GB2523068A - Food production safe adhesive tape - Google Patents

Food production safe adhesive tape Download PDF

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Publication number
GB2523068A
GB2523068A GB1320875.6A GB201320875A GB2523068A GB 2523068 A GB2523068 A GB 2523068A GB 201320875 A GB201320875 A GB 201320875A GB 2523068 A GB2523068 A GB 2523068A
Authority
GB
United Kingdom
Prior art keywords
adhesive tape
food production
production safe
user
colour
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.)
Withdrawn
Application number
GB1320875.6A
Other versions
GB201320875D0 (en
Inventor
Murray Sellars
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.)
WELL ABLE Ltd
Original Assignee
WELL ABLE Ltd
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.)
Filing date
Publication date
Application filed by WELL ABLE Ltd filed Critical WELL ABLE Ltd
Priority to GB1320875.6A priority Critical patent/GB2523068A/en
Publication of GB201320875D0 publication Critical patent/GB201320875D0/en
Publication of GB2523068A publication Critical patent/GB2523068A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/02—Halogenated hydrocarbons
    • C08K5/03—Halogenated hydrocarbons aromatic, e.g. C6H5-CH2-Cl
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09J133/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/007—Fragrance additive
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0041—Optical brightening agents, organic pigments
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/41—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the carrier layer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Adhesive Tapes (AREA)

Abstract

Disclosed is a food-production-safe adhesive tape 10, for use in food packaging applications to package food items or containers thereof. The adhesive tape 10 comprises a carrier substrate 12 provided with an adhesive layer 14. An aromatic additive impregnated within the adhesive layer 14 alters the scent thereof, thus facilitating olfactory identification of the adhesive tape 10 by a user. Colour pigmentation, comprising a food-production-safe dye, may also be incorporated within the adhesive layer 14 in order to facilitate visual identification of the adhesive tape 10 by a user. The intensity of the scent and colour is adapted so as to be discernible to a user when the adhesive tape 10 is layered on a roll, yet weak enough that it is substantially non-detectable when applied as a single layer in food packaging applications. The food-production-safe adhesive tape 10 can be easily distinguishable from other adhesive tapes by its user.

