FI127770B - Industrial textile, protective element and method for protecting the industrial textile - Google Patents

Industrial textile, protective element and method for protecting the industrial textile Download PDF

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Publication number
FI127770B
FI127770B FI20165853A FI20165853A FI127770B FI 127770 B FI127770 B FI 127770B FI 20165853 A FI20165853 A FI 20165853A FI 20165853 A FI20165853 A FI 20165853A FI 127770 B FI127770 B FI 127770B
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FI
Finland
Prior art keywords
textile
industrial
adhesive tape
protective element
industrial textile
Prior art date
Application number
FI20165853A
Other languages
Finnish (fi)
Swedish (sv)
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FI20165853L (en
FI20165853A (en
Inventor
Juha Paavolainen
Original Assignee
Valmet Technologies Oy
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Priority to FI20165853A priority Critical patent/FI127770B/en
Publication of FI20165853L publication Critical patent/FI20165853L/en
Publication of FI20165853A publication Critical patent/FI20165853A/en
Application granted granted Critical
Publication of FI127770B publication Critical patent/FI127770B/en

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/10—Seams thereof
    • 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
    • D21F1/0027—Screen-cloths
    • D21F1/0054—Seams thereof
    • 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
    • D21F1/10—Wire-cloths
    • 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
    • D21F1/10—Wire-cloths
    • D21F1/12—Seams thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts

Landscapes

  • Laminated Bodies (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Adhesive Tapes (AREA)

Abstract

The invention relates to an industrial textile (1), a protective element (PE) and a method of protecting an industrial textile. The industrial textile comprises longitudinal edge portions (EP) which are provided with one or more protective elements. The protective elements are individual physical pieces mounted on outer surfaces of the edge portions. The protective element may be fastened to the textile by means of an adhesive joint.

