CN111873589A - Novel barreled water smart cover and production process thereof - Google Patents

Novel barreled water smart cover and production process thereof Download PDF

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Publication number
CN111873589A
CN111873589A CN202010649851.4A CN202010649851A CN111873589A CN 111873589 A CN111873589 A CN 111873589A CN 202010649851 A CN202010649851 A CN 202010649851A CN 111873589 A CN111873589 A CN 111873589A
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cover
layer
water
sealing film
water sealing
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CN202010649851.4A
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Chinese (zh)
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贾作贵
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Individual
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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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0096—Producing closure members for containers, e.g. closure caps or stoppers
    • 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
    • B32B1/00—Layered products having a general shape other than plane
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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 form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • 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
    • 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
    • B32B7/06—Interconnection of layers permitting easy separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
    • B65D47/106—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures with devices for removing frangible parts of the pouring element or of its closure
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/302—Conductive
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/552—Fatigue strength
    • 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
    • B32B2307/712—Weather resistant
    • 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
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • 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
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • B32B2435/00—Closures, end caps, stoppers
    • B32B2435/02—Closures, end caps, stoppers for containers

Abstract

The invention discloses a novel barreled water smart cover, which comprises a cover body, wherein the cover body comprises a cover surface, a perforation is arranged in the middle of the cover surface, a water sealing film is bonded on the cover surface in a hot-pressing mode to seal the perforation, a hand tearing part extends outwards from the edge of the water sealing film, and the water sealing film is formed by compounding a BOPET layer, a first OPP layer, a second OPP layer and a modified PE layer which are sequentially arranged from top to bottom Simple process, low cost, high production efficiency, strong market competitiveness, wide commercial prospect and high popularization value.

