EP3069647A1 - Cellulose tissu eponge avec des proprietes abrasives - Google Patents

Cellulose tissu eponge avec des proprietes abrasives Download PDF

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Publication number
EP3069647A1
EP3069647A1 EP16160849.2A EP16160849A EP3069647A1 EP 3069647 A1 EP3069647 A1 EP 3069647A1 EP 16160849 A EP16160849 A EP 16160849A EP 3069647 A1 EP3069647 A1 EP 3069647A1
Authority
EP
European Patent Office
Prior art keywords
sponge cloth
fibers
abrasive
adhesive
sponge
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.)
Granted
Application number
EP16160849.2A
Other languages
German (de)
English (en)
Other versions
EP3069647B1 (fr
Inventor
Dr. Leo Mans
Hans-Jürgen Theis
Dr. Norbert Tüschen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
Priority date (The priority date 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 date listed.)
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=52812325&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3069647(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Priority to PL16160849T priority Critical patent/PL3069647T3/pl
Publication of EP3069647A1 publication Critical patent/EP3069647A1/fr
Application granted granted Critical
Publication of EP3069647B1 publication Critical patent/EP3069647B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/16—Cloths; Pads; Sponges
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/02—Scraping
    • A47L13/06—Scraping with wire brushes or wire meshes

Definitions

  • Regenerated cellulose-based sponge cloths are currently used predominantly for cleaning, in particular with aqueous liquids which may also contain detergents. Essentially, the ability of the sponge cloth is used for fluid intake.
  • an internal reinforcement e.g. by a network in the interior of the sponge cloth or by fibers that are homogeneously distributed therein, the life of the sponge cloth can be increased for cleaning or it is only thereby suitable for special cleaning tasks without being destroyed.
  • the sponge cloth is too soft when wet and therefore does not develop any abrasive effect.
  • the sponge body has a weight of 35 to 55 kg / m 3 .
  • the viscose solution is added at least partially agglomerated, preferably rice-grain-shaped pore former from Glauber's salt. It is also possible to add cotton fibers as reinforcement.
  • the sponge body can also be provided with an abrasive layer.
  • the abrasive layer may consist of a binder and of abrasive particles of organic or inorganic origin.
  • Subject of the DE 10 2012 004 331 A1 is a cleaning device with a base made of foam, on the surface of which an abrasive flock material is arranged.
  • the flock fibers are partially enclosed in an adhesive matrix, partially protruding out of the matrix.
  • a similar cleaning cloth is in the DE 10 2010 054 009 A1 disclosed. It comprises a carrier on the surface of flock fibers are arranged island-shaped.
  • the carrier is preferably designed as a sponge.
  • a polishing material comprising a backing layer of foam, rubber or like material and a layer of microfibers thereon.
  • the carrier is preferably made of a closed cell foam rubber.
  • the microfibers have an average length of at least 50 mm and an average thickness of less than 1 denier. The relatively long and thin fibers have only a slight abrasive effect. The material can also absorb relatively little water.
  • the problem was solved with a sponge cloth based on regenerated cellulose, which is reinforced with an internal network or substantially homogeneously distributed fibers and flocked with synthetic fibers.
  • the abrasive effect can be adjusted by the choice of longer or shorter fibers as well as by the choice of thicker or thinner fibers for flocking as needed.
  • the cellulose-based sponge cloth is generally made by the viscose process using Glauber's salt as a pore former. As a mechanical reinforcement, it preferably contains in its interior a network and / or three-dimensionally distributed fibers. The reinforcing fibers are usually cotton fibers.
  • the sponge cloth generally has a density of 0.085 to 0.15 g / cm 3 in the dry state, preferably 0.10 to 0.12 g / cm 3 .
  • the thickness of the dry sponge cloth (before the application of the adhesive and the flock fibers) is generally 0.8 to 8.0 mm, preferably 1.0 to 3.0 mm.
  • the sponge cloth is flocked only on one side.
  • the proportion of the flocked surface, based on the total surface area of one side of the sponge cloth, is generally from 1 to 100%, preferably from 3 to 50%, particularly preferably from 5 to 30%.
  • the flocked areas are arranged so that no streaks are formed when wiping the sponge cloth over a surface to be cleaned, regardless of the direction of the wiping movement.
  • FIG. 1 A polyamide flock, 44 dtex, 0.5 mm fiber length, flocked sponge cloth according to the present invention is shown.
  • the dark circles represent the flocked areas.
