CN106240101B - Paper adhesive tape, plastics compound braided bag and preparation method - Google Patents
Paper adhesive tape, plastics compound braided bag and preparation method Download PDFInfo
- Publication number
- CN106240101B CN106240101B CN201510345859.0A CN201510345859A CN106240101B CN 106240101 B CN106240101 B CN 106240101B CN 201510345859 A CN201510345859 A CN 201510345859A CN 106240101 B CN106240101 B CN 106240101B
- Authority
- CN
- China
- Prior art keywords
- layer
- adhesive tape
- barrier material
- high barrier
- bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1207—Heat-activated adhesive
- B32B2037/1215—Hot-melt adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
Abstract
The invention discloses a kind of paper adhesive tape, plastics compound braided bag and preparation methods.Paper adhesive tape the preparation method is as follows: 1. by film one side coating high barrier material, form a high barrier material layer；2. high barrier material layer is compound by bonding material layer progress with brown paper；3. applying hot melt adhesives form a hot melt adhesive layer on brown paper.Paper adhesive tape sealing effect of the invention is good, has the function that waterproof, moisture-proof, mould proof, moisture-proof, insect prevention, freshness seal；Plastics compound braided bag increases a high barrier material in structure, increase the sealing of paper adhesive tape heat bonding on edge curling seal seam envelope curve, improve barrier, sealing performance, influence first layer woven bag and inner package from infrared ray, ultraviolet light and outside air, reach fully sealed position, and be not necessarily to artificial bagging, saves human resources, production cost is reduced, is conducive to realize industrialized production.
Description
Technical field
The present invention relates to a kind of paper adhesive tape, plastics compound braided bag and preparation methods.
Background technique
Adhesive tape in the prior art only has two-layer structure, layers of kraft paper and hot melt adhesive layer, is bonded with high temperature hot pressing multiple
Woven bag is closed, makees back cover, sealing of binding is used.Then the sack of compound braided bag uses paper melt viscosity using cotton thread seam encapsulating mouth
Close adhesive tape sack seam packet cotton thread on bond, its purpose is to play the role of waterproof, it is damp proof, mould proof, make rice, coarse food grain,
Beans, grain, milk powder, food, chemical materials be fresh-keeping, long-term preservation.But compound braided bag sack stitches envelope curve by product weight in bag
Power influences seam envelope curve pin hole when widening gas leakage, due to the moisture and humidity in air, hot melt adhesive layer and layers of kraft paper it is damaged or point
It leaves, traditional adhesive tape does not have waterproof, moisture-proof, mould proof, moisture-proof, insect prevention, the effect of freshness seal.
Plastics compound braided bag in the prior art uses following three-deckers to be combined: first layer is polypropylene woven
Bag ontology, third layer are BOPP film layer, and the second layer is adhesive layer；Wherein, second layer adhesive layer is using ethylene propylene polymerization
Resin squeezes out heat pressure adhesive first layer polypropylene woven bag ontology and third layer BOPP film layer to be cast.Plastics compound braided bag
Sack sealed using cotton thread seam packet after crimping.
But due to water, the oxygen of third layer BOPP film layer and second layer adhesive layer (ethylene propylene polymerization resin is formed)
Vapor permeability is higher, is influenced by infrared ray, ultraviolet light and the air in the external world, not can be well protected first layer polypropylene woven
Bag and bag inner package, cause the packing material in bag it is easy to oxidize, agglomeration, be unable to long-term preservation, polypropylene woven bag is by infrared
The oxidation of line, ultraviolet light and the air in the external world, also aging (National Standard of the People's Republic of China-composite plastic woven bag quickly
Must not exceed 18 months in 7.4 storage rooms of bag), it generally is easy for causing to be broken in or so half a year woven bag, can not play
The effect of packaging.It adds, widens lacking for gas leakage since sack hemmed seam envelope curve is influenced seam envelope curve pin hole by article gravity in bag
It falls into, prevent plastics compound braided bag is from effective waterproof, damp proof, mould proof, insect prevention, the grains such as rice, beans and milk
The food such as powder can not long-period freshness preserving, storage, chemical materials product can not long term storage.Eventually lead to plastics compound braided bag
It can only pack and use as normal packet.
In order to protect inner package (industrial chemicals, food additives, grain, seed etc.) from oxidation, agglomeration, weathering
Deng influence, in the prior art, the plastics compound braided bag inner sleeve cylinder polythene film bag and height that above-mentioned trilaminate material is formed
On the one hand barrier film bag, still, the operation increase the cost of inner bag, on the other hand also increase cost of labor.
Therefore, develop a kind of good airproof performance, it is at low cost, save human resources, conducive to industrialized production, from infrared
It is that line, ultraviolet light and outside air influence, can be good at protecting first layer woven bag and inner package, can be used for a long time
Compound braided bag is a problem to be solved.
