Patent US4895166A successfully refreshed from Google Patents.
Patent EP0144592A2 successfully refreshed from Google Patents.
EP0144592A2
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EP
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A forming fabric for use in a papermaking machine
Assignee: Nippon Filcon Co Ltd
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Filing: 1984-09-29
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Granted: —
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Expires: 2004-09-29
Abstract
Abstract A forming fabric for use in a papermaking machine has two warp layers and three weft layers. The three weft layers are arranged as an uppermost weft layer adapted to define a paper-web supporting surface of the fabric during use, an intermediate weft layer arranged below the uppermost weft layer and a lower-most weft layer arranged below the intermediate weft layer to define the under-side (i.e. wear-side) of the fabric during use. The two warp layers are arranged as an upper warp layer, the warp threads of which are interwoven only with the uppermost weft layer and with the intermediate weft layer, and a lower warp layer, the warp threads of which are interwoven only with the intermediate weft layer and with the lowermost weft layer. The warp threads of the upper warp layer are exposed on the paper-web supporting surface but are not exposed on the wear-side of the fabric. The warp threads of the lower warp layer are exposed on the wear-side of the fabric but are not exposed on the paper-web supporting surface of the fabric.
Inventors
- 👤 Tsuneo Ishino
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 13:16
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0027; D21F1/0036; Y; Y10; Y10S; Y10S162/00; Y10S162/903; Y10T; Y10T442/00; Y10T442/30; Y10T442/3179; Y10T442/3195; Y10T442/3203
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
119 words
A forming fabric for use in a papermaking machine having two warp layers and three weft layers, said fabric comprising: an uppermost weft layer (3) adapted to define the paper-web supporting surface of said fabric during in use; (4) an intermediate weft layer/arranged below said upper- most weft layer; (5) a lowermost weft layer/arranged below said intermediate weft layer to define the under-side of said fabric during in use; an upper warp layer (1), the warp threads of which are interwoven only with said uppermost weft layer and with said intermediate weft layer; and (2) a lower warp layer (2), the warp threads of which are interwoven only with said intermediate weft layer and with said lowermost weft layer.
Claim 2
Dependent Claim
119 words
A forming fabric for use in a papermaking machine having two warp layers and three weft layers, said fabric comprising: an uppermost weft layer (3) adapted to define the paper-web supporting surface of said fabric during in use; (4) an intermediate weft layer/arranged below said upper- most weft layer; (5) a lowermost weft layer/arranged below said intermediate weft layer to define the under-side of said fabric during in use; an upper warp layer (1), the warp threads of which are interwoven only with said uppermost weft layer and with said intermediate weft layer; and (2) a lower warp layer (2), the warp threads of which are interwoven only with said intermediate weft layer and with said lowermost weft layer.
Claim 3
Dependent Claim
28 words
A forming fabric as claimed in claim 1 in which the (2) warp density of said lower warp layer/is coarser than that of said upper warp layer (1)-
Claim 4
Dependent Claim
29 words
A forming fabric as claimed in claim 2 in which (2) said warp density of said lower warp layer/is one half of that of said upper warp layer (1).
Claim 5
Dependent Claim
29 words
A forming fabric as claimed in claim 3 in which the (2) warp threads of said lower warp layer/are disposed beneath alternate ones of said upper warp layer (1).
Claim 6
Dependent Claim
37 words
A forming fabric as claimed in any one of claims 1 to 4 in which the diameter of the warp threads of said lower warp layer (2) is greater than that of said upper warp layer (1).
Claim 7
Dependent Claim
42 words
A forming fabric as claimed in claim 5 in which said diameter of the warp threads of said lower warp layer (2) is within the range of 1.3 to 2 times of that of the threads of said upper warp layer (1).
Claim 8
Dependent Claim
132 words
A forming fabric for use in a papermaking machine having two warp layers and three weft layers, said fabric comprising: an uppermost weft layer (3) adapted to define the paper-web supporting surface of said fabric during use; an intermediate weft layer (4) arranged below said uppermost weft layer; (5) a lowermost weft layer/arranged below said intermediate weft layer to define the under-side of said fabric during use and having a coarser weft density of said fabric than that of said intermediate weft layer; an upper warp layer (1), the warp threads of which are interwoven only with said uppermost weft layer and with said intermediate weft layer; and a lower warp layer (2), the warp threads of which are interwoven only with said intermediate weft layer and with said lowermost weft layer.
Claim 9
Dependent Claim
132 words
A forming fabric for use in a papermaking machine having two warp layers and three weft layers, said fabric comprising: an uppermost weft layer (3) adapted to define the paper-web supporting surface of said fabric during use; an intermediate weft layer (4) arranged below said uppermost weft layer; (5) a lowermost weft layer/arranged below said intermediate weft layer to define the under-side of said fabric during use and having a coarser weft density of said fabric than that of said intermediate weft layer; an upper warp layer (1), the warp threads of which are interwoven only with said uppermost weft layer and with said intermediate weft layer; and a lower warp layer (2), the warp threads of which are interwoven only with said intermediate weft layer and with said lowermost weft layer.
Claim 10
Dependent Claim
30 words
A forming fabric as claimed in claim 7 in which said weft density of said lowermost weft layer (5) is one half of that of said intermediate weft layer (4).
Claim 11
Dependent Claim
30 words
A forming fabric as claimed in claim 8 in which the weft threads of said lowermost weft layer (5) are disposed beneath alternate ones of said intermediate weft layer (4).
Claim 12
Dependent Claim
41 words
A forming fabric as claimed in any one of claims 7, 8 and 9 in which the diameter of the weft threads of said lowermost weft layer (5) is greater than that of the threads of said intermediate weft layer (4).
Claim 13
Dependent Claim
41 words
A forming fabric as claimed in claim 10 in which said diameter of the weft threads of said lowermost (5) weft layer/is within the range of 1.3 to 2 times of that of the threads of said intermediate weft layer (4).
Claim 14
Dependent Claim
34 words
A forming fabric as claimed in any one of claims 7 to 11 in which the warp density of said lower warp layer (2) is coarser than that of said upper warp layer (1).
Claim 15
Dependent Claim
30 words
A forming fabric as claimed in claim 12 in which said warp density of said lower warp layer (2) is one half of that of said upper warp layer (1).
Claim 16
Dependent Claim
30 words
A forming fabric as claimed in claim 13 in which the warp threads of said lower warp layer (2) is disposed beneath alternate ones of said upper warp layer (1).
Claim 17
Dependent Claim
39 words
A forming fabric as claimed in any one of claims'. 7 to 14 in which the diameter of the warp threads of (2) said lower warp layer/is greater than that of the threads of said upper warp layer (1).
Claim 18
Dependent Claim
42 words
A forming fabric as claimed in claim 15 in which said diameter of the warp threads of said lower warp layer (2) is within the range of 1.3 to 2 times of that of the threads of said upper warp layer (1).
References Cited (Backward Citations)
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