Description

Industrial textile, protective element and method for
PROTECTING THE INDUSTRIAL TEXTILE
Background of the invention
The invention relates to an industrial textile.
The invention relates also to a protecting element and a method of protecting an industrial textile.
The field of the invention is defined more specifically in preambles of the independent claims.
Industrial fabrics are implemented in paper machine clothing and in 10 filtering devices, for example. The known industrial fabrics have shown to contain some problems regarding their durability in harsh environment.
Publication DE 102004010425 discloses a seam reinforcement in the edge area of an industrial textile.
Publication DE 102013224678 discloses a yam or band shaped 15 edge reinforcing element for a foil. The reinforcing element prevents the foil to be tom.
Publication US 4702952 discloses reinforcing the edge areas of a fabric by a woven band.
Brief description of the invention
An object of the invention is to provide a novel and improved industrial textile, protective element and method of protecting an industrial textile.
The industrial textile of the invention is characterized by features of characterized portion of a first independent apparatus claim.
The protective element of the invention is characterized by features 25 of characterized portion of a second independent apparatus claim.
The method of the invention is characterized by features of characterized portion of independent method claim.
An idea of the disclosed solution is that an industrial textile comprises: a first surface and a second surface; longitudinal edge portions and a 30 centre portion between the edges portions; and at least one protective element is fastened on at least one surface of the textile. The protective element is an individual element separate from the industrial textile and is being fastened on the longitudinal edge portion of the industrial textile.
An advantage of the disclosed solution is that selected portions at 35 longitudinal edge areas or portions of the longitudinal industrial textile may be protected by means of one or more protective elements mounted on the surface of the textile. This way, the textile may be protected against harmful effects of thermal, chemical and mechanical loadings, or at least against one of
20165853 prh 21 -05- 2018 them. Mounting of the separate individual protective element is easy and fast, and the mounting is executed after the basic textile is formed and finished.
In conclusion, the disclosed protecting element provides improved, reliable, cost-effective and convenient way to improve durability of the industrial textile.
Let it be mentioned that in this patent application the edge areas or portions of the textile may mean areas which are not carrying a fibrous web, i.e. are free of web during use, and are therefore subjected to influence of temperature, moisture and chemicals. However, the centre portion between the edge areas is covered and protected by means of the fibre web during the use.
According to an embodiment, the protective element is made of bendable material. The material of the protective element may also be elastic.
According to an embodiment, the protective element has a strip-like configuration whereby the length of the element is greater than the width.
According to an embodiment, the protective element is an elongated physical piece having a longitudinal axis. The protective element is mounted on the textile so that the longitudinal axis of the protective element is in a machine direction MD of the textile. In other words, the longitudinal axis of the textile and the element are parallel.
According to an embodiment, the protective element is thin. Thus, thickness of the element may be 0,5 - 2,5 mm, and correspondingly, thickness of the industrial textile may be 1 - 3 mm.
According to an embodiment, the protective element is thermally resistant and is configured to withstand high temperatures over 90° C. In addition to being thermally resistant, the protective element is mechanically durable also at high temperatures.
According to an embodiment, the protective element is thermally resistant and is configured to withstand very high temperatures over 110°C.
According to an embodiment, the protective element is factory fitted. Thus, the textile may be provided with one or more protective elements already during the manufacture of the textile. After the textile is formed and finished the protective elements may be mounted on surfaces of one or both edge portions of the textile.
According to an embodiment, the protective element is retrofitted. This embodiment allows the existing industrial textiles to be updated for improved durability against demanding conditions wherein the textile is applied.
According to an embodiment, the protective element extends only part of the length of the total length of the textile. Thereby only certain critical one or more portions of the textile are covered by the protective element.
20165853 prh 21 -05- 2018
According to an embodiment, the protective element is a longitudinal piece and extends over the entire length of the textile at the edge area.
According to an embodiment, the protective element is fastened on the textile by means of an adhesive joint. The adhesive joint comprises adhe5 sive agent, which may be part of the protective element, or alternatively, it may be applied as a separate phase between the surface of the textile and the protective element.
