CN107160749A - A kind of colored ventilated membrane and its production technology and application - Google Patents
A kind of colored ventilated membrane and its production technology and application Download PDFInfo
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- CN107160749A CN107160749A CN201710421732.1A CN201710421732A CN107160749A CN 107160749 A CN107160749 A CN 107160749A CN 201710421732 A CN201710421732 A CN 201710421732A CN 107160749 A CN107160749 A CN 107160749A
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- colored
- ventilated membrane
- ventilative
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- 239000012528 membrane Substances 0.000 title claims abstract description 94
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 title claims abstract description 16
- 239000004595 color masterbatch Substances 0.000 claims abstract description 62
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000003851 corona treatment Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000007493 shaping process Methods 0.000 claims abstract description 7
- 230000004927 fusion Effects 0.000 claims abstract description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 44
- 239000002245 particle Substances 0.000 claims description 33
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 15
- 238000005266 casting Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 230000002745 absorbent Effects 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 238000010348 incorporation Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000009490 roller compaction Methods 0.000 claims description 3
- 238000007766 curtain coating Methods 0.000 claims description 2
- 238000010892 electric spark Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 238000005453 pelletization Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 95
- 239000004594 Masterbatch (MB) Substances 0.000 description 16
- 238000012360 testing method Methods 0.000 description 15
- 238000001514 detection method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 3
- 238000009738 saturating Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000009998 heat setting Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000289 melt material Substances 0.000 description 2
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- 239000000654 additive Substances 0.000 description 1
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- 238000001053 micromoulding Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
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- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
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- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a kind of colored ventilated membrane and its production technology and application, colored ventilated membrane is formed by three-layer co-extruded, wherein the first ventilative film layer accounts for colored ventilated membrane weight 10%~30%, this layer of component C aCO3, color masterbatch, PE quality parts ratio be respectively 20%~40%, 5%~20%, 40%~75%；Second ventilative film layer accounts for colored ventilated membrane weight 40%~80%, this layer of component C aCO3, PE quality parts ratio 40%~60%, 40%~60%）；3rd ventilative film layer accounts for CaCO in colored ventilated membrane weight 10%~30%, this layer3, color masterbatch, PE quality parts ratio be respectively 20%~40%, 5%~20%, 40%~75%.The colored ventilated membrane is mixed through dispensing, extruding pelletization, removal moisture drying, fusion plastification, three-layer co-extruded, preheating, three-level stretching, thermal finalization, cooling and shaping, sided corona treatment be made.The present invention can maintain relatively good bright-colored degree in the case where reducing color masterbatch usage amount so that ventilated membrane Air permenbility will not cause Air permenbility is relatively low can not meet use requirement because substantial amounts of color masterbatch is added.
Description
Technical field
The present invention relates to plastic foil production technical field, more particularly to a kind of colored ventilated membrane and its production technology.
Background technology
Colored ventilated membrane have can pass through vapor and can not be permeable performance, be widely used in sanitary napkin, paper diaper,
The industries such as warm patch, raincoat, various applications propose different requirements to the performance of colored ventilated membrane.
According to statistics, the sanitary napkin of China in 2014 and the market scale of paper diaper are up to 30,000,000,000, with paper diaper and health
The development of the disposable sanitary articles such as towel, for the demand with the colored ventilated membrane of different colours also in increase.But domestic tool
The producer of the standby colored ventilated membrane production capacity of production is few, is usually to add color masterbatch when film and use individual layer to squeeze
The technique gone out.And during individual layer extrusion, because the ventilative film master batch of colour contains more than 50% CaCO3, and passed through during colored ventilated membrane production
Overstretching color can shoal, then in order to realize the vividness of a certain degree of color, it is necessary to add substantial amounts of color masterbatch, on the one hand
The addition of a large amount of color masterbatch can cause ventilated membrane cost to steeply rise, and on the other hand ventilated membrane Air permenbility can be caused drastically to decline, and limit
The market application of colored ventilated membrane is made.
The content of the invention
The purpose of the present invention is needed to add substantial amounts of Masterbatch and coloured less uniform for individual layer extruding technology
There is provided the colored ventilated membrane that a kind of color masterbatch is relatively low, color is uniform and Air permenbility is controllable and its production technology for phenomenon.