Description

Novel barreled water smart cover and production process thereof
Technical Field
The invention relates to the technical field of a barreled water smart cover, in particular to a novel barreled water smart cover and a production process thereof.
Background
The intelligent cover of the barreled water is a very common industrial design product in life and is matched with the intelligent seat on the water dispenser or the water pumping pipe on the water pumping device, so that great convenience is provided for people to take water and drink water. The general bottled water clever lid is trompil and sunken formation pipe in general capping middle part, and the pipe lower extreme stretches into in the cask, and the port inlays and is equipped with interior stopper or welds and wear the piece to seal, but is equipped with the cover plate that the hand was torn and is uncovered on the capping and seals the trompil, plays dustproof dirty effect that separates.
In practical use, the inner plug or the top penetrating piece is sometimes difficult to jack or jack suddenly to damage the drinking equipment, which brings inconvenience. Aiming at the problem, various technical schemes have been proposed and solved by a plurality of patents in the prior art, but most of the technical schemes have no practicability, are complex in structure, increase in cost and increase in manufacturing difficulty, and limit production efficiency and market space.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a novel intelligent cover for barreled water.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a novel smart lid of bottled water, includes the lid, the lid includes the capping, the perforation has been seted up at the capping middle part, hot pressing bonding has the sealing film to perforate the shutoff on the capping, perforation and sealing film are circular to have same axis, it has the hand to tear the portion to seal the extension of water film edge outwards, sealing film is formed by from last BOPET layer, first OPP layer, second OPP layer and the compound of modified PE layer that sets gradually down, BOPET layer is biaxial stretching polyester film, and thickness is 0.018-0.022mm, and its surface printing has the pattern, first OPP layer and second OPP layer are unidirectional stretching polypropylene film, and thickness is 0.018-0.022mm, modified PE layer is modified polyethylene film, and thickness is 0.012-0.015 mm.
Preferably, the ratio of the radius of the water sealing film to the radius of the perforation is not less than 1.8.
Preferably, the melting point of the BOPET layer is 250-270 ℃, the average deviation of the thickness is not higher than 5%, the transverse tensile strength and the longitudinal tensile strength are not lower than 220MPa, and the transverse elongation at break and the longitudinal elongation at break are not higher than 100%.
Preferably, the melting points of the first OPP layer and the second OPP layer are both 120-160 ℃, the average deviation of the thicknesses is not higher than 5%, the transverse tensile strength is not lower than 220MPa, the longitudinal tensile strength is not lower than 130MPa, the transverse fracture nominal strain is not higher than 40%, and the longitudinal fracture nominal strain is not higher than 180%.
Preferably, the melting point of the modified PE layer is 80-100 ℃, the average thickness deviation is not higher than 5%, the transverse tensile strength and the longitudinal tensile strength are not lower than 25MPa, and the longitudinal fracture nominal strain and the transverse fracture nominal strain are not lower than 1000%.
Preferably, the hand tearing part is semicircular.
Preferably, the periphery of the through hole protrudes out of the inner wall of the cover surface to form an ejection ring.
Preferably, the height of the ejection ring is not less than 1 mm.
Based on foretell novel bottled water clever lid, still developed a production technology, this production technology includes following step:
A. the cover body is produced through compression molding or injection molding and then is subjected to fine finishing;
B. feeding the biaxially oriented polyester film roll material into a printing machine, and printing a pre-designed pattern on one surface of the roll material;
C. sequentially arranging the printed two-way stretching polyester film coil stock, a pair of one-way stretching polypropylene film coil stocks and the modified polyethylene film coil stock and synchronously feeding the two-way stretching polyester film coil stock, the pair of one-way stretching polypropylene film coil stocks and the modified polyethylene film coil stock into a compound machine for compounding to obtain a water sealing film coil stock, wherein the surface of the pattern on the two-way stretching polyester film coil stock is the surface of the water sealing film coil stock;
