CN108504198A - A kind of coating and its preparation method and application for liquid food/drug packing material - Google Patents
A kind of coating and its preparation method and application for liquid food/drug packing material Download PDFInfo
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- CN108504198A CN108504198A CN201810331754.3A CN201810331754A CN108504198A CN 108504198 A CN108504198 A CN 108504198A CN 201810331754 A CN201810331754 A CN 201810331754A CN 108504198 A CN108504198 A CN 108504198A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions 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 an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/10—Homopolymers or copolymers of propene
- C09D123/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention provides a kind of coating and its preparation method and application for liquid food/drug packing material, the coating for liquid food/drug packing material includes low-surface-energy hydrophobic polymer micron particles and low-surface-energy hydrophobic nanoparticles.The coating uses main component of the low surface energy polymeric micro-nano granules as coating, substitute widely used nanometer or micro silica particle in the prior art, storage stability is good, a kind of coating with micro-nano structure can be formed after drying, this coating has good anti-attachment performance and wearability to liquid food/drug, there is preferable adhesion strength to original packing material, and the heat sealability and leakproofness of original packing material are not influenced, in addition, the raw material that the coating uses is satisfied by the requirement of food/pharmaceutical health.
Description
Technical field
The invention belongs to technical field of coatings, are related to a kind of coating and its system for liquid food/drug packing material
Preparation Method and purposes.
Background technology
Some sticky liquid foods (such as Yoghourt, honey, jam, mixed congee) or drug (such as cough syrup) are often viscous
It is attached to the inner surface of cover closing material, so as to bring following trouble：1) when container breaks a seal, it is adhered to the liquid of capping inner surface
Body food/pharmaceutical (content) is easy to splash or drip；2) liquid food/drug adhered to cannot generally be eaten completely, be made
At waste；3) it when recycling, needs to carry out additional cleaning treatment to the packaging material of adhering liquid food/pharmaceutical；4) it gives
One unclean appearance of consumer.
Cover closing material belongs to food/pharmaceutical packaging material, is a kind of MULTILAYER COMPOSITE membrane structure, includes mainly base, barrier
Trilamellar membrane, is combined with each other by binder using hot-pressing technique by layer and hot sealing layer.In general, especially to cup type Yoghourt
For cover closing material, hot sealing layer generally use hot melt adhesive material, such as ethylene-vinyl acetate copolymer modified polyethylene film, second
The blend of alkene-acetate ethylene copolymer and ethylene-vinyl acetate copolymer and other fillers and auxiliary agent.These material moltens
Temperature is relatively low, is melted when reaching heat-sealing temperature, has mobility, can be (common by cover closing material and the container for holding food
It is polystyrene, polyethylene, polypropylene) upper limb is bonded together, form the seal of a storing liquid food.
As it was noted above, cover closing material inner surface is easily adhered liquid food/drug.Currently, to solve the problems, such as this, generally
Method is that the hydrophobic or super-hydrophobic coat of a layered low-surface energy is coated in cover closing material inner surface, makes liquid food/drug not
Easily adherency or the rolling disengaging under certain angle of inclination, reaches non-cohesive and self-cleaning effect.CN102317067A is disclosed
A kind of preparation method of super-hydrophobic coat, which employs hydrophobicity gaseous oxidation nano silicon particles (3-100 nanometers of average grain diameters)
For coating key component；Hydrophobicity gaseous oxidation nano silicon particles can form three-dimensional network shape porous medium, have fine
Pick resistance.But CN103569491A is pointed out, although above-mentioned technical proposal prevents content adhesion effect under normal circumstances
It is excellent, but the thermal stability (heat resistance) of anti-adhesion layer is poor, in the case where being subjected to bad thermal history, having prevents attachment from imitating
Fruit is easy damaged difficult point, such as when drying after the nanoparticulate dispersion coating in anti-adhesion layer preparation section, if
Heating temperature is high or drying time is elongated, then prevents content adhesion effect significantly impaired.Possible cause is in heating and drying
In the process, nano particle can be deposited in the hot sealing layer of molten condition or liquid hot melt adhesive is by capillary force between nano particle
Effect and enter particulate interspaces and surface, to reduce the degree of roughness of coating surface, its anti-sticky effect is made to decline.
Therefore, hydrophobic precipitated method silicon oxide particle (wet silicon dioxide), such grain diameter are used in CN103569491A
(0.5-7 microns) are bigger than gaseous oxidation silicon, are not easy to be deposited in hot sealing layer in heat seal process, and capillary phenomenon is weaker, no
Exposing area can be substantially reduced, so as to effectively prevent the anti-adhesion performance degradation phenomenon as caused by heat drying.In addition, should
Patent is proposed with the higher heat-sealing layer material of softening point, prevents its excessively high mobility, slow down above-mentioned particle sedimentation and
Capillary effect.By above-mentioned two measure, it is finally reached the well stable anti-adhesiving effect of content.However CN104619603A
Think in adhesive layer using grain size larger (micron order) although silicon oxide particle can prevent particle and capillary effect, it is big
Particles are still easy to fall off from anti-adhesion layer surface under the conditions of frictional vibration, keep anti-adhesion effect unstable.It carries thus
Thus going out to add a convex-concave layer between hot sealing layer and base material improves to assign hot sealing layer scraggly surface texture
The tendency that hot sealing layer outer surface dewatering nano oxide particle is easy to fall off.Here convex-concave layer by thermosetting resin and grain size in 1-
100 microns of particle is constituted.Similar, patent CN104903099A also uses convex-concave layer, and uses crosslinking with radiation technology pair
Convex-concave layer does sizing treatment.Its hydrophobic layer is the compound of hydrophobic silica silicon particle and olefinic copolymer resin.
See from presently disclosed patent, the anti-adhesion technology of existing food/pharmaceutical packaging material is mainly from the low table of construction
Face energy coating (hydrophobic or super-hydrophobic coat) and two aspect of control hot sealing layer structure, which are started with, solves.But that invents at present is hydrophobic
Or super-hydrophobic coat has been all made of silica dioxide granule.But the coating containing a large amount of silica dioxide granules is reaching packing timber
It is relatively difficult in terms of the balance of the every key performance (anti-adhesion property, heat sealability, leakproofness, wearability) of material, coated heat is gone through
History has an impact significantly the micro-structure of coating material, is difficult to obtain effective control, this causes the unstable of anti-adhesion layer performance；And
Medium (such as ethyl alcohol, ethanol/water, ethyl acetate, butyl acetate) used by the density ratio coating of silica is much larger, applies
Silica dioxide granule is easy to happen sedimentation after the long-term placement of material, and Storage period is shorter.For this reason, it may be necessary to the prior art is improved and
A kind of anti-adhesion coating of more excellent food/pharmaceutical packaging of comprehensive performance is researched and developed in optimization.