Summary of the invention
The present invention overcomes being in the prior art the sealing effect for realizing inner package, plastics compound braided bag is using artificial
Bagging, higher cost can not achieve industrialized production and defect that existing complex pocket wear life is not grown, provide a kind of paper
Mould adhesive tape, plastics compound braided bag and preparation method.Paper adhesive tape of the invention has good sealing effect, makes
It is effectively acted on from the moisture of air and oxygen, has the function that waterproof, moisture-proof, mould proof, moisture-proof, insect prevention, freshness seal；This hair
Bright plastics compound braided bag increases a high barrier material in structure, increases paper adhesive glue on edge curling seal seam envelope curve
Band heat bonding seals, and not only increases barrier, the sealing performance of woven bag, makes first layer woven bag and inner package from red
Outside line, ultraviolet light and outside air influence, and reach fully sealed position, and be not necessarily to artificial bagging, save human resources, drop
Low production cost is conducive to realize industrialized production.
The present invention solves above-mentioned technical problem by the following technical programs.
The present invention provides a kind of preparation methods of paper adhesive tape comprising following step:
(1) by film one side coating high barrier material, a high barrier material layer is formed；
(2) the high barrier material layer is carried out with brown paper by a bonding material layer compound；
(3) applying hot melt adhesives form a hot melt adhesive layer on the brown paper.
The structure of the paper adhesive tape is preferably as shown in figure 4, it includes film layer, high barrier material layer, bonding materials
The bed of material, brown paper, hot melt adhesive layer.
In step (1), the material of the film be it is in the art conventional, preferably Biaxially oriented polypropylene (BOPP),
Polyethylene terephthalate (PET) or polyamide (PA).
In step (1), the film with a thickness of routine in the art, preferably 12-30 μm.
In step (1), the high barrier material is preferably polyvinylidene chloride (PVDC) or polyvinyl alcohol (PVA).
In step (1), the mode of the coating can preferably be carried out in the steps below: by this field routine by film list
Pre-coating one layer of polyurethane adhesive pre- gluing in face after drying, then is coated with the height on the pre- rubberised layer of polyurethane adhesive
Barrier material, drying.The pre- gluing of polyurethane adhesive is that this field is conventional, general commercially available.The polyurethane
The pre-gelatinized coating dry measure of binder is that this field is conventional, generally 3-15 grams/m.
In step (1), the coating dry measure of the high barrier material is preferably 0.3-4 grams/m, is more preferably 0.3-
3 grams/m.
In step (2), the compound mode is preferably dry-lamination process or squeezes out curtain coating combination process.
Wherein, it when using dry-lamination process, preferably carries out in the steps below: polyurethane adhesive is applied to institute
It states on high barrier material layer, is bonded after oven drying, then through dry-lamination process with brown paper hot pressing.It is described poly-
Urethane binder is routine in the art, general commercially available.
Wherein, it when using curtain coating combination process is squeezed out, preferably carries out in the steps below: by ethylene propylene polymerization resin
Through screw rod melting extrusion, it is attached to the high barrier material layer surface, is connect with brown paper heat pressure adhesive.The extrusion
Compound technique is cast preferably to carry out using multi-layer co-extruded series connection curtain coating compounding machine.
In step (2), the brown paper is conventional brown paper in the art.
In step (2), the thickness of the bonding material layer is preferably 5-20 μm.
In step (3), the hot melt adhesive layer is routine in the art, and material is generally ethylene-vinyl acetate copolymer
(EVA).The hot melt adhesive layer is coated completion using conventional hot melt rubber coating in the art.The coating of the hot melt adhesive layer
Dry measure is preferably 25-40 grams/m.
The present invention also provides one kind paper adhesive tape as made from above-mentioned preparation method.
In the present invention, the width of the paper adhesive tape is preferably 30-120mm, is more preferably 30-70mm.
The present invention also provides a kind of preparation methods of plastics compound braided bag comprising following step:
(1) by film one side coating high barrier material, a high barrier material layer is formed；
(2) by any one progress in following two ways:
Square formula (I): it includes the following steps: the outer surface of step (1) the high barrier material layer and woven bag ontology,
With the compound heat seal connection of the resin extruded curtain coating of ethylene propylene polymerization, a bonding is respectively formed in the outer surface of the woven bag ontology
Plastics compound braided bag cylinder bag is made in material layer；
Square formula (II): it includes the following steps: to cut woven bag ontology, is overlying on step (1) the high barrier material layer
On, it is connected with the resin extruded compound heat seal of curtain coating of ethylene propylene polymerization, forms a bonding material layer, then middle seam heat seal connection, system
Obtain plastics compound braided bag cylinder bag；
(3) by plastics compound braided bag cylinder bag sack elder generation hemmed seam packet made from square formula (I) or square formula (II), seam packet is formed
Line, then the paper adhesive tape described in both-sided adhesive on the seam envelope curve.
The structure of the plastics compound braided bag is preferably as shown in Figure 1 or 2, it includes: film layer, high-barrier material
The bed of material, bonding material layer, woven bag ontology.
