CN114619710A - Preparation method of paper straw with characteristics of no softening, no dispersion and low migration of hot water in soaking - Google Patents
Preparation method of paper straw with characteristics of no softening, no dispersion and low migration of hot water in soaking Download PDFInfo
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- CN114619710A CN114619710A CN202110630080.9A CN202110630080A CN114619710A CN 114619710 A CN114619710 A CN 114619710A CN 202110630080 A CN202110630080 A CN 202110630080A CN 114619710 A CN114619710 A CN 114619710A
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- layer paper
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- 239000010902 straw Substances 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000013508 migration Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 230000005012 migration Effects 0.000 title claims description 24
- 239000006185 dispersion Substances 0.000 title claims description 11
- 238000002791 soaking Methods 0.000 title description 3
- 238000000576 coating method Methods 0.000 claims abstract description 95
- 239000011248 coating agent Substances 0.000 claims abstract description 92
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000011282 treatment Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims description 28
- 239000000839 emulsion Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 230000035622 drinking Effects 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000011358 absorbing material Substances 0.000 claims description 4
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- 235000013361 beverage Nutrition 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 235000013336 milk Nutrition 0.000 description 4
- 239000008267 milk Substances 0.000 description 4
- 210000004080 milk Anatomy 0.000 description 4
- 241001122767 Theaceae Species 0.000 description 2
- 235000016213 coffee Nutrition 0.000 description 2
- 235000013353 coffee beverage Nutrition 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 239000011049 pearl Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- -1 Poly Butylene adipate Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 229920006238 degradable plastic Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
- B31D5/0095—Making drinking straws
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Abstract
The invention provides a preparation method of a low-migration paper straw without softening and scattering of bubble hot water, which comprises upper-layer paper, middle-layer paper and bottom-layer paper, wherein the upper surface of the upper-layer paper is coated with a total coating, the lower surface of the bottom-layer paper is coated with the total coating, and the upper surface and the lower surface of the middle-layer paper are both coated with the total coating; the overall coating includes a base coat and a top coat. According to the invention, through multiple coating treatments, the two ends, the surface and the interior of the manufactured paper straw are sealed by the anti-permeation coatings, and the anti-permeation coatings have the capability of preventing media such as water and beverages from permeating, so that the middle paper is in a dry state, the humidity is slowly increased, the paper cannot be softened, the paper can be kept in a stiff state all the time in the using process of various beverages, and the taste, experience and mobility test of the paper straw are obviously superior to those of the existing paper straw and approximate to the experience of a plastic straw.
Description
Technical Field
The invention relates to the technical field of paper suction pipe preparation, in particular to a preparation method of a paper suction pipe which is not softened, dispersed and migrated by soaking hot water.
Background
With the advent of legislation, disposable common plastic straws have been slowly banned around the world, and alternatives to common plastic straws, one degradable plastic and one paper, have emerged on the market. The degradable straw is mainly made of PLA as a basic raw material, the problem is that the PLA is mainly derived from starch, the grain competition with people is realized, the source is limited mainly by the PLA monomer imported in America and Europe, the PLA is too fragile, a lot of additional plasticizers, cross-linking agents or PBAT (Poly Butylene adipate) and the like need to be added for modification, the PLA is not in the latest GB9685 regulation, the key is that the degradable PLA needs to be matched with a degradable recovery device, additional composting, anaerobic bacteria are added, and the temperature is suitable, if the conditions are not met, the PLA cannot be degraded even when the PLA is discarded for ten years in China, and Europe and America begin to limit the PLA. Paper drinking straws are also an alternative which has slowly emerged in the first two years, and has become popular in europe and the united states, and a small number of customers are trying to use the paper drinking straws in China. The paper belongs to green circular economy, is environment-friendly, degradable, recyclable and proper in price, but the paper straw on the market at present has certain defects in performance, can not be dispersed after being soaked in water, but can be softened in a few minutes due to the water absorption of the paper, so that the hardness is not enough, some solid beverages such as milk tea pearls cannot be sucked out, the taste and experience of people are affected, and people worry that the paper which is softened after being soaked in water can be migrated out to affect the safety due to the taste of a little paper, so that the paper straw is recently questioned, and the further popularization and use of the paper are affected.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a preparation method of a paper straw with constant softening, no dispersion and low migration of soaked hot water, which is characterized in that raw material paper and a process produced by the existing paper straw are improved to produce the paper straw with constant softening, no dispersion and low migration of the soaked water, so that the taste, experience and safety of people are improved after the paper straw is used for food and beverage, and the problems that the paper straw with constant softening, no dispersion can be achieved after the paper straw is soaked in water, the paper straw with constant softening after a few minutes has insufficient hardness, some solid beverages such as milk tea pearls cannot be sucked out, the taste and experience of people are affected, and the people worry about the problem that the migration of substances of the paper with constant softening of the soaked water influences the safety due to the taste of a little paper are solved.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a preparation method of paper straw of low migration that bubble hot water does not become soft and does not scatter, the paper straw of low migration that bubble hot water does not become soft and does not scatter includes upper paper, middle level paper and bottom paper, upper surface coating of upper paper has total coating, bottom paper lower surface coating has total coating, surface all coating has total coating about the middle level paper for the paper straw of three-layer paper can mutually glue, the reelpipe under the effect of total coating heat sealability.
