CN1844567A - Bottom-mesh press felt without felt mark - Google Patents
Bottom-mesh press felt without felt mark Download PDFInfo
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- CN1844567A CN1844567A CN 200610039989 CN200610039989A CN1844567A CN 1844567 A CN1844567 A CN 1844567A CN 200610039989 CN200610039989 CN 200610039989 CN 200610039989 A CN200610039989 A CN 200610039989A CN 1844567 A CN1844567 A CN 1844567A
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- mesh
- felt
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- spacer screen
- network
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Abstract
The invention relates to a non-trace bottom network compressed carpet, which comprises a bottom network, and a contact press roller feather network at one side of bottom network. Wherein, the bottom network contacts said feather network; and another side of said bottom network is fine network; one side of fine network is combined with said bottom network; another side of fine network is contact paper feather network; said contact paper feather network is combined to the fine network. Said invention is treated with needling and following treatments. The invention has the characters of bottom network compressed carpet, while it will no generate trace on paper, to improve the paper quality.
Description
Technical field
The present invention relates generally to a kind of employed press felt of press section of paper machine.
Background technology
Paper machine comprises forming section, press section and drying section.In paper-making process, the l Water Paper that is formed by forming section is passed to the press section of mainly being made up of pressure roller and press felt.In the nip that a pair of pressure roller forms, thereby thereby l Water Paper stands mechanical pressure to make a part of water in the l Water Paper be squeezed out and is received by press felt and reduce the l Water Paper moisture.The main effect of press felt is: support and with the page transmission of producing by nip, promptly as conveyer belt; Participate in the modification on page surface, promptly the woollen blanket surface is designed and manufactured into very level and smooth and is rich in resilience, so that woollen blanket is given page surface smoothing, traceless characteristic after overpressure zone; Woollen blanket can receive the water that is extruded from l Water Paper in a large number in nip, and woollen blanket must have enough pore spaces and low resistance to water-flow for this reason.
In the prior art, tradition spacer screen press felt base cloth is made by the monofilament and/or the monofilament twine of diameter more than 0.2 millimeter usually, usually find that felt mark appears in the page of producing in actual the use on some paper machine, particularly produce high-grade thin paper and obvious base cloth trace occurs, have a strong impact on page quality at the Flying Dutchman position.Existing patent has been mentioned a kind of without felt mark woollen blanket, and it is that base cloth adopts 100～1500 DENIER multifilament as warp, and 500～1000 DENIER multifilament are as parallel, the manufacture method that the superficial layer fleece adopts 6～10 DENIER to mix with 60～64 wools.Because this woollen blanket scrim material all adopts the software yarn, so that base cloth is crushed out of shape and attenuation in high linear pressure nip, finally causes the base cloth water-permeable passage to stop up and the decline of woollen blanket moisture storage capacity.Also have patent to mention a kind of combination felt, promptly adopt through the fine-structure mesh of linear diameter, below the method that adopts traditional spacer screen base cloth to make less than 0.3 millimeter manufacturing in the contact sheet side.Other has patent to mention a kind of without felt mark woollen blanket, promptly spreads the manufacture method of one deck elastic membrane on the spacer screen base cloth, 0.15～05 millimeter of film thickness, and hardness 40～70 degree, but above-mentioned two kinds of method manufacture difficulty are bigger.
Summary of the invention
The object of the invention provides a kind of bottom-mesh press felt without felt mark of easy production, has solved the felt mark problem that general spacer screen press felt produces page.
The present invention is implemented by the following technical programs:
A kind of bottom-mesh press felt without felt mark, it comprises spacer screen, is positioned at the contact pressure roller side fleece layer of described spacer screen one side, described spacer screen combines with the described pressure roller side fleece layer that contacts, it is characterized in that: described spacer screen opposite side also is provided with fine-structure mesh, one side of described fine-structure mesh combines with described spacer screen, the opposite side of described fine-structure mesh also is provided with contact sheet side fleece layer, and described contact sheet side fleece layer combines with described fine-structure mesh.
Comprise at least a in the following material in the described fine-structure mesh: diameter less than 0.3 millimeter monofilament, diameter less than the twine of 0.2 millimeter monofilament, diameter less than 0.2 millimeter monofilament with less than the twine of 8 spun yarns, less than the multi cord of 3000 DENIER multifilament, less than the multi cord of 1000 DENIER multifilament.