In step (1), the material of the film is routine in the art, preferably Biaxially oriented polypropylene (BOPP).
In step (1), the film with a thickness of routine in the art, preferably 12-30 μm.
In step (1), the coating dry measure of the high barrier material is preferably 0.3-4 grams/m, is more preferably 0.3-
3 grams/m.
In step (1), the high barrier material is preferably polyvinylidene chloride (PVDC) or polyvinyl alcohol (PVA).
In step (1), before the operation of the coating, intaglio printing preferably is carried out in the single side of the film, is formed
One printing layer is coated the high barrier material in the printing layer.The operation of the intaglio printing and condition are this field
Interior routine.
In step (1), the mode of the coating can be carried out: by film by this field routine preferably by following step
One layer of pre- gluing of polyurethane adhesive of one-sided precoat cloth, after drying, then on the pre- rubberised layer of polyurethane adhesive described in coating
High barrier material, drying.The pre- gluing of polyurethane adhesive is that this field is conventional, general commercially available.The poly- ammonia
The pre-gelatinized coating dry measure of ester binder is that this field is conventional, generally 3-15 grams/m.Preferably, in the pre-coating
Operation before, first carry out intaglio printing in the single side of the film, form a printing layer, the pre-coating again in the printing layer
One layer of pre- gluing of polyurethane adhesive.The operation of the intaglio printing and condition are in the art conventional.
In the square formula (I) of step (2) and square formula (II), the woven bag is routine in the art, preferably polypropylene
Woven bag.
In the square formula (I) of step (2) and square formula (II), the thickness of the bonding material layer is preferably 5-20 μm.
In the square formula (I) of step (2) and square formula (II), the extrusion curtain coating compound thermal closes equipment one used by connection
As for this field routine multi-layer co-extruded series connection curtain coating compounding machine, step and condition can routinely be selected by this field.Institute
It states extrusion curtain coating compound thermal and closes connection and preferably carry out in the steps below: by ethylene propylene polymerization resin through screw rod melting extrusion,
It is attached to the high barrier material layer surface, it is good with plain cloth in the outer surface of the woven bag ontology in square formula (I) or square formula (II)
Woven bag ontology heat pressure adhesive connection.
In square formula (I) and square formula (II) in step (2), preferably, in the plastics compound braided bag cylinder bag, it is described thin
Film, the high barrier material layer and the bonding material layer it is 2-8mm wider than the two sides of woven bag ontology (it is corresponding with Fig. 3 in
L), to achieve the effect that better waterproof, damp proof, sealing, barrier.
In step (3), the equipment that this field routine can be used in the seam envelope curve is carried out, and generally automatic industrial is sewed
Machine.
In step (3), the crimping is this field routine operation, the purpose is to for it is better avoid breathing freely, oxygen flow, one
As for crimping 1,2 enclose.
It, preferably can also be to the plastics compound braided bag cylinder bag before the operation of the hemmed seam packet in step (3)
It is sheared.The step of described shearing and condition can be selected according to the routine of this field.The plastics formed after shearing are multiple
The size criteria for closing woven bag cylinder bag can refer to GB/T8946-2012.
In step (3), preferably, the seam envelope curve is away from plastics compound braided bag cylinder bag bottom edge 15mm-20mm (phase
Corresponding to the D1 in Fig. 1, Fig. 2).Plastics compound braided bag cylinder bag bottom edge refers to that distance seam envelope curve is relatively in cylinder bag both ends
Close one end.In general, the seam envelope curve should be wrapped completely through volume.
In step (3), after the bonding, to guarantee sealing effect, preferably, the seam envelope curve is away from the paper adhesive glue
The top edge of band is 10mm-15mm (relative to the D3 in Fig. 1, Fig. 2).
In step (3), after the bonding, to guarantee sealing effect, preferably, the paper adhesive tape is in the modeling
The left and right sides for expecting compound braided bag, the edge that should cover the plastics compound braided bag volume packet (correspond in Fig. 1, Fig. 2
Zero) D2 should be greater than.
In step (3), the bonding preferably carries out in the following manner: hot melt adhesive adhesive tape sealing machine is used, by the paper
Adhesive tape both-sided adhesive is moulded on the seam envelope curve, is more preferably carried out in the following manner: the paper adhesive tape is used into V
Type is bonded on the seam envelope curve.Wherein, the hot melt adhesive adhesive tape sealing machine is in the art conventional.Preferably, the V-type
For the identical symmetrical V-type of the right and left length.
In step (3), the temperature of the bonding is preferably 100-200 DEG C.
The present invention also provides one kind high-barrier Polywoven Bag as made from above-mentioned preparation method.