  • Function, appearance and feel of a flock depend on the fiber thickness and length, with the fiber thickness measured in dtex (grams per 10,000 meters length) and the fiber length in millimeters. Generally, the thickness is between 0.5 dtex and 200 dtex, preferably between 1.0 and 100 dtex, and for the fiber length between 0.2 mm and 4.0 mm, preferably 0.4 to 2.0 mm.
  • the penetration depth into the adhesive is generally 0.1 mm to 0.5 mm. The fibers must not penetrate completely into the adhesive.
  • the fibers are generally arranged at an angle of 70 to 110 ° relative to the surface normal, thus being substantially at right angles to the surface of the sponge cloth.
  • the orientation of the fibers is crucial for the abrasive effect.
  • fibers can be used for flocking.
  • polyester fibers are best for outdoor applications, but show weakness in buckling stability.
  • Very good abrasive properties have polyamide-based fibers.
  • PA 6.6 also known as nylon. This fiber melts at 255 to 260 ° C and is application-related primarily in the titer range 0.9 dtex to 100 dtex used. The length varies from 0.3 mm to 4.0 mm.
  • Polyamide flock has a high abrasion resistance and a very good resilience after compression (kink stability). The UV stability is sufficient in most cases.
  • the fibers can have different shapes.
  • "simple" fibers having a circular cross section hollow fibers, bi-and multicomponent fibers, such as core / sheath fibers, side-by-side fibers or island-in-sea fibers, or fibers having a non-round cross-sectional shape, may also be used. for example, with a square, star-shaped or other cross-sectional shape, are used.
  • the sponge cloth fibers may also be used for flocking containing fillers with abrasive properties.
  • other materials can be used for the gentle cleaning of heavily contaminated sensitive surfaces instead of the flock fiber.
  • these materials e.g., nut shell granules, wood flour (hardwood), corn meal, plastic flour, etc.
  • these materials must also be sufficiently electrostatically chargeable.
  • the chargeability may optionally be achieved by coating the fibers with various salts. Applying the same processes as electrostatic flocking will provide sufficient adhesion between substrate, adhesive and abrasive material.
  • a method for abrasive cleaning of sponge is e.g. the flocking technique.
  • the flocking cloth may be flocking (for full-surface flocking of one or both sides) and design flocking (patterns, logos, logos, etc. using a template or screen).
  • the flocking is done either manually, semi or fully automatically in the electrostatic field.
  • the application of the electrically conductive adhesive is carried out by various printing processes (tampon, screen or letterpress in surface or rotational form), but can also be done by spraying, brushing, dipping or rolling.
  • the adhesive-specific properties such as viscosity and thixotropy, rheology (flow behavior), open time, pot life and atomization must be taken into account. It has been found convenient to apply the adhesive in an amount of from 0.01 to 0.30 grams, preferably from 0.02 to 0.20 grams, per square centimeter of the sponge cloth surface to be flocked.
  • the adhesive can be solvent-based or dispersion-based consisting of 1 or 2 components, polyurethane-based, be a hot melt adhesive or chemically covalently react with the surface of the substrate, such as. B. polyisocyanate with sponge cloth.
  • pretreatment of the substrate prior to application of the adhesive such as roughening, sanding, primer treatment, plasma priming, or corona discharge treatment, may also be desirable.
  • the adhesive should be sufficiently flexible in the cured state and, in addition to a wash resistance of up to 95 ° C., should also be resistant to UV radiation. Also, the adhesive of the color of the flock should be dyed accordingly.
  • the flock fibers acted upon by an electrical charge are aligned in an electric field perpendicular to the substrates so that the fibers dip longitudinally in the still wet adhesive applied to the substrate. It is essential to ensure that the adhesive layer is applied in sufficient thickness so that the flock fibers can be optimally anchored in the adhesive bed. Only when the fibers are fixed at approximately the right angle to the surface of the sponge cloth in the adhesive, they can develop the desired abrasive effect.
  • All fibers must have sufficient electrostatic chargeability. This can be achieved by appropriate fiber preparation (e.g., by coating with salts). During flocking, a certain humidity and temperature must be maintained to ensure the conductivity of the fiber.
  • filaments e.g. Viscose fibers containing on their surface carbides, in particular silicon or boron carbides. These are completely abrasive, so that alignment of such fibers in the adhesive is not required. The fiber should not be completely immersed in the adhesive. The same applies to fibers provided with corundum or boron nitride.
