CN107103836A - In-mold labels material and its application process - Google Patents
In-mold labels material and its application process Download PDFInfo
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- CN107103836A CN107103836A CN201710539296.8A CN201710539296A CN107103836A CN 107103836 A CN107103836 A CN 107103836A CN 201710539296 A CN201710539296 A CN 201710539296A CN 107103836 A CN107103836 A CN 107103836A
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- Prior art keywords
- mold labels
- mucigel
- basement membrane
- groove
- printing layer
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of in-mold labels material and its application process, in-mold labels material include basement membrane, be attached to the basement membrane printing layer and be attached in the basement membrane away from the printing layer while mucigel.Mucigel is melted in affixed object, and combined together with the superficial layer of affixed object, basement membrane is bonded in affixed object with mucigel, other materials layer is not separated between printing layer and base membrane layer and mucigel and base membrane layer, gap between three is smaller, air is not easily accessible, without having to worry about during melt bonded, bubbling problem caused by the air between three；Basement membrane plays a supportive role to printing layer and mucigel, in-mold labels material is had certain deflection, does not allow to crease easily when melting labeling；In-mold labels materials application of the present invention improves the yield and stock utilization of product, reduces waste of material, also improve production efficiency in in-mold labels finished product.
Description
Technical field
The present invention relates to packaging material and its processing technique field, more particularly, to in-mold labels and its application process.
Background technology
Existing label is mostly paper labels or plastic label, is pasted on by adhesive on container, such as Shampoo bottle,
On shower cream bottle, bottle etc., this label is in wet environment, and label is easily mouldy, is easily peeled off after moisture absorption, damages commodity shape
As also result in many places rubbish, being not easy to cleaning and reclaim.
With the development of industrial technology, in-mold labels are occurred in that, in-mold labels refer to the label that will be printed, and the back side is scribbled
Hot melt adhesive, is placed on inside model before plastic blown, injection or thermoforming, to generate plastic bottle or basin or other containers
Deng.Label forms a whole with container, and label and container are basic in approximately the same plane.But existing in-mold labels material layer
It is more complicated, containing being separated with other materials layer between base membrane layer and mucigel or base membrane layer and printing layer so that processing request
It is higher, and be also easy to produce when being heat-fused in vessel surface bubbling or the problem of label surface has corrugation, influence product yield, waste
Material.
The content of the invention
Based on this, the present invention provides a kind of in-mold labels material and its application process, and its is simple in construction, applied to mould internal standard
When signing finished product, will not bubbling or corrugation, improve product yield and production efficiency, and processing technology is simple, it is easy to operate.
In order to realize the purpose of the present invention, the present invention uses following technical scheme：
A kind of in-mold labels material, including basement membrane, be attached to basement membrane one side printing layer and be attached to remote in basement membrane
The one side away from basement membrane is provided with air discharge duct in the mucigel of the one side of printing layer, mucigel.
Above-mentioned in-mold labels material, mucigel is melted in affixed object, and is combined together with the superficial layer of affixed object, basement membrane with
Mucigel and be bonded in affixed object, be not separated with other materials layer, three between printing layer and base membrane layer and mucigel and base membrane layer
Between gap it is smaller, be not easily accessible air, without having to worry about during melt bonded, bubbling caused by the air between three
Problem；Basement membrane plays a supportive role to printing layer and mucigel, in-mold labels material is had certain deflection, when melting labeling
Do not allow to crease easily；Mucigel is provided with air discharge duct, be conducive to mucigel it is melt bonded in affixed object when discharge sky between the two
Gas, it is to avoid wrap into air between in-mold labels material and affixed object, heaves under the influence of expanding with heat and contract with cold and plays fold；The present invention
In-mold labels materials application improves the yield and stock utilization of product, reduces waste of material, also in in-mold labels finished product
Improve production efficiency.
In one of the embodiments, air discharge duct is some grooves, and groove extends from the middle part of mucigel toward edge, some
The linear type groove of groove or bending line style groove.
In one of the embodiments, groove is linear type groove, and some channel alignments are in groined type or M shape.
In one of the embodiments, the groove width of groove is 65~120 μm, and the depth of groove is equal to 0.7~1 times of mucigel
Thickness.