Invention content
It is a kind of for liquid food/Key works Drug packing in view of the deficiencies of the prior art, the present invention intends to provide
Coating of material and its preparation method and application, the coating storage stability is good, can be formed after dry a kind of with micro-nano
The coating of structure, this coating to liquid food/drug have good anti-attachment performance and wearability, to original packing material have compared with
Good adhesion strength, and the heat sealability and leakproofness of original packing material are not influenced.
For this purpose, the present invention uses following technical scheme：
It is described to be used for one of the objects of the present invention is to provide a kind of coating for liquid food/drug packing material
The coating of liquid food/drug packing material includes low-surface-energy hydrophobic polymer micron particles and low-surface-energy hydrophobic polymer
Nano particle.
Without using nanometer or micro silica particle in the coating.
The low-surface-energy hydrophobic polymer micron particles refer to having hydrophobic low surface energy polymeric micron particles,
Its surface energy is less than 40m/Nm, and contact angle is more than 90 °.
The low-surface-energy hydrophobic polymer nano particle refers to having hydrophobic low surface energy polymeric nano particle,
Its surface energy is less than 40m/Nm, and contact angle is more than 90 °.
Those skilled in the art are, it should be understood that the low-surface-energy hydrophobic polymer micron particles and low-surface-energy hydrophobic polymer
Nano particle should meet the requirement of food/pharmaceutical safety.
Those skilled in the art, it should be understood that the coating should also contain solvent, low-surface-energy hydrophobic polymer micron particles and
Low-surface-energy hydrophobic nanoparticles are scattered in the solvent, form coating.
The solvent at a certain temperature should be able to be slightly hydrophobic poly- by the low-surface-energy as a preferred technical solution,
Close object micron particles and the swelling softening of low-surface-energy hydrophobic nanoparticles.Material after swelling softening can have original packing material
Preferable adhesion strength, and the coating formed has excellent abrasive resistance to liquid food/drug.
Preferably, the solvent is selected from the mixed liquor of second alcohol and water, and second alcohol and water weight ratio is (30-87):(10-50),
Such as 38:22、40:28、46:32、55:42 or 75:48 etc..
The low-surface-energy hydrophobic polymer micron particles and the mass ratio of low-surface-energy hydrophobic nanoparticles are (1-5):
(1-10), such as 2:4、4:6、5:7、3:8 or 2:9 etc..
The low-surface-energy hydrophobic polymer micron particles are selected from polystyrene micron particles, polyethylene micron particles or poly-
In propylene micron particles any one or at least two combination, typical but non-limiting combination is such as polystyrene micron
Grain and polyethylene micron particles, polystyrene micron particles and polypropylene micron particles, polyethylene micron particles and polypropylene are micro-
Rice grain.
Preferably, the grain size of the low-surface-energy hydrophobic polymer micron particles be 2-50 micron, as 3 microns, 5 microns, 7
Micron, 8 microns, 10 microns, 12 microns, 15 microns, 20 microns, 23 microns, 28 microns, 35 microns, 40 microns, 46 microns or 48
Micron etc., preferably 2-15 microns.
Preferably, the low-surface-energy hydrophobic polymer nano particle is selected from polystyrene nanoparticles, polyethylene nanometer
In particle or polypropylene nano particle any one or at least two combination, typical but non-limiting combination is such as polyphenyl second
Alkene nano particle and polyethylene nano particle, polystyrene nanoparticles and polypropylene nano particle, polyethylene nano particle with
Polypropylene nano particle.
Preferably, the grain size of the low-surface-energy hydrophobic polymer nano particle is at 5-200 nanometers, as 8 nanometers, 10 are received
Rice, 15 nanometers, 20 nanometers, 28 nanometers, 39 nanometers, 50 nanometers, 70 nanometers, 90 nanometers, 100 nanometers, 120 nanometers, 130 nanometers,
150 nanometers or 170 nanometers etc., preferably 10-100 nanometers.
The coating for being used for liquid food/drug packing material as a preferred technical solution, in parts by weight, packet
Include following component：
Low-surface-energy hydrophobic polymer micron particles and low-surface-energy hydrophobic nanoparticles cooperate in the coating, make
The coating storage stability is good, can form a kind of coating with micro-nano structure after dry, this coating to liquid food/
Drug has good anti-attachment performance, and does not influence the heat sealability and leakproofness of original packing material.
The parts by weight of the ethyl alcohol are 30-87 parts, such as 32 parts, 35 parts, 38 parts, 42 parts, 48 parts, 56 parts, 67 parts, 78 parts
Or 85 parts etc., the parts by weight of water are 10-50 parts, such as 12 parts, 15 parts, 18 parts, 23 parts, 28 parts, 33 parts, 36 parts, 45 parts or 48
Part etc.；The parts by weight of low-surface-energy hydrophobic polymer micron particles are 1-5 parts, such as 2 parts, 3 parts, 4 parts or 4.5 parts；Low table
Face can the parts by weight of hydrophobic polymer nano particle be 1-10 parts, such as 2 parts, 3 parts, 5 parts, 7 parts, 8 parts or 9 parts；Dispersant
Parts by weight be 0.1-2 parts, such as 0.3 part, 0.8 part, 1.0 parts, 1.5 parts or 1.8 parts；The parts by weight of thickener are 0.3-
3 parts, such as 0.5 part, 0.8 part, 1.5 parts, 2.0 parts or 2.5 parts.
Do not specially required on the dispersant structure, should be dissolved in solvent, and with low-surface-energy hydrophobic polymer micro-nano
Rice grain has good interaction, it is preferable that the dispersant is in stearic acid, stearates, oleic acid or palmitic acid
Any one or at least two combination, typical but non-limiting combination such as stearic acid and stearates, oleic acid with it is soft
Resin acid, stearates, oleic acid and palmitic acid, stearic acid, stearates and oleic acid.
Preferably, it is not particularly limited in the thickener structure, current solvent should be dissolved in, and to a certain extent
Increase viscosity of mixed liquid, low-surface-energy hydrophobic polymer micro-nano granules is made to be less likely to occur to float or settle.It is preferably selected from carboxylic
In methylcellulose, ethyl cellulose or Arabic gum any one or at least two combination, it is typical but non-limiting
Combination such as carboxymethyl cellulose and ethyl cellulose, carboxymethyl cellulose and Arabic gum, carboxymethyl cellulose, ethyl cellulose
With Arabic gum.
Dispersant and thickener can not be contained in the coating, but in order to promote low-surface-energy hydrophobic polymer micron
Grain and the dispersion of low-surface-energy hydrophobic nanoparticles and the coating performance of coating contain dispersant and thickener in preferred coatings.
The second object of the present invention is to provide a kind of coating as described above being used for liquid food/drug packing material
Preparation method, the preparation method includes：
(1) low-surface-energy hydrophobic nanoparticles are scattered in solvent, obtain the first mixed liquor；
(2) the hydrophobic micron particles of low-surface-energy are scattered in the first mixed liquor, are obtained described for liquid food/drug
The coating of packaging material.