To achieve the above object, the present invention is achieved through the following technical solutions, and described colored ventilated membrane is from top to bottom
It is composited respectively by the three-layer co-extruded first ventilative film layer, the second ventilative film layer and the 3rd ventilative film layer, wherein：
1）By mass percentage, the described first ventilative film layer accounts for the 10%~30% of colored ventilative film quality, and described second breathes freely
Film layer accounts for the 40%~80% of colored ventilative film quality, and the described 3rd ventilative film layer accounts for the 10%~30% of colored ventilative film quality；
2）By the percentages for film quality of being breathed freely relative to each layer, the component and content of the described first ventilative film layer are：
Heavy CaCO3For 20%~40%, the first color masterbatch is that 5%~20%, PE is 40%~75%；The component of described second ventilative film layer and contain
Measure and be：Heavy CaCO3It is 40%~60% for 40%~60%, PE；The component and content of described 3rd ventilative film layer be：Heavy CaCO3
For 20%~40%, the second color masterbatch is that 5%~20%, PE is 40%~75%.
Preferably be evenly distributed with nanometer micropore on the colored ventilated membrane as further, the nanometer micropore by
The top layer of first ventilative film layer downward through the 3rd ventilative film layer bottom and connect up and down, the aperture of the nanometer micropore is
0.01~10 μm.
As further preferably, first color masterbatch is homochromy colored color masterbatch or heterochromatic colored color with the second color masterbatch
Mother, in some embodiments, the first color masterbatch are homochromy colored color masterbatch with the second color masterbatch, but in other embodiments,
First color masterbatch is heterochromatic colored color masterbatch with the second color masterbatch.
The present invention also provides a kind of production technology of foregoing colored ventilated membrane, comprises the following steps：
Step 1：By heavy CaCO3, the first color masterbatch, the second color masterbatch, PE carry out spatter property, MFR, purity and moisture respectively
Examine, then by mass percentage, by 20%~40% heavy CaCO3, 5%~20% the first color masterbatch, 40%~75% PE
Dispensing is carried out, and stirs mixing, the first compound is obtained；By 40%~60% heavy CaCO3, 40%~60% PE matched somebody with somebody
Material, and mixing is stirred, obtain the second compound；By 20%~40% heavy CaCO3, 5%~20% the second color masterbatch, 40%~75%
PE carry out dispensing, be equally stirred mixing, the 3rd compound of acquisition.
In this step, each raw material mixed weight is less than or equal to 100 kilograms, and stirring incorporation time is 15~20 minutes；
Step 2：The first compound, the second compound and the 3rd compound that step 1 is mixed are delivered to three double spiral shells respectively
In bar comminutor, it is colored that heated melting extrusion can obtain the first colored ventilative particle, the ventilative particle of the second white and the 3rd respectively
Ventilative particle.
Step 3：The first colored ventilative particle, the ventilative particle of the second white and the 3rd colored ventilative grain that step 2 is made
Son is respectively placed in dehumidifying heat pump and carries out removal moisture drying, and drying temperature is set as 75~100 DEG C, and drying time is 2~4h.
Step 4：By the made from step 3 first colored ventilative particle, the ventilative particle of the second white and the 3rd colored ventilative grain
Son is delivered into three screw extruder feeding buckets respectively, and the temperature setting of screw extruder melts modeling according to from screw extruder
Change to connecting tube insulation, then the extrusion flow being cast to die head is successively incremented by, measuring pump controls the flow of plastic molten melt feed liquid, makes
Plastic molten melt material converges at die head through ABA type distributor and full of whole die cavity, finally passes through three layers in die head exit
Coextrusion casting is obtained respectively obtained by the first colored ventilative particle, the ventilative particle of the second white and the 3rd colored ventilative pellet melting
The first colored melt, the three-layer co-extruded melt of the second white melt and the 3rd colored melt composition.
In this step, the temperature of screw extruder is set as 200~260 DEG C, and the temperature of connecting tube is set as 230~240
DEG C, die temperature is 230~250 DEG C.