D. feeding the processed cover bodies and the water sealing film coil stock into an automatic film sticking machine, enabling the cover faces and the patterns on the water sealing film coil stock to correspond one to one, punching the patterns on the water sealing film coil stock by a punching knife on the automatic film sticking machine to obtain a single water sealing film, pressing the water sealing film onto the cover faces, and thermally pressing and bonding the parts of the water sealing film except for a hand tearing part and a covering perforation part onto the cover faces by using a circular hot pressing head, wherein the temperature of the hot pressing head is 150 and 190 ℃, and the hot pressing time is 1.2-1.4s, so as to obtain a novel barreled water sealing cover finished product;
preferably, the modified polyethylene film roll stock is formed by heating, melting and blowing mixed particles of low-density polyethylene and linear low-density polyethylene, wherein the mass ratio of the low-density polyethylene particles to the linear low-density polyethylene particles is 3:1-4: 1.
Due to the application of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the novel intelligent cover for barreled water replaces a combined structure of a cover plate, a hole, a round pipe and an inner plug or a top penetrating plate in the conventional intelligent cover for barreled water by a simple structure of a water sealing film for plugging the through hole, and the water sealing film is formed by compounding four layers of three films with different properties, wherein:
the biaxially oriented polyester film has the characteristics of high mechanical strength, wide use temperature, excellent barrier property, oil resistance, corrosion resistance, excellent surface property and the like, so that the biaxially oriented polyester film is used as the outermost layer of the water sealing film to print patterns and directly contacts air, and has good printing quality, strong barrier protection and strong environmental adaptability;
the modified polyethylene film has the characteristics of good moisture resistance, small moisture permeability, low thermal conductivity, no toxicity, no odor, high heat seal strength, good toughness, aging resistance and the like, so that the innermost layer of the water sealing film directly contacts drinking water, and the modified polyethylene film is sanitary, clean, impermeable, heat-insulating, tight in adhesion, lasting and effective;
the one-way stretching polypropylene film has the characteristics of smooth film surface, good temperature resistance and weather resistance, high bonding strength, good holding power performance, no toxicity, no odor, easy peeling and the like, so that the one-way stretching polypropylene film is used as two interlayers in the middle of a water sealing film, a BOPET layer, a first OPP layer, a second OPP layer and a modified PE layer are respectively tightly bonded and fully compounded, and the first OPP layer and the second OPP layer are easy to peel;
the water sealing film with the four-layer composite structure has high mechanical strength, is very tensile and pressure-resistant, is difficult to damage without assistance of sharp devices, can bear the external force of 30KG when the aperture of a perforation is 2cm through testing, can not be damaged, can be easily separated into a BOPET layer, a first OPP layer composite film, a second OPP layer and a modified PE layer composite film by pinching a hand tearing part to tear in use, can still firmly adhere a cover face to seal the perforation except that a small amount of thin materials on the edges of the hand tearing part and the hand tearing part on the second OPP layer and the modified PE layer composite film are torn and separated along with the BOPET layer and the first OPP layer composite film, but has greatly reduced mechanical strength, and can be easily punctured by a water dispenser or a water pumping pipe on a water pumping device when the aperture of the perforation is 2cm through testing, the composite film can be damaged only by bearing the external force of 3KG when the aperture of the second OPP layer and the modified PE layer is covered, and the second OPP layer and the modified PE layer composite membrane do not generate independent fragments after the membrane material property of the second OPP layer and the modified PE layer composite membrane is broken, and cannot enter a water body to influence drinking water safety, so that the novel barreled water smart cover provided by the invention solves the problems that an inner plug or a top penetrating piece in a conventional barreled water smart cover is difficult to jack up and suddenly jacks up to damage drinking water equipment, is safe and practical, can completely replace the conventional barreled water smart cover in function, is also suitable for transportation, storage and use, has the advantages of convenience in use, simple process, low cost and high production efficiency compared with the conventional barreled water smart cover, and has strong market competitiveness, wide commercial prospect and high popularization value.
Drawings
Fig. 1 is a perspective view of an embodiment of a novel intelligent cap for barreled water, which is provided by the invention.
Fig. 2 is a perspective view of a cover body in an embodiment of the novel intelligent cap for barreled water, which is provided by the invention.
Fig. 3 is a schematic structural diagram of a water sealing membrane in an embodiment of the novel intelligent cap for barreled water provided by the invention.
