Patent ID: 11952682
Assignee: CANDIANI S.P.A.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D | IPC D

Claim 1:
2. The method according to claim 1, wherein, in said step of helically wrapping, said covering yarn becomes twisted with said final twist direction opposite to said initial twist direction in such a way that said predetermined minimum value T0 and said predetermined maximum value T1 depend upon said covering yarn linear mass density as indicated in a respective line of the following table:, TABLE 1

Nm
T0
T1

6
100
800

8
120
850

10
150
950

16
180
1000

25
200
1200

30
220
1300

36
250
1500

42
300
1600

50
350
1650

76
450
1900

100
500
2100

wherein for values of said covering yarn linear mass density Nm intermediate between values indicated in respective contiguous lines of said table, said minimum and maximum values T0, T1 are obtained by linearly interpolating the values written in said respective contiguous lines and in the columns headed by T0 and T1 of said table, respectively.