The overall coating includes a base coat and a top coat.
Preferably, the paper straw with the low migration and without softening of the hot water comprises upper paper, first middle paper, second middle paper and bottom paper, wherein a total coating is coated on the upper surface of the upper paper, a total coating is coated on the lower surface of the bottom paper, the total coating is coated on the upper and lower surfaces of the first middle paper, and the total coating is coated on the lower surface of the second middle paper, so that the paper straws with the four layers of paper can be mutually adhered and reeled under the action of the heat sealability of the total coating;
the overall coating includes a base coat and a top coat.
The preparation method of the paper straw with the characteristics of no softening, no dispersion and low migration of the hot water in the foam comprises the following steps:
s1, uniformly coating the upper surface of the upper layer paper, the upper and lower surfaces of the middle layer paper (first middle layer paper), the lower surface of the second middle layer paper and the lower surface of the bottom layer paper with an anti-permeation coating A to form a softer bottom coating, wherein the coating frequency of the anti-permeation coating A is 1-2 times, and drying the paper coated with the bottom coating through a drying channel of drying equipment;
s2, coating the anti-penetration coating B on the surface of each piece of paper coated with the base coat obtained in the step S1 again to form a top coat, and drying and winding each piece of paper through a drying tunnel again;
s3, heating, pressing, rolling, cutting and piling up the paper sheets obtained in the S2 by paper suction pipe equipment to prepare a paper suction pipe A for later use;
s4, dipping 20-60% diluted anti-penetration coating B on the two ends of the paper straw A prepared in the step S3 through a water absorbing material, and pressing the two ends of the paper straw A to form a paper straw B;
s5, pushing the paper straw B to a drying room for drying treatment, and then completing preparation.
Preferably, the anti-permeation coating A is food-grade butylbenzene emulsion, food-grade anti-permeation acrylic acid emulsion with TG lower than 15 or EAA emulsion, and mainly provides permeability of media such as water resistance and beverages.
Preferably, the anti-permeation coating B is food-grade anti-permeation acrylic emulsion or EAA emulsion with TG higher than 30, so that the hardness of the paper straw is improved, the migration degree is reduced, and the paper straw is prevented from being scattered in use, so that the use degree is reduced, and the taste of the beverage is influenced.
Preferably, the total coating is applied in an amount of 5 to 20 g.
Preferably, a top coating formed by the anti-penetration coating B in the S3 needs to be blown to below 60 ℃ by cold air before being dried and rolled, so that the top coating has good anti-sticking performance and does not stick back after being heated and rolled.
(III) advantageous effects
The invention provides a preparation method of a paper straw with low migration and without softening of hot water in a bubble and a preparation method thereof. The method has the following beneficial effects:
the invention still selects the existing production process and equipment on the market, but the paper on the outermost layer and the innermost layer of the paper suction pipe is subjected to multiple coating treatments, so that the outermost layer and the innermost layer of the paper suction pipe have the penetration resistance to media such as hot water, hot oil, milk, beverages, coffee and the like, two ends, the surface and the interior of the manufactured paper suction pipe are sealed by the anti-penetration coatings, the middle paper is in a dry state due to the capability of preventing the penetration of the media such as water, beverages and the like, the humidity is slowly increased, the paper cannot be softened, the paper suction pipe can be always kept in a stiff state in the using process of various beverages, and the taste, experience and migration test are obviously superior to those of the existing paper suction pipes and approximate to the experience of plastic suction pipes.
Drawings
FIG. 1 is a graph of the overall coating profile for a paper drinking straw constructed from three layers of paper;
FIG. 2 is a graph showing the overall coating profile of a paper drinking straw constructed from four layers of paper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the embodiment of the invention provides a preparation method of a low-migration paper straw without softening and scattering of bubble hot water, the low-migration paper straw without softening and scattering of the bubble hot water comprises upper paper, middle paper and bottom paper, wherein a total coating is coated on the upper surface of the upper paper, the total coating is coated on the lower surface of the bottom paper, and the total coating is coated on the upper surface and the lower surface of the middle paper;
the overall coating includes a base coat and a top coat.
The preparation method of the paper straw with the characteristics of no softening, no dispersion and low migration of the hot water in the foam comprises the following steps:
s1, uniformly coating the upper surface of the upper layer paper, the upper and lower surfaces of the middle layer paper and the lower surface of the bottom layer paper with an anti-permeation coating A to form a soft bottom coating, wherein the coating frequency of the anti-permeation coating A is 1-2 times, and drying the paper coated with the bottom coating through a drying equipment drying channel;
s2, coating the anti-penetration coating B on the surface of each piece of paper coated with the base coat obtained in the step S1 again to form a top coat, and drying and winding each piece of paper through a drying tunnel again;
s3, heating, pressing, rolling, cutting and piling up the paper sheets obtained in the S2 by paper suction pipe equipment to prepare a paper suction pipe A for later use;
s4, dipping and diluting 40% of anti-penetration coating B at two ends of the paper straw A prepared in the step S3 by using a water absorbing material, and pressing the anti-penetration coating B to the two ends of the paper straw A to prepare a paper straw B;
s5, pushing the paper straw B to a drying room for drying treatment, and then completing preparation.
