NL2016949B1 - Composition for absorbing moist; method and transportation equipment for food products using said composition; and method of manufacturing said composition for absorbing moist - Google Patents

Composition for absorbing moist; method and transportation equipment for food products using said composition; and method of manufacturing said composition for absorbing moist Download PDF

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Publication number
NL2016949B1
NL2016949B1 NL2016949A NL2016949A NL2016949B1 NL 2016949 B1 NL2016949 B1 NL 2016949B1 NL 2016949 A NL2016949 A NL 2016949A NL 2016949 A NL2016949 A NL 2016949A NL 2016949 B1 NL2016949 B1 NL 2016949B1
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NL
Netherlands
Prior art keywords
composition
glycerol
superabsorbent polymer
glycerin
viscous substance
Prior art date
Application number
NL2016949A
Other languages
Dutch (nl)
Inventor
Van Dijk Dirk
Vermeer Mike
Original Assignee
Lamb-Weston/Meijer V O F
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Publication date
Application filed by Lamb-Weston/Meijer V O F filed Critical Lamb-Weston/Meijer V O F
Priority to NL2016949A priority Critical patent/NL2016949B1/en
Priority to NL2019052A priority patent/NL2019052B1/en
Application granted granted Critical
Publication of NL2016949B1 publication Critical patent/NL2016949B1/en

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/28—Selection of materials for use as drying agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/262—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/144—Alcohols; Metal alcoholates
    • D06M13/148—Polyalcohols, e.g. glycerol or glucose
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/05—Cellulose or derivatives thereof
    • D06M15/09—Cellulose ethers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/11—Starch or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/285—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/31—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated nitriles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
    • D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/53—Polyethers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/08—Processes in which the treating agent is applied in powder or granular form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
    • B01J2220/68—Superabsorbents

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Packages (AREA)

Abstract

The invention relates to a composition for absorbing moist from a confined environment having an elevated temperature in comparison with room temperature. This composition is partic- ularly usable when transporting food products that deteriorate in a moist environment. Correspondingly the invention further relates to a method and transportation equipment for food prod- ucts using said composition. Further the invention relates to a method of manufacturing said composition for absorbing moist.

