The first and second material webs (10, 30) are arranged one above the other in seam area (3) and the second seam allowance (33) is folded around the first edge (14) of the first material web (10) and covers the at least one seam (21) to form a seam cover (2), whereby the seam cover (2) is joined in the seam area (3) to the first material web (10).