In one of the embodiments, basement membrane for PP (polypropylene) or PE (polyethylene) or PP and PE mixing material or
PET (polyethylene terephthalate) or paper.
In one of the embodiments, the viscose of mucigel is selected from EVA (ethylene-vinyl acetate copolymer), EAA (ethene
Acrylic copolymer), one or more of mixing in EEA (ethylene ethyl acrylate) and PA (polyamide).
The application process of above-mentioned in-mold labels material, comprises the following steps：
Prepare in-mold labels material：One basement membrane is provided, basement membrane is surface-treated, basement membrane a face printed patterns or
The combination of word or both, forms printing layer；Viscose is heated and melted, is coated in the molten state in calendering mode in basement membrane
One side away from printing layer, forms mucigel, and carries out embossed to mucigel, obtains in-mold labels material；
Prepare finished product：The in-mold labels material obtained is positioned to the inwall for being positioned over mould, by the affixed object of melting
In material injecting mould, the temperature of the raw material of the affixed object of melting melts mucigel the one side in affixed object, in-mold labels
Material combines together with affixed object；Combined pressure, cooling obtains the finished product of in-mold labels.
In one of the embodiments, it is 50~120 DEG C that calendering mode, which coats viscose and the temperature of embossed, calendering
Pressure is 1~6T, and the pressure of embossed is 0.5~1.5T.
In one of the embodiments, the pressure for preparing the combined pressure in finished product is 2~6atm.
In one of the embodiments, the material of basement membrane and the affixed object is same or like.
Brief description of the drawings
Fig. 1 is the schematic diagram of the in-mold labels material of a better embodiment of the invention；
Fig. 2 is the schematic diagram of the air discharge duct of the embodiment 1,2 and 5 of in-mold labels material of the present invention；
Fig. 3 for in-mold labels material of the present invention application process in embodiment 1 in-mold labels finished product sectional view；
Fig. 4 is the schematic diagram of the air discharge duct of the embodiment 3 and 4 of in-mold labels material of the present invention.
Embodiment
For the ease of understanding the present invention, the present invention will be described more fully below.But, the present invention can be with perhaps
More different form is realized, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is to make
Understanding to the disclosure is more thorough comprehensive.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
The present invention provides a kind of in-mold labels material 10, applied to in-mold labels finished product, as shown in figure 1, the mould internal standard
Label material 10 includes basement membrane 12, is attached to the printing layer 11 of the one side of basement membrane 12 and is attached in basement membrane 12 away from printing layer 11
Mucigel 13 simultaneously.
Wherein, basement membrane 12 for PP or PE or PP and PE mixing material or PET, the viscose of mucigel 13 be selected from EVA, EAA,
One or more of mixing in EEA and PA.
Further, the one side away from basement membrane 12 is provided with air discharge duct 14 in mucigel 13, and air discharge duct 14 is some grooves, ditch
Groove extends from the middle part of mucigel 13 toward edge, to discharge mucigel 13 and affixed object during mucigel 13 is melt bonded
Between air, it is to avoid the situation of bubbling.
In some embodiments, some grooves are in regularly arranged, such as linear horizontal line groove or vertical line groove, in well
Font or M shape；Or some grooves are in irregular alignment, the curved grooves of such as flexure type.Wherein, more preferably from linear pattern
Horizontal line groove or vertical line groove, the distance of air discharge is shorter, and does not have during discharge the place of bending, reduces
The resistance of discharge, accelerates the speed of air discharge.
Further, the spacing distance of adjacent horizontal line groove or vertical line groove or oblique line groove is 0.1~1.5cm.Between
When gauge is from less than 0.1cm, air enters after groove, is mutually extruded between adjacent groove, is also easy to produce groove and is destroyed, causes
The problem of exhaust has some setbacks, or even at destroyed place, air is excessively concentrated, and formation is heaved；When spacing distance is more than 1.5cm, ditch
The density of groove is smaller, and exhaust efficiency is not high；Arranged when adjacent horizontal line groove or the spacing distance of vertical line groove is 0.1~1.5cm
Gas best results, and be not in groove it is damaged and the problem of influence exhaust.