The second embodiment:
the embodiment of the invention provides a preparation method of a low-migration paper straw without becoming soft by using hot water, which comprises upper paper, first middle paper, second middle paper and bottom paper, wherein the upper surface of the upper paper is coated with a total coating, the lower surface of the bottom paper is coated with the total coating, the upper surface and the lower surface of the first middle paper are both coated with the total coating, and the lower surface of the second middle paper is coated with the total coating;
the overall coating includes a base coat and a top coat.
The preparation method of the paper straw with the characteristics of no softening, no dispersion and low migration of the hot water in the foam comprises the following steps:
s1, uniformly coating the upper surface of the upper layer paper, the upper and lower surfaces of the first middle layer paper, the lower surface of the second middle layer paper and the lower surface of the bottom layer paper with an anti-permeation coating A to form a softer bottom coating, wherein the coating frequency of the anti-permeation coating A is 1-2 times, and drying the paper coated with the bottom coating through a drying channel of drying equipment;
s2, coating the anti-penetration coating B on the surface of each paper coated with the bottom coating obtained in the S1 again to form a top coating, and drying and rolling each paper through the drying channel again;
s3, heating, pressing, rolling, cutting and piling up the paper sheets obtained in the S2 by paper suction pipe equipment to prepare a paper suction pipe A for later use;
s4, dipping and diluting 40% of anti-penetration coating B at two ends of the paper straw A prepared in the step S3 by using a water absorbing material, and pressing the anti-penetration coating B to the two ends of the paper straw A to prepare a paper straw B;
s5, pushing the paper straw B to a drying room for drying treatment, and then completing preparation.
The paper suction pipe manufactured in the first example and the second example is subjected to an experiment, 1, the paper suction pipe is cut, water, hot oil, milk, beverage and coffee media are dripped on the surface of the paper suction pipe, and the paper suction pipe is placed in a 60 ℃ oven for testing, whether the paper suction pipe penetrates the back surface within half an hour is observed, and whether the paper suction pipe is qualified is judged;
2. the straws prepared in examples one and two were tested for retention of the ratio of compressive strength to the original compressive strength after immersion in each medium for half an hour.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a not soft paper straw that does not scatter low migration of hot water of bubble which characterized in that: the paper suction pipe with the characteristics that the hot water does not soften and disperse and the migration is low comprises upper layer paper, middle layer paper and bottom layer paper, wherein a total coating is coated on the upper surface of the upper layer paper, the total coating is coated on the lower surface of the bottom layer paper, and the total coating is coated on the upper surface and the lower surface of the middle layer paper;
the overall coating includes a base coat and a top coat.
2. The paper drinking straw with low migration and without softening of the hot water in the bubble, according to claim 1, is characterized in that: the paper suction pipe with the function of ensuring that the foam hot water does not become soft, does not scatter and low in migration comprises upper layer paper, first middle layer paper, second middle layer paper and bottom layer paper, wherein a total coating is coated on the upper surface of the upper layer paper, a total coating is coated on the lower surface of the bottom layer paper, the total coating is coated on the upper surface and the lower surface of the first middle layer paper, and the total coating is coated on the lower surface of the second middle layer paper;
the overall coating includes a base coat and a top coat.
3. The method for preparing the paper straw with the characteristics of no softening, no scattering and low migration of the hot water bubbles according to claim 1, wherein the method comprises the following steps: the preparation method of the paper straw with the characteristics of no softening, no dispersion and low migration of the hot water in the foam comprises the following steps:
s1, uniformly coating the upper surface of the upper layer paper, the upper and lower surfaces of the middle layer paper (first middle layer paper), the lower surface of the second middle layer paper and the lower surface of the bottom layer paper with an anti-permeation coating A to form a softer bottom coating, wherein the coating frequency of the anti-permeation coating A is 1-2 times, and drying the paper coated with the bottom coating through a drying channel of drying equipment;
s2, coating the anti-penetration coating B on the surface of each piece of paper coated with the base coat obtained in the step S1 again to form a top coat, and drying and winding each piece of paper through a drying tunnel again;
s3, heating, pressing, rolling, cutting and piling up the paper sheets obtained in the S2 by paper suction pipe equipment to prepare a paper suction pipe A for later use;
s4, dipping 20-60% diluted anti-penetration coating B on the two ends of the paper straw A prepared in the step S3 through a water absorbing material, and pressing the two ends of the paper straw A to form a paper straw B;
s5, pushing the paper straw B to a drying room for drying treatment, and then completing preparation.
4. The method for preparing the paper straw with the advantages of no softening and no dispersion of