Described fine-structure mesh comprise diameter less than one monofilament at least of 0.2 millimeter with at least one less than the twine of 8 spun yarns.
The lines of described fine-structure mesh is organized as a kind of in 1/3 brokentwlllweave, 2/2 brokentwlllweave, 1/5 brokentwlllweave.
Described fine-structure mesh is single-layered weave structure or double-layered structure's structure.
The material of described fine-structure mesh is polyamide or polyester material.
Compared with the prior art the present invention has following advantage: the fine-structure mesh of press felt of the present invention has half incompressible characteristic, can not produce as the base cloth mesh sealing of needled conventionally woollen blanket at nip to cause woollen blanket water permeability decline problem.Described fine-structure mesh contains a certain proportion of beformable body yarn can improve the whole resilience (this is that traditional spacer screen press felt is not available) of woollen blanket, helps reducing the use amount of woollen blanket surface fleece layer, improves paper machine speed and eliminates the woollen blanket impression.Bottom-mesh press felt without felt mark applicability of the present invention is good, can be used for changing the high line nipper of paper machine and foreign paper machine and high speed, be applicable to and produce all kinds of high-grade paper kinds, for example cigarette paper, white duplex board, art paper, printing paper, copy paper etc. are used in especially and produce the extraordinary high thin paper of paper surface requirements.
Description of drawings
Accompanying drawing 1 is a bottom-mesh press felt without felt mark stereogram of the present invention;
Accompanying drawing 2 is the cross-sectional view of bottom-mesh press felt without felt mark of the present invention along the A-A direction;
Wherein: 10, woollen blanket; 1, spacer screen; 2, fine-structure mesh; 3, contact sheet side fleece layer; 4, contact pressure roller side fleece layer; 11, spacer screen warp; 12, spacer screen parallel; 21, fine-structure mesh warp; 22, fine-structure mesh parallel.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of bottom-mesh press felt without felt mark, it comprises spacer screen 1, is positioned at the contact pressure roller side fleece layer 4 of described spacer screen 1 one sides, described spacer screen 1 combines with the described pressure roller side fleece layer 4 that contacts, described spacer screen 1 opposite side also is provided with fine-structure mesh 2, one side of described fine-structure mesh 1 combines with described spacer screen 1, and the opposite side of described fine-structure mesh 2 also is provided with contact sheet side fleece layer 3, and described contact sheet side fleece layer 3 combines with described fine-structure mesh 2.
Described fine-structure mesh 2 is formed by fine-structure mesh warp 21 and 22 braidings of fine-structure mesh parallel.
Described spacer screen 1 is formed by spacer screen warp 11 and 12 braidings of spacer screen parallel.
Comprise at least a in the following material in the described fine-structure mesh 2: diameter less than 0.3 millimeter monofilament, diameter less than the twine of 0.2 millimeter monofilament, diameter less than 0.2 millimeter monofilament with less than the twine of 8 spun yarns, less than the multi cord of 3000 DENIER multifilament, less than the multi cord of 1000 DENIER multifilament.
Described fine-structure mesh 2 comprise diameter less than one monofilament at least of 0.2 millimeter with at least one less than the twine of 8 spun yarns.
The lines of described fine-structure mesh 2 is organized as a kind of in 1/3 brokentwlllweave, 2/2 brokentwlllweave, 1/5 brokentwlllweave.
Described fine-structure mesh 2 is single-layered weave structure or double-layered structure's structure.
The material of described fine-structure mesh 2 is polyamide or polyester material.
Manufacture final products bottom-mesh press felt without felt mark 10 by acupuncture processing and postfinishing process.
Embodiment 1:
A kind of bottom-mesh press felt without felt mark, it comprises spacer screen 1, is positioned at the contact pressure roller side fleece layer 4 of described spacer screen 1 one sides, described spacer screen 1 combines with the described pressure roller side fleece layer 4 that contacts, described spacer screen 1 opposite side also is provided with fine-structure mesh 2, one side of described fine-structure mesh 1 combines with described spacer screen 1, the opposite side of described fine-structure mesh 2 also is provided with contact sheet side fleece layer 3, and described contact sheet side fleece layer 3 combines with described fine-structure mesh 2.
Described fine-structure mesh 2 is formed by fine-structure mesh warp 21 and 22 braidings of fine-structure mesh parallel.
Described spacer screen 1 is formed by spacer screen warp 11 and 12 braidings of spacer screen parallel.