  • Another way of gently removing a moderate to heavy soiling is the application of a hard, viscous adhesive or a screen printing ink, in which an abrasive medium or other abrasive Abrasiva were introduced to further increase the abrasive effect.
  • the application can be done, for example, in a design printing process.
  • alignment of the abrasive is no longer possible and not required.
  • the adhesive is desirably selected to be the same extent as the sponge cloth when using the sponge cloth Abrasiva itself is removed. In this way it is ensured that the abrasive effect is maintained over the maximum period. Patterns, logos, logos, etc.
  • the sponge cloth are applied to the sponge cloth using a template or a sieve; a small part of the glue or paint is anchored in the substrate, but the greater part is raised on the sponge cloth.
  • the solvent- or dispersion-based 1- or 2-component adhesive or the printing ink have cured, dirt particles can be released from the surface to be cleaned by reciprocating movements under pressure on the adhesive-coated or color-coated part of the sponge cloth during the cleaning process or stick to the edges of the three-dimensional adhesive or paint and can be completely absorbed with the clean back of the sponge cloth.
  • the abrasiveness is adjustable by the hardness of the adhesive or color to be used. It is also possible to color the glue.
  • hot melt adhesives also known as hot melt adhesives, hot melt or hotmelt
  • Hotmelt adhesives are solvent-free and at room temperature more or less solid products, which are applied to the adhesive surface when hot and establish a firm bond with the substrate on cooling. Again, the greater proportion of flock fibers is substantially perpendicular to the plane of the sponge cloth and is responsible for the abrasive effect.
  • the ingredients of the hot melt adhesives are based on base polymers, resins, stabilizers, wax and nucleating agents and are selected according to their adhesion to the substrate, processing temperature, heat resistance, chemical resistance and hardness.
  • the sponge cloth which is equipped with abrasive flock fibers for gentle removal of stuck contaminants from surfaces, the surfaces remaining as unscathed as possible.
  • hard material grains also called abrasives and abrasive abrasives, usually consist of corundum on a natural or synthetic basis (alumina, corundum, semi-precious corundum, normal corundum, etc.), silicon carbide, diamond, boron nitride, quartz, metal powder, glass granules / glass powder, garnet, emery (Mixture of corundum, magnetite, hematite and quartz) and many others.
  • the surface coating for a full-surface coating on one or both sides
  • the design coating patterns, logos, lettering, etc. by means of a template or a screen
  • the coating is done either manually, semi or fully automatically in the electrostatic field.
  • the hard material grains loaded with an electrical charge are aligned in an electric field perpendicular to the substrates, so that the grains dip in the still wet adhesive applied to the substrate.
  • the sponge cloth is vibrated by shaking so that the hard material grains penetrate deeper into the adhesive and thus be more firmly (more durable) enclosed by the adhesive.
  • a sponge cloth made by the viscose process was initially freed from dust. Then an electrically conductive adhesive consisting of a dispersion ®MECOFLOCK D 585 WFP and 10% hardener ®MECODUR H 5580 was applied to the sponge cloth through a screen 21-140 PA by screen printing by 3 doctoring passes in a thickness of about 1.5 mm ,
  • the sponge cloth prepared in this way was treated with flock fibers consisting of polyamide 6.6 having a titre of 50 dtex and a length of 1.2 mm. For this purpose, they were longitudinally aligned in the electric field with a voltage of 40 KV, so that they could penetrate into the liquid adhesive about 0.2 mm at almost right angles to the surface of the sponge cloth.
  • the non-adhesive fibers were then vacuumed using a vacuum cleaner.
  • a sponge cloth made by the viscose process was initially freed from dust. Then, a MECOFLOCK D 564/1 adhesive in which a PA6 flock was blended with a dtex 44 was screen-printed on the sponge cloth through a 10-180PA screen by 5 doctor blade passes of 2 mm thickness.
  • the adhesive contained 30% corundum as an abrasive additive and was chemically covalently fixed to the sponge cloth with 5% hardener MECODUR H 5580 during drying.
  • a sponge cloth made by the viscose process was initially freed from dust. Then, a MECO FLOCK D5641 / 1 adhesive was mixed with PA6 flock fibers of 1.5 mm average length. This mixture was applied to the cellulose sponge cloth in a screen printing process of the desired design.
  • the sponge cloths according to Examples 1 to 3 showed a very good abrasive effect, which persisted over their entire service life.