Description

Composition for absorbing moist; method and transportation equipment for food products using said composition; and method of manufacturing said composition for absorbing moist
The invention relates to a composition for absorbing moist or vaporized water from a confined environment having an elevated temperature in comparison with room temperature. This composition is particularly usable when transporting food products that deteriorate in a moist environment. Correspondingly the invention further relates to a method and transportation equipment for food products using said composition. Further the invention relates to a method of manufacturing said composition for absorbing moist.
In the applicant's still unpublished co-pending application NL 2015918 relating to a packet for french fries it is remarked that in general the prior art packet is unsuitable for french fries because the fries do not survive an extended stay or holding time in the packets without losing their bite. In the following the invention will be exemplified with reference to the transportation of french fries, although the invention is not limited to this application. As already mentioned in the introduction the invention relates to a composition which is particularly usable when transporting food products that deteriorate in a moist environment. Consequently the invention is also applicable on other food products.
When consumers order french fries to be delivered at their home, they require that on delivery the fries still have their crispy texture. Investigations have shown that a minimum holding time for french fries of at least 20 minutes is required, whereafter the fries still must be crispy and meet a so-called crunching test to determine the crispiness of the fries by chewing. Reportedly a good crispiness requires at least five times chewing wherein the fries generate crunchiness in the mouth. The said 20 minutes corresponds to the maximum delivery time which is used in practice for delivery of fries .
Providing the french fries on delivery or providing other food products on delivery that are sensitive to extended stays in a moist environment is normally done making use of transportation equipment, comprising a heatable but not necessarily heated enclosure for the food products. It is also possible that the enclosure arrives at an elevated temperature due to the heated food products being placed therein. A known commercially available means of transport comprises a bag with a closable lid, wherein a heating plate is provided that can be heated through induction. Heating the heating plate requires therefore an induction plate which may be separate from the heatable enclosure.
For transport the food products are provided in the bag with the lid closed, and the food products are as much as possible maintained at the required temperature by means of the preheated heating plate which loses its heat over time, since during transport its heating by induction is normally interrupted. The heat in combination with the moist of the food products inside of the bag cause a high relative humidity inside of the bag which deteriorates the quality of the food products. As mentioned with the example of the french fries, the food products may take at least 20 minutes from its origin to the delivery point, and the ambition of the inventors is to provide a solution to the problem that the food products without further measures will suffer an impaired quality and lose their attractiveness for the consumer. For french fries this means that the challenge is to maintain the above-mentioned crispiness during an extended stay of at least 20 minutes in the transportation bag, corresponding to a maximum delivery time of 20 minutes for the fries. During transportation the relative humidity of the confined environment must be brought as quickly as possible as below 60%.
According to the invention the problem is addressed by providing a composition for absorbing moist; a method and transportation equipment for food products using said composition; and a method of manufacturing said composition for absorbing moist, all in accordance with one or more of the appended claims.
Features of the invention will now be discussed with reference to the just mentioned different subjects of the invention .
In a first aspect of the invention the composition comprises glycerine or glycerol. Glycerin or glycerol are within the scope of this application interchangeable terms. Glycerine is also known by its E-number E422 and is an organic compound. Glycerol refers to the major ingredient of glycerin. Glycerol is a thick, viscous, clear, odorless liquid with a sweet taste derived from animal fat and vegetable oil. It is allowed by the US Food and Drug Administration as generally recognized as safe and complies with specifications for the Food Chemicals Codex for application with food products. It's molecular formula is C3H5(OH)3 and its technical name is propan-1,2,3 triol. Glycerin or glycerol can be effectively applied for absorbing moist from a heatable or heated enclosure in order to delay the deterioration of the food products quality.