In some embodiments, the groove width of groove is 65~120 μm, and the depth of groove is equal to the thickness of 0.7~1 times of mucigel
Degree.When the groove width of groove is less than 65 μm, the resistance that air enters groove is larger, and exhaust effect is undesirable；Base at groove
Film 12 and printing layer 11 have a pair of opposite effect power with the air in groove, when the groove width of groove is more than 120 μm, at groove
Basement membrane 12 and the active force of printing layer 11 are less than the active force in groove in air, then can produce the basement membrane 12 at groove and printing
The situation that layer 11 is heaved or wrinkled；So when the groove width of groove is 65~120 μm, it is anti-heave it is preferable with exhaust effect.Groove
Depth is equal to saturation of the thickness increase groove to air of 0.7~1 times of mucigel 13, beneficial to exhaust.
The application process of above-mentioned in-mold labels material 10, comprises the following steps：
Prepare in-mold labels material：One basement membrane 12 is provided, basement membrane 12 is surface-treated, is printed in the one side of basement membrane 12
The combination of pattern or word or both, forms printing layer 11.Viscose is heated and melted, temperature is 50~120 DEG C, in molten condition
Under the one side away from printing layer 11 in basement membrane 12 is coated in calendering mode, the pressure of calendering is 1~6T, forms mucigel 13,
And embossed is carried out to mucigel 13, the pressure of embossed is 0.5~1.5T, rapid cooling, the speed of cooling be more than
15 DEG C/min, if because the melting temperature of viscose is too slow far above the temperature cooling velocity that basement membrane 12 softens, the easy quilt of basement membrane 12
The viscose of high temperature scalds deformation, on the other hand need to cool down the viscose of high temperature rapidly, eliminates the viscosity of viscose, makes in-mold labels material
Adhesion after the winding of material 10.
It is cooled to after room temperature, obtains in-mold labels material 10.
It should be noted that：To basement membrane 12 carry out surface treatment refer to printing anti-static coating processing, primary coat processing or
Sided corona treatment.The especially plastic sheeting of basement membrane 12 is easy to produce electrostatic in production, and multiple basement membranes 12 are easy due to electrostatic interaction
Absorption is difficult to separate, and is unfavorable in bid, poster process easily marking again, easily causes and labels bad and cause spillage of material, also not
Beneficial to automation mechanized operation, antistatic process is conducive to above mentioned problem to solve, and primary coat processing or sided corona treatment are mainly reinforcement viscose
The conjugation of layer 13 and basement membrane 12.
In addition, after calendering coating viscose, obtaining smooth mucigel 13, then mucigel 13 being carried out at embossing at once
Reason, obtains the mucigel 13 with air discharge duct 14, that is, the temperature rolled and embossed is at 50~120 DEG C.Wherein, when viscose is
During one or more of mixtures in EVA, EAA and EEA, calendering and embossing temperature select 50~90 DEG C；When viscose selects PA,
Or during mixture containing PA, calendering and embossing temperature select 80~120 DEG C.When the pressure of calendering is less than 0.5T, viscose and base
Film 12 may loose contact and can not effectively be attached to the surface of basement membrane 12, cause viscose to separate or skewness；The pressure of calendering
When power is more than 6T, viscose can be caused to deform, the flatness of influence mucigel 13 and basement membrane 12.Similarly, the pressure of embossed is small
When 0.5T, the air discharge duct 14 extruded is relatively inaccessible to the requirement of default gash depth, and the pressure of embossed is more than 1.5T
When, air discharge duct 14 may be deformed, and influence normal exhaust demand.
Prepare finished product：The in-mold labels material 10 obtained is cut to suitable size, the in-mold labels material after cutting is taken
The positioning of material 10 is positioned over the inwall of mould, and by the material injecting mould of the affixed object of melting, the raw material of affixed object is expansion-molded,
The temperature of the raw material of the affixed object of melting is higher, and mucigel 13 melted into the one side in affixed object, in-mold labels material 10 with
Affixed object combines together.Combined pressure, pressure is 2~6atm, and when combined pressure pressure is less than 2atm, in-mold labels material 10 is with contacting loosely
Or it is uneven, bond uneven；When combined pressure pressure is more than 6atm, affixed object may be deformed, and cause bad；Combined pressure pressure is 2
During~6atm, best results.