In the figure: 1. a cover body; 2. covering; 3. perforating; 4. sealing a water film; 5. a BOPET layer; 6. a first OPP layer; 7. a second OPP layer; 8. a modified PE layer; 9. a hand tear portion; 10. and (6) ejecting the ring.
Detailed Description
The present invention will be further described in detail with reference to the following specific examples:
combine fig. 1, fig. 2 and fig. 3, this embodiment is a novel smart lid of bottled water, including lid 1, lid 1 includes capping 2, perforation 3 has been seted up at capping 2 middle part, it has the shutoff water film 4 to plug perforation 3 to thermocompression bonding on capping 2, perforation 3 and shutoff water film 4 are circular, and have same axis, the extension of 4 edges of shutoff water film has hand tear portion 9, it is formed by the BOPET layer 5 that sets gradually from last to down, first OPP layer 6, second OPP layer 7 and modified PE layer 8 complex to seal water film 4, BOPET layer 5 is biaxial stretching polyester film, thickness is 0.018-0.022mm, its surface printing has the pattern, first OPP layer 6 and second OPP layer 7 are unidirectional stretching polypropylene film, thickness is 0.018-0.022mm, modified PE layer 8 is modified polyethylene film, thickness is 0.012-0.015mm, wherein:
the ratio of the radius of the water sealing film 4 to the radius of the through hole 3 is not lower than 1.8, so that the water sealing film 4 and the cover surface 2 have enough adhesive area and adhesive strength to ensure the sealing effect of the water sealing film 4;
the melting point of the BOPET layer 5 is 250-270 ℃, the average thickness deviation is not higher than 5%, the transverse tensile strength and the longitudinal tensile strength are not lower than 220MPa, and the transverse elongation at break and the longitudinal elongation at break are not higher than 100% (a detection report with the serial number of (2020) SJZWJ-XS0238 is issued by Jiangsu province product quality supervision and inspection research institute of BOPET layer 5);
the melting points of the first OPP layer 6 and the second OPP layer 7 are both 120-160 ℃, the average thickness deviation is not higher than 5%, the transverse tensile strength is not lower than 220MPa, the longitudinal tensile strength is not lower than 130MPa, the transverse fracture nominal strain is not higher than 40%, and the longitudinal fracture nominal strain is not higher than 180% (a detection report with the number WTQ180280 is given by the quality supervision and inspection of chatting products on the uniaxial tensile polypropylene films adopted by the first OPP layer 6 and the second OPP layer 7);
the melting point of the modified PE layer 8 is 80-100 ℃, the average thickness deviation is not higher than 5%, the transverse tensile strength and the longitudinal tensile strength are not lower than 25MPa, and the nominal strain at longitudinal fracture and the nominal strain at transverse fracture are not lower than 1000% (a detection report with the number of YXZJ/QJ20190318030 is provided by Shandong Teng flying product quality detection Co., Ltd.) the modified PE layer 8 adopts a modified polyethylene film;
the hand tearing part 9 is in a semicircular shape, so that the appearance is attractive and natural;
3 week of perforation along outstanding 2 inner walls in the capping form ejecting ring 10, make things convenient for lid 1 ejecting after the shaping in the die cavity, when the bottled water is put upside down or when crouching, ejecting ring 10 has also avoided the water to 3 week of perforation along with the excessive extrusion of 4 seams of water film, ejecting ring 10 height is not less than 1mm, is less than the required length of pipe in the clever lid of conventional bottled water far away.
The production process of the embodiment comprises the following steps:
A. after the cover body 1 is produced by compression molding or injection molding, finishing processing is carried out;
B. feeding the biaxially oriented polyester film roll material into a printing machine, and printing a pre-designed pattern on one surface of the roll material;
C. sequentially arranging the printed roll material of the biaxially oriented polyester film, the pair of rolls materials of the uniaxially oriented polypropylene film and the modified polyethylene film and synchronously feeding the two rolls materials of the biaxially oriented polyester film, the pair of rolls materials of the uniaxially oriented polypropylene film and the modified polyethylene film into a compound machine for compounding to obtain a roll material of the water sealing film 4, wherein the surface of the pattern on the roll material of the biaxially oriented polyester film is the surface of the roll material of the water sealing film 4;
