CN104520503A - Constant part for security paper - Google Patents
Constant part for security paper Download PDFInfo
- Publication number
- CN104520503A CN104520503A CN201380035833.5A CN201380035833A CN104520503A CN 104520503 A CN104520503 A CN 104520503A CN 201380035833 A CN201380035833 A CN 201380035833A CN 104520503 A CN104520503 A CN 104520503A
- Authority
- CN
- China
- Prior art keywords
- vertical tube
- screening washer
- forming unit
- equipment
- fibrous suspension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F9/00—Complete machines for making continuous webs of paper
- D21F9/04—Complete machines for making continuous webs of paper of the cylinder type
- D21F9/043—Complete machines for making continuous webs of paper of the cylinder type with immersed cylinder
Landscapes
- Paper (AREA)
Abstract
The invention relates to an installation for the treatment of a fibrous material suspension (1) containing security fibers (2), which is fed from a sorting device (6) to a sheet-forming unit (4) having an overflow (3). According to the invention, a loss of security fibers (2) should be prevented by feeding the overflow (3) of the sheet-forming unit (4) into a standpipe (5), which is arranged between the sorting device (6) and the sheet-forming unit (4), and by adding the security fibers (2) to the fibrous material suspension (1) only after the sorting device (6).
Description
Technical field
The present invention relates to a kind of equipment of fibrous suspension for the treatment of comprising anti-false fiber, described fibrous suspension is guided to the page forming unit with overflow from screening washer.
Background technology
Known for a long time, by anti-false fiber being embedded in paper web the anti-forgery security improving file, banknote etc.For this reason, the anti-false fiber of fibrous suspension was mixed into usually before page is formed.
The overflow occurred when page is formed and backflow mix with the slurry of cleaner apparatus, anti-false fiber and plain boiled water and are directed through screening washer now and throw away for the centrifugal of impurity.But relatively costly anti-false fiber is also frequent to be chosen along with impurity.
Summary of the invention
Therefore, technical problem to be solved by this invention avoids the loss of anti-false fiber.
According to the present invention, this technical problem solves in the following way: the overflow of page forming unit to be directed in the vertical tube be arranged between screening washer and page forming unit and just add anti-false fiber to fibrous suspension after screening washer.Ensure that at least major part making anti-false fiber is not directed through screening washer with this, this has significantly reduced the loss of anti-false fiber.
If also guide the backflow of page forming unit in this vertical tube, then also can fully do not remained in the loop between vertical tube and page forming unit by the anti-false fiber that paper absorbs.
For the influx of the fibrous suspension required by page forming unit can be ensured, pump should be provided with between vertical tube and page forming unit.For good mixing, the flow of fibrous suspension at pump intake place should be between 1m/s to 1.5m/s.
Because pump is for this reason also for additional eddy current and mixing, so advantageous at this tool is add anti-false fiber to fibrous suspension between this vertical tube and pump.
For minimizing expense and for avoiding fiber loss, screening washer should be page forming unit before last screening washer.According to prior art, the overflow of page forming unit and backflow are no longer directed through screening washer, thus this screening washer can construct less and therefore more cheap.
For manufacturing cheque paper, cylinder mould apparatus has proved suitable page forming unit, and wherein the present invention is not restricted to this.When cylinder mould apparatus, the cylinder of rotation is partly immersed in fibrous suspension, and wherein liquid is sucked in the inside of cylinder.In this way, on the surface of cylinder, fiber is compacted and finally causes the formation of paper web.At cylinder from after fibrous suspension floats, paper web can be removed from cylinder by unloading material strip.
For can the porch of pump ensure require flow velocity and therefore also ensure require throughput, should according to the Altitude control screening washer of the suspension in vertical tube.For ensureing the ratio constant as far as possible when page is formed, the size directing into the amount of the fibrous suspension of vertical tube from screening washer should be, and makes in vertical tube, form constant suspension height.
If the cross section of vertical tube is upwards widened from outlet, then the adjustment of the suspension height in vertical tube can simplify significantly.