Low-surface-energy hydrophobic nanoparticles are scattered in solvent by step (1) using high-speed dispersion equipment.
Preferably, the high-speed dispersion equipment is in vacuum high speed dispersor, high pressure homogenizer or nano bead mill
Any one or at least two combination, typical but non-limiting combination receives such as vacuum high speed dispersor and high pressure homogenizer
Measle grinding machine and vacuum high speed dispersor, vacuum high speed dispersor, high pressure homogenizer and nano bead mill.
Preferably, the rotating speed of the high-speed dispersion equipment be 3000-6000r/min, as 3200r/min, 3500r/min,
3800r/min, 4300r/min, 4800r/min, 5200r/min or 5800r/min etc., mixing time 5-60min, such as
6min, 8min, 10min, 12min, 15min, 18min, 30min, 35min, 40min, 50min or 55min etc.；Alternatively, described
The extrusion pressure of high-speed dispersion equipment is not less than 60MPa, such as 65MPa, 68MPa, 70MPa, 75MPa, 82MPa, 86MPa or
90MPa etc..
Preferably, it is additionally added dispersant in step (1) described solvent.
Preferably, the hydrophobic micron particles of low-surface-energy are scattered in the first mixed liquor by step (2) under agitation.
Preferably, thickener is additionally added after the hydrophobic micron particles of low-surface-energy being scattered in the first mixed liquor.
The preparation method of the coating for liquid food/drug packing material includes as a preferred technical solution,
Following steps：
(1) by the low-surface-energy hydrophobic nanoparticles of formula ratio using high-speed dispersion equipment be scattered in formula ratio ethyl alcohol and
In the mixed liquor of water, and the dispersant of formula ratio is added, obtains the first mixed liquor；
(2) the hydrophobic micron particles of the low-surface-energy of formula ratio are scattered in the first mixed liquor, formula ratio is added later
Thickener obtains the coating for being used for liquid food/drug packing material.
The third object of the present invention is to provide a kind of food/pharmaceutical packaging material, the food/pharmaceutical packaging material table
Face is provided with coating, and the coating is obtained using the coating preparation as described above for liquid food/drug packing material.
The fourth object of the present invention is to provide a kind of preparation method of food/pharmaceutical packaging material, the preparation method
Use the coating preparation food/pharmaceutical packaging material for being used for liquid food/drug packing material as described above.
The preparation method of the food/pharmaceutical packaging material includes as a preferred technical solution,：It will be used for liquid food
The coating of product/drug packing material is coated on pending food/pharmaceutical package material surface, and force drying obtains food/pharmaceutical
Packaging material.
Preferably, the mode of the coating in roller coating, spraying or spin coating any one or at least two combination,
Typical but non-limiting combination such as roller coating and spraying, spraying and spin coating, roller coating, spraying and spin coating.
Preferably, the temperature of the force drying can be hydrophobic by the low-surface-energy hydrophobic nanoparticles and low-surface-energy
Micron particles slightly soften.The temperature of the force drying and the cooperation of solvent make low-surface-energy hydrophobic nanoparticles and low table
The face hydrophobic micron particles of energy are adhered to pending food/pharmaceutical package material surface, not easily to fall off.The temperature of the force drying
It should be according to the type of the low-surface-energy hydrophobic polymer micron particles and low-surface-energy hydrophobic polymer nano particle of actual use
It is selected.
Preferably, the temperature of the force drying be 80-150 DEG C, such as 85 DEG C, 92 DEG C, 98 DEG C, 105 DEG C, 112 DEG C, 118
DEG C, 123 DEG C, 128 DEG C, 135 DEG C, 142 DEG C or 148 DEG C etc..
Preferably, the time of the force drying be 30-600s, as 35s, 40s, 48s, 56s, 80s, 100s, 150s,
200s, 260s, 320s, 450s, 560s or 580s etc..
The fifth object of the present invention is that provide a kind of improve stores surely for the coating of liquid food/drug packing material
Qualitative method, the method is using the coating for being used for liquid food/drug packing material as described above.And use institute as above
It is prepared by the preparation method for the food/pharmaceutical packaging material stated.
The coating that the method obtains does not find apparent particle precipitation or is precipitated after storing 3 months.
The sixth object of the present invention is to provide a kind of liquid food with ultra-hydrophobicity/drug packing material coating
Preparation method, the preparation method is using the coating for being used for liquid food/drug packing material as described above.And using such as
It is prepared by the preparation method of the upper food/pharmaceutical packaging material.The coating that the method obtains is a kind of with micro-nano structure
Coating, the coating has excellent ultra-hydrophobicity to liquid food/drug, is more than 150 ° with the contact angle of water droplet,
Roll angle is less than 1 °.
The seventh object of the present invention is to provide a kind of side for improving liquid food/drug packing material anti-attachment performance
Method, the method is using the coating for being used for liquid food/drug packing material as described above.And using food as described above
It is prepared by the preparation method of product/drug packing material.The coating that the method obtains has good anti-attachment performance, and liquid is eaten
Product or drug drop in coating surface, can form bead and roll and eventually fall out in coating surface.
The eighth object of the present invention is to provide a kind of liquid food/drug packing material face coat wearability that improves
Method, the method is using the coating for being used for liquid food/drug packing material as described above.And using food as described above
It is prepared by the preparation method of product/drug packing material.The coating that the method obtains has good wearability, to original packing material
There is preferable adhesion strength, coating surface is gently such as wiped repeatedly using black cotton or bend packaging material repeatedly multiple, does not see
Coating cracking, unsticking or picking phenomenon, white powder is observed not transfer to substantially above black cotton.Moreover, through wiping
The coating crossed still has anti-adhesion ability；In addition, the coating does not influence the heat sealability and leakproofness of original packing material, heat-sealing
Its heat seal strength is tested in experiment can reach 12N/15mm.
The nineth object of the present invention is to provide a kind of raising liquid food/drug packing material face coat to original packing
The method of material adhesion strength, the method is using the coating for being used for liquid food/drug packing material as described above.And it adopts
It is prepared with the preparation method of food/pharmaceutical packaging material as described above.The coating that the method obtains has original packing material
It is multiple or bend packaging material repeatedly more such as gently to wipe coating surface using black cotton for preferable adhesion strength, and wear-resisting
It is secondary, do not observe that coating cracking, unsticking or picking phenomenon, white powder do not transfer to substantially above black cotton.Moreover,
Coating through wiping across still has anti-adhesion ability；In addition, the coating does not influence heat sealability and the sealing of original packing material
Property, 12N/15mm can be reached by testing its heat seal strength in heat-sealing experiment.
Numberical range of the present invention includes not only enumerated point value, further includes the above-mentioned numerical value not included
Arbitrary point value between range, as space is limited and for concise consideration, range includes described in the present invention no longer exclusive list
Specific point value.