Room temperature is cooled to, the finished product of in-mold labels is obtained.
In some embodiments, basement membrane 12 is identical with the material of affixed object, i.e., when basement membrane 12 is from PP, and affixed object is also PP materials
What material was made, when basement membrane 12 is from PE, affixed object is what PE materials were made, by that analogy.In order to recycle, meet environmental protection
Demand, and it is identical with the fusing point of material, the fusing of mucigel 13 is bonded in behind affixed object surface, basement membrane 12 is close with affixed object
Side also softens, and is bonded with affixed object closer.
Above-mentioned in-mold labels material 10, mucigel 13 is melted in the one side of affixed object, and with the one side of affixed object
Superficial layer combines together, and basement membrane 12 is bonded in affixed object with mucigel 13, printing layer 11 and base membrane layer 12 and mucigel 13 with
The gap not being separated between base membrane layer 12 between other materials layer, three is smaller, is not easily accessible air, without having to worry about viscous in melting
During conjunction, bubbling problem caused by the air between three.Basement membrane 12 plays a supportive role to printing layer 11 and mucigel 13, makes
In-mold labels material 10 has certain deflection, does not allow to crease easily when melting labeling.In addition, mucigel 13 is provided with air discharge duct
14, beneficial to the air between discharge in-mold labels material 10 and affixed object, reduce bubbling and corrugated probability.Mould internal standard of the present invention
Materials application is signed in in-mold labels finished product, the yield and stock utilization of product is improved, reduces waste of material, also improve
Production efficiency, and the operation of its application process is simpler, it is easy to promote.
It is embodiment explanation below.
Embodiment 1
The in-mold labels material 10 of the present embodiment, applied to in-mold labels finished product, the in-mold labels material 10 includes base
Film 12, be attached to basement membrane 12 printing layer 11 and be attached in basement membrane 12 away from printing layer 11 while mucigel
13, the thickness of printing layer 11 is 70 μm, and the thickness of basement membrane 12 is 1.2mm, and mucigel 13 is 0.3mm.
Wherein, basement membrane 12 is PP, and the viscose of mucigel 13 selects EVA.
Further, the one side away from basement membrane 12 is provided with air discharge duct 14 in mucigel 13, and air discharge duct 14 is some grooves, ditch
Groove extends from the middle part of mucigel 13 toward edge.As shown in Fig. 2 some grooves are in regularly arranged, it is linear type groove, in well word
Shape, to accelerate the speed of air discharge.
In the present embodiment, adjacent horizontal line groove or the spacing distance of vertical line groove are 0.5cm.
In the present embodiment, the groove width of groove is 65 μm, and the depth of groove is equal to the thickness of 0.9 times of mucigel 13.
The application process of above-mentioned in-mold labels material 10, the affixed object of the present embodiment is the bottle 21 of PP materials, the application
Method comprises the following steps：
Prepare in-mold labels material 10：One basement membrane 12 is provided, the processing of printing anti-static coating and corona are carried out to basement membrane 12
Processing, in a face printed patterns of basement membrane 12, forms printing layer 11.Viscose is heated and melted, temperature is 50~80 DEG C, in melting
The one side away from printing layer 11 in basement membrane 12 is coated in calendering mode under state, the pressure of calendering is 1T, forms mucigel 13,
And embossed is carried out to mucigel 13, the pressure of embossed is 0.8T, and rapid cooling, cooling velocity is 16 DEG C/min, cold
But to after room temperature, in-mold labels material 10 is obtained.
Prepare finished product：The in-mold labels material 10 obtained is cut to suitable size, the in-mold labels material after cutting is taken
The positioning of material 10 is positioned over the inwall of mould, and by the PP material injecting moulds of melting, expansion-molded PP raw materials are bottle 21, extruding
To in-mold labels material 10, in-mold labels material 10 is adjacent to bottle 21, now, and the temperature of bottle 21 remains at PP raw material fusing points
Temperature is about 170 DEG C, higher than the fusing point of EVA viscoses, as shown in figure 3, the temperature of bottle 21 melts mucigel 13 in bottle 21
One side, in-mold labels material 10 combines together with bottle 21.Combined pressure, pressure is 2atm, is cooled to room temperature, obtains mould internal standard
The finished product 20 of label.
