A double-faced knitted fabric and manufacturing process

Claim 2

A double-faced weft knitted fabric, comprising two fabric structures, one forming one face and the other forming the other face, bound together by a line of connecting yarn, characterized in that it comprises at least a first and a second line of connecting yarn, separated from each other by at least one line of stitches, the first connecting line forming tucks on the stitches of the first and second face, alternate and off-set with respect to each other, the second connecting line forming tucks on stitches of the first and of the second face in alternate and off-set positions, which are those positions not involved by the first connecting line.

Claim 3

A fabric according to claim 1, characterized in that the two successive connecting lines are separated by at least one line of stitches on one face and by one line of stitches on the other face.

Claim 4

A fabric according to claim 1, characterized in that it comprises a Jacquarded face.

Claim 5

A fabric according to claim 3, characterized in that it comprises a two-colour Jacquarded face and a face in jersey of a third colour, in which the series of lines is periodically repeated, comprising: a line with yarn of a first colour on the Jacquarded face; a first weave or connecting line with alternate tucks; a line of jersey with yarn of the third colour on the other face; a line with yarn of the second colour on the Jacquarded face; a weave or connecting line with alternate off-set tucks; a line of jersey with the third colour on the other face.

Claim 6

A fabric according to claim 3, characterized in that it comprises a three-colour Jacquarded face and a face in jersey in a fourth colour, in which the following series are periodically repeated: - a line of yarn of the first colour on the Jacquarded face; - a line of yarn of the second colour on the Jacquarded face; - a line of yarn of the third colour on the Jacquarded face; - a connecting line with alternate tucks; - a line of jersey in the fourth colour on the other face; - a line of yarn of the first colour on the Jacquarded face; - a line of yarn of the second colour on the Jacquarded face; - a line of yarn of the third colour on the Jacquarded face; - a connecting line with off-set loops or tucks; - a line of jersey on the other face.

Claim 7

A process for the production of a double-faced weft knitted fabric, comprising a fabric structure on one face and a fabric structure on the other face, connected together, the said process comprising the steps of realizing at least one stitch line of the fabric structure on one face and at least one stitch line of the fabric structure on the other face, characterized in that it comprises the further steps of: - realizing a first weave or connecting line for binding the said stitch lines, by alternately engaging with connecting yarn one stitch on one face, the adjacent off-set stitch on the other face, the third adjacent off-set stitch one the first face and so on; - realizing a second connecting line of the said stitch lines, by alternately engaging with the connecting yarn the stitches of the first and second face, in positions opposite to the position corresponding to the stitches engaged before in the first connecting line.

Claim 8

A process for the production of a double-faced weft knitted fabric, comprising a fabric structure on one face and a fabric structure on the other face, connected together, the said process comprising the steps of realizing at least one stitch line of the fabric structure on one face and at least one stitch line of the fabric structure on the other face, characterized in that it comprises the further steps of: - realizing a first weave or connecting line for binding the said stitch lines, by alternately engaging with connecting yarn one stitch on one face, the adjacent off-set stitch on the other face, the third adjacent off-set stitch one the first face and so on; - realizing a second connecting line of the said stitch lines, by alternately engaging with the connecting yarn the stitches of the first and second face, in positions opposite to the position corresponding to the stitches engaged before in the first connecting line.

Claim 9

A process according to claim 6, characterized in that it is realized on a circular knitting machine, presetting the cylinder needles in two alternate series, the needles of the one and of the other series having their butts in a different position; presetting the dial needles in two alternate series, the needles of the one and of the other series having their butts in a different position; presetting the cylinder needles and dial needles in aligned, adjacent, opposite positions.

Claim 10

A process according to claim 6, characterized in that it is realized on a circular knitting machine with a Jacquard mechanism on the cylinder, presetting the dial needles in two alternate series, and the cylinder needles in one single series, facing and aligned with the dial needles and in adjacent positions.

Claim 11

A process according to claim 8, characterized in that it comprises the following steps: step 1′ - the cylinder carries out a first line (engaging one needle in four) with yarn of the first colour; step 2′ - alternate cylinder and dial needles intervene to form a connecting line, as previously described with reference to figure 9; step 3′ - the dial carries out a line of jersey with yarn of the third colour; step 4′ - the cylinder carries out a line (engaging the three needles not engaged in steps 1′) with yarn of the second colour; step 5′ - alternate cylinder and dial needles (off-set with respect to steps 2′) form a connecting line like the one shown in figure 12; step 6′ - the dial carries out a second line of jersey in the third colour.

Claim 12

A process according to claim 8, characterized in that it comprises the following steps: step 1˝ - the cylinder needles carry out a first line with yarn of the first colour; step 2˝ - the cylinder needles carry out a line with yarn of the second colour; step 3˝ - the cylinder needles carry out a line with yarn of the third colour; step 4˝ - alternate cylinder and dial needles carry out a connection with the connecting yarn; step 5˝ - the dial carries out a line of jersey in the fourth colour; steps 6˝, 7˝ and 8˝ - the cylinder needles operate again in the first, second and third colour respectively; step 9˝ - alternate cylinder and dial needles, off-set with respect to the needles of step 4˝, carry out a connection or binding; step 10˝ - the dial carries out a line of jersey in the fourth colour.