Compared with prior art, beneficial effects of the present invention are：
It is good provided by the present invention for the coating storage stability of liquid food/drug packing material, under normal conditions
Storage does not find apparent particle precipitation or is precipitated after 3 months；A kind of coating with micro-nano structure, institute can be formed after drying
State coating has excellent ultra-hydrophobicity to liquid food/drug, is more than 150 ° with the contact angle of water droplet, roll angle is less than
1°；The coating has good anti-attachment performance, and liquid food or drug are dropped in coating surface, can form bead in coating
It surface scrolls and eventually falls out；The coating has good wearability, has preferable adhesion strength to original packing material, such as adopts
Coating surface is gently wiped with black cotton repeatedly or packaging material bend repeatedly multiple, is not observed coating cracking, unsticking or is fallen
Powder phenomenon, white powder do not transfer to substantially above black cotton.Moreover, the coating through wiping across is still with anti-adhesion
Ability；In addition, the coating does not influence the heat sealability and leakproofness of original packing material, its heat seal strength energy is tested in heat-sealing experiment
Enough reach 12N/15mm.
Wanting for food/pharmaceutical safety is disclosure satisfy that provided by the present invention for the coating of liquid food/drug packing material
It asks.
It is simple provided by the present invention for the preparation method of the coating of liquid food/drug packing material.
It a variety of coating methods can be used is coated on food provided by the present invention for the coating of liquid food/drug packing material
On product/pharmaceutical packing material.
Description of the drawings
Fig. 1 is the structural schematic diagram for liquid food/drug packing material that embodiment 1 provides.
Wherein, 1- bases；2- barrier layers；3- hot sealing layers；4- micro-nano coatings.
Fig. 2 is that the Yoghourt that embodiment 1 provides and honey form the figure of bead on liquid food/drug packing material surface
Piece.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
Embodiment 1
A kind of coating for liquid food/drug packing material, in parts by weight, including following component：
Low-surface-energy hydrophobic polymer micron particles are polystyrene micron powder, and grain size is 3.4 microns；Low-surface-energy is dredged
Aqueous polymer nano particle is pipe/polyhenylethylene nano powder, and grain size is 21 nanometers；Dispersant is stearic acid；Thickener is carboxymethyl
Cellulose.
The preparation method of the coating, includes the following steps：
(1) 3.0 grams of pipe/polyhenylethylene nano powder are added in water-ethanol mixed solvent, the weight ratio of water and ethyl alcohol is
20:70；0.1 gram of stearic acid is added in mixture to use as dispersant；Using vacuum high speed dispersor high-speed stirring at room temperature
Mixture is mixed, agitating paddle rate is not less than 5000 revs/min, and mixing time was controlled at 1-2 hours, obtained nano pipe/polyhenylethylene
Dispersion liquid, nano pipe/polyhenylethylene content are about 3.5%；
(2) 2.0 grams of polystyrene micron powder are added in above-mentioned dispersion liquid, suitably being stirred using dispersion machine makes polyphenyl
Ethylene micron powder is uniformly dispersed wherein；0.3 gram of carboxymethyl cellulose is added into the dispersion liquid, to increase the viscous of dispersion liquid
Degree and stability obtain the micro-nano coating of polystyrene after being sufficiently stirred.
Food/pharmaceutical packaging material is prepared using above-mentioned coating, preparation method includes：
Above-mentioned coating is scratched to pending food/pharmaceutical package material surface using bar knife coating procedure, is formed by
Wet film is 60 seconds dry in 100 DEG C of baking oven, ultimately forms the anti-adhesion coating with micro nano structure, low-surface-energy.
Prepared food/pharmaceutical packaging material is as shown in Figure 1.The food/pharmaceutical packaging material is from bottom to up successively
Including base 1；Barrier layer 2；Hot sealing layer 3；Micro-nano coating 4.
The coating of prepared food/pharmaceutical packaging material is tested for the property：
The coating does not find apparent particle precipitation or is precipitated after storing at normal temperatures and pressures 3 months, show its storage
Stability is preferable.
5 μ L water are added dropwise to measure coating to coating surface using contact angle measurement (DSA100, KRUSS, Germany)
Water contact angle.Experimental result is：The contact angle of itself and water droplet is more than 150 °, and roll angle is less than 1 °.Show above-mentioned anti-adhesion painting
Layer has excellent ultra-hydrophobicity.
Yoghourt (5% fat content), honey or liquid drug are dropped in into coating surface, bead can be formed (such as Fig. 2 institutes
Show) it rolls and eventually falls out in coating surface.Show that above-mentioned coating has good anti-adhesion ability to thick liquid.
Coating surface is gently wiped repeatedly using black cotton or packaging material bend repeatedly multiple, does not observe that coating is opened
It splits, unsticking or picking phenomenon, white powder do not transfer to substantially above black cotton.Moreover, the coating through wiping across is still
So there is the anti-adhesion ability to above-mentioned Yoghourt or honey.Show that the adhesive force of above-mentioned anti-adhesion coating and packaging material is preferable,
And it is wear-resisting.
By the packaging material of the anti-adhesion coating of above-mentioned coating and polystyrene cup carry out heat-sealing experiment (at 220 DEG C, 4kg's
Sealed 1 second under pressure), the heat seal strength measured after heat-sealing is about 12N/15mm, that is, is bonded stronger.
Embodiment 2
A kind of coating for liquid food/drug packing material, in parts by weight, including following component：
Low-surface-energy hydrophobic polymer micron particles are polyethylene micron powder, and grain size is 2.0 microns；Low-surface-energy is hydrophobic
Polymer nano granules are polyethylene nanometer powder, and grain size is 200 nanometers；Dispersant is oleic acid；Thickener is ethyl cellulose.
The preparation method of the coating, includes the following steps：
(1) the polyethylene nanometer powder of formula ratio is added in the water-ethanol mixed solvent of formula ratio, and to mixture
The middle oleic acid that formula ratio is added is used as dispersant；Using vacuum high speed dispersor high-speed stirred mixture at room temperature, stir
It is 3000 revs/min to mix paddle rate, and mixing time was controlled at 1-2 hours, obtained the dispersion liquid of nano-polyethylene；
(2) the polyethylene micron powder of formula ratio is added in above-mentioned dispersion liquid, suitably being stirred using dispersion machine makes to gather
Ethylene micron powder is uniformly dispersed wherein；The ethyl cellulose that formula ratio is added into the dispersion liquid, to increase dispersion liquid
Viscosity and stability obtain the micro-nano coating of polyethylene after being sufficiently stirred.
Food/pharmaceutical packaging material is prepared using above-mentioned coating, preparation method includes：
Above-mentioned coating is applied to by pending food/pharmaceutical package material surface using rolling method, wet film is formed by and exists
It is 80 seconds dry in 130 DEG C of baking oven, ultimately form the anti-adhesion coating with micro nano structure, low-surface-energy.
The coating does not find apparent particle precipitation or is precipitated after storing at normal temperatures and pressures 3 months, show its storage
Stability is preferable.