Embodiment 2
The in-mold labels material 10 of the present embodiment, applied to in-mold labels finished product, the in-mold labels material 10 includes base
Film 12, be attached to basement membrane 12 printing layer 11 and be attached in basement membrane 12 away from printing layer 11 while mucigel
13, the thickness of printing layer 11 is 55 μm, and the thickness of basement membrane 12 is 1.2mm, and mucigel 13 is 0.5mm.
Wherein, basement membrane 12 is PE, and the viscose of mucigel 13 selects EVA and EAA mixture.
Further, the one side away from basement membrane 12 is provided with air discharge duct 14 in mucigel 13, and air discharge duct 14 is some grooves, ditch
Groove extends from the middle part of mucigel toward edge, and some grooves are linear type groove, in groined type.
Further, the spacing distance of adjacent horizontal line groove or vertical line groove is 0.1cm.
In some embodiments, the groove width of groove is 95 μm, and the depth of groove is equal to the thickness of 0.8 times of mucigel.
The application process of above-mentioned in-mold labels material 10, the affixed object of the present embodiment is the basin of PE materials, including following
Step：
Prepare in-mold labels material 10：One basement membrane 12 is provided, the processing of printing anti-static coating and corona are carried out to basement membrane 12
Processing, in the face printed patterns and word of basement membrane 12, forms printing layer 11.Viscose is heated and melted, temperature is 50~80 DEG C,
The one side away from printing layer 11 in basement membrane 12 is coated in calendering mode in the molten state, the pressure of calendering is 1T, forms glutinous
Glue-line 13, and embossed is carried out to mucigel 13, the pressure of embossed is 0.5T, rapid cooling, cooling velocity is 25 DEG C/
Min, is cooled to after room temperature, obtains in-mold labels material 10.
Prepare finished product：The in-mold labels material 10 obtained is cut to suitable size, the in-mold labels material after cutting is taken
The positioning of material 10 is positioned over the inwall of mould, by the PE material injecting moulds of melting, the expansion-molded basin of PE raw materials, the PE of melting
Material temperature is higher, and mucigel 13 is melted into the one side in basin, and in-mold labels material 10 combines together with basin.Combined pressure,
Pressure is 2atm, is cooled to room temperature, obtains the finished product of in-mold labels.
Embodiment 3
The in-mold labels material 10 of the present embodiment, applied to in-mold labels finished product, the in-mold labels material 10 includes base
Film 12, be attached to basement membrane 12 printing layer 11 and be attached in basement membrane 12 away from printing layer 11 while mucigel
13, the thickness of printing layer 11 is 55 μm, and the thickness of basement membrane 12 is 1.5mm, and mucigel 13 is 0.5mm.
Wherein, basement membrane 12 is PP and PE mixing material, and the viscose of mucigel 13 is selected from EEA.
Further, as shown in figure 4, the one side away from basement membrane 12 is provided with air discharge duct 14 in mucigel 13, air discharge duct 14 is
Some grooves, groove extends from the middle part of mucigel 13 toward edge, and some grooves are linear type groove, in M shape.
Further, the spacing distance of adjacent horizontal line groove or vertical line groove or oblique line groove is 0.1cm.
In some embodiments, the groove width of groove is 100 μm, and the depth of groove is equal to the thickness of 0.7 times of mucigel 13.
The application process of above-mentioned in-mold labels material 10, the mixing material that the affixed object of the present embodiment is PP and PE is made
Bottle, the application process comprises the following steps：
Prepare in-mold labels material 10：One basement membrane 12 is provided, the processing of printing anti-static coating and corona are carried out to basement membrane 12
Processing, in a face printed patterns of basement membrane 12, forms printing layer 11.Viscose is heated and melted, temperature is 50~120 DEG C, molten
Melt the one side for being coated on remote printing layer 11 in basement membrane 12 under state in calendering mode, the pressure of calendering is 5T, forms mucigel
13, and embossed is carried out to mucigel 13, the pressure of embossed is 1.5T, and rapid cooling, cooling velocity is 20 DEG C/min,
It is cooled to after room temperature, obtains in-mold labels material 10.