According to an embodiment, the protective element is fastened on the textile by means of a hot melting or welding. Thus, the fastening may be 10 executed by means of ultrasonic welding, for example.
According to an embodiment, the protective element is fastened on the textile by means of sewing. The sewing is suitable not only for protective element made of textile material but also for films and other thin layers, for example.
According to an embodiment, the protective element is an adhesive tape comprising a flexible body and an adhesive surface facing towards the surface of the industrial textile. The adhesive tape is fast and easy to mount on the surface of the textile and requires no special tools or skills. Further, the mounting of the adhesive tape is clean and typically no hardening or setting 20 time is required.
According to an embodiment, the body of the adhesive tape is made of at least one foam plastic. The foam plastic body has good thermal insulation properties. Furthermore, the foam plastic may remould according to surface properties of the textile and may thereby be well anchored.
According to an embodiment, the body of the adhesive tape comprises at least one temperature insulating material layer. Thus, the adhesive tape may serve as a convenient thermal protection piece for desired portions of the textile.
According to an embodiment, the body of the adhesive tape com30 prises at least one foam plastic layer. The foam plastic layer has good thermal insulation properties.
According to an embodiment, the protective element is a single coated, pressure sensitive adhesive tape, such as a tape marketed under the trade mark 3M Extreme Sealing Tape.
According to an embodiment, the protective element is a single coated, pressure sensitive adhesive tape, such as a tape marketed under the trade mark Tuff-Flex. The tape is a high temperature tape, being heat and chemical resistant fiberglass tape with PTFE-resign impregnation. Further, the tape is self-adhesive.
20165853 prh 21 -05- 2018
According to an embodiment, the protective element is a separate physical thin strip-like piece formed of a film or sheet-like material and may be fastened on surface of the industrial textile by means of adhesive component, for example. The protective element may be formed of bendable plastic mate5 rial suitable for the harsh conditions.
According to an embodiment, the protective element is a separate strip-like physical piece made of textile material. The thin textile strip may be fastened on the surface of the industrial textile by gluing or welding. The textile protective strip may be made of a woven textile by cutting narrow longitu10 dinal strips. The material of the strip-like protective element may be of Polyphenylene sulfide (PPS), which is resistant against high temperatures and also withstands well mechanical wearing and chemical conditions.
According to an embodiment, both longitudinal edge portions of the textile are provided with at least one protective element. Typically, both edge 15 portions are subjected to greater loading compared to the centre portion, wherefore it is useful to protect them against harsh conditions.
According to an embodiment, the textile comprises at least one transverse seam for facilitating mounting of the textile. At least one of the protective elements is located at the seam or at proximity of the seam. Typically, 20 the seam is the weakest portion of the textile body whereby it is advantageous to improve durability and resistance of the seam and seam area by means of the one or more protective elements.
According to an embodiment, the textile comprises at least one transverse seam wherein two connection ends of an industrial textile are pro25 vided with several seam loops being connected to each other by means of one or more transversal seam elements such as connecting threads. The textile may be a woven structure wherein several machine direction threads, i.e. MDyarns form the mentioned seam loops at the connection ends. The MD-yarns forming the seam loops are connected to the textile structure by utilizing back 30 weaving. However, the structure of the textile may be formed by means of other techniques than by weaving, however, also in this case the seam loops may be connected to the basic structure by utilizing any other tie back technique than back weaving. Then, the back weaving or tie back portion of the textile is provided with the protective element for protecting the returning machine di35 rection yarns at the edge portions. The protective element may provide mechanical, thermal and/or chemical protection for the yams of the tie back portion.
According to an embodiment, the industrial textile is a paper machine clothing product. Then a first surface of the textile is a machine side sur40 face and is intended to be faced towards the machine, and the second surface
20165853 prh 21 -05- 2018 of the textile is a product side surface intended to be faced towards the fibre web being treated by the paper machine. One or more protective elements are arranged only on the product side of the textile. Further, the one or more protective elements are only on the edge portions of the textile, which edge portions are not being covered by the fibre web during the use and are therefore subjected to harsh conditions.