5 μ L water are added dropwise to measure coating to coating surface using contact angle measurement (DSA100, KRUSS, Germany)
Water contact angle.Experimental result is：The contact angle of itself and water droplet is more than 150 °, and roll angle is less than 1 °.Show above-mentioned anti-adhesion painting
Layer has excellent ultra-hydrophobicity.
Yoghourt (5% fat content), honey or liquid drug are dropped in into coating surface, bead can be formed in coating surface
It rolls and eventually falls out.Show that above-mentioned coating has good anti-adhesion ability to thick liquid.
Coating surface is gently wiped repeatedly using black cotton or packaging material bend repeatedly multiple, does not observe that coating is opened
It splits, unsticking or picking phenomenon, white powder do not transfer to substantially above black cotton.Moreover, the coating through wiping across is still
So there is the anti-adhesion ability to above-mentioned Yoghourt or honey.Show that the adhesive force of above-mentioned anti-adhesion coating and packaging material is preferable.
By the packaging material of the anti-adhesion coating of above-mentioned coating and polystyrene cup carry out heat-sealing experiment (at 220 DEG C, 4kg's
Sealed 1 second under pressure), the heat seal strength measured after heat-sealing is about 13N/15mm, that is, is bonded stronger.
Embodiment 3
A kind of coating for liquid food/drug packing material, in parts by weight, including following component：
Low-surface-energy hydrophobic polymer micron particles are polypropylene micron powder, and grain size is 50 microns；Low-surface-energy is hydrophobic
Polymer nano granules are polypropylene nano powder, and grain size is 5 nanometers；Dispersant is palmitic acid；Thickener is Arabic gum.
The preparation method of the coating, includes the following steps：
(1) the polypropylene nano powder of formula ratio is added in the water-ethanol mixed solvent of formula ratio, and to mixture
The middle palmitic acid that formula ratio is added is used as dispersant；Using high pressure homogenizer high-speed stirred mixture at room temperature, squeeze out
Pressure is not less than 60MPa, and mixing time was controlled at 1-2 hours, obtained the dispersion liquid of nano polypropylene；
(2) the polypropylene micron powder of formula ratio is added in above-mentioned dispersion liquid, suitably being stirred using dispersion machine makes to gather
Propylene micron powder is uniformly dispersed wherein；The Arabic gum that formula ratio is added into the dispersion liquid, to increase the viscous of dispersion liquid
Degree and stability obtain the micro-nano coating of polypropylene after being sufficiently stirred.
Food/pharmaceutical packaging material is prepared using above-mentioned coating, preparation method includes：
Above-mentioned coating is sprayed to by pending food/pharmaceutical package material surface using spraying method, is formed by wet film
It is 100 seconds dry in 120 DEG C of baking oven, ultimately form the anti-adhesion coating with micro nano structure, low-surface-energy.
The coating does not find apparent particle precipitation or is precipitated after storing at normal temperatures and pressures 3 months, show its storage
Stability is preferable.
5 μ L water are added dropwise to measure coating to coating surface using contact angle measurement (DSA100, KRUSS, Germany)
Water contact angle.Experimental result is：The contact angle of itself and water droplet is more than 150 °, and roll angle is less than 1 °.Show above-mentioned anti-adhesion painting
Layer has excellent ultra-hydrophobicity.
Yoghourt (5% fat content), honey or liquid drug are dropped in into coating surface, bead can be formed in coating surface
It rolls and eventually falls out.Show that above-mentioned coating has good anti-adhesion ability to thick liquid.
Coating surface is gently wiped repeatedly using black cotton or packaging material bend repeatedly multiple, does not observe that coating is opened
It splits, unsticking or picking phenomenon, white powder do not transfer to substantially above black cotton.Moreover, the coating through wiping across is still
So there is the anti-adhesion ability to above-mentioned Yoghourt or honey.Show that the adhesive force of above-mentioned anti-adhesion coating and packaging material is preferable.
By the packaging material of the anti-adhesion coating of above-mentioned coating and polystyrene cup carry out heat-sealing experiment (at 220 DEG C, 4kg's
Sealed 1 second under pressure), the heat seal strength measured after heat-sealing is about 11N/15mm, that is, is bonded stronger.
Embodiment 4
A kind of coating for liquid food/drug packing material, in parts by weight, including following component：
Low-surface-energy hydrophobic polymer micron particles are polystyrene micron powder, and grain size is 15 microns；Low-surface-energy is dredged
Aqueous polymer nano particle is pipe/polyhenylethylene nano powder, and grain size is 100 nanometers；Dispersant is stearic acid；Thickener is carboxylic first
Base cellulose.
The preparation method of the coating, includes the following steps：
(1) the polyethylene nanometer powder of formula ratio is added in the water-ethanol mixed solvent of formula ratio, and to mixture
The middle stearic acid that formula ratio is added is used as dispersant；Using vacuum high speed dispersor high-speed stirred mixture at room temperature,
Agitating paddle rate is not less than 5000 revs/min, and mixing time was controlled at 1-2 hours, obtained the dispersion liquid of nano pipe/polyhenylethylene；
(2) the polystyrene micron powder of formula ratio is added in above-mentioned dispersion liquid, suitably being stirred using dispersion machine is made
Polystyrene micron powder is uniformly dispersed wherein；The carboxymethyl cellulose that formula ratio is added into the dispersion liquid, is divided with increasing
The viscosity and stability of dispersion liquid obtain the micro-nano coating of polystyrene after being sufficiently stirred.
Food/pharmaceutical packaging material is prepared using above-mentioned coating, preparation method includes：
Above-mentioned coating is applied to by pending food/pharmaceutical package material surface using spin coating method, is formed by wet film
It is 600 seconds dry in 80 DEG C of baking oven, ultimately form the anti-adhesion coating with micro nano structure, low-surface-energy.
The coating does not find apparent particle precipitation or is precipitated after storing at normal temperatures and pressures 3 months, show its storage
Stability is preferable.
5 μ L water are added dropwise to measure coating to coating surface using contact angle measurement (DSA100, KRUSS, Germany)
Water contact angle.Experimental result is：The contact angle of itself and water droplet is more than 152 °, and roll angle is less than 1 °.Show above-mentioned anti-adhesion painting
Layer has excellent ultra-hydrophobicity.
Yoghourt (5% fat content), honey or liquid drug are dropped in into coating surface, bead can be formed in coating surface
It rolls and eventually falls out.Show that above-mentioned coating has good anti-adhesion ability to thick liquid.
Coating surface is gently wiped repeatedly using black cotton or packaging material bend repeatedly multiple, does not observe that coating is opened
It splits, unsticking or picking phenomenon, white powder do not transfer to substantially above black cotton.Moreover, the coating through wiping across is still
So there is the anti-adhesion ability to above-mentioned Yoghourt or honey.Show that the adhesive force of above-mentioned anti-adhesion coating and packaging material is preferable.