Step 5：Use casting roller, rubber roller by the three-layer co-extruded melt roller-compaction of step 4 for film base material, meanwhile,
Casting roller and rubber roller are cooled down to film base material, delustring processing.The temperature of the casting roller and rubber roller is set as 20
~30 DEG C, the mutual thrust between casting roller and rubber roller is 4~6Kg/cm2。
Step 6：Film base material is preheated by pre- hot-rolling, hot heating-up temperature is 70~90 DEG C, then passes through film base material
Three-level stretches to form nanometer level microporous, obtains colored ventilated membrane.
Stretch to be formed in nanometer level microporous technique in the three-level of this step, including first order draft temperature is 80~90
DEG C, this grade stretching stretches film base material the micropore to form 10~100nm；Second level draft temperature is 90~100 DEG C, level stretching
By the further reaming of micropore size on film base material to 0.01~10 μm；Third level draft temperature is 90~100 DEG C, forms uniform
It is distributed in the nanometer level microporous of film base material.
Step 7：Colored ventilated membrane carries out thermal finalization processing after three-level is stretched, and described thermal finalization treatment temperature is
105~120 DEG C.
Step 8：Chill roll carries out cooling and shaping to completing the colored ventilated membrane after stretching process, described cooling and shaping
Temperature is 25~35 DEG C.
Step 9：The colored ventilated membrane of carry-over pinch rolls winding finished product, the colored ventilated membrane rim charge of excision, and simultaneously to colored ventilated membrane
Parameter detected.
Step 10：The colored ventilated membrane volume of finished product is cut, packed, is put in storage.
In a particular embodiment, sided corona treatment technique is additionally provided between described step 8 and step 9, the process
To carry out sided corona treatment to film surface by Corona roller, Corona roller is rolled in film surface, and is simultaneously emitted by 10,000 volts of electricity
Spark makes film surface formation galvanic corrosion embossing corona, and the film surface corona after processing reaches 36~42Dines/cm.
The present invention also provides described colored ventilated membrane answering in disposable absorbent article, packing articles and raincoat
With.Wherein, the disposable absorbent article includes opaque liquid bottom, and the opaque liquid bottom is ventilative using double color
Film, as further embodiment, opaque liquid bottom also includes non-woven cloth, and the opaque liquid bottom is by including coloured silk
Color ventilated membrane is composited with non-woven cloth.
The beneficial effect that the present invention is realized：The present invention is by using three-layer co-extruded casting technology, in first layer and third layer
Add color masterbatch and only add CaCO in the second layer3, using twin-screw dispersion mixing reduction color masterbatch usage amount feelings
The uniformity of film color is improved under condition；Micro molding and distribution are controlled by multistage stretching technology, it is determined that most preferably
Heat setting temperature and heat-setting time, so as to reduce colored ventilated membrane percent thermal shrinkage, facilitate following process.The present invention is in reduction color
In the case of female usage amount, relatively good bright-colored degree can be maintained so that ventilated membrane Air permenbility will not be a large amount of because of addition
Color masterbatch and cause Air permenbility is relatively low can not meet use requirement.
Brief description of the drawings
Fig. 1 is the cross-sectional structure schematic diagram of colored ventilated membrane.
Fig. 2 is the production technological process of the colored ventilated membrane of the present invention.
Embodiment
Term " colored color masterbatch ", refers to the coloured color masterbatch in addition to black color masterbatch and is referred to as colored color masterbatch.
First color masterbatch of the present invention is in some embodiments homochromy colored color masterbatch, but another with the second color masterbatch
In some possible embodiments, first color masterbatch is heterochromatic colored color masterbatch with the second color masterbatch.Color masterbatch color includes red
Series, Yellow series, green-series, blueness series, purple series, it is such as pink, orange；Light yellow, buff；Green；It is blue
Color；Purple.In other feasible embodiments, first color masterbatch is homochromy or heterochromatic antibacterial color with the second color masterbatch
It is female.
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the present invention.
By mass percentage, the described first ventilative film layer accounts for the matter of colored ventilated membrane to colored ventilated membrane of the present invention
The 10%~30% of amount, the described second ventilative film layer accounts for the 40%~80% of the quality of colored ventilated membrane, and the described 3rd ventilative film layer is accounted for
The 10%~30% of the quality of colored ventilated membrane.