According to an embodiment, the industrial textile is a dryer fabric. The dryer fabric is configured to support a fibre web at a drying section of a paper machine wherein the fibre web is subjected to heat for removing moisture. Thus, the web side surface, i.e. product side surface is facing towards a drying cylinder and possible other drying devices, wherefore high temperatures are subjected to the web side surface especially at edge portions, which are directly facing the drying means. Therefore, the edge portions of the dryer fabric may be provided with one or more protective strips, tapes or other physical elements for improving their thermal resistance.
According to an embodiment, the industrial textile is a filter fabric or transport belt of a filtering device. Longitudinal edge portions of the filter fabric and the transport belt may be subjected to mechanical, chemical and thermal loading wherefore it is advantageous to provide them with one or more strips, tapes or other physical elements for improving their resistance against these loadings and for lengthening their operating life.
According to an embodiment, the industrial textile is a woven structure.
According to an embodiment, the industrial textile is formed by winding or any other non-woven structure
The above disclosed embodiments and features may be combined in order to form suitable alternative solutions provided with necessary features.
Brief description of the figures
Some embodiments are described in more detail in the accompanying drawings, in which
Figure 1 is a schematic view of a longitudinal industrial textile provided with a seam and forming a closed loop,
Figure 2 is a schematic top view of an industrial textile provided with longitudinal narrow protective elements on longitudinal edge portions of the textile,
Figure 3 is a schematic sectional view of an industrial textile seen in machine direction and being provided with protection elements for protecting portions not being covered by a fibrous web,
20165853 prh 21 -05- 2018
Figure 4 is a schematic top view of a seam area of an industrial textile provided with one or more protective elements,
Figure 5 is a schematic diagram disclosing some industrial textiles,
Figure 6 is a schematic diagram disclosing some examples of pro5 tective elements,
Figure 7 is a schematic diagram disclosing some purpose of use for the protective element, and
Figure 8 is a schematic view of an adhesive tape suitable for the protective element.
For the sake of clarity, the figures show some embodiments of the disclosed solution in a simplified manner. In the figures, like reference numerals identify like elements.
Detailed description of some embodiments
Figure 1 shows a longitudinal industrial textile 1 provided with a 15 seam S wherein transversal connecting ends E1 and E2 are connected to each other by means of seam loops, for example. Other type of seam structures and connecting members, such as seam spirals, may also be utilized. On the other hand, the textile 1 may comprise two or more seams, or alternatively, it has no seam at all. When the seam S is connected, the textile has a 20 shape of a closed loop. The textile 1 has a first surface P i.e. a product side surface, which is intended to be faced towards a product or fibre web being treated, supported or transported on the textile 1. A second surface R i.e. a roll or machine side surface of the textile is intended to be faced towards the paper machine, filter device, or any other process device utilizing industrial 25 textiles. As it is already discussed above, and will be demonstrated in Figures 2-4 below, at least one protective element PE is arranged on at least the first surface P of the textile.
Figures 2-4 also show that the protective elements PE are longitudinal and relatively narrow pieces, which are arranged at longitudinal edge 30 portions EP of the textile 1. The edge portions EP are not covered by a fibre web FB or corresponding product, but instead only a middle portion MP is carrying the fibre web FB. Further, Figures 2-4 are only for illustrative purposes and show the relative width of the edge portions EP and the middle portion MP in an exaggerated manner. Contrary to what has been shown in Figures 2-4 35 the second surface R may also comprise one or more protective elements PE on the edge portions, or alternatively and in some special implementations, the protective elements PE are only on the second surface R side.
Figure 4 shows that at the proximity of the seam S both connecting ends E1 and E2 may comprise tie back TB1, TB2 portions, wherein yams forming seaming loops or corresponding connecting elements are connected to basic structure of the textile 1. In Figure 4 the tie back TB1, TB2 is indicated by means of broken lines which define a seam area SA between them. The seam area SA and the tie back portions TB1, TB2 may be protected by means 5 of one uniform protective element PE1 or by means of two successive protective elements PE2 and PE3. However, it is possible to position one or more dedicated protective elements PE4 at desired positions on the textile 1.
Figures 5-7 disclose some embodiments of the industrial textile and the protective element. These issues are discussed already above.
Figure 8 discloses a roll of adhesive tape AT. The tape comprises a body B, a release liner RL and an adhesive layer AL. The tape may have properties discussed already above in this patent application together with some commercial examples.
The drawings and the specification associated thereto is merely in15 tended to illustrate the idea of the invention. The details of the invention may vary within the scope of the claims.