Should dilute the fibrous suspension of usual high concentration before screening washer, this preferably carries out with process water, and the form of described process water with plain boiled water in paper machine occurs in large quantities.
For this reason, advantageously before screening washer, be provided with other vertical tube, in described vertical tube, guide fibrous suspension and the plain boiled water of high concentration.In addition, other pump should be provided with between other vertical tube and screening washer.This extra charge is by less screening washer and avoid the loss of anti-false fiber to be able to surplus compensation.
Accompanying drawing explanation
The present invention is explained in detail hereinafter according to embodiment.In the accompanying drawings, Fig. 1 shows the schematic cross-section by the equipment for the treatment of the fibrous suspension 1 with anti-false fiber 2.
Detailed description of the invention
The fibrous suspension 1 that self-chambering is in the future furnished with the cleaning equipment of such as hydrocyclone is injected to dilute in vertical tube 9, and wherein plain boiled water 10 is also derived from plain boiled water container.Plain boiled water 10 occurs when processing fibrous suspension 1, but also occurs when manufacturing paper web.
Therefore successfully accomplish the use not only minimizing fresh water, and recycle the fiber be included in plain boiled water 10.
The fibrous suspension 1 of dilution by pump 11 from then on vertical tube 9 be transported to screening washer 6, by the sieve rejecting impurity of the porose or slit of band described screening washer 6 in.
From then on slurry directs in vertical tube 5 subsequently by screening washer 6, wherein fibrous suspension 1 with after part as overflow 3 and 7 fibrous suspensions occurred 1 that reflux in the page forming unit 4 that connects mix.
Then, the outlet being positioned at below of the vertical tube 5 opened from top by fibrous suspension 1 by pump 8 is transported to page forming unit 4.At this, give fibrous suspension 1 between vertical tube 5 and this pump 8 add with the colour of length between 4mm and 8mm or the anti-false fiber of fluorescence or other anti-false fiber to form cheque paper, such as banknote etc.Pump 8 is subsequently responsible for mixing fully at this.
For ensureing the constant ratio at page forming unit 4 place, controlling screening washer 6 is its throughput, makes suspension height keep constant in vertical tube 5 subsequently.For making it easily carry out, the cross section in vertical tube 5 upwards obviously increases from outlet.
For good mixing, the flow velocity of web of fiber in the porch of pump 8 should be between 1m/s to 1.5m/s.Design the size of vertical tube 5 correspondingly.
Page forming unit 4 is formed as the cylinder mould apparatus of known configuration.At this, the cylindricality cylinder 12 with the rotation of horizontal axis of rotation is partly immersed in the container 13 with fibrous suspension 1.Liquid to be sucked in cylinder 12 at this and to be guided in plain boiled water container as plain boiled water 10.
Due to the suction of liquid, the fiber on the surface of cylinder 12 is compacted, and this causes forming paper web.
Due to the rotation of cylinder 12, the paper web formed is available and can by sieve or the ventilative material strip 14 that unloads of felt form takes off from cylinder 12 after emersion from fibrous suspension 1.Unload on material strip 14 for paper web is fixed on but also for dewatering, unloads material strip 14 and being directed through from suction box is other after reception paper web.
To input at fibrous suspension 1 in the region in the container 13 of cylinder mould apparatus-also referred to as flow box 16, often form overflow, described overflow is laterally fed back to vertical tube 5 as backflow 7 near outlet.
In the opposed end of container 13, the redundance of fibrous suspension 1 is fed back in the upper part of vertical tube 5 certainly with the form of overflow 3.Overflow 3 can be equivalent to 40% to 75% of the amount of the fibrous suspension 1 directed in container 13 in this kind equipment.
Formed by this loop between the supply and page forming unit 4 of vertical tube 5, anti-false fiber 2, the loss of anti-false fiber 2 can be reduced to minimum of a value.Now only the anti-false fiber 2 of minimum was still arrived before screening washer 6 by the plain boiled water 10 of paper machine subsequently.