By the percentages for film quality of being breathed freely relative to each layer, the component and content of the described first ventilative film layer
For：Heavy CaCO3For 20%~40%, the first color masterbatch is that 5%~20%, PE is 40%~75%；The component of described second ventilative film layer
And content is：Heavy CaCO3It is 40%~60% for 40%~60%, PE；The component and content of described 3rd ventilative film layer be：Heavy
CaCO3For 20%~40%, the second color masterbatch is that 5%~20%, PE is 40%~75%.
Heretofore described the first color masterbatch, the second color masterbatch, heavy CaCO3And PE is prior art material,
Obtained by commercial goods.Color masterbatch is a kind of Masterbatch, is high polymer material special coloring agent, mainly by color or dyestuff, load
Body and additive composition.Heavy CaCO3Mesh number is not less than 400 mesh, and whiteness is more than 90, it is desirable to which whiteness is constant after high-temperature heating, energy
Improve the surface gloss and profile pattern of plastic membrane product.Wherein, the first color masterbatch, the second color masterbatch, heavy CaCO3、PE
It is the convenient source that the industry prepares ventilated membrane, can be obtained from commercial goods.
Embodiment 1
The present embodiment provides further preferred embodiment on the basis of above-mentioned technical proposal, as shown in Figure 1, colored saturating
Air film is made up of the three-layer co-extruded first ventilative film layer 3 of the ventilative ventilative film layer 2 and the 3rd of film layer 1, second, wherein, first
The accounting of quality of the quality relative to colored ventilated membrane 20 of ventilative film layer 1 is 20%；The quality of second ventilative film layer 2 relative to
The accounting of the colored mass of ventilated membrane 20 is 60%；The accounting of quality of the quality relative to colored ventilated membrane 20 of 3rd ventilative film layer 3
20%。
In the present embodiment, the first color masterbatch uses pink Masterbatch using blue master batch, the second color masterbatch.By each relative to described
The percentages of the ventilative film quality of layer, in the described first ventilative film layer 1, each component and content are respectively that blue master batch is
10%, heavy CaCO3It is 50% for 40%, PE, in the second ventilative film layer 2, each component and content are respectively heavy CaCO3For
50%, PE are 50%, in the described 3rd ventilative film layer 3, and each component and content are respectively that pink Masterbatch is 10%, heavy
CaCO3It is 50% for 40%, PE.
As shown in Figure 1, nanometer micropore 4 is evenly distributed with the colored ventilated membrane 20, the nanometer micropore 4 is saturating by first
The top layer of air film layer 1 is downward through the bottom of the 3rd ventilative film layer 3, and nanometer micropore 4 is so that the first ventilative film layer 1, second is breathed freely
There is interconnected hole, the aperture of the nanometer micropore 4 is 0.01~10 μm between the ventilative film layer 3 of film layer 2 and the 3rd.
Embodiment 2
Formula system according to embodiment 1 prepares colored ventilated membrane, as shown in Figure 2, the life of the colored ventilated membrane of the present embodiment
Production. art flow includes：Dispensing mixes 5 → extruding pelletization, 6 → fusion plastification 7 → 9 → three-level of three-layer co-extruded 8 → preheating stretching 10
Cold formed 11 → sided corona treatment 12 → winding the trimming 13 of → heat → cutting storage 14, specific production technology comprises the following steps：
Step 1：By heavy CaCO3, blue master batch, pink Masterbatch, PE carry out spatter property, MFR, purity and moisture and contain respectively
Amount is examined, and is then carried out respectively by the formula system of the described first ventilative film layer, the second ventilative film layer and the 3rd ventilative film layer
Dispensing, and mixing is stirred, the first compound, the second compound, the 3rd compound are obtained respectively.
In this step, each raw material mixed weight is less than or equal to 100 kilograms, and stirring incorporation time is 15~20 minutes.
Step 2：The first compound, the second compound and the 3rd compound that step 1 is mixed are delivered to three respectively
In dual-screw pelletizer, heated melting extrusion can obtain the ventilative particle of the first blueness, the ventilative particle and the 3rd of the second white respectively
The ventilative particle of pink.
Step 3：The ventilative particle of the first blueness, the ventilative particle of the second white and the 3rd pink that step 2 is made are ventilative
Particle is respectively placed in dehumidifying heat pump and carries out removal moisture drying, and drying temperature is set as 75~100 DEG C, and drying time is 2~4h.