In the present invention, if not illustrating, the mechanical equipment employed in preparation process is that the routine of this field is set
Standby, operating procedure and condition can be selected according to the routine of this field.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The positive effect of the present invention is that:
1, paper adhesive tape of the invention increases film layer, high-barrier on the basis of prior art two-layer structure
Bonding material layer and bonding material layer make it have good sealing effect, effectively act on from the moisture of air and oxygen, from
And have the function that waterproof, moisture-proof, mould proof, moisture-proof, insect prevention, freshness seal.
2, plastics compound braided bag of the invention increases a layer high-barrier material in structure, stitches envelope curve in edge curling seal
Upper increase paper adhesive tape heat bonding sealing, improves barrier, the sealing performance of woven bag, reaches fully sealed position,
OTR oxygen transmission rate is 0.5-1cm3/(m20.1MPa for 24 hours), the low 1500-3000 of paper-plastic stick woven bag than in the prior art
(paper-plastic stick woven bag oxygen transmission rate in the prior art is about 1500cm again3/(m20.1MPa for 24 hours)), compare the prior art
In plastic, transparent nylon/polyethylene composite rice bag (plastic, transparent nylon in the prior art/polyethylene composite rice bag
Oxygen transmission rate 30-50cm3/(m20.1MPa for 24 hours), only 12 months shelf-life), so that it being capable of effective waterproof, anti-
Wet, mould proof, insect prevention.For the packing material in bag, oxidation, the agglomeration of the packing material in bag are avoided, to long-period freshness preserving, is saved
Play good shielding and protective effect, hence it is evident that the storage time for improving bag inner package makes its long shelf-life up to 2-3；Example
It waterproof, damp proof, mould proof, insect prevention, the food such as the grains such as rice, beans and milk powder can effectively can such as protect for a long time
Fresh, storage, chemical materials product also can long term storage.Meanwhile preventing internal layer woven bag by infrared ray, ultraviolet light and the sky in the external world
Gas oxidation, avoids aging phenomenon, improves the quality of compound braided bag and uses the time.
In addition, plastics compound braided bag of the invention eliminates artificial bagging in the prior art, product quality is improved, is saved
About human and material resources costs are conducive to industrialized production.
Detailed description of the invention
Fig. 1 is the plastics compound braided bag structural schematic diagram of embodiment 1.
Fig. 2 is the plastics compound braided bag structural schematic diagram of embodiment 2.
Fig. 3 is another status architecture schematic diagram of the plastics compound braided bag of embodiment 1.
Fig. 4 is paper adhesive tape structural schematic diagram in Fig. 1 and Fig. 2.
Fig. 5 is the process flow chart of paper adhesive tape, plastics compound braided bag in embodiment 1.
Description of symbols:
1: compound braided bag
2: woven bag ontology
3: bonding material layer
4: high barrier material layer
5: film layer
6: seam envelope curve
7: paper adhesive tape
71: the second film layers
72: the second high barrier material layers
73: the second bonding material layers
74: layers of kraft paper
75: hot melt adhesive layer
D1: the first length
D2: the second length
D3: third length
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.In the following examples, the experimental methods for specific conditions are not specified, according to conventional methods and conditions, or according to quotient
The selection of product specification.
Embodiment 1
1, the structural schematic diagram of plastics compound braided bag of the present invention, paper adhesive tape:
Fig. 1 is the plastics compound braided bag structural schematic diagram of embodiment 1, and Fig. 3 is the plastics compound braided bag of embodiment 1
Another status architecture schematic diagram.Understood incorporated by reference to Fig. 1, Fig. 3, compound braided bag 1 is four layers of composite construction, and described compound
Woven bag 1 includes woven bag ontology 2, bonding material layer 3, high barrier material layer 4 and film layer 5.Wherein, the woven bag ontology
2 are used for contain things；The bonding material layer 3 is coated on 2 outer surface of woven bag ontology；The high barrier material layer 4 wraps
3 outer surface of bonding material layer is overlayed on, the high barrier material layer 4 enters the braiding for obstructing outside moisture and oxygen
In bag ontology 2 and obstruct the leakage of the gas in the woven bag ontology 2；The film layer 5 is coated on the high barrier material layer 4
Outer surface.
In the present embodiment, the woven bag ontology 2 is the cylindric polypropylene woven bag of upper and lower end opening, described
The material of bonding material layer 3 is ethylene propylene polymerization resin, and the material of the film layer 5 is Biaxially oriented polypropylene (BOPP),
BOPP is existing material in the prior art, and the material of the ethylene propylene polymerization resin and the film layer 5 is that woven bag is normal
With material, materials are simple, at low cost.
In the present embodiment, the material of the high barrier material layer 4 is PVDC or PVA.Wherein, PVDC is
The abbreviation of Polyvinyl Dichloride, i.e. PVDC are the abbreviation of polyvinylidene chloride；PVA is Polyvinyl Alcohol
Abbreviation, i.e. PVA be polyvinyl alcohol abbreviation.PVDC, PVA are that existing material, these materials all have excellent in the prior art
The barrier property of the compound braided bag 1 can be improved in good barrier property.