In a second aspect of the invention the composition comprises also a superabsorbent polymer. It is found that particularly the application of a superabsorbent polymer in combination with glycerin or glycerol unexpectedly and synergis-tically contributes to the moist binding properties of the composition. Superabsorbent polymer is authorized to be applied in combination with food without direct contact.
Suitably the superabsorbent polymer is a water binding salt. The superabsorbent polymer is preferably one selected from the group comprising poly-acrylic acid sodium salt; polyacrylamide copolymer, ethylene maleic anhydride copolymer, cross-linked carboxymethylcellulose, polyvinyl alcohol copolymers, cross-linked polyethylene oxide, and starch grafted copolymer of polyacry-lonitrile.
Particularly preferential is that the composition comprises glycerin or glycerol as well as a superabsorbent polymer, wherein the superabsorbent polymer is in contact with the glycerin or glycerol. This provides that the superabsorbent polymer attracts moist from the glycerine or glycerol so as to reduce the glycerin's water content. This in turn promotes the effectivity of the glycerin or glycerol to attract water from its environment in the enclosure.
It is most effective when the superabsorbent polymer is provided in the form of beads or pastilles. The dimensions of the beads or pastilles can be chosen to suit the situation best. The beads or pastilles can for instance have an average diameter of 1,5 mm. It is however also possible to apply larger or smaller beads or pastilles.
To promote an effective application of the composition it is beneficial that the glycerine or glycerol and/or the superabsorbent polymer is provided on a carrier material, wherein it is preferred that the carrier material is a water and air permeable material. Although there is no particular preference, this carrier material may be paper. Suitably the carrier material is formed as a bag or packet.
According to the invention further transportation equipment for food products, such as convenience food like fries or hamburgers is proposed, comprising a heatable but not necessarily heated enclosure for the food products, which enclosure is provided with a composition as disclosed herein.
The invention is also embodied in a method of manufacturing a composition for absorbing moist from a confined environment having an elevated temperature in comparison with room temperature. According to the invention this method is characterized in that in a prior treatment or posttreatment of a viscous cloth, glycerine or glycerol is provided in respectively on said viscous cloth. The viscous cloth can then be deemed the carrier of the glycerin or glycerol.
According to in the invention two notable embodiments of the method of the invention are proposed.
In a first embodiment of the method, wherein glycerine or glycerol is in a prior treatment impregnated in the viscous cloth, the method has the feature that a superabsorbent polymer is provided on the viscous cloth, whereafter said viscous cloth is provided between covering layers, at least one of which is water and air permeable.
In a second embodiment of the method, wherein glycerin or glycerol is provided in an aftertreatment on the viscous cloth, the method has the feature that a superabsorbent polymer is impregnated in the viscous cloth, whereafter said viscous cloth is provided between covering layers, at least one of which is water and air permeable, and that the glycerin or glycerol is provided thereafter on the water and air permeable cover .
The invention will hereinafter be further elucidated with reference to the drawing of two exemplary embodiments of an apparatus for manufacturing a composition according to the invention that is not limiting as to the appended claims. Further reference is made to the drawing of some graphs showing the results of the invention in reducing the moisture content in a bag of fries in comparison with the prior art.
In the drawing: -figure 1 shows a first manufacturing scheme for a composition according to the invention; -figure 2 shows a second manufacturing scheme for a composition according to the invention; -figures 3, 4 and 5 show the development of the moisture content in a heated bag filled with one kilogram of fries during a timeframe of 25 minutes.
Whenever in the figures the same reference numerals are applied, these numerals refer to the same parts.
Referring first to figure 1 a first embodiment of a method of manufacturing a composition for absorbing moist is shown, wherein first a prior treatment of a viscous cloth 1 is executed, by impregnating glycerine or glycerol 2 in said viscous cloth 1. Thereafter a superabsorbent polymer 3 is provided on the viscous cloth 1, followed by providing said viscous cloth 1 between covering layers 4, 5, at least one of which is water and air permeable. A first covering layer 4 is for instance a cardboard, the other covering layer 5 is then a water and air permeable cover, for instance a nonwoven material, such as paper. The superabsorbent polymer 3 is provided on the viscous cloth 1 in the form of beads of pastilles with an average diameter of approximately 1.5 mm. This manufacturing method provides a continuous web of the composition according to the invention on a carrier embodied as the viscous layer 1. For further application the continuous web is to be cut and sealed at its edges to secure the integrity of the packaged composition when later used in a transportation bag for transport of food products.