Step 4：The temperature of screw extruder is set as 200~260 DEG C, the temperature of connecting tube is 230~240 DEG C, die head
Temperature is 230~250 DEG C.By the ventilative particle of the first blueness, the ventilative particle of the second white and the 3rd pink made from step 3 thoroughly
Gas particle is delivered into three screw extruder feeding buckets respectively, and the temperature setting of screw extruder is according to molten from screw extruder
Melt plasticizing to connecting tube insulation, then the extrusion flow being cast to die head is successively incremented by.
The ventilative particle of first blueness, the ventilative particle of the second white and the ventilative particle of the 3rd pink are controlled using measuring pump
The flow of plastic molten melt feed liquid, makes plastic molten melt material converge through ABA type distributor at die head and is full of whole die cavity, most
The ventilative particle of the first blueness, the ventilative particle of the second white and the ventilative particle of the 3rd pink pass through three-layer co-extruded in die head exit afterwards
Curtain coating obtains the three-layer co-extruded melt of the first blue melt, the second white melt and the 3rd pink melt composition respectively.
Step 5：Use casting roller, rubber roller by the three-layer co-extruded melt roller-compaction of step 4 for film base material, meanwhile,
Casting roller and rubber roller are cooled down to film base material, delustring processing.The temperature of the casting roller and rubber roller is set as 20
~30 DEG C, the mutual thrust between casting roller and rubber roller is 4~6Kg/cm2。
Step 6：Film base material is preheated by pre- hot-rolling, hot heating-up temperature is 70~90 DEG C, then passes through film base material
Three-level stretches to form nanometer level microporous, obtains colored ventilated membrane.
Stretch to be formed in nanometer level microporous technique in the three-level of this step, including first order draft temperature is 80~90
DEG C, this grade stretching stretches film base material the micropore to form 10~100nm；Second level draft temperature is 90~100 DEG C, level stretching
By the further reaming of micropore size on film base material to 0.01~10 μm；Third level draft temperature is 90~100 DEG C, forms uniform
It is distributed in the nanometer level microporous of film base material.
Step 7：Colored ventilated membrane carries out thermal finalization processing after three-level is stretched, and described thermal finalization treatment temperature is
105~120 DEG C.
Step 8：Chill roll carries out cooling and shaping to completing the colored ventilated membrane after stretching process, described cooling and shaping
Temperature is 25~35 DEG C.
Step 9：Sided corona treatment technique, the process is to carry out sided corona treatment to film surface by Corona roller, and Corona roller exists
Film surface is rolled, and being simultaneously emitted by 10,000 volts of electric spark makes film surface formation galvanic corrosion be embossed corona, the film after processing
Surface corona reaches 36~42Dines/cm.
Step 10：The colored ventilated membrane of carry-over pinch rolls winding finished product, the colored ventilated membrane rim charge of excision, and simultaneously to colored ventilated membrane
Parameter detected.
Step 11：The colored ventilated membrane volume of finished product is cut, packed, is put in storage.
By above step, the colored ventilated membrane with three-layer co-extruded structure of the present embodiment is made, wherein, first breathes freely
The ventilative film layer 3 of film layer the 1, the 3rd is heterochromatic, and the first ventilative film layer 1 is blue film layer of breathing freely, and the 3rd ventilative film layer 3 is saturating for pink
Air film layer, the second ventilative film layer 2 is the ventilative film layer of white of true qualities.The colored ventilated membrane is under upper by blue ventilated membrane
The ventilative film layer of layer, white and the ventilative film layer composition of pink, and colored ventilated membrane is evenly distributed with nanometer micropore 4, it is described to receive
Meter Wei Kong 4 is from the top layer of the ventilative film layer of blueness positioned at first layer, and the white for sequentially passing through downwards and connecting intermediate core layer is breathed freely
The bottom of film layer film layer until the pink of third layer is breathed freely, the aperture of the nanometer micropore 4 is 0.01~10 μm.