By the packaging material of the anti-adhesion coating of above-mentioned coating and polystyrene cup carry out heat-sealing experiment (at 220 DEG C, 4kg's
Sealed 1 second under pressure), the heat seal strength measured after heat-sealing is about 13N/15mm, that is, is bonded stronger.
Embodiment 5
A kind of coating for liquid food/drug packing material, in parts by weight, including following component：
Low-surface-energy hydrophobic polymer micron particles are polystyrene micron powder, and grain size is 7 microns；Low-surface-energy is hydrophobic
Polymer nano granules are pipe/polyhenylethylene nano powder, and grain size is 50 nanometers；Dispersant is stearic acid；Thickener is that carboxymethyl is fine
Dimension element.
The preparation method of the coating, includes the following steps：
(1) the polyethylene nanometer powder of formula ratio is added in the water-ethanol mixed solvent of formula ratio, and to mixture
The middle stearic acid that formula ratio is added is used as dispersant；Using vacuum high speed dispersor high-speed stirred mixture at room temperature,
Agitating paddle rate is not less than 5000 revs/min, and mixing time was controlled at 1-2 hours, obtained the dispersion liquid of nano pipe/polyhenylethylene；
(2) the polystyrene micron powder of formula ratio is added in above-mentioned dispersion liquid, suitably being stirred using dispersion machine is made
Polystyrene micron powder is uniformly dispersed wherein；The carboxymethyl cellulose that formula ratio is added into the dispersion liquid, is divided with increasing
The viscosity and stability of dispersion liquid obtain the micro-nano coating of polystyrene after being sufficiently stirred.
Liquid food/pharmaceutical packaging material is prepared using above-mentioned coating, preparation method includes：
Above-mentioned coating is scratched to pending food/pharmaceutical package material surface using bar knife coating procedure, is formed by
Wet film is 30 seconds dry in 150 DEG C of baking oven, ultimately forms the anti-adhesion coating with micro nano structure, low-surface-energy.
The coating does not find apparent particle precipitation or is precipitated after storing at normal temperatures and pressures 3 months, show its storage
Stability is preferable.
5 μ L water are added dropwise to measure coating to coating surface using contact angle measurement (DSA100, KRUSS, Germany)
Water contact angle.Experimental result is：The contact angle of itself and water droplet is more than 151 °, and roll angle is less than 1 °.Show above-mentioned anti-adhesion painting
Layer has excellent ultra-hydrophobicity.
Yoghourt (5% fat content), honey or liquid drug are dropped in into coating surface, bead can be formed in coating surface
It rolls and eventually falls out.Show that above-mentioned coating has good anti-adhesion ability to thick liquid.
Coating surface is gently wiped repeatedly using black cotton or packaging material bend repeatedly multiple, does not observe that coating is opened
It splits, unsticking or picking phenomenon, white powder do not transfer to substantially above black cotton.Moreover, the coating through wiping across is still
So there is the anti-adhesion ability to above-mentioned Yoghourt or honey.Show that the adhesive force of above-mentioned anti-adhesion coating and packaging material is preferable.
By the packaging material of the anti-adhesion coating of above-mentioned coating and polystyrene cup carry out heat-sealing experiment (at 220 DEG C, 4kg's
Sealed 1 second under pressure), the heat seal strength measured after heat-sealing is about 11N/15mm, that is, is bonded stronger.
Embodiment 6
A kind of coating for liquid food/drug packing material removes in parts by weight, including following component：
The preparation method of the coating and the preparation method of liquid food/drug packing material are corresponding to embodiment 1
Preparation method it is identical.
The coating does not find apparent particle precipitation or is precipitated after storing at normal temperatures and pressures 3 months, show its storage
Stability is preferable.
5 μ L water are added dropwise to measure coating to coating surface using contact angle measurement (DSA100, KRUSS, Germany)
Water contact angle.Experimental result is：The contact angle of itself and water droplet is more than 150 °, and roll angle is less than 1 °.Show above-mentioned anti-adhesion painting
Layer has excellent ultra-hydrophobicity.
Yoghourt (5% fat content), honey or liquid drug are dropped in into coating surface, bead can be formed in coating surface
It rolls and eventually falls out.Show that above-mentioned coating has good anti-adhesion ability to thick liquid.
Coating surface is gently wiped repeatedly using black cotton or packaging material bend repeatedly multiple, does not observe that coating is opened
It splits, unsticking or picking phenomenon, white powder do not transfer to substantially above black cotton.Moreover, the coating through wiping across is still
So there is the anti-adhesion ability to above-mentioned Yoghourt or honey.Show that the adhesive force of above-mentioned anti-adhesion coating and packaging material is preferable.
By the packaging material of the anti-adhesion coating of above-mentioned coating and polystyrene cup carry out heat-sealing experiment (at 220 DEG C, 4kg's
Sealed 1 second under pressure), the heat seal strength measured after heat-sealing is about 10N/15mm, that is, is bonded stronger.
Embodiment 7
A kind of coating for liquid food/drug packing material removes in parts by weight, including following component：
The preparation method of the coating and the preparation method of liquid food/drug packing material are corresponding to embodiment 1
Preparation method it is identical.
The coating does not find apparent particle precipitation or is precipitated after storing at normal temperatures and pressures 3 months, show its storage
Stability is preferable.
5 μ L water are added dropwise to measure coating to coating surface using contact angle measurement (DSA100, KRUSS, Germany)
Water contact angle.Experimental result is：The contact angle of itself and water droplet is more than 150 °, and roll angle is less than 1 °.Show above-mentioned anti-adhesion painting
Layer has excellent ultra-hydrophobicity.
Yoghourt (5% fat content), honey or liquid drug are dropped in into coating surface, bead can be formed in coating surface
It rolls and eventually falls out.Show that above-mentioned coating has good anti-adhesion ability to thick liquid.
Coating surface is gently wiped repeatedly using black cotton or packaging material bend repeatedly multiple, does not observe that coating is opened
It splits, unsticking or picking phenomenon, white powder do not transfer to substantially above black cotton.Moreover, the coating through wiping across is still
So there is the anti-adhesion ability to above-mentioned Yoghourt or honey.Show that the adhesive force of above-mentioned anti-adhesion coating and packaging material is preferable.
By the packaging material of the anti-adhesion coating of above-mentioned coating and polystyrene cup carry out heat-sealing experiment (at 220 DEG C, 4kg's
Sealed 1 second under pressure), the heat seal strength measured after heat-sealing is about 10N/15mm, that is, is bonded stronger.
Comparative example 1
A kind of coating, except the polystyrene that the pipe/polyhenylethylene nano powder in embodiment 1 is replaced with to identical weight part is micro-
Rice flour end is outer, remaining is same as Example 1.
5 μ L water are added dropwise to measure coating to coating surface using contact angle measurement (DSA100, KRUSS, Germany)
Water contact angle.Experimental result is：The contact angle of itself and water droplet is more than 150 °, and roll angle is less than 1 °.Show above-mentioned anti-adhesion painting
Layer has ultra-hydrophobicity.