D. feeding the processed cover bodies 1 and the roll material of the water sealing film 4 into an automatic film sticking machine, enabling the patterns on the roll materials of the cover surfaces 2 and the water sealing film 4 to correspond one to one, punching the patterns on the roll material of the water sealing film 4 by a punching knife on the automatic film sticking machine to obtain a single water sealing film 4, pressing the water sealing film 4 onto the cover surfaces 2, and thermally pressing and bonding the parts of the water sealing film 4 except the hand tearing part 9 and the part covering the through hole 3 onto the cover surfaces 2 by using a circular hot pressing head, wherein the temperature of the hot pressing head is 150-.
The modified polyethylene film coil material is formed by heating, melting and blowing mixed particles of low-density polyethylene and linear low-density polyethylene, wherein the mass ratio of the low-density polyethylene particles to the linear low-density polyethylene particles is 3:1-4:1, and the polyethylene film with stronger moisture resistance, higher heat seal strength and better toughness is obtained through a plastic particle blending modification process.
The invention has the following structural principle, using method and beneficial effects:
the novel intelligent cover for barreled water provided by the invention replaces a combined structure of a cover plate, a hole, a round pipe and an inner plug or a top penetrating plate in the conventional intelligent cover for barreled water by a simple structure of a water sealing film 4 for plugging a perforation 3, and the water sealing film 4 is formed by compounding four layers of three films with different properties, wherein:
the biaxially oriented polyester film has the characteristics of high mechanical strength, wide use temperature, excellent barrier property, oil resistance, corrosion resistance, excellent surface property and the like, so that the biaxially oriented polyester film is used as the outermost layer of the water sealing film 4 for printing patterns and directly contacts air, and has good printing quality, strong barrier protection and strong environmental adaptability;
the modified polyethylene film has the characteristics of good moisture resistance, small moisture permeability, low thermal conductivity, no toxicity, no odor, high heat seal strength, good toughness, aging resistance and the like, so that the innermost layer of the water sealing film 4 is in direct contact with drinking water, and the modified polyethylene film is sanitary, clean, impermeable, heat-insulating, tight in adhesion, lasting and effective;
the one-way stretching polypropylene film has the characteristics of smooth film surface, good temperature resistance and weather resistance, high bonding strength, good holding power performance, no toxicity, no odor, easy peeling and the like, so the one-way stretching polypropylene film is used as two interlayers in the middle of the water sealing film 4, the BOPET layer 5, the first OPP layer 6, the second OPP layer 7 and the modified PE layer 8 are respectively tightly bonded and fully compounded, and the first OPP layer 6 and the second OPP layer 7 are easy to peel;
the water sealing membrane 4 with the four-layer composite structure has high mechanical strength, is very tensile and pressure-resistant, is difficult to damage without assistance of sharp devices, and can bear the external force of 30KG without being damaged when the aperture of the perforation 3 is 2cm through testing, the water sealing membrane 4 can bear the external force of 30KG without being damaged when being covered by the perforation 3 on the water sealing membrane 4, the water sealing membrane 4 can be easily separated into a BOPET layer 5, a first OPP layer 6 composite membrane, a second OPP layer 7 and a modified PE layer 8 composite membrane by pinching the tearing part 9 to tear in use, a small amount of thin materials on the edges of the tearing part 9 and the tearing part 9 on the second OPP layer 7 and the modified PE layer 8 composite membrane still firmly adhere to the cover surface 2 to seal the perforation 3 after being torn and separated along with the BOPET layer 5 and the first OPP layer 6 composite membrane, but the mechanical strength is greatly reduced, and when the aperture of the perforation 3 is 2cm through testing, the water sealing membrane 4 can only bear the external force of 3KG on the second OPP layer 7 and the modified PE layer 8 and can be damaged by the external force of, and the second OPP layer 7 and the composite membrane of the modified PE layer 8 do not generate independent fragments after the membrane material property of the composite membrane is broken, and the composite membrane cannot enter a water body to influence the drinking water safety, so the novel barreled water smart cover provided by the invention solves the problems that an inner plug or a top penetrating piece in the conventional barreled water smart cover is difficult to jack open sometimes and suddenly jack open sometimes to damage drinking water equipment, is safe and practical, can completely replace the conventional barreled water smart cover in function, is also suitable for transportation, storage and use, has the advantages of convenient use, simple process, low cost and high production efficiency compared with the conventional barreled water smart cover, and has strong market competitiveness, wide commercial prospect and high popularization value.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.