Physical property detection is carried out to colored ventilated membrane 20 made from the present embodiment, its items detection data is as follows：
1）Colored ventilated membrane color divergence is uniform；
2）Vapor transfer rate（WVTR）Test result is 2533g/m2* 24h, meets 1800 g/m2*24h<WVTR<3200 g/m2*24h
Requirement；
3）Longitudinal tensile strength test result is 5.3N/25cm, higher than standard 4N/25cm requirement；
4）Horizontal drawing tensile strength test results are 2.1N/25cm, higher than standard 2N/25cm requirement；
5）Lengthwise elongation at break test result is 350%, higher than the requirement of standard 200%；
6）Transverse breakage elongation percentage test result is 400%, higher than the requirement of standard 300%.
Embodiment 3
As shown in Figure 1, colored ventilated membrane 20 in the same manner as in Example 2, by the three-layer co-extruded first ventilative film layer 1, second
The ventilative ventilative film layer 3 of film layer 2 and the 3rd is constituted, wherein, quality of the quality relative to colored ventilated membrane 20 of the first ventilative film layer 1
Accounting be 10%；The accounting of quality of the quality relative to colored ventilated membrane 20 of second ventilative film layer 2 is 80%；3rd ventilated membrane
The accounting 10% of quality of the quality relative to colored ventilated membrane 20 of layer 3.
In the present embodiment, the first color masterbatch uses purple master batch, and the second color masterbatch uses pink Masterbatch.
By the percentages for film quality of being breathed freely relative to each layer, in the described first ventilative film layer, each component and
Content is respectively that purple master batch is 5%, heavy CaCO3It is 75% for 20%, PE, in the second ventilative film layer, each component and content
Respectively heavy CaCO3It is 60% for 40%, PE, in the described 3rd ventilative film layer, each component and content are respectively pink color masterbatch
Grain is 5%, heavy CaCO3It is 75% for 20%, PE.
According to aforementioned formula system, colored ventilated membrane 20 is made according to the preparation process of embodiment 2, the present embodiment is made
Colored ventilated membrane 20 carry out physical property detection, its items detection data it is as follows：
1）Colored ventilated membrane color divergence is uniform；
2）Vapor transfer rate（WVTR）Test result is 2653g/m2* 24h, meets 1800 g/m2*24h<WVTR<3200 g/m2*24h
Requirement；
3）Longitudinal tensile strength test result is 4.9N/25cm, higher than standard 4N/25cm requirement；
4）Horizontal drawing tensile strength test results are 2.1N/25cm, higher than standard 2N/25cm requirement；
5）Lengthwise elongation at break test result is 338%, higher than the requirement of standard 200%；
6）Transverse breakage elongation percentage test result is 396%, higher than the requirement of standard 300%.
Embodiment 4
As shown in Figure 1, the colored ventilated membrane 20 of the present embodiment is breathed freely by the three-layer co-extruded first ventilative film layer 1, second
The ventilative film layer 3 of film layer 2 and the 3rd is constituted, wherein, quality accounting of the quality relative to colored ventilated membrane 20 of the first ventilative film layer 1
For 30%；The quality of second ventilative film layer 2 is 40% relative to the accounting of the colored mass of ventilated membrane 20；The matter of 3rd ventilative film layer 3
Measure the accounting 30% relative to the colored mass of ventilated membrane 20.
In the present embodiment, the first color masterbatch uses yellow masterbatch, and the second color masterbatch uses purple master batch.
By the percentages for film quality of being breathed freely relative to each layer, in the described first ventilative film layer 1, each component and
Content is respectively that yellow masterbatch is 20%, heavy CaCO3It is 40% for 40%, PE, in the second ventilative film layer 2, each component and contains
Amount is respectively heavy CaCO3It is 40% for 60%, PE, in the described 3rd ventilative film layer 3, each component and content are respectively purple
Master batch is 20%, heavy CaCO3It is 40% for 40%, PE.