Claims (8)

PATENTTIVAATIMUKSET 1. Teollinen tekstiili (1), joka käsittää:1. Industrial textile (1) comprising: ensimmäisen pinnan (P) ja toisen pinnan (R);a first surface (P) and a second surface (R); 5 pitkittäiset reunaosuudet (EP1, EP2) ja keskiosuuden (MP) reunaosuuksien (EP) välissä; ja suojaamisvälineet, jotka on kiinnitetty tekstiilin (1) ainakin yhdelle pinnalle; suojaamisvälineet käsittävät ainakin yhden suojaelementin (PE), joka on yksittäinen elementti erillään teollisesta tekstiilistä (1) ja se on kiinnitetty 10 teollisen tekstiilin (1) pitkittäiselle reunaosuudelle (EP), joka suojaelementti (PE) on liimanauha (AT), tunnettu siitä, että liimanauha (AT) on tehty yhdestä tai useammasta lämpöä kestävästä materiaalista ja konfiguroitu kestämään korkeita, yli 90°C:n lämpötiloja, joka liimanauha (AT) käsittää joustavan rungon (B), joka on tehty ainakin yhdestä vaahtomuovista ja liimapinnasta 15 (AL), joka on teollisen tekstiilin (1) pintaa kohti.5 longitudinal edge portions (EP1, EP2) and middle portion (MP) between edge portions (EP); and protective means attached to at least one surface of the Textile (1); the protective means comprising at least one protective element (PE) which is a single element separate from the industrial textile (1) and is secured to the longitudinal edge portion (EP) of the industrial textile (1), the protective element (PE) being an adhesive tape (AT) the adhesive tape (AT) is made of one or more heat-resistant materials and configured to withstand high temperatures above 90 ° C, the adhesive tape (AT) comprising a flexible body (B) made of at least one foam and an adhesive surface 15 (AL), towards the surface of industrial Textile (1). 2. Patenttivaatimuksen 1 mukainen teollinen tekstiili, tunnettu siitä, että teollisen tekstiilin (1) kummatkin pitkittäiset reunaosuudet (EP) on varustettu ainakin yhdellä liimanauhalla (AT).Industrial textile according to claim 1, characterized in that each of the longitudinal edge portions (EP) of the industrial textile (1) is provided with at least one adhesive tape (AT). 3. Patenttivaatimuksen 1 tai 2 mukainen teollinen tekstiili, tunnettu siitä, että tekstiili (1) käsittää ainakin yhden poikittaissauman (S); ja ainakin yksi liimanauhoista (AT) sijaitsee sauman (S) kohdalla tai 25 sauman (S) lähellä.Industrial textile according to claim 1 or 2, characterized in that the textile (1) comprises at least one transverse seam (S); and at least one of the adhesive tapes (AT) is located at or near the seam (S). 4. Jonkin edellisen patenttivaatimuksen mukainen teollinen tekstiili, tunnettu siitä, että tekstiili (1) käsittää ainakin yhden poikittaissauman (S) ja kaksi vas30 iäkkäistä liitospäätä (E1, E2), joissa on useita saumasilmukoita, jotka on muodostettu usean konesuuntaisen (MD) langan avulla;Industrial textile according to any one of the preceding claims, characterized in that the textile (1) comprises at least one transverse seam (S) and two left-hand stitching ends (E1, E2) having a plurality of seam loops formed by a plurality of machine direction (MD) yarns. ; tekstiili (1) käsittää ainakin yhden ankkurointiosuuden (TB1, TB2), missä saumasilmukat muodostavat konesuuntaiset langat on yhdistetty tekstiilin (1) perusrakenteeseen; jathe textile (1) comprising at least one anchoring portion (TB1, TB2), wherein the machine direction yarns forming the seam loops are connected to the basic structure of the Textile (1); and 35 ainakin yksi tekstiilin (1) ankkurointiosuuksista (TB1, TB2) on varustettu ainakin yhdellä liimanauhalla (AT) estämään palaavat konesuuntaiset langat reunaosuuksissa (EP).At least one of the anchoring portions (TB1, TB2) of the Textile (1) is provided with at least one adhesive tape (AT) to prevent returning machine direction yarns at the edge portions (EP). 20165853 prh 21 -05- 201820165853 prh 21 -05- 2018 5. Jonkin edellisen patenttivaatimuksen mukainen teollinen tekstiili, tunnettu siitä, että tekstiili (1) on paperikoneessa käytettävä tekstiili;Industrial textile according to one of the preceding claims, characterized in that the textile (1) is a textile used in a paper machine; tekstiilin (1) ensimmäinen pinta (P) on tuotepuoli, joka on tarkoitettuThe first surface (P) of the textile (1) is the intended product side 5 olemaan kohti kuiturainaa (FB), jota paperikone on käsittelemässä, ja tekstiilin (1) toinen puoli (R) on konepuoli, joka on tarkoitettu olemaan kohti konetta; ja ainakin yksi liimanauha (AT) on järjestetty vain tekstiilin (1) tuotepuolelle (P).5 facing toward the fibrous web (FB) being processed by the paper machine and the other side (R) of the Textile (1) being the machine side intended to be facing the machine; and at least one adhesive tape (AT) is provided only on the product side (P) of the Textile (1). 1010 6. Suojaelementti (PE) teollista tekstiiliä (1) varten;6. Protective element (PE) for industrial textiles (1); tunnettu siitä, että suojaelementti (PE) on liimanauha (AT), joka on tehty yhdestä tai useammasta lämpöä kestävästä materiaalista ja konfiguroitu kestämään korkeita, yli 90°C:n lämpötiloja, joka liimanauha (AT) käsittää joustavan rungon (B), joka on tehty ainakin yhdestä vaahtomuovista 15 ja liimapinnasta (AL), joka on teollisen tekstiilin (1) pintaa kohti.characterized in that the protective element (PE) is an adhesive tape (AT) made of one or more heat-resistant materials and configured to withstand high temperatures above 90 ° C, the adhesive tape (AT) comprising a flexible body (B) made of at least one foam 15 and an adhesive surface (AL) facing the surface of the industrial Textile (1). 7. Menetelmä teollisen tekstiilin suojaamiseksi (1), missä menetelmä käsittää sen, että kiinnitetään suojaamisvälineet tekstiilin (1) ainakin yhdelle pinnalle 20 (P,R) tuomaan suojaa kuumuutta, kosteutta ja mekaanista rasitusta vastaan;A method of protecting industrial textiles (1), the method comprising affixing protective means to at least one surface 20 (P, R) of the Textile (1) to provide protection against heat, moisture and mechanical stress; tunnettu siitä, että käytetään suojaamisvälineinä ainakin yhtä liimanauhaa (AT), joka on yksittäinen elementti, joka on erillinen teollisesta tekstiilistä (1); ja kiinnitetään patenttivaatimuksen 6 mukainen ainakin yksi liimanau25 ha (AT) teollisen tekstiilin (1) pitkittäiselle reunaosuudelle (EP).characterized in that at least one adhesive tape (AT), which is a single element separate from the industrial textile (1), is used as protection means; and attaching at least one adhesive tape according to claim 6 to the longitudinal edge portion (EP) of an industrial textile (1). 8. Patenttivaatimuksen 7 mukainen menetelmä, tunnettu siitä, että kiinnitetään ainakin yksi liimanauha (AT) liimaliitoksella ainakin tekstiilin (1) poikittaissauman alueelle (SA).A method according to claim 7, characterized in that at least one adhesive tape (AT) is attached by an adhesive bond to at least the transverse seam region (SA) of the Textile (1).
FI20165853A 2016-11-14 2016-11-14 Industrial textile, protective element and method for protecting the industrial textile FI127770B (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
FI20165853A FI127770B (en) 2016-11-14 2016-11-14 Industrial textile, protective element and method for protecting the industrial textile

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FI127770B true FI127770B (en) 2019-02-15

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