Claims (12)
1. one kind for the treatment of the equipment of fibrous suspension (1) comprising anti-false fiber (2), described fibrous suspension (1) directs into the page forming unit (4) with overflow (3) from screening washer (6), it is characterized in that, the overflow (3) of described page forming unit (4) to be directed in being arranged between described screening washer (6) and described page forming unit (4) vertical tube (5) and just add anti-false fiber (2) to fibrous suspension (1) after described screening washer (6).
2. equipment according to claim 1, is characterized in that, the backflow (7) of described page forming unit (4) is also directed in described vertical tube (5).
3. equipment according to claim 1 and 2, is characterized in that, is provided with pump (8) between described vertical tube (5) and page forming unit (4).
4. according to the equipment in aforementioned claim described in one, it is characterized in that, described anti-false fiber (2) is added to fibrous suspension (1) between described vertical tube (5) and described pump (8).
5. according to the equipment in aforementioned claim described in one, it is characterized in that, the cross section of described vertical tube (5) is upwards widened.
6. according to the equipment in aforementioned claim described in one, it is characterized in that, described screening washer (6) is last screening washer (6) before described page forming unit (4).
7. according to the equipment in aforementioned claim described in one, it is characterized in that, described page forming unit (4) is configured to cylinder mould apparatus.
8. according to the equipment in aforementioned claim described in one, it is characterized in that, be provided with other vertical tube (9) described screening washer (6) is front, described fibrous suspension (1) and plain boiled water (10) are directed in described other vertical tube (9).
9. equipment according to claim 8, is characterized in that, there is other pump (11) between described other vertical tube (9) and described screening washer (6).
10. for running the method according to the equipment in aforementioned claim described in one, it is characterized in that, screening washer (6) according to the suspension Altitude control in described vertical tube (5).
11. methods according to claim 10, it is characterized in that, the size directing into the amount of the fibrous suspension (1) of described vertical tube (5) from described screening washer (6) is, makes the suspension height forming constant in described vertical tube (5).
12. methods according to claim 10 or 11, it is characterized in that, described fibrous suspension (1) is between 1m/s to 1.5m/s at the flow velocity of the porch of described pump (8).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201210212529 DE102012212529A1 (en) | 2012-07-18 | 2012-07-18 | Security paper-flow system |
| DE102012212529.9 | 2012-07-18 | ||
| PCT/EP2013/064421 WO2014012814A1 (en) | 2012-07-18 | 2013-07-09 | Constant part for a security paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104520503A true CN104520503A (en) | 2015-04-15 |
Family
ID=48748249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380035833.5A Pending CN104520503A (en) | 2012-07-18 | 2013-07-09 | Constant part for security paper |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2875183B1 (en) |
| CN (1) | CN104520503A (en) |
| DE (1) | DE102012212529A1 (en) |
| WO (1) | WO2014012814A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011031752A2 (en) | 2009-09-08 | 2011-03-17 | The Ohio State University Research Foundation | Synthetic fuels and chemicals production with in-situ co2 capture |
| BE1022912B1 (en) * | 2015-06-29 | 2016-10-13 | Eternit Nv | A method for controlling the liquid level in the premixing unit of a hatschekmachine |