Claims (10)

1. The utility model provides a novel smart lid of bottled water which characterized in that: comprises a cover body (1), the cover body (1) comprises a cover face (2), a perforation (3) is arranged in the middle of the cover face (2), a water sealing film (4) is bonded on the cover face (2) in a hot-pressing mode to seal the perforation (3), the cover face (2), the perforation (3) and the water sealing film (4) are circular and have the same center shaft, the edge of the water sealing film (4) extends outwards to form a hand tearing part (9), the water sealing film (4) is formed by compounding a BOPET layer (5), a first OPP layer (6), a second OPP layer (7) and a modified PE layer (8) which are sequentially arranged from top to bottom, the BOPET layer (5) is a bidirectional stretching polyester film, the thickness is 0.018-0.022mm, patterns are printed on the surface of the BOPET layer, the first OPP layer (6) and the second OPP layer (7) are unidirectional stretching polypropylene films, the thickness is 0.018-0.022mm, and the modified PE layer (8) is a modified polyethylene film, the thickness is 0.012-0.015 mm.
2. The novel intelligent cover for barreled water as claimed in claim 1, wherein: the ratio of the radius of the water sealing film (4) to the radius of the through hole (3) is not less than 1.8.
3. The novel intelligent cover for barreled water as claimed in claim 1, wherein: the melting point of the BOPET layer (5) is 250-270 ℃, the average thickness deviation is not higher than 5%, the transverse tensile strength and the longitudinal tensile strength are not lower than 220MPa, and the transverse elongation at break and the longitudinal elongation at break are not higher than 100%.
4. The novel intelligent cover for barreled water as claimed in claim 1, wherein: the melting points of the first OPP layer (6) and the second OPP layer (7) are both 120-160 ℃, the average thickness deviation is not higher than 5%, the transverse tensile strength is not lower than 220MPa, the longitudinal tensile strength is not lower than 130MPa, the transverse fracture nominal strain is not higher than 40%, and the longitudinal fracture nominal strain is not higher than 180%.
5. The novel intelligent cover for barreled water as claimed in claim 1, wherein: the melting point of the modified PE layer (8) is 80-100 ℃, the average thickness deviation is not higher than 5%, the transverse tensile strength and the longitudinal tensile strength are not lower than 25MPa, and the nominal strain at longitudinal fracture and the nominal strain at transverse fracture are not lower than 1000%.
6. The novel intelligent cover for barreled water as claimed in claim 1, wherein: the hand tearing part (9) is semicircular.
7. The novel intelligent cover for barreled water as claimed in claim 1, wherein: the periphery of the through hole (3) protrudes out of the inner wall of the cover surface (2) to form an ejection ring (10).
8. The novel intelligent cover for barreled water as claimed in claim 7, wherein: the height of the ejection ring (10) is not less than 1 mm.
9. A novel intelligent cap for barreled water is developed based on the novel intelligent cap for barreled water as claimed in claim 1, and is characterized in that the production process comprises the following steps:
A. the cover body is produced through compression molding or injection molding and then is subjected to fine finishing;
B. feeding the biaxially oriented polyester film roll material into a printing machine, and printing a pre-designed pattern on one surface of the roll material;
C. sequentially arranging the printed two-way stretching polyester film coil stock, a pair of one-way stretching polypropylene film coil stocks and the modified polyethylene film coil stock and synchronously feeding the two-way stretching polyester film coil stock, the pair of one-way stretching polypropylene film coil stocks and the modified polyethylene film coil stock into a compound machine for compounding to obtain a water sealing film coil stock, wherein the surface of the pattern on the two-way stretching polyester film coil stock is the surface of the water sealing film coil stock;
D. and (3) feeding each processed cover body and the water sealing film coil stock into an automatic film sticking machine, enabling each cover face and each pattern on the water sealing film coil stock to correspond one to one, punching the patterns on the water sealing film coil stock by a punching knife on the automatic film sticking machine to obtain a single water sealing film, pressing the water sealing film to the cover face, hot-pressing and bonding the parts of the water sealing film except the hand tearing part and the part covering the perforation on the cover face by using a circular hot-pressing head, wherein the temperature of the hot-pressing head is 150 plus 190 ℃, and the hot-pressing time is 1.2-1.4s, so that a finished product of the novel barreled water seal cover is obtained.
10. The production process of the novel intelligent cap for barreled water as claimed in claim 9, wherein the production process comprises the following steps: the modified polyethylene film coil stock is formed by heating, melting and blowing mixed particles of low-density polyethylene and linear low-density polyethylene, wherein the mass ratio of the low-density polyethylene particles to the linear low-density polyethylene particles is 3:1-4: 1.
CN202010649851.4A 2020-07-08 2020-07-08 Novel barreled water smart cover and production process thereof Withdrawn CN111873589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010649851.4A CN111873589A (en) 2020-07-08 2020-07-08 Novel barreled water smart cover and production process thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010649851.4A CN111873589A (en) 2020-07-08 2020-07-08 Novel barreled water smart cover and production process thereof

Publications (1)

Publication Number Publication Date
CN111873589A true CN111873589A (en) 2020-11-03

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CN202010649851.4A Withdrawn CN111873589A (en) 2020-07-08 2020-07-08 Novel barreled water smart cover and production process thereof

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102511418B1 (en) * 2021-11-02 2023-03-17 (주)스마트코퍼레이션 Bottle cap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102511418B1 (en) * 2021-11-02 2023-03-17 (주)스마트코퍼레이션 Bottle cap

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Application publication date: 20201103