Making reference now to figure 2 a second embodiment of a method of manufacturing a composition for absorbing moist is shown, wherein glycerin or glycerol 2 is provided in an aftertreatment on the viscous cloth 1. In this second embodiment a superabsorbent polymer 3 is first impregnated in the viscous cloth 1, whereafter said viscous cloth 1 is provided between covering layers 4, 5, at least one of which is water and air permeable. The glycerin or glycerol 2 is afterwards provided on the water and air permeable cover 5. In this second embodiment of the method of manufacturing the composition of the invention a continuous web of this composition can be provided, although it is also possible to provide a preliminary cutting of the web by cutter 6'. Figure 2 further shows that it is also possible to include a joint cutting 6 and sealing 7 operation after application of the covering layers 4, 5 to the composition so as to provide separate packets wherein the operable composition of the invention is packed and sealed, and made suitable for application in a transportation bag for transport of food products.
Both methods of the invention for manufacturing a composition for absorbing moist share the property that the simultaneous use of glycerin or glycerol 2 and superabsorbent polymer 3 surprisingly and synergistically increases the effectiveness of the composition. The inventors believe that this is due to the combination of the water attractive property of glycerin or glycerol and the water retaining property of the superabsorbent polymer, the effect of which is particularly enhanced when the glycerin or glycerol and the superabsorbent polymer are in contact with each other. The disclosed embodiments of the method for manufacturing of the composition according to the invention thus result in separately manipula-ble packets containing the composition of the invention, which can be applied singularly or plural in a transportation bag for the food products, in order to absorb excessive moist in the bag so as to preserve the quality of the food products as much as possible, particularly during an extended stay of the food products in the transportation bag.
To exemplify the results of the invention reference is made to figures 3, 4 and 5, which respectively show the de velopment of the moisture content in a heated bag filled with one kilogram of fries during a timeframe of approximately 25 minutes, wherein varying measures are taken to control the moisture content in the bag. All figures have time displayed on the X axis as an independent variable. Further all figures show on the left Y axis the temperature in degrees Celsius, and on the right the relative moisture content in the bag as a percentage. The bags are heated by placing them in commercially available transportation equipment with the lid closed, wherein a heating plate is provided that is heated through induction .
Figure 3 shows the situation that corresponds to the prior art wherein no specific measures are taken to control the moisture content in the bag. It is shown that at all times the moisture content in the bag remains above 70%, which deteriorates in the end the crispiness of the fries. It is known that for best results regarding the crispiness of the fries, the moisture content in the bag must drop down to below 60%.
Figure 4 shows the situation that corresponds to the invention wherein a composition comprising glycerin or glycerol is added to the bag. The figure shows not only a gradual decline of the moisture content in the bag to a value near to 40%, but also that the reduced moisture content results in higher temperatures in the bag in comparison with the situation of figure 3. Thus not only the crispiness of the fries benefits from the invention, but an additional advantage is that the fries can be better maintained above a desired temperature .
In figure 5 the situation is depicted when the fries in the bag are provided with a composition comprising both glycerin or glycerol and a superabsorbent polymer. In comparison with figure 4 it is clear that in this situation the reduction of the moisture content in the bag is accelerated, wherein the eventual value of the moisture content is approximately the same as in figure 4.
Although the invention has been discussed in the foregoing with reference to two exemplary embodiments of the apparatus for manufacturing the composition of the invention, the invention is not restricted to these particular embodi- merits which can be varied in many ways without departing from the invention. The discussed exemplary embodiments shall therefore not be used to construe the appended claims strictly in accordance therewith. On the contrary the embodiments are merely intended to explain the wording of the appended claims without intent to limit the claims to these exemplary embodiments. The scope of protection of the invention shall therefore be construed in accordance with the appended claims only, wherein a possible ambiguity in the wording of the claims shall be resolved using these exemplary embodiments.