| DE102019111122A1 (en) * | 2019-04-30 | 2020-11-05 | Voith Patent Gmbh | Injector nozzle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146425A (en) * | 1974-10-02 | 1979-03-27 | Sulzer Brothers Limited | Papermaking machine headbox having a feed channel and an adjacent overflow sump |
| DE19859770A1 (en) * | 1998-06-29 | 1999-12-30 | Voith Sulzer Papiertech Patent | Method and device for mixing suspension of substances |
| DE10050109A1 (en) * | 2000-10-09 | 2002-04-11 | Voith Paper Patent Gmbh | Preparation of a fiber suspension, as paper/cardboard pulp, has a mixing pipe for the main mixed suspension flow with an elbow where an additional suspension is injected with a bulking agent |
| DE102004051327B4 (en) * | 2004-10-21 | 2007-09-27 | Voith Patent Gmbh | Method for degassing and feeding a pulp suspension to a headbox and degassing |
| CN102421962A (en) * | 2009-05-12 | 2012-04-18 | 沃依特专利有限责任公司 | Approach flow system |
| CN102505567A (en) * | 2011-10-26 | 2012-06-20 | 山东凯丽特种纸股份有限公司 | Antifalsification paper with security blocks and production method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2412771A (en) * | 1938-09-27 | 1946-12-17 | Philip H Goldsmith | Method of making paper on cylinder mold type paper machines |
| FR1583312A (en) * | 1968-08-21 | 1969-10-24 | ||
| ES2060488B1 (en) * | 1991-11-28 | 1995-12-16 | Nacional Moneda Timbre | INSTALLATION FOR THE MANUFACTURE OF SAFETY DOCUMENTS AND SAFETY DOCUMENTS OBTAINED WITH SUCH INSTALLATION. |
| EP0969142B1 (en) * | 1998-06-29 | 2004-03-24 | Voith Paper Patent GmbH | Process and device for mixing stock suspensions |
| CH696744A5 (en) * | 2003-07-07 | 2007-11-15 | Landqart | Security paper and method for its production. |
| EP1707671B1 (en) * | 2003-12-23 | 2012-03-28 | Federal State Unitary Enterprise "Goznak" | Method for producing fraud-proof value paper and value paper produced by said method |
| GB0514327D0 (en) * | 2005-07-13 | 2005-08-17 | Harris Colin A | Producing security paper |
| DE102009010037A1 (en) * | 2009-02-21 | 2010-08-26 | Voith Patent Gmbh | Arrangement for reducing pressure |
-
2012
- 2012-07-18 DE DE201210212529 patent/DE102012212529A1/en not_active Withdrawn
-
2013
- 2013-07-09 EP EP13734777.9A patent/EP2875183B1/en not_active Not-in-force
- 2013-07-09 CN CN201380035833.5A patent/CN104520503A/en active Pending
- 2013-07-09 WO PCT/EP2013/064421 patent/WO2014012814A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4146425A (en) * | 1974-10-02 | 1979-03-27 | Sulzer Brothers Limited | Papermaking machine headbox having a feed channel and an adjacent overflow sump |
| DE19859770A1 (en) * | 1998-06-29 | 1999-12-30 | Voith Sulzer Papiertech Patent | Method and device for mixing suspension of substances |
| DE10050109A1 (en) * | 2000-10-09 | 2002-04-11 | Voith Paper Patent Gmbh | Preparation of a fiber suspension, as paper/cardboard pulp, has a mixing pipe for the main mixed suspension flow with an elbow where an additional suspension is injected with a bulking agent |
| DE102004051327B4 (en) * | 2004-10-21 | 2007-09-27 | Voith Patent Gmbh | Method for degassing and feeding a pulp suspension to a headbox and degassing |
| CN102421962A (en) * | 2009-05-12 | 2012-04-18 | 沃依特专利有限责任公司 | Approach flow system |
| CN102505567A (en) * | 2011-10-26 | 2012-06-20 | 山东凯丽特种纸股份有限公司 | Antifalsification paper with security blocks and production method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 唐爱民等: "荧光防伪纤维荧光特性及其在防伪纸中的应用研究", 《造纸科学与技术》, vol. 26, no. 06, 31 December 2007 (2007-12-31), pages 66 - 70 * |
| 郝晓秀等: "防伪纤维防伪纸的研究", 《天津造纸》, no. 03, 30 September 2005 (2005-09-30), pages 19 - 22 * |
| 金珠等: "一种重要的防伪包装原材料――防伪纸张", 《上海造纸》, vol. 36, no. 04, 31 August 2005 (2005-08-31), pages 42 - 45 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012212529A1 (en) | 2014-01-23 |
| EP2875183A1 (en) | 2015-05-27 |
| EP2875183B1 (en) | 2016-04-06 |
| WO2014012814A1 (en) | 2014-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150415 |