Landscapes

  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP16160849.2A 2015-03-17 2016-03-17 Cellulose tissu eponge avec des proprietes abrasives Active EP3069647B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16160849T PL3069647T3 (pl) 2015-03-17 2016-03-17 Celulozowa ścierka gąbczasta o właściwościach abrazyjnych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201520101364 DE202015101364U1 (de) 2015-03-17 2015-03-17 Cellulose-Schwammtuch mit abrasiven Eigenschaften

Publications (2)

Publication Number Publication Date
EP3069647A1 true EP3069647A1 (fr) 2016-09-21
EP3069647B1 EP3069647B1 (fr) 2021-05-12

Family

ID=52812325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16160849.2A Active EP3069647B1 (fr) 2015-03-17 2016-03-17 Cellulose tissu eponge avec des proprietes abrasives

Country Status (5)

Country Link
EP (1) EP3069647B1 (fr)
CY (1) CY1124268T1 (fr)
DE (1) DE202015101364U1 (fr)
ES (1) ES2874002T3 (fr)
PL (1) PL3069647T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020126904A1 (de) 2020-10-13 2022-04-14 a&n&a GmbH & Co. KG Reinigungsschwamm und verfahren zu seiner herstellung
CN115246101A (zh) * 2021-04-25 2022-10-28 苏州三鼎纺织科技有限公司 光学玻璃抛光用磨皮及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2018009894A (es) 2016-02-26 2018-09-07 3M Innovative Properties Co Articulo de fregar de consumo con capa de textura libre de solvente y metodo para fabricarlo.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050060829A1 (en) 2003-09-22 2005-03-24 Silvers Gary M. Polishing and buffing pad
US20060123573A1 (en) * 2002-09-05 2006-06-15 Rivera Maria Del Carmen M Flocked substrates for use as scouring materials
DE102006005984A1 (de) * 2006-02-08 2007-08-09 Carl Freudenberg Kg Reinigungstuch
DE102009013515A1 (de) 2009-03-19 2010-09-23 Carl Freudenberg Kg Verfahren zur kontinuierlichen Herstellung von Schwammkörpern aus regenerierter Cellulose und ein Schwammkörper
DE102010054009A1 (de) 2010-12-09 2012-06-14 Carl Freudenberg Kg Reinigungseinrichtung
DE102012004331A1 (de) 2012-03-07 2013-09-12 Carl Freudenberg Kg Reinigungsgerät mit Schaumstoff

Family Cites Families (9)

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US2540906A (en) 1947-06-05 1951-02-06 Burgess Cellulose Company Artificial chamois skin and method of making the same
US2671743A (en) 1952-04-23 1954-03-09 Celloplast Ab Artificial sponge cloth
US3197327A (en) 1961-09-27 1965-07-27 Du Pont Manufacture of rot resistant sponges
DE4322871A1 (de) 1993-07-09 1995-01-12 Coronet Werke Gmbh Mittel zum Reinigen oder Behandeln von Oberflächen und Verfahren zu ihrer Herstellung
DE19753546A1 (de) 1997-12-03 1999-06-10 Kalle Nalo Gmbh Schwammtuch auf Cellulosebasis und Verfahren zu dessen Herstellung
DE102005007270A1 (de) 2005-02-17 2006-08-24 Kalle Gmbh Schwammtuch, Verfahren zu seiner Herstellung und seine Verwendung
GB0603875D0 (en) 2006-02-28 2006-04-05 3M Innovative Properties Co Wear indicator for a flocked scouring material
DE102007050902A1 (de) 2007-10-23 2009-04-30 Carl Freudenberg Kg Reinigungsartikel
DE102010009852A1 (de) 2010-03-02 2011-09-08 Kalle Gmbh Antimikrobiell ausgerüstete Folien, Schwämme und Schwammtücher

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060123573A1 (en) * 2002-09-05 2006-06-15 Rivera Maria Del Carmen M Flocked substrates for use as scouring materials
US20050060829A1 (en) 2003-09-22 2005-03-24 Silvers Gary M. Polishing and buffing pad
DE102006005984A1 (de) * 2006-02-08 2007-08-09 Carl Freudenberg Kg Reinigungstuch
DE102009013515A1 (de) 2009-03-19 2010-09-23 Carl Freudenberg Kg Verfahren zur kontinuierlichen Herstellung von Schwammkörpern aus regenerierter Cellulose und ein Schwammkörper
DE102010054009A1 (de) 2010-12-09 2012-06-14 Carl Freudenberg Kg Reinigungseinrichtung
DE102012004331A1 (de) 2012-03-07 2013-09-12 Carl Freudenberg Kg Reinigungsgerät mit Schaumstoff

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020126904A1 (de) 2020-10-13 2022-04-14 a&n&a GmbH & Co. KG Reinigungsschwamm und verfahren zu seiner herstellung
CN115246101A (zh) * 2021-04-25 2022-10-28 苏州三鼎纺织科技有限公司 光学玻璃抛光用磨皮及其制备方法

Also Published As

Publication number Publication date
DE202015101364U1 (de) 2015-03-20
PL3069647T3 (pl) 2021-11-29
EP3069647B1 (fr) 2021-05-12
CY1124268T1 (el) 2022-07-22
ES2874002T3 (es) 2021-11-04

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