Description

Food Production Safe Adhesive Tape The present invention relates to a food production safe adhesive tape, particularly, but not exclusively, a food production safe adhesive tape used in food packaging applications to package food items or containers thereof.
Adhesive tape is often used in packaging food items. As with all products used in such environments, adhesives tapes must be food production safe in order to avoid contaminating or otherwise adversely affecting food items. Furthermore, they must also be effective in a processing environment where there are a range of temperatures and humidity levels. A number of different food production safe adhesive tapes have been developed over the years; however, these vary dramatically in their safety, adhesion and strength qualities. Furthermore, due to the inherent colourless and transparent nature of such adhesive tapes, it can be very difficult to identify a specified adhesive tape from its physical attributes without expensive test equipment. As a result, poorer quality adhesive tape is only identified in use, at which point it is normally too late to be rectified.
According to a first aspect of the present invention there is provided a food production safe adhesive tape comprising a carrier substrate having an adhesive layer, and an aromatic additive adapted to alter the scent of the adhesive tape in order to facilitate olfactory identification of the tape by the user.
Further features and advantages of the present invention will become apparent from the claims appended hereto, and from the following description.
Embodiments of the present invention will now be described by way of example only, with reference to the following diagrams, in which Fig. 1 is an illustration of a portion of food production safe adhesive tape of the present invention.
As shown in Fig. 1, a portion of adhesive tape 10 comprises a carrier substrate 12 onto which an adhesive layer 14 is applied.
In the present embodiment, the carrier substrate 12 comprises a strip of clear polypropylene carrier material; however, any suitable carrier material (such as for example a cellulose film) could instead be utilised.
The adhesive layer 14 comprises a pressure-sensitive water based acrylic adhesive. In the present embodiment the particular water based acrylic adhesive utilised is PRIMALTM PS 2001 LS manufactured by The Dow Chemical Company; however, the skilled reader will appreciate that different forms of adhesive such as emulsion acrylic adhesives (e.g. RHOPLEX N-i 031 Emulsion manufactured by The Dow Chemical Company, AQUENCE® PS Emulsion Acrylics manufactured by Henkel AG & Co. KGaA, or POWERTAC -60 manufactured by Power Chemical Industries Pvt Ltd.) could alternatively be utilised. In their normal form, such adhesives are inherently clear with substantially no colour pigmentation; however, in the present invention it is impregnated with a stable colour pigmentation dye such as Chromatint® Blue 0408 Liquid manufactured by Chromatech Incorporated.
The intensity of pigmentation provided by the pigmentation dye in the adhesive layer 14 is configured during manufacture to be sufficiently strong to allow a user to discern the colour thereof when several adhesive layers are arranged adjacent one another (e.g. when provided on a roll of tape) but is weak enough that it is substantially non-visible to the user when only a single thin layer is viewed. In the present embodiment of the invention this is achieved by providing the pigmentation dye in a concentration range of between 1 to 2%; however, the skilled reader will appreciate that different concentrations may be used and this can also be varied by varying the colour intensity and I or type of the dye and / or the thickness of the layer of adhesive used in any particular application.
The adhesive layer 14 is also impregnated with a food production safe aromatic additive in order to create a distinctive scent which allows a user to olfactorily identify the food production safe adhesive tape. In the present embodiment this comprises an aromatic additive comprising a mixture of natural oils and synthetic raw materials such as NARGUILE 6892 DEO/SUPER CONC/5A manufactured by Muller Grol3handels Ltd. & Co. KG; however, alternative aromatic additives may be utilised.
The intensity of the scent provided by the aromatic additive in the adhesive layer 14 is configured during manufacture to be sufficiently strong to allow an average user to detect when several layers of adhesive tape 10 are arranged adjacent one another (e.g. when provided on a substrate roll) but is weak enough that it is much less detectable by the average user in only a single layer of adhesive tape 10. In the present embodiment of the invention this is achieved by providing the aromatic additive in a concentration range of between 0.25 -0.5%; however, the skilled reader will appreciate that different concentrations may be used and this can also be varied by varying the aromatic additive used and / or the thickness of the adhesive layer 14.
The non-volatile nature of the aromatic additive means that it does not adversely affect the adhesive properties of the adhesive layer 14.
Through conditioning and/or instinct many users have a tendency to associate particular colours with particular scents and vice-versa. The choice of aromatic additive and colour additive may therefore be selected with this in mind.
In use, when the adhesive tape 10 is provided on a roll, several layers of the tape will be layered upon one another around the roll. This results in an accumulation of colours (from the relatively faint colour of each layer of tape 10) such that a relatively vivid resultant colour is observed by the user. As the adhesive tape 10 is gradually used up overtime, eventually only a few layers of the tape will remain; however, this is not a problem since the colour observed by the user can be enhanced by providing the roll with a similarly coloured core which can be seen through those last few layers of adhesive tape 10.
In addition, when the adhesive tape lOis provided on a roll, an accumulation of the scents from the faint aromatic scent of each layer of tape 10 is created such that a subtle yet distinctive scent is sensed by the user. However, when the user applies the adhesive tape 10 to e.g. a food packaging carton, the relatively faint nature of the colour and smell of a single layer of the adhesive tape 10 means that no colour or scent is easily discernible in the single layer of applied adhesive tape 10.
Furthermore, when a layer of adhesive tape 10 is peeled from its roll, the adhesive layer 14, and hence the impregnated aromatic additive, are temporarily exposed to the surrounding air. Such exposure temporarily increases the evaporation rate of the adhesive and impregnated aromatic additive thereby increasing the aroma detected by a user at this stage. Therefore, when a user peels a small section of tape away from the roll the aroma detected by the user is temporarily intensified.
However, once the roll is returned to the roll, or applied to packaging in use, the intensity of the aroma decreases.
The resulting distinctive appearance and scent of the adhesive tape 10 when accumulated together into a number of layers therefore allows a user distinguish the food production safe adhesive 10 from other types of tape easily, quickly and reliably. However, this does not adversely affect the suitability of the end product in any way.
Although particular embodiments of the invention have been disclosed herein in detail, this has been done by way of example and for the purposes of illustration only. The aforementioned embodiments are not intended to be limiting with respect to the scope of the appended claims.
It is contemplated by the inventors that various substitutions, alterations, and modifications may be made to the invention without departing from the spirit and scope of the invention as defined by the claims. Examples of these include the following: -Although in the described embodiment, the colour additive is impregnated into the adhesive layer 14, it could alternatively be impregnated into the carrier substrate 12.