Prepare finished product：The in-mold labels material 10 obtained is cut to suitable size, the in-mold labels material after cutting is taken
The positioning of material 10 is positioned over the inwall of mould, the PP of melting and PE mixing material is injected in mould, PP and PE mixing material
Expansion-molded is bottle, and the temperature of the PP and PE of melting mixing material is higher, and mucigel 13 is melted into the one side in bottle,
In-mold labels material 10 combines together with bottle.Combined pressure, pressure is 2atm, is cooled to room temperature, obtains the finished product of in-mold labels.
Embodiment 4
The in-mold labels material 10 of the present embodiment, applied to in-mold labels finished product, the in-mold labels material 10 includes base
Film 12, be attached to basement membrane 12 printing layer 11 and be attached in basement membrane 12 away from printing layer 11 while mucigel
13, the thickness of printing layer 11 is 80 μm, and the thickness of basement membrane 12 is 0.5mm, and mucigel 13 is 0.2mm.
Wherein, basement membrane 12 is PET, and the viscose of mucigel 13 selects EAA and EEA mixture.
Further, the one side away from basement membrane 12 is provided with air discharge duct 14 in mucigel 13, as shown in figure 3, air discharge duct 14 is
Some grooves, groove extends from the middle part of mucigel 13 toward edge, and some grooves are linear type groove or vertical line groove, in rice word
Shape.
Further, the spacing distance of adjacent horizontal line groove or vertical line groove is 0.8cm, and the groove width of groove is 110 μm,
The depth of groove is equal to the thickness of 1 times of mucigel.
The application process of above-mentioned in-mold labels material 10, the affixed object of the present embodiment is the bottle of PET material, including following
Step：
Prepare in-mold labels material 10：One basement membrane 12 is provided, the processing of printing anti-static coating and corona are carried out to basement membrane 12
Processing, in a face printing word of basement membrane 12, forms printing layer 11.Viscose is heated and melted, temperature is 109 DEG C, in molten
The one side away from printing layer 11 in basement membrane is coated in calendering mode under state, the pressure of calendering is 1.5T, forms mucigel 13, and
Embossed is carried out to mucigel 13, the pressure of embossed is 0.8T, rapid cooling, cooling velocity is 25 DEG C/min, cooling
To room temperature, in-mold labels material 10 is obtained.
Prepare finished product：The in-mold labels material 10 obtained is cut to suitable size, the in-mold labels material after cutting is taken
Anticipate the inwall that position is positioned over mould, by the material injecting mould of the affixed object of melting, the raw material of affixed object is expansion-molded, melt
The temperature of the raw material of the affixed object melted is higher, mucigel 13 is melted in the surface of affixed object, in-mold labels material 10 is with being pasted
Thing combines together.Combined pressure, pressure is 2atm, is cooled to room temperature, obtains the finished product of in-mold labels.
Embodiment 5
The in-mold labels material 10 of the present embodiment, applied to in-mold labels finished product, the in-mold labels material 10 includes base
Film 12, be attached to basement membrane 12 printing layer 11 and be attached in basement membrane 12 away from printing layer 11 while mucigel
13, the thickness of printing layer 11 is 100 μm, and the thickness of basement membrane 12 is 1.5mm, and mucigel 13 is 0.1mm.
Wherein, basement membrane 12 is PET, and the viscose of mucigel 13 is selected from EVA and PA mixture.
Further, the one side away from basement membrane 12 is provided with air discharge duct 14 in mucigel 13, as shown in Fig. 2 air discharge duct 14 is
Some grooves, groove extends from the middle part of mucigel toward edge, and some grooves are linear type groove, in groined type.
Further, the spacing distance of adjacent horizontal line groove or vertical line groove is 1.5cm.
In some embodiments, the groove width of groove is 120 μm, and the depth of groove is equal to the thickness of 0.8 times of mucigel 13.