The material structure of described spacer screen 1 and fine-structure mesh 2 is respectively:
Spacer screen 1 structure: spacer screen warp 11 adopts 4 strands of 0.2 millimeter nylon monofilaments of diameter, 120/10 centimetres of density; Spacer screen parallel 12 adopts 4 strands of 0.2 millimeter nylon monofilaments of diameter, 80/10 centimetres of density; 1/3 brokentwlllweave tissue, double-decker;
Fine-structure mesh 2 structures: fine-structure mesh warp 21 adopts 2 strands of 0.16 millimeter nylon monofilaments of diameter and 20 nylon yarn plying, 140/10 centimetres of density;
Fine-structure mesh parallel 22 adopts 1 strand of 0.25 millimeter nylon monofilament of diameter, 80/10 centimetres of density; 2/2 brokentwlllweave tissue, single layer structure;
Contact sheet side fleece layer 3 adopts 8 and 15 Denier nylon staple fibres, quantitative 400 grams/square metre;
Contact pressure roller side fleece layer 4 adopts 15 Denier nylon staple fibres, quantitative 160 grams/square metre;
Manufacture final products bottom-mesh press felt without felt mark 10 by acupuncture processing and postfinishing process.
This bottom-mesh press felt without felt mark quantitatively reach 1300 the gram/square metre, be applicable to position production fine paper grades such as plain press, grooved press, Flying Dutchman squeezing.
Claims (6)
1, a kind of bottom-mesh press felt without felt mark, it comprises spacer screen (1), is positioned at the contact pressure roller side fleece layer (4) of described spacer screen (1) one side, described spacer screen (1) combines with the described pressure roller side fleece layer (4) that contacts, it is characterized in that: described spacer screen (1) opposite side also is provided with fine-structure mesh (2), one side of described fine-structure mesh (1) combines with described spacer screen (1), the opposite side of described fine-structure mesh (2) also is provided with contact sheet side fleece layer (3), and described contact sheet side fleece layer (3) combines with described fine-structure mesh (2).
2, bottom-mesh press felt without felt mark according to claim 1 is characterized in that: comprise at least a in the following material in the described fine-structure mesh (2): diameter less than 0.3 millimeter monofilament, diameter less than the twine of 0.2 millimeter monofilament, diameter less than 0.2 millimeter monofilament with less than the twine of 8 spun yarns, less than the multi cord of 3000 DENIER multifilament, less than the multi cord of 1000 DENIER multifilament.
3, bottom-mesh press felt without felt mark according to claim 2 is characterized in that: described fine-structure mesh (2) comprise diameter less than one monofilament at least of 0.2 millimeter with at least one less than the twine of 8 spun yarns.
4, bottom-mesh press felt without felt mark according to claim 2 is characterized in that: the lines of described fine-structure mesh (2) is organized as a kind of in 1/3 brokentwlllweave, 2/2 brokentwlllweave, 1/5 brokentwlllweave.
5, bottom-mesh press felt without felt mark according to claim 2 is characterized in that: described fine-structure mesh (2) is single-layered weave structure or double-layered structure's structure.
6, bottom-mesh press felt without felt mark according to claim 2 is characterized in that: the material of described fine-structure mesh (2) is polyamide or polyester material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610039989 CN1844567A (en) | 2006-04-25 | 2006-04-25 | Bottom-mesh press felt without felt mark |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610039989 CN1844567A (en) | 2006-04-25 | 2006-04-25 | Bottom-mesh press felt without felt mark |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1844567A true CN1844567A (en) | 2006-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610039989 Pending CN1844567A (en) | 2006-04-25 | 2006-04-25 | Bottom-mesh press felt without felt mark |
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| CN (1) | CN1844567A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107287964A (en) * | 2017-06-13 | 2017-10-24 | 太仓市宇航造纸机械厂 | A kind of composite papermaking felt structure |
| CN108505385A (en) * | 2018-06-14 | 2018-09-07 | 四川邦尼德织物有限公司 | A kind of novel papermaking machine press section felts base net |
-
2006
- 2006-04-25 CN CN 200610039989 patent/CN1844567A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107287964A (en) * | 2017-06-13 | 2017-10-24 | 太仓市宇航造纸机械厂 | A kind of composite papermaking felt structure |
| CN108505385A (en) * | 2018-06-14 | 2018-09-07 | 四川邦尼德织物有限公司 | A kind of novel papermaking machine press section felts base net |
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