Claims (22)

1. Samenstelling voor het absorberen van vocht uit een afgesloten omgeving voor voedselproducten met een verhoogde temperatuur in vergelijking met kamertemperatuur, met het kenmerk, dat de samenstelling glycerine of glycerol omvat.A composition for absorbing moisture from a sealed environment for food products with an elevated temperature compared to room temperature, characterized in that the composition comprises glycerin or glycerol. 2. Samenstelling volgens conclusie 1, met het kenmerk, dat de samenstelling een superabsorberend polymeer omvat .A composition according to claim 1, characterized in that the composition comprises a superabsorbent polymer. 3. Samenstelling volgens conclusie 2, met het kenmerk, dat het superabsorberende polymeer een water bindend zout is.Composition according to claim 2, characterized in that the superabsorbent polymer is a water-binding salt. 4. Samenstelling volgens conclusie 2 of 3, met het kenmerk, dat het superabsorberend polymeer één geselecteerd is uit de groep omvattende polyacrylzuur natriumzout; polyacrylamide copolymeer, ethyleen maleïne anhydridecopolymeer, vernet carboxymethylcellulose, polyvinyl alcoholcopolymeren, vernet polyethyleenoxide, en zetmeel geënte copolymeer of po-lyacrylonitril.Composition according to claim 2 or 3, characterized in that the superabsorbent polymer is one selected from the group comprising polyacrylic acid sodium salt; polyacrylamide copolymer, ethylene maleic anhydride copolymer, cross-linked carboxymethyl cellulose, polyvinyl alcohol copolymers, cross-linked polyethylene oxide, and starch grafted copolymer or polyacrylonitrile. 5. Samenstelling volgens één der voorgaande conclusies 1-4, met het kenmerk, dat de samenstelling glycerine of glycerol omvat als ook een superabsorberend polymeer, waarbij het superabsorberend polymeer in contact staat met de glycerine of glycerol.A composition according to any one of the preceding claims 1-4, characterized in that the composition comprises glycerin or glycerol as well as a super-absorbent polymer, wherein the super-absorbent polymer is in contact with the glycerin or glycerol. 6. Samenstelling volgens één der voorgaande conclusies 2-5, met het kenmerk, dat het superabsorberend polymeer gevormd is als korrels of pastilles.A composition according to any one of the preceding claims 2-5, characterized in that the superabsorbent polymer is shaped as granules or pastilles. 7. Samenstelling volgens één der voorgaande conclusies 1-6, met het kenmerk, dat de glycerine of glycerol en/of het superabsorberend polymeer verschaft is op een dra-germateriaal.Composition according to any one of the preceding claims 1-6, characterized in that the glycerin or glycerol and / or the superabsorbent polymer is provided on a carrier material. 8. Samenstelling volgens conclusie 7, met het kenmerk, dat het dragermateriaal een viskeuze stof en/of een water en lucht-permeabel materiaal is.Composition according to claim 7, characterized in that the carrier material is a viscous substance and / or a water and air-permeable material. 9. Samenstelling volgens conclusie 7 of 8, met het kenmerk, dat het dragermateriaal gevormd is als een zak of pakket.Composition according to claim 7 or 8, characterized in that the carrier material is shaped as a bag or package. 10. Transportmiddel voor voedselproducten, zoals ge-maksvoedsel zoals frieten of hamburgers, omvattende een ver- warmbare verpakking voor de voedselproducten, met het kenmerk, dat deze voorzien is van een samenstelling volgens één der voorgaande conclusies 1-9.10. Transport means for food products, such as dairy food such as French fries or hamburgers, comprising a heatable package for the food products, characterized in that it is provided with a composition according to any one of the preceding claims 1-9. 11. Werkwijze voor het transporteren van voedselproducten in een verpakking, gekenmerkt door het aan de verpakking verschaffen van een samenstelling voor het absorberen van vocht binnen de verpakking, waarbij genoemde samenstelling glycerine of glycerol omvat.A method for transporting food products in a package, characterized by providing the package with a composition for absorbing moisture within the package, said composition comprising glycerin or glycerol. 12. Werkwijze volgens conclusie 11, gekenmerkt door erin te voorzien dat de samenstelling een superabsorberend polymeer omvat.The method of claim 11, characterized in that the composition comprises a superabsorbent polymer. 13. Werkwijze volgens conclusie 12, gekenmerkt door erin te voorzien dat het superabsorberend polymeer een water bindend zout is.A method according to claim 12, characterized in that the superabsorbent polymer is a water-binding salt. 14. Werkwijze volgens conclusie 11 of 12, gekenmerkt door erin te voorzien dat het superabsorberend polymeer één geselecteerd is uit de groep omvattende polyacrylzuur natrium-zout; polyacrylamide copolymeer, ethyleen maleine anhydrideco-polymeer, vernet carboxymethylcellulose, polyvinyl alcoholco-polymeren, vernet polyethyleenoxide, en zetmeel geënte copolymeer van polyacrylonitril.A method according to claim 11 or 12, characterized in that the superabsorbent polymer is one selected from the group comprising polyacrylic acid sodium salt; polyacrylamide copolymer, ethylene maleic anhydride copolymer, cross-linked carboxymethyl cellulose, polyvinyl alcohol copolymers, cross-linked polyethylene oxide, and starch grafted copolymer of polyacrylonitrile. 