Yoghourt (5% fat content), honey or liquid drug are dropped in into coating surface, surface, which can be hung, applies a little liquid
Body.
Using black cotton gently wipe coating surface repeatedly or packaging material bend repeatedly it is multiple, observe coating cracking,
Unsticking or picking phenomenon.
By the packaging material of the anti-adhesion coating of above-mentioned coating and polystyrene cup carry out heat-sealing experiment (at 220 DEG C, 4kg's
Sealed 1 second under pressure), the heat seal strength measured after heat-sealing is about 8N/15mm.
Comparative example 2
A kind of coating, except the polystyrene that the polystyrene micron powder in embodiment 1 is replaced with to identical weight part is received
Rice flour end is outer, remaining is same as Example 1.
5 μ L water are added dropwise to measure coating to coating surface using contact angle measurement (DSA100, KRUSS, Germany)
Water contact angle.Experimental result is：The contact angle of itself and water droplet is more than 150 °, and roll angle is less than 1 °.Show above-mentioned anti-adhesion painting
Layer has ultra-hydrophobicity.
Yoghourt (5% fat content), honey or liquid drug are dropped in into coating surface, surface, which can be hung, applies a little liquid
Body.
Using black cotton gently wipe coating surface repeatedly or packaging material bend repeatedly it is multiple, observe coating cracking,
Unsticking or picking phenomenon.
By the packaging material of the anti-adhesion coating of above-mentioned coating and polystyrene cup carry out heat-sealing experiment (at 220 DEG C, 4kg's
Sealed 1 second under pressure), the heat seal strength measured after heat-sealing is about 7.5N/15mm.
Comparative example 3
Except the forced drying temperature in embodiment 1 is adjusted to 75 DEG C, drying time is adjusted to outside 500s, remaining and implementation
Example 1 is identical.
5 μ L water are added dropwise to measure coating to coating surface using contact angle measurement (DSA100, KRUSS, Germany)
Water contact angle.Experimental result is：The contact angle of itself and water droplet is more than 150 °, and roll angle is less than 1 °.Show above-mentioned anti-adhesion painting
Layer has ultra-hydrophobicity.
Yoghourt (5% fat content), honey or liquid drug are dropped in into coating surface, bead can be formed in coating surface
It rolls and eventually falls out.Show that above-mentioned coating has good anti-adhesion ability to thick liquid
Coating surface is gently wiped repeatedly using black cotton or packaging material bend repeatedly multiple, observes that coating is opened
Split, unsticking or picking phenomenon.
By the packaging material of the anti-adhesion coating of above-mentioned coating and polystyrene cup carry out heat-sealing experiment (at 220 DEG C, 4kg's
Sealed 1 second under pressure), the heat seal strength measured after heat-sealing is about 8N/15mm, that is, influences the heat seal strength of packaging material.
Comparative example 4
Except the forced drying temperature in embodiment 1 is adjusted to 155 DEG C, drying time is adjusted to outside 100s, remaining and reality
It is identical to apply example 1.
5 μ L water are added dropwise to measure coating to coating surface using contact angle measurement (DSA100, KRUSS, Germany)
Water contact angle.Experimental result is：The contact angle of itself and water droplet is more than 150 °, and roll angle is less than 1 °.Show above-mentioned anti-adhesion painting
Layer has ultra-hydrophobicity.
Yoghourt (5% fat content), honey or liquid drug are dropped in into coating surface, bead can be formed in coating surface
It rolls and eventually falls out.
Coating surface is gently wiped repeatedly using black cotton or packaging material bend repeatedly multiple, observes that coating is opened
Split, unsticking or picking phenomenon.
By the packaging material of the anti-adhesion coating of above-mentioned coating and polystyrene cup carry out heat-sealing experiment (at 220 DEG C, 4kg's
Sealed 1 second under pressure), the heat seal strength measured after heat-sealing is about 8N/15mm, that is, influences the heat seal strength of packaging material.
Applicant states, the foregoing is merely the specific implementation mode of the present invention, but protection scope of the present invention not office
It is limited to this, person of ordinary skill in the field is it will be clearly understood that any belong to those skilled in the art and taken off in the present invention
In the technical scope of dew, the change or replacement that can be readily occurred in are all fallen within protection scope of the present invention and the open scope.
Claims (10)
1. a kind of coating for liquid food/drug packing material, which is characterized in that described to be used for liquid food/drug packet
The coating of package material includes low-surface-energy hydrophobic polymer micron particles and low-surface-energy hydrophobic nanoparticles.
2. the coating according to claim 1 for liquid food/drug packing material, which is characterized in that the low table
Face energy hydrophobic polymer micron particles and the mass ratio of low-surface-energy hydrophobic nanoparticles are (1-5):(1-10)；
Preferably, the low-surface-energy hydrophobic polymer micron particles are selected from polystyrene micron particles, polyethylene micron particles
In polypropylene micron particles any one or at least two combination；
Preferably, the grain size of the low-surface-energy hydrophobic polymer micron particles is 2-50 microns, preferably 2-15 microns；
Preferably, the low-surface-energy hydrophobic polymer nano particle is selected from polystyrene nanoparticles, polyethylene nano particle
In polypropylene nano particle any one or at least two combination；
Preferably, the grain size of the low-surface-energy hydrophobic polymer nano particle is at 5-200 nanometers, preferably 10-100 nanometers；
Preferably, the coating for liquid food/drug packing material further includes solvent, and the solvent can be swollen low table
It face can hydrophobic polymer micron particles and low-surface-energy hydrophobic nanoparticles；
Preferably, the solvent is selected from the mixed liquor of second alcohol and water, and second alcohol and water weight ratio is (30-87):(10-50)；
Preferably, in parts by weight, the coating for liquid food/drug packing material includes following component：
Preferably, the dispersant in stearic acid, stearates, oleic acid or palmitic acid any one or at least two
Combination；
Preferably, the thickener in carboxymethyl cellulose, ethyl cellulose or Arabic gum any one or at least
Two kinds of combination.