Claims (16)

  1. CLAIMS1. A food production safe adhesive tape comprising a carrier substrate having an adhesive layer; and an aromatic additive adapted to alter the scent of the adhesive tape in order to facilitate olfactory identification of the tape by a user.
  2. 2. A food production safe adhesive tape according to claim 1, wherein the aromatic additive is impregnated into the adhesive layer.
  3. 3. A food production safe adhesive tape according to either of claims 1 or 2, further comprising a colour additive adapted to alter the colour pigmentation of the adhesive tape in order to facilitate visual identification of the tape by the user.
  4. 4. A food production safe adhesive tape according to claim 3, wherein the scent provided by the aromatic additive is configured to match that which would be expected by a user based upon the colour pigmentation provided.
  5. 5. A food production safe adhesive tape according to either of claims 3 or 4, wherein the colour additive is provided in the carrier substrate.
  6. 6. A food production safe adhesive tape according to either of claims 3 or 4, wherein the colour additive is provided in the adhesive layer.
  7. 7. A food production safe adhesive tape according to any of claim claims 3 to 6, wherein the colour additive comprises a food production safe dye.
  8. B. A food production safe adhesive tape according to any preceding claim, wherein the aromatic additive comprises a non-volatile food production safe aromatic additive.
  9. 9. A food production safe adhesive tape according to any of claims 3 to 8, wherein the intensity of pigmentation provided by the colour additive is sufficiently strong to allow a user to identify the colour pigmentation when a plurality of strips of adhesive tape are layered upon one another but is weak enough that it is substantially non-visible to the user in a single layer of said food production safe adhesive tape.
  10. 10. A food production safe adhesive tape according to claim 9, wherein the colour additive is provided in a concentration range of between 1 to 2 %.
  11. 11. A food production safe adhesive tape according to any preceding claim, wherein the intensity of scent provided by the aromatic additive is sufficiently strong to allow a user to discern the scent thereof when a plurality of strips of adhesive tape are layered adjacent one another but is weak enough that it is substantially non-detectable in a single layer of said food production safe adhesive tape.
  12. 12. A food production safe adhesive tape according to claim 11, wherein the aromatic additive is provided in a concentration range of between 0.25 -0.5%.
  13. 13. A method of providing a food production safe adhesive tape which is distinguishable from other adhesive tapes, the method comprising providing a carrier substrate having an adhesive layer and applying an aromatic additive to the adhesive tape to alter the scent of the adhesive tape in order to facilitate olfactory identification of the tape by a user.
  14. 14. A method according to claim 13, further comprising providing a colour additive adapted to alter the colour pigmentation of the adhesive tape in order to facilitate visual identification in addition to olfactory identification of the tape by the user.
  15. 15. A food production safe adhesive tape substantially as hereinbefore described with reference to Fig.1.
  16. 16. A method of providing a food production safe adhesive tape substantially as hereinbefore described with reference to Fig. 1.
GB1320875.6A 2013-11-27 2013-11-27 Food production safe adhesive tape Withdrawn GB2523068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1320875.6A GB2523068A (en) 2013-11-27 2013-11-27 Food production safe adhesive tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1320875.6A GB2523068A (en) 2013-11-27 2013-11-27 Food production safe adhesive tape

Publications (2)

Publication Number Publication Date
GB201320875D0 GB201320875D0 (en) 2014-01-08
GB2523068A true GB2523068A (en) 2015-08-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB1320875.6A Withdrawn GB2523068A (en) 2013-11-27 2013-11-27 Food production safe adhesive tape

Country Status (1)

Country Link
GB (1) GB2523068A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030105183A1 (en) * 2001-12-05 2003-06-05 Sharak Matthew L. Scented hot melt adhesives
US20080132625A1 (en) * 2005-06-30 2008-06-05 Erik Niehaus Perfumed Melt Adhesive
CN201817431U (en) * 2010-09-30 2011-05-04 王振宇 Aromatic adhesive tape

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030105183A1 (en) * 2001-12-05 2003-06-05 Sharak Matthew L. Scented hot melt adhesives
US20080132625A1 (en) * 2005-06-30 2008-06-05 Erik Niehaus Perfumed Melt Adhesive
CN201817431U (en) * 2010-09-30 2011-05-04 王振宇 Aromatic adhesive tape

Also Published As

Publication number Publication date
GB201320875D0 (en) 2014-01-08

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)