15. Werkwijze volgens één der voorgaande conclusies 11 - 14, gekenmerkt door erin te voorzien dat de samenstelling glycerine of glycerol omvat als ook een superabsorberend polymeer, waarbij het superabsorberend polymeer in contact staat met de glycerine of glycerol.A method according to any one of the preceding claims 11-14, characterized in that the composition comprises glycerin or glycerol as well as a superabsorbent polymer, wherein the superabsorbent polymer is in contact with the glycerin or glycerol. 16. Werkwijze volgens één der voorgaande conclusies 12 - 15, gekenmerkt door erin te voorzien dat het superabsorberend polymeer de vorm bezit van korrels of pastilles.A method according to any one of the preceding claims 12-15, characterized in that the superabsorbent polymer is in the form of granules or pastilles. 17. Werkwijze volgens één der voorgaande conclusies 11 - 16, gekenmerkt door erin te voorzien dat de glycerine of glycerol en/of het superabsorberend polymeer is aangebracht op een dragermateriaal.A method according to any one of the preceding claims 11 to 16, characterized in that the glycerin or glycerol and / or the superabsorbent polymer is applied to a carrier material. 18. Werkwijze volgens conclusie 17 gekenmerkt door erin te voorzien dat het dragermateriaal een viskeuze stof en/of een water- en lucht-permeabel materiaal is.A method according to claim 17, characterized in that the carrier material is a viscous substance and / or a water and air permeable material. 19. Werkwijze volgens conclusie 17 of 18, gekenmerkt door erin te voorzien dat het dragermateriaal gevormd is als een zak of pakket.A method according to claim 17 or 18, characterized in that the carrier material is shaped as a bag or package. 20. Werkwijze voor het vervaardigen van een samenstelling voor het absorberen van vocht uit een afgesloten omgeving met een verhoogde temperatuur in vergelijking met kamertemperatuur, met het kenmerk, dat in een voorbewerking of nabewerking van een viskeuze stof, glycerine of glycerol aangebracht wordt in respectievelijk op genoemde viskeuze stof.A method of manufacturing a moisture-absorbing composition from a sealed environment with an elevated temperature as compared to room temperature, characterized in that, in a pre-treatment or post-processing of a viscous substance, glycerin or glycerol is applied to or on viscous substance. 21. Werkwijze volgens conclusie 20, waarbij de glycerine of glycerol in een voorbewerking geïmpregneerd is in de viskeuze stof, met het kenmerk, dat een superabsorberend polymeer op de viskeuze stof is aangebracht, waarna genoemde viskeuze stof aangebracht wordt tussen twee deklagen, waarvan ten minste één water- en lucht-permeabel is.A method according to claim 20, wherein the glycerin or glycerol is pre-treated in the viscous substance, characterized in that a superabsorbent polymer is applied to the viscous substance, after which said viscous substance is applied between two cover layers, of which at least one is water and air permeable. 22. Werkwijze volgens conclusie 20, waarbij glycerine of glycerol in een nabewerking is aangebracht op de viskeuze stof, met het kenmerk, dat een superabsorberend polymeer geïmpregneerd is in de viskeuze stof, waarna de genoemde viskeuze stof is aangebracht tussen deklagen, waarvan ten minste één water- en lucht-permeabel is, en dat de glycerine of glycerol is aangebracht op de water- en lucht-permeabele deklaag.A method according to claim 20, wherein glycerin or glycerol is applied in a post-processing to the viscous substance, characterized in that a superabsorbent polymer is impregnated into the viscous substance, after which said viscous substance is applied between coatings, at least one of which water and air permeable, and that the glycerin or glycerol is applied to the water and air permeable cover layer.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645698A (en) * 1984-05-09 1987-02-24 Showa Denko Kabushiki Kaisha Dehydrating and water-retaining sheet
US6051317A (en) * 1995-02-20 2000-04-18 Stockhausen Gmbh & Co. Kg Sheet-like superabsorbent structures
NL1036895C2 (en) * 2009-04-23 2010-10-26 Dupon Nederland B V HOLDER FOR A VAPORIZED FOOD PRODUCT.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645698A (en) * 1984-05-09 1987-02-24 Showa Denko Kabushiki Kaisha Dehydrating and water-retaining sheet
US6051317A (en) * 1995-02-20 2000-04-18 Stockhausen Gmbh & Co. Kg Sheet-like superabsorbent structures
NL1036895C2 (en) * 2009-04-23 2010-10-26 Dupon Nederland B V HOLDER FOR A VAPORIZED FOOD PRODUCT.

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