3. the preparation method of the coating according to claim 1 or 2 for liquid food/drug packing material, feature
It is, the preparation method includes：
(1) low-surface-energy hydrophobic nanoparticles are scattered in solvent, obtain the first mixed liquor；
(2) the hydrophobic micron particles of low-surface-energy are scattered in the first mixed liquor, are obtained described for liquid food/Key works Drug packing
The coating of material；
Preferably, low-surface-energy hydrophobic nanoparticles are scattered in solvent by step (1) using high-speed dispersion equipment；
Preferably, the high-speed dispersion equipment is arbitrary in vacuum high speed dispersion agent, high pressure homogenizer or nano bead mill
It is a kind of or at least two combination；
Preferably, the rotating speed of the high-speed dispersion equipment is 3000-6000r/min, mixing time 5-60min；Alternatively, described
The extrusion pressure of high-speed dispersion equipment is not less than 60MPa；
Preferably, it is additionally added dispersant in step (1) described solvent；
Preferably, the hydrophobic micron particles of low-surface-energy are scattered in the first mixed liquor by step (2) under agitation；
Preferably, thickener is additionally added after the hydrophobic micron particles of low-surface-energy being scattered in the first mixed liquor；
Preferably, the preparation method includes the following steps：
(1) the low-surface-energy hydrophobic nanoparticles of formula ratio are scattered in the second alcohol and water of formula ratio using high-speed dispersion equipment
In mixed liquor, and the dispersant of formula ratio is added, obtains the first mixed liquor；
(2) the hydrophobic micron particles of the low-surface-energy of formula ratio are scattered in the first mixed liquor, the thickening of formula ratio is added later
Agent obtains the coating for being used for liquid food/drug packing material.
4. a kind of food/pharmaceutical packaging material, which is characterized in that the food/pharmaceutical package material surface is provided with coating, institute
Coating is stated to obtain using the coating preparation for being used for liquid food/drug packing material described in claims 1 or 22.
5. the preparation method of food/pharmaceutical packaging material according to claim 4, which is characterized in that the preparation method
Including：It will be coated on pending food/pharmaceutical package material surface for the coating of liquid food/drug packing material, forced
It is dry, obtain food/pharmaceutical packaging material；
Preferably, the mode of the coating in roller coating, spraying or spin coating any one or at least two combination；
Preferably, the temperature of the force drying can be received low-surface-energy hydrophobic polymer micron particles and low-surface-energy are hydrophobic
Rice grain softens；
Preferably, the temperature of the force drying is 80-150 DEG C；
Preferably, the time of the force drying is 30-600s.
6. a kind of method improving the coating storage stability for liquid food/drug packing material, which is characterized in that described
Method uses the coating as claimed in claim 1 or 2 for liquid food/drug packing material.
7. a kind of preparation method of the liquid food with ultra-hydrophobicity/drug packing material coating, which is characterized in that described
Preparation method uses the coating as claimed in claim 1 or 2 for liquid food/drug packing material.
8. a kind of method improving liquid food/drug packing material anti-attachment performance, which is characterized in that the method is using power
Profit requires the coating for liquid food/drug packing material described in 1 or 2.
9. a kind of method improving liquid food/drug packing material face coat wearability, which is characterized in that the method is adopted
With the coating as claimed in claim 1 or 2 for liquid food/drug packing material.
10. a kind of raising liquid food/drug packing material face coat is to the method for original packing material adhesion strength, feature
It is, the method uses the coating as claimed in claim 1 or 2 for liquid food/drug packing material.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453526A (en) * | 2019-08-19 | 2019-11-15 | 东北林业大学 | A method of utilizing edible used additives building automatically cleaning and super hydrophobic functional paper |
| CN111718620A (en) * | 2020-07-10 | 2020-09-29 | 广州希森美克新材料科技股份有限公司 | Wear-resistant food-grade super-hydrophobic nano coating not stained with yoghourt |
| CN114474915A (en) * | 2021-12-31 | 2022-05-13 | 毕玛时软包装（苏州）有限公司 | Composite film, preparation method thereof and packaging structure |
| CN115926229A (en) * | 2022-12-30 | 2023-04-07 | 湖南工业大学 | Polypropylene film with super-hydrophobicity and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102597067A (en) * | 2009-08-19 | 2012-07-18 | 荷兰联合利华有限公司 | Ultrahydrophobic coating and method for making the same |
| CN106085070A (en) * | 2016-07-11 | 2016-11-09 | 复旦大学 | A kind of low-surface-energy micro nano-coatings material and preparation method thereof |
| CN106715124A (en) * | 2014-09-12 | 2017-05-24 | 电化株式会社 | Liquid-repellent resin sheet, and building material sheet and life goods packaging material in which same is used |
| CN106752899A (en) * | 2015-11-24 | 2017-05-31 | 北京印刷学院 | A kind of extrusion coating paper and composite plastic film packaging material preparation method with double-hydrophobic surface |
| CN106893454A (en) * | 2017-04-21 | 2017-06-27 | 黑龙江凯恩琪新材料科技有限公司 | A kind of preparation method of sprayable and durable super-amphiphobic coating |
| CN107150465A (en) * | 2017-06-06 | 2017-09-12 | 上海天臣防伪技术股份有限公司 | Polymer film and preparation method thereof, application |
-
2018
- 2018-04-13 CN CN201810331754.3A patent/CN108504198A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102597067A (en) * | 2009-08-19 | 2012-07-18 | 荷兰联合利华有限公司 | Ultrahydrophobic coating and method for making the same |
| CN106715124A (en) * | 2014-09-12 | 2017-05-24 | 电化株式会社 | Liquid-repellent resin sheet, and building material sheet and life goods packaging material in which same is used |
| CN106752899A (en) * | 2015-11-24 | 2017-05-31 | 北京印刷学院 | A kind of extrusion coating paper and composite plastic film packaging material preparation method with double-hydrophobic surface |
| CN106085070A (en) * | 2016-07-11 | 2016-11-09 | 复旦大学 | A kind of low-surface-energy micro nano-coatings material and preparation method thereof |
| CN106893454A (en) * | 2017-04-21 | 2017-06-27 | 黑龙江凯恩琪新材料科技有限公司 | A kind of preparation method of sprayable and durable super-amphiphobic coating |
| CN107150465A (en) * | 2017-06-06 | 2017-09-12 | 上海天臣防伪技术股份有限公司 | Polymer film and preparation method thereof, application |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453526A (en) * | 2019-08-19 | 2019-11-15 | 东北林业大学 | A method of utilizing edible used additives building automatically cleaning and super hydrophobic functional paper |
| CN111718620A (en) * | 2020-07-10 | 2020-09-29 | 广州希森美克新材料科技股份有限公司 | Wear-resistant food-grade super-hydrophobic nano coating not stained with yoghourt |
| CN111718620B (en) * | 2020-07-10 | 2021-11-19 | 广州希森美克新材料科技股份有限公司 | Wear-resistant food-grade super-hydrophobic nano coating not stained with yoghourt |
| CN114474915A (en) * | 2021-12-31 | 2022-05-13 | 毕玛时软包装（苏州）有限公司 | Composite film, preparation method thereof and packaging structure |
| CN114474915B (en) * | 2021-12-31 | 2023-10-10 | 毕玛时软包装（苏州）有限公司 | Composite film, preparation method thereof and packaging structure |
| CN115926229A (en) * | 2022-12-30 | 2023-04-07 | 湖南工业大学 | Polypropylene film with super-hydrophobicity and preparation method thereof |
| CN115926229B (en) * | 2022-12-30 | 2024-03-29 | 湖南工业大学 | Polypropylene film with superhydrophobicity and preparation method thereof |
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Application publication date: 20180907 |