According to aforementioned formula system, colored ventilated membrane 20 is made according to the preparation process of embodiment 3, the present embodiment is made
Colored ventilated membrane 20 carry out physical property detection, its items detection data it is as follows：
1）Colored ventilated membrane color divergence is uniform；
2）Vapor transfer rate（WVTR）Test result is 2862g/m2* 24h, meets 1800 g/m2*24h<WVTR<3200 g/m2*24h
Requirement；
3）Longitudinal tensile strength test result is 4.6N/25cm, higher than standard 4N/25cm requirement；
4）Horizontal drawing tensile strength test results are 2.0N/25cm, reach standard 2N/25cm requirement；
5）Lengthwise elongation at break test result is 316%, higher than the requirement of standard 200%；
6）Transverse breakage elongation percentage test result is 384%, higher than the requirement of standard 300%.
Described above is the preferred embodiment of the present invention, can not limit the right model of the present invention with this certainly
Enclose, it is noted that for those skilled in the art, technical scheme is modified or waited
With replacing, without departure from the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of colored ventilated membrane, it is characterised in that：Described colored ventilated membrane is from top to bottom respectively by three-layer co-extruded
First ventilative film layer, the second ventilative film layer and the 3rd ventilative film layer are composited, wherein：
1）By mass percentage, the described first ventilative film layer accounts for the 10%~30% of colored ventilative film quality, and described second breathes freely
Film layer accounts for the 40%~80% of colored ventilative film quality, and the described 3rd ventilative film layer accounts for the 10%~30% of colored ventilative film quality；
2）By the percentages for film quality of being breathed freely relative to each layer, the component and content of the described first ventilative film layer are：
Heavy CaCO3For 20%~40%, the first color masterbatch is that 5%~20%, PE is 40%~75%；The component of described second ventilative film layer and contain
Measure and be：Heavy CaCO3It is 40%~60% for 40%~60%, PE；The component and content of described 3rd ventilative film layer be：Heavy CaCO3
For 20%~40%, the second color masterbatch is that 5%~20%, PE is 40%~75%.
2. colored ventilated membrane according to claim 1, it is characterised in that：First color masterbatch is homochromy with the second color masterbatch
Colored color masterbatch or heterochromatic colored color masterbatch.
3. colored ventilated membrane according to claim 1 or 2, it is characterised in that：It is uniformly distributed on the colored ventilated membrane
There is a nanometer micropore, the nanometer micropore is from bottom of the top layer of the first ventilative film layer downward through the 3rd ventilative film layer and connection.
4. colored ventilated membrane according to claim 3, it is characterised in that：The aperture of the nanometer micropore is 0.01~10 μ
m。
5. a kind of production technology of colored ventilated membrane as described in Claims 1-4 is any, comprises the following steps：
Step 1：By heavy CaCO3, color masterbatch, PE carry out spatter property, MFR, purity and moisture respectively and examine, then by matter
Percentages are measured, by 20%~40% heavy CaCO3, 5%~20% the first color masterbatch, 40%~75% PE carry out dispensing, and stir
Mixing is mixed, the first compound is obtained；By 40%~60% heavy CaCO3, 40%~60% PE carry out dispensing, and stir mixing,
Obtain the second compound；By 20%~40% heavy CaCO3, 5%~20% the second color masterbatch, 40%~75% PE carry out dispensing,
Mixing is equally stirred, the 3rd compound is obtained；Each raw material mixed weight is less than or equal to 100 kilograms, stirs incorporation time
For 15~20 minutes；
Step 2：The first compound, the second compound and the 3rd compound that step 1 is mixed are delivered to three double spiral shells respectively
In bar comminutor, it is colored that heated melting extrusion can obtain the first colored ventilative particle, the ventilative particle of the second white and the 3rd respectively
Ventilative particle；
Step 3：The first colored ventilative particle, the ventilative particle of the second white and the 3rd colored ventilative particle point that step 2 is made
Dehumidifying heat pump is not positioned over and carries out removal moisture drying, and drying temperature is set as 75~100 DEG C, and drying time is 2~4h；
Step 4：By the made from step 3 first colored ventilative particle, the ventilative particle of the second white and the 3rd colored ventilative particle point
Do not deliver into three screw extruder feeding buckets, the setting of the temperature of screw extruder according to from screw extruder fusion plastification to
Connecting tube is incubated, then the extrusion flow being cast to die head is successively incremented by, and measuring pump controls the flow of plastic molten melt feed liquid, makes plastics
Melting charge converges at die head through ABA type distributor and full of whole die cavity, finally passed through in die head exit three-layer co-extruded
Curtain coating obtains the three-layer co-extruded melt being made up of respectively the first colored melt, the second white melt and the 3rd colored melt；
Step 5：Use casting roller, rubber roller by the three-layer co-extruded melt roller-compaction of step 4 for colored film base material, meanwhile,
Casting roller and rubber roller are cooled down to film base material, delustring processing；
Step 6：Film base material is preheated by pre- hot-rolling, hot heating-up temperature is 70~90 DEG C, and film base material then is passed through into three-level
Stretching forms nanometer level microporous, obtains colored ventilated membrane；
Step 7：Colored ventilated membrane carries out thermal finalization processing after three-level is stretched, described thermal finalization treatment temperature for 105~
120℃；
Step 8：Chill roll carries out cooling and shaping, the temperature of described cooling and shaping to completing the colored ventilated membrane after stretching process
For 25~35 DEG C；
Step 9：The colored ventilated membrane of carry-over pinch rolls winding finished product, the colored ventilated membrane rim charge of excision, and the ginseng to colored ventilated membrane simultaneously
Number is detected；
Step 10：The colored ventilated membrane volume of finished product is cut, packed, is put in storage.