In the present embodiment, the high barrier material layer 4 and the coated formation high-isolation film layer of the film layer 5,
By the high barrier material of the high barrier material layer 4, high temperature is coated in the film layer 5 on coating machine, coated formation institute
High-isolation film layer is stated, while greatling improve barrier property, packing cost is lower.
In the present embodiment, poly- using ethylene, propylene between the woven bag ontology 2 and the high barrier material layer 4
Resin squeezes out curtain coating compound thermal and closes connection, forms a bonding material layer 3.The heat seal is connected as commonly using connection in packing technique
Mode, easy to operate, connection is reliable.
In the present embodiment, being partially folded to form close to sack in the woven bag ontology 2 and the film layer 5
One edge curling seal portion, the edge curling seal portion are sutured by seam envelope curve 6, and the compound braided bag 1 further includes that an at least paper is viscous
Adhesive tape 7 is closed, described in at least one paper adhesive tape 7 bonding is connected in the seam envelope curve 6 and the film layer 5 and has seamed
At the position for stitching envelope curve 6.
Fig. 4 is paper adhesive tape structural schematic diagram in Fig. 1 and Fig. 2.As shown in figure 4, in the present embodiment, the paper
Adhesive tape 7 is moulded by being made of high barrier material, and the paper adhesive tape 7 includes that one second film layer 71, second is high
Spacer material layer 72, the second bonding material layer 73, layers of kraft paper 74 and the hot melt adhesive layer 75 for being coated on the layers of kraft paper 74, institute
It states the second high barrier material layer 72 and is coated on second film layer 71, second bonding material layer 73 is set to described second
Between high-obstruction 72 and the layers of kraft paper 74, and lead between the second high barrier material layer 72 and the layers of kraft paper 74
73 heat seal of the second bonding material layer connection is crossed, the paper adhesive tape 7 uses high barrier material, improves the paper
Mould the barrier and sealing performance of adhesive tape 7.
In the present embodiment, the quantity of the paper adhesive tape 7 is two, and two paper adhesive tapes 7
It being bonded at the position for being equipped with the seam envelope curve 6 in the film layer 5 respectively, two paper adhesive tapes 7 are symmetrical,
Under the premise of meeting barrier property, the material utilization amount of the paper adhesive tape 7 is not only saved, but also more beautiful.
It can be improved waterproof, the damp proof, obstruction seals of compound braided bag using the paper adhesive tape 7 of above-mentioned five-layer structure
Performance makes milk powder, food additives, chemical materials product packaging achieve the effect that leakproof, damp proof, waterproof, oxygen obstruction are fresh-keeping,
To improve the storage life of product, thus realize make milk powder, food, chemical materials product reach waterproof, damp proof, mould proof agglomeration,
Insect prevention, long-term preservation, fresh-keeping function.
2, the preparation method of the present embodiment paper adhesive tape:
(1) by high barrier material described in film one side coating, a high barrier material layer is formed；Wherein, the material of film
BOPP, PET or PA；Film with a thickness of 12-30 μm；High barrier material is PVDC or PVA；The coating dry measure of high barrier material is
0.3-4 grams/m；
(2) the high barrier material layer is carried out with brown paper by a bonding material layer compound；The bonding material layer
With a thickness of 5-20 μm；The compound mode is dry-lamination process or extrusion curtain coating combination process；
When using dry-lamination process, carries out in the steps below: polyurethane adhesive is applied to the high-barrier material
On the bed of material, it is bonded after oven drying, then through dry-lamination process with brown paper hot pressing；
When using curtain coating combination process is squeezed out, carries out in the steps below: ethylene propylene polymerization resin is melted through screw rod
It squeezes out, is attached to the high barrier material layer surface, is connect with brown paper heat pressure adhesive；Curtain coating combination process is squeezed out to adopt
It is carried out with multi-layer co-extruded series connection curtain coating compounding machine；
(3) applying hot melt adhesives form a hot melt adhesive layer on the brown paper, the width of paper adhesive tape is preferable
Ground is 30-120mm, is more preferably 30-70mm；Wherein, the material of hot melt adhesive layer be EVA, using conventional hot melt rubber coating into
Row coating is completed, and the coating dry measure of hot melt adhesive layer is preferably 25-40 grams/m.
