Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Environmentally-friendly prismatic stripping-difficult corrugated carton

A corrugated box, environmentally friendly technology, applied in the direction of packaging paper, adhesive types, flexible coverings, etc., to achieve the effects of excellent product quality and cost, simple process operation, and easy control of modification

Inactive Publication Date: 2018-06-12
CHUZHOU CIGARETTE MATERIALS FACTORY
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of environmental protection and good adhesive performance of adhesives for corrugated boxes, the invention provides an environmentally friendly corrugated box with corrugated shapes that are difficult to peel off. The adhesive for the carton is a modified starch-PVA adhesive, wherein Modified starch is prepared by high-energy radiation technology. Starch will degrade when irradiated by γ-rays, accompanied by oxidation, hydrolysis and other processes. It does not need to add initiators, thus avoiding the shortcomings of chemical methods, and the process is simple to operate, Modification is easy to control, product quality and cost are better than chemically modified starch; at the same time, after the modified starch is mixed with PVA, the adhesion is significantly improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An environment-friendly corrugated cardboard box with a corrugated shape that is difficult to peel off, including a box body composed of corrugated cardboard. The corrugated cardboard is formed by bonding cardboard paper and corrugated paper with an adhesive. The preparation method of the adhesive is as follows:

[0018] (1) Radiation modified starch: place 2kg of corn starch evenly in the product box, apply 60 The Co irradiation source is irradiated with oxygen through dynamic irradiation, where the irradiation station time is 60min, and the radiation dose is 6kGy, then take out the irradiated starch and mix it evenly, then add 12kg of water, stir and disperse into a starch paste;

[0019] (2) Preparation of PVA glue: Get 3kg of PVA and slowly add it to 20kg of water, insulate and stir at 90°C until the PVA is completely dissolved, after cooling to 60°C, add 10g of ammonium persulfate initiator, stir and react for 20min, to obtain PVA glue;

[0020] (3) Preparation of ...

Embodiment 2

[0022] An environment-friendly corrugated cardboard box with a corrugated shape that is difficult to peel off, including a box body composed of corrugated cardboard. The corrugated cardboard is formed by bonding cardboard paper and corrugated paper with an adhesive. The preparation method of the adhesive is as follows:

[0023] (1) Radiation modified starch: place 2.3kg corn starch evenly in the product box, apply 60 The Co irradiation source is subjected to aerobic irradiation by means of dynamic irradiation, where the irradiation station time is 80min, and the radiation dose is 8kGy, then take out the irradiated starch and mix it evenly, then add 13kg of water, stir and disperse into a starch paste;

[0024] (2) PVA glue preparation: get 4kgPVA and slowly join in 22kg water, insulate and stir at 90°C until the PVA is completely dissolved, after cooling to 60°C, add 12g of ammonium persulfate initiator, stir and react for 30min, to obtain PVA glue;

[0025] (3) Preparation of...

Embodiment 3

[0027] An environment-friendly corrugated cardboard box with a corrugated shape that is difficult to peel off, including a box body composed of corrugated cardboard. The corrugated cardboard is formed by bonding cardboard paper and corrugated paper with an adhesive. The preparation method of the adhesive is as follows:

[0028] (1) Radiation modified starch: place 2.5kg corn starch evenly in the product box, apply 60 The Co irradiation source is irradiated with oxygen through dynamic irradiation, where the irradiation station time is 90min, and the radiation dose is 10kGy, then take out the irradiated starch and mix it evenly, then add 15kg of water, stir and disperse into a starch paste;

[0029] (2) PVA glue preparation: get 5kgPVA and slowly join in 25kg water, insulate and stir at 90°C until the PVA is completely dissolved, after cooling to 60°C, add 15g of ammonium persulfate initiator, stir and react for 40min, to obtain PVA glue;

[0030] (3) Preparation of modified sta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an environmentally-friendly prismatic stripping-difficult corrugated carton which comprises a carton body consisting of corrugated boards, wherein each corrugated board is formed by adhering case board paper with corrugated paper through an adhesive; a preparation method of the adhesive comprises the following steps: uniformly placing corn starch into a product case, performing aerobic irradiation by applying gamma ray radiated from a 60Co radiation source through a dynamic irradiation mode, then taking out the irradiated starch, uniformly stirring and mixing the starch, adding water, and stirring and dispersing the mixer into starch paste; slowly adding PVA into water, stirring the PVA at 90 DEG C in a heat preservation manner till the PVA is completely dissolved,cooling to 60 DEG C, and adding an initiator for stirring reaction for 20 to 40 min, so as to obtain a PVA glue liquid; uniformly mixing the starch paste with the PVA glue liquid, then adding a boraxsolution for stirring reaction for 30 to 40 min, adjusting the pH value of the composite glue liquid to 6 to 7 by using a sodium hydroxide solution, and continuously enabling the solution to react for1 to 2 h, so as to obtain the environmentally-friendly adhesive. According to the environmentally-friendly prismatic stripping-difficult corrugated carton, through the adoption of the gamma-ray modified starch, the process is easy to operate, and modification is easy to control; the product quality is higher than that of chemically modified starch, and the cost is lower than that of the chemically modified starch.

Description

technical field [0001] The invention belongs to the technical field of carton production, and relates to a corrugated carton, in particular to an environment-friendly corrugated carton with a corrugated shape that is difficult to peel off. Background technique [0002] Corrugated boxes are made of corrugated cardboard, also known as corrugated cardboard, which is made of at least one layer of corrugated paper and one layer of cardboard paper, which has good elasticity and extensibility. It is mainly used in the manufacture of cartons, the sandwich of cartons and other packaging materials for fragile goods. There are many types of corrugated cardboard adhesives. Among them, the existing starch adhesives have high bonding strength, good moisture resistance, safety and non-toxicity, and are widely used. Traditional starch adhesives use chemical agents to oxidize starch. , but the chemical method generally has some characteristics, such as unstable product quality, uneven react...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/02C09J129/04C09J11/04B65D65/40C08B30/12
CPCB65D65/403C08B30/12C08K2003/387C09J11/04C09J103/02C08L29/04C08K3/38Y02W90/10
Inventor 胡宏旗杜威陶香君郭杰
Owner CHUZHOU CIGARETTE MATERIALS FACTORY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com