6. the production technology of colored ventilated membrane according to claim 5, it is characterised in that：In described step 4, setting
The temperature of screw extruder is 200~260 DEG C, and the temperature of connecting tube is 230~240 DEG C, and die head temperature is 230~250 DEG C.
7. the production technology of colored ventilated membrane according to claim 5, it is characterised in that：In described step 8 and step 9
Between be additionally provided with sided corona treatment technique, the process be by Corona roller to film surface carry out sided corona treatment, Corona roller is in film
Surface rolling, and being simultaneously emitted by 10,000 volts of electric spark makes film surface formation galvanic corrosion be embossed corona, the film surface after processing
Corona reaches 36~42Dines/cm.
8. the production technology of colored ventilated membrane according to claim 5, it is characterised in that：The casting roller and rubber roller
Temperature be set as 20~30 DEG C, the mutual thrust between casting roller and rubber roller be 4~6Kg/cm2。
9. the production technology of colored ventilated membrane according to claim 5, it is characterised in that：Drawn in the three-level of the step 6
Stretch to be formed in nanometer level microporous technique, including first order draft temperature is 80~90 DEG C, film base material is stretched shape by level stretching
Into 10~100nm micropore；Second level draft temperature is 90~100 DEG C, and the micropore size on film base material is entered one by this grade stretching
Reaming is walked to 0.01~10 μm；Third level draft temperature is 90~100 DEG C, and the nanoscale that formation is uniformly distributed in film base material is micro-
Hole.
10. a kind of colored ventilated membrane as described in Claims 1-4 is any is in disposable absorbent article, packing articles and rain
Application in clothing.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110079001A (en) * | 2019-05-27 | 2019-08-02 | 佛山华韩卫生材料有限公司 | A kind of very thin high ventilative zero leakage counterdie of pro-skin |
| CN110524739A (en) * | 2019-09-06 | 2019-12-03 | 枣阳市东航塑编彩印有限公司 | A kind of Polywoven Bag recycling technique |
| CN111688228A (en) * | 2020-06-19 | 2020-09-22 | 南通西田环保科技有限公司 | Continuous production process of PE breathable film composite fabric |
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| CN104448514A (en) * | 2014-11-03 | 2015-03-25 | 重庆和泰塑胶股份有限公司 | Breathable resin with high breathability and preparation method of breathable resin |
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| JPH05124144A (en) * | 1991-10-30 | 1993-05-21 | Unitika Ltd | Waterproof moisture permeable sheet |
| CN103496239A (en) * | 2013-09-29 | 2014-01-08 | 佛山华韩卫生材料有限公司 | Special WVTR (water vapour transmission rate) breathable film and production process thereof |
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| CN110079001A (en) * | 2019-05-27 | 2019-08-02 | 佛山华韩卫生材料有限公司 | A kind of very thin high ventilative zero leakage counterdie of pro-skin |
| CN110524739A (en) * | 2019-09-06 | 2019-12-03 | 枣阳市东航塑编彩印有限公司 | A kind of Polywoven Bag recycling technique |
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Application publication date: 20170915 |