3, the preparation method of the present embodiment plastics compound braided bag:
(1) by film coated high barrier material, a high barrier material layer is formed；Wherein, film with a thickness of 12-30 μm；
The coating dry measure of high barrier material is 0.3-4 grams/m；
(2) by any one progress in following two ways:
Square formula (I): it includes the following steps: the outer surface of step (1) the high barrier material layer and woven bag ontology,
With the compound heat seal connection of the resin extruded curtain coating of ethylene propylene polymerization, a bonding is respectively formed in the outer surface of the woven bag ontology
Plastics compound braided bag cylinder bag is made in material layer；Wherein, woven bag is polypropylene woven bag；Bonding material layer with a thickness of 5-
20μm；
Square formula (II): it includes the following steps: to cut woven bag ontology, is overlying on step (1) the high barrier material layer
On, it is connected with the resin extruded compound heat seal of curtain coating of ethylene propylene polymerization, forms a bonding material layer, then middle seam heat seal connection, system
Obtain plastics compound braided bag cylinder bag；Wherein, woven bag is polypropylene woven bag；Bonding material layer with a thickness of 5-20 μm；
(3) by plastics compound braided bag cylinder bag sack elder generation hemmed seam packet made from square formula (I) or square formula (II), seam packet is formed
Line, then on the seam envelope curve, using hot melt adhesive adhesive tape sealing machine, by paper adhesive tape both-sided adhesive in the seam envelope curve
On.
Wherein, seam envelope curve is away from plastics compound braided bag cylinder bag bottom edge 15mm-20mm (corresponding to the D1 in Fig. 1)；It is described
The temperature of bonding is preferably 100-200 DEG C；After bonding, in the plastics compound braided bag, the film layer, the high-barrier
Material layer and the bonding material layer are 2-8mm wider than the two sides of woven bag ontology (the corresponding L with Fig. 3)；To guarantee sealing
Effect, in the left and right sides of the plastics compound braided bag, it is composite braided that the paper adhesive tape should cover the plastics
The edge of bag volume packet (D2 corresponded in Fig. 1, Fig. 2 should be greater than zero)；The seam envelope curve is away from the upper of the paper adhesive tape
Edge is 10mm-15mm (corresponding to the D3 in Fig. 1, Fig. 2).
Fig. 5 is the process flow chart of paper adhesive tape, plastics compound braided bag in embodiment 1.
Embodiment 2
The present embodiment and 1 structure of embodiment are essentially identical, the difference is that only the paper adhesive tape 7 using V-type
It is bonded on the seam envelope curve.Fig. 2 is the plastics compound braided bag structural schematic diagram of embodiment 2.
In the present embodiment, the paper adhesive tape 7 is V-type adhesive tape, and the V-type adhesive tape is coated on institute
It states and is equipped in film layer 5 at the position of the seam envelope curve 6, it, only need to be in the V-type using V-type adhesive tape compared to embodiment 1
The both ends corresponding position of adhesive tape carries out bonding connection, and operation is simpler, and barrier and better tightness.
Effect example 1
In the prior art, plastic, transparent rice for bag (PA and PE composite structure) vacuumizes preservation 12 months, oxygen transmission rate
In 30-50cm3/(m2·24h·0.1MPa)；And plastics compound braided bag of the invention is in three layers of material of existing compound braided bag
Increase in material structure high barrier material layer, by special paper adhesive tape (increase BOPP PET PA film and high-barrier
Material), make oxygen transmission rate in 0.5-1cm3/(m20.1MPa for 24 hours), than the oxygen transmission rate of the plastic, transparent rice for bag of the prior art
It low 30-100 times, is fully able to be sealed 2-3.
The oxygen transmission rate of paper-plastic stick woven bag is in 1500cm3/(m20.1MPa for 24 hours) or so, plastics of the invention are compound
Woven bag is 1500-3000 times lower than its oxygen transmission rate.
As it can be seen that paper-plastic stick woven bag of the invention improves barrier, sealing performance, to improve the guarantor of product in bag
The phase is deposited, grain, milk powder, food, chemical materials product waterproof, damp proof, mould proof, insect prevention, long term storage, fresh-keeping can be made by reaching
Effect.
Claims (21)
1. a kind of preparation method of paper adhesive tape comprising following step:
(1) by film one side coating high barrier material, a high barrier material layer is formed；
(2) the high barrier material layer is carried out with brown paper by a bonding material layer compound；
(3) applying hot melt adhesives form a hot melt adhesive layer on the brown paper；
In step (1), the material of the film is Biaxially oriented polypropylene, polyethylene terephthalate or polyamide；
In step (1), the high barrier material is polyvinylidene chloride or polyvinyl alcohol.
2. the preparation method of paper adhesive tape as described in claim 1, which is characterized in that
The structure of the paper adhesive tape includes: film layer, high barrier material layer, bonding material layer, brown paper, hot melt adhesive
Layer；
And/or in step (1), the film with a thickness of 12-30 μm；
And/or in step (1), the mode of the coating carries out in the steps below: by one layer of viscoelastic polyurethane of film one-sided precoat cloth
The pre- gluing of agent is tied, after drying, then is coated with the high barrier material on the pre- rubberised layer of polyurethane adhesive, drying；
And/or in step (1), the coating dry measure of the high barrier material is 0.3-4 grams/m.
3. the preparation method of paper adhesive tape as claimed in claim 2, which is characterized in that in step (1), the high-barrier
The coating dry measure of material is 0.3-3 grams/m.
