Uv-a and uv-b permeable fabric

Abstract

A fabric having particularly good translucent properties with regard to UVA and UVB radiation, in particular for use in garments for the sport and leisure sector, with the transparency being reduced at the same time. The fabric comprises a first yarn made of cellulose-based fiber or regenerated fiber, and a second yarn made of polymer fiber. The proportion by weight of the first and second yarns is at least 80% by weight. The wale density is in the range from 10 to 30 per cm and the course density is in the range from 15 to 33 per cm. The second yarn has a fineness in the range from 45 to 300 dtex and the first yarn has a fineness in the range from 150 to 300 dtex. The grammage of the fabric is between 70 and 150 g/m{circumflex over ( )}2.

1 . A fabric comprising at least one first yarn and at least one second yarn, said at least one first yarn comprising at least one regenerated fiber or cellulose-based fiber, and said at least one second yarn comprising at least one polymer fiber and wherein the proportion by weight of the at least one first yarn and the at least one second yarn together is at least 80% by weight, based on the total weight of the fabric, and wherein the wale density of the fabric is in the range from 10 to 30 per cm and the course density of the fabric is in the range from 15 to 33 per cm, and wherein the at least one second yarn has a fineness in the range from 45 to 300 dtex and wherein the grammage of the fabric is between 70 and 150 g/m{circumflex over ( )}2 and wherein the at least one first yarn has a fineness in the range from 150 to 300 dtex. 
     
     
         2 . The fabric according to  claim 1 , wherein the fabric exclusively comprises cellulose-based fibers, regenerated fibers or polymer fibers, or any combination thereof. 
     
     
         3 . The fabric according to  claim 1 , wherein the wale density of the unshrunk fabric is in the range of 10 to 30 per cm or the course density of the unshrunk fabric is in the range of 15 to 33 cm, or any combination thereof. 
     
     
         4 . The fabric according to  claim 1 , wherein the at least one first yarn is dyed, or the at least one second yarn does not contain any pigmentation or optical brighteners. 
     
     
         5 . The fabric according to  claim 1 , wherein the fabric consists exclusively of the at least one first yarn and the at least one second yarn or wherein the fiber content of the cellulose-based fiber or regenerated fiber in the at least one first yarn is at least 90% based on the total fiber content of all the fibers of the at least one first yarn, or wherein the fiber content of the polymer fiber in the at least one second yarn is at least 90% by weight based on the total fiber content of all the fibers of the at least one second yarn, or wherein the at least one second yarn comprises at least 80% by weight polymer. 
     
     
         6 . The fabric according to  claim 1 , wherein the proportion by weight of the at least one first yarn is at least 30% by weight and at most 70% by weight based on the total weight of the fabric, and the proportion by weight of the at least one second yarn is at least 30% by weight and at most 70% by weight based on the total weight of the fabric, and wherein the ratio of the at least one second yarn relative to the at least one first yarn is at least 1 and at most 3. 
     
     
         7 . The fabric according to  claim 1 , wherein the fabric has a transmittance of UVB rays or UVA rays, or both UVB and UVA rays of at least 20% or wherein the fabric has a UV protection factor (USF) and Ultraviolet Protection Factor (UPF), determined according to the Australian/New Zealand Standard 4399:1996 for sun protecting clothing evaluation and classification (AS/NZS4399: 1996) in the range from 1.5 to 5. 
     
     
         8 . The fabric according to  claim 1 , wherein the fabric has a piqué or jacquard weave 
     
     
         9 . The fabric according to  claim 1 , wherein the fabric is a knitwear. 
     
     
         10 . A garment comprising a fabric according to  claim 1 . 
     
     
         11 . The fabric according to  claim 2 , wherein the at least one second yarn is a multifilament and wherein the grammage of the fabric is between 90 and 130 g/m{circumflex over ( )}2, or wherein the at least one first yarn is a monofilament, or any combination thereof. 
     
     
         12 . The fabric according to  claim 3 , wherein the wale density of the fabric, shrunk or when moist, or both, is in the range from 10 to 30 per cm, and the course density of the fabric, shrunk or when moist, or both, is in the range from 15 to 33 per cm, or a combination of said wale density and course density. 
     
     
         13 . The fabric according to  claim 4 , wherein the fabric has a degree of optical covering of at least 40% or a maximum of 90%, or both. 
     
     
         14 . The fabric according to  claim 5 , wherein the at least one second yarn comprises at least 80% by weight polyamide or polyester and comprises less than 10% by weight additives, and the at least one second yarn contains less than 10% by weight pigmentation or optical brighteners. 
     
     
         15 . The fabric according to  claim 8 , wherein the at least one first yarn and the at least one second yarn form the jacquard pattern. 
     
     
         16 . The fabric according to  claim 1 , wherein the fabric is a knitted fabric. 
     
     
         17 . The fabric according to  claim 1 , wherein the fabric is a piqué or jacquard knitted fabric. 
     
     
         18 . The fabric according to  claim 1 , wherein the fabric is a jacquard jersey knitted fabric. 
     
     
         19 . The fabric according to  claim 1 , wherein the fabric is a knitted fabric having a first plurality of stitches and a second plurality of floats or handles, wherein the second plurality of floats or handles is 10 to 35%, of the sum of the first and second pluralities, or wherein the fabric has handles or floats and the handles or floats are present in 40 to 60% of the wales, or the handles or floats are present in 20 to 60% of the courses.