The application process of above-mentioned in-mold labels material 10, the affixed object of the present embodiment is the bottle of PET material, the application side
Method comprises the following steps：
Prepare in-mold labels material 10：One basement membrane 12 is provided, the processing of printing anti-static coating and corona are carried out to basement membrane 12
Processing, in a face printed patterns of basement membrane 12, forms printing layer 11.Viscose is heated and melted, temperature is 80~120 DEG C, molten
Melt the one side for being coated on remote printing layer 11 in basement membrane 12 under state in calendering mode, the pressure of calendering is 6T, forms mucigel
13, and embossed is carried out to mucigel 13, the pressure of embossed is 1.5T, and rapid cooling, cooling velocity is 30 DEG C/min,
It is cooled to after room temperature, obtains in-mold labels material 10.
Prepare finished product：The in-mold labels material 10 obtained is cut to suitable size, the in-mold labels material after cutting is taken
Anticipate the inwall that position is positioned over mould, the PET material of melting is injected in mould, expansion-molded PET material is bottle, melting
The temperature of PET material melts mucigel 13 one side in bottle, and in-mold labels material 10 combines together with bottle.Combined pressure,
Pressure is 6atm, is cooled to room temperature, obtains the finished product of in-mold labels.
The finished product of the in-mold labels of Example 1 to 5 carries out outward appearance and wearability detection, the in-mold labels of embodiment 1 to 5
Flat appearance, bubble-free and fold, scratch-resistant scrape not stamping die interior label material substantially.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of in-mold labels material, it is characterised in that including basement membrane, the printing layer for the one side for being attached to the basement membrane and attachment
The one side away from the basement membrane is provided with row in the mucigel of the one side away from the printing layer, the mucigel in the basement membrane
Air drain.
2. in-mold labels material according to claim 1, it is characterised in that the air discharge duct is some grooves, the ditch
Groove extends from the middle part of the mucigel toward edge.
3. in-mold labels material according to claim 2, it is characterised in that the groove is linear type groove, Ruo Gansuo
Channel alignment is stated in groined type or M shape.
4. the in-mold labels material according to Claims 2 or 3, it is characterised in that the groove width of the groove is 65~120 μ
M, the depth of the groove is equal to the thickness of 0.7~1 times of mucigel.
5. in-mold labels material according to claim 1, it is characterised in that the basement membrane is the mixed of PP or PE or PP and PE
Condensation material or PET or paper.
6. in-mold labels material according to claim 1, it is characterised in that the viscose of the mucigel be selected from EVA, EAA,
One or more of mixing in EEA and PA.
7. the application process of the in-mold labels material described in any one of claim 1 to 6, it is characterised in that comprise the following steps：
Prepare in-mold labels material：One basement membrane is provided, the basement membrane is surface-treated, figure is printed in the one side of the basement membrane
The combination of case or word or both, forms printing layer；Viscose is heated and melted, institute is coated in calendering mode in the molten state
The one side away from the printing layer in basement membrane is stated, mucigel is formed, and embossed is carried out to the mucigel, it is rapid to cool down,
Obtain in-mold labels material；
Prepare finished product：The in-mold labels material obtained is positioned to the inwall for being positioned over mould, by the raw material of the affixed object of melting
Inject in mould, the temperature of the raw material of the affixed object of melting melts the mucigel in the one side of the affixed object, described
In-mold labels material combines together with the affixed object；Combined pressure, cooling obtains the finished product of in-mold labels.
8. the application process of in-mold labels material according to claim 7, it is characterised in that the calendering mode coats glutinous
The temperature of glue and embossed is 50~120 DEG C, and the pressure of the calendering is 1~6T, the pressure of the embossed for 0.5~
1.5T。
9. the application process of in-mold labels material according to claim 7, it is characterised in that prepare combined pressure described in finished product
Pressure be 2~6atm.
10. the application process of in-mold labels material according to claim 7, it is characterised in that the basement membrane and the quilt
The material for pasting thing is same or like.
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| CN201710539296.8A CN107103836A (en) | 2017-07-04 | 2017-07-04 | In-mold labels material and its application process |
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| CN112026097A (en) * | 2020-09-17 | 2020-12-04 | 湖南庆泰烟花制造有限公司 | Injection mold internal labeling for firework product packaging and production process |
| CN114687218A (en) * | 2020-12-30 | 2022-07-01 | 浙江凯瑞博科技有限公司 | Environment-friendly label material |
| WO2023077254A1 (en) * | 2021-11-02 | 2023-05-11 | 杨卫力 | In-mold label |
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Application publication date: 20170829 |