4. the preparation method of paper adhesive tape as described in claim 1, which is characterized in that described compound in step (2)
Mode is dry-lamination process or extrusion curtain coating combination process；
And/or in step (2), the bonding material layer with a thickness of 5-20 μm；
And/or in step (3), the coating dry measure of the hot melt adhesive layer is 25-40 grams/m.
5. the preparation method of paper adhesive tape as claimed in claim 4, which is characterized in that when using dry-lamination process
When, it carries out in the steps below: polyurethane adhesive being applied on the high barrier material layer, after oven drying, then is passed through
Dry-lamination process is bonded with brown paper hot pressing.
6. the preparation method of paper adhesive tape as claimed in claim 4, which is characterized in that when using the compound work of extrusion curtain coating
When skill, carries out in the steps below: by ethylene propylene polymerization resin through screw rod melting extrusion, being attached to the high barrier material layer table
Face is connect with brown paper heat pressure adhesive.
7. the preparation method of paper adhesive tape as claimed in claim 6, which is characterized in that the extrusion is cast combination process
It is carried out using multi-layer co-extruded series connection curtain coating compounding machine.
8. paper adhesive tape made from a kind of preparation method such as the described in any item paper adhesive tapes of claim 1-7.
9. paper adhesive tape as claimed in claim 8, which is characterized in that the width of the paper adhesive tape is 30-
120mm。
10. paper adhesive tape as claimed in claim 9, which is characterized in that the width of the paper adhesive tape is 30-
70mm。
11. a kind of preparation method of plastics compound braided bag, which is characterized in that it includes the following steps:
(1) by film one side coating high barrier material, a high barrier material layer is formed；
(2) by any one progress in following two ways:
Square formula (I): it includes the following steps: the outer surface of step (1) the high barrier material layer and woven bag ontology using second
Allyl alkene polymer resin squeezes out curtain coating compound thermal and closes connection, is respectively formed a jointing material in the outer surface of the woven bag ontology
Plastics compound braided bag cylinder bag is made in layer；
Square formula (II): it includes the following steps: to cut woven bag ontology, is overlying on step (1) the high barrier material layer, uses
The compound heat seal connection of the resin extruded curtain coating of ethylene propylene polymerization forms a bonding material layer, then middle seam heat seal connection, plastics is made
Compound braided bag cylinder bag；
(3) by plastics compound braided bag cylinder bag sack elder generation hemmed seam packet made from square formula (I) or square formula (II), seam envelope curve is formed,
The both-sided adhesive paper adhesive tape as claimed in claim 8 on the seam envelope curve again.
12. the preparation method of plastics compound braided bag as claimed in claim 11, which is characterized in that
The structure of the plastics compound braided bag includes: film layer, high barrier material layer, bonding material layer, woven bag ontology；
And/or in step (1), the material of the film is Biaxially oriented polypropylene；
And/or in step (1), the film with a thickness of 12-30 μm；
And/or in step (1), the coating dry measure of the high barrier material is 0.3-4 grams/m；
And/or in step (1), the high barrier material is polyvinylidene chloride or polyvinyl alcohol；
And/or in step (1), before the operation of the coating, intaglio printing is carried out in the single side of the film, forms a print
Brush layer is coated the high barrier material in the printing layer.
13. the preparation method of plastics compound braided bag as claimed in claim 12, which is characterized in that in step (1), the height
The coating dry measure of barrier material is 0.3-3 grams/m.
14. the preparation method of plastics compound braided bag as claimed in claim 11, which is characterized in that in step (1), the painting
The mode of cloth is carried out by following step: by one layer of pre- gluing of polyurethane adhesive of film one-sided precoat cloth, after drying, then poly-
The high barrier material, drying are coated on the pre- rubberised layer of urethane binder.
15. the preparation method of plastics compound braided bag as claimed in claim 14, which is characterized in that in the behaviour of the pre-coating
Before work, intaglio printing is first carried out in the single side of the film, forms a printing layer, one layer of pre-coating again in the printing layer
The pre- gluing of polyurethane adhesive.
16. the preparation method of plastics compound braided bag as claimed in claim 11, which is characterized in that the square formula (I) of step (2)
In square formula (II), the woven bag ontology is polypropylene woven bag；
And/or in the square formula (I) of step (2) and square formula (II), the bonding material layer with a thickness of 5-20 μm；
And/or in the square formula (I) of step (2) and square formula (II), the extrusions curtain coating compound thermal close connect in the steps below into
Row: by ethylene propylene polymerization resin through screw rod melting extrusion, it is attached to the high barrier material layer surface, in square formula (I)
Well laid woven bag ontology heat pressure adhesive connection is put down in the outer surface of woven bag ontology or square formula (II)；
And/or in the square formula (I) in step (2) and square formula (II), in the plastics compound braided bag cylinder bag, the film, institute
It states high barrier material layer and the bonding material layer is 2-8mm wider than the two sides of woven bag ontology.
17. the preparation method of plastics compound braided bag as claimed in claim 11, which is characterized in that, will be described in step (3)
Hemmed seam packet operation before, also the plastics compound braided bag cylinder bag is sheared；
And/or in step (3), the seam envelope curve is away from the plastics compound braided bag cylinder bag bottom edge 15mm-20mm；
And/or in step (3), after the bonding, to guarantee sealing effect, the seam envelope curve is away from the paper adhesive tape
Top edge is 10mm-15mm；
And/or in step (3), after the bonding, the paper adhesive tape is in the left and right two of the plastics compound braided bag
Side should cover the edge of the plastics compound braided bag volume packet.
18. the preparation method of plastics compound braided bag as claimed in claim 11, which is characterized in that described viscous in step (3)
It closes and carries out in the following manner: hot melt adhesive adhesive tape sealing machine is used, by the paper adhesive tape both-sided adhesive in the seam envelope curve
On；
And/or in step (3), the temperature of the bonding is 100-200 DEG C.
19. the preparation method of plastics compound braided bag as claimed in claim 18, which is characterized in that by the paper adhesive glue
Band both-sided adhesive is in progress in the following manner on the seam envelope curve: the paper adhesive tape is bonded in the seam using V-type
On envelope curve.
20. the preparation method of plastics compound braided bag as claimed in claim 19, which is characterized in that the V-type is left and right
The identical symmetrical V-type of two edge lengths.
21. high-barrier made from a kind of preparation method such as the described in any item plastics compound braided bags of claim 11-20 is moulded
Expect compound braided bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345859.0A CN106240101B (en) | 2015-06-19 | 2015-06-19 | Paper adhesive tape, plastics compound braided bag and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345859.0A CN106240101B (en) | 2015-06-19 | 2015-06-19 | Paper adhesive tape, plastics compound braided bag and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106240101A CN106240101A (en) | 2016-12-21 |
| CN106240101B true CN106240101B (en) | 2019-01-22 |
Family
ID=57626297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510345859.0A Expired - Fee Related CN106240101B (en) | 2015-06-19 | 2015-06-19 | Paper adhesive tape, plastics compound braided bag and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106240101B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453169B (en) * | 2020-04-14 | 2022-02-08 | 天长市天粤塑胶有限公司 | High resistant separates braided bag |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4188442A (en) * | 1976-12-28 | 1980-02-12 | Toyo Kagaku Kabushiki Kaisha | Adhesive tape |
| GB0806731D0 (en) * | 2008-04-14 | 2008-05-14 | Proctor Group Ltd A | Adhesive membrane |
| US20150240133A1 (en) * | 2012-10-29 | 2015-08-27 | Lintec Corporation | Adhesive agent composition and adhesive sheet |
| CN203727847U (en) * | 2013-11-22 | 2014-07-23 | 石河子佳美包装工贸有限公司 | Anti-seepage paper-plastic composite woven bag |
-
2015
- 2015-06-19 CN CN201510345859.0A patent/CN106240101B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106240101A (en) | 2016-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106256706B (en) | Paper-plastic stick woven bag and its production technology | |
| CN205416629U (en) | Multilayer is crowded heavily wrapping bag of separation type altogether | |
| CN102380983A (en) | Easy-to-peel cover film | |
| CN202862730U (en) | Multi-layer high-barrier co-extruded heat-shrinkable film | |
| CN106240101B (en) | Paper adhesive tape, plastics compound braided bag and preparation method | |
| CN205837483U (en) | A kind of woven bag | |
| CN204979603U (en) | Composite braided bag | |
| CN107010311A (en) | A kind of plastics high-barrier compound braided bag and preparation method | |
| CN203937991U (en) | A kind of high barrier aluminum-plating composite film | |
| CN206231802U (en) | Compound braided bag | |
| CN203186750U (en) | Air adjusting type packaging bag | |
| CN205467737U (en) | Automatic complex film is torn to highly resistance for packagine machine | |
| CN206394126U (en) | A kind of low absorption composite sheet for product packaging | |
| CN204750876U (en) | Composite braided bag | |
| CN201942109U (en) | Easily-torn cover film | |
| CN203158412U (en) | Damp-proof compound woven bag | |
| CN104477509B (en) | A kind of black and white preservative film composite packaging | |
| CN204558549U (en) | A kind of explosion-proof lithium battery aluminum plastic film | |
| CN204936400U (en) | Adhesive tape | |
| CN209275244U (en) | It easily tears, controlled atmospheric packing film | |
| CN207956471U (en) | A kind of color printing woven bag easy to use | |
| CN201777487U (en) | Valve port paper bag with double plastic membranes | |
| CN106739340B (en) | A kind of packaging film that do not rolled up after high-barrier high temperature resistant sterilizing | |
| CN205674635U (en) | The easy-tear type composite covering film that a kind of ectonexine is the most heat sealable | |
| CN204506033U (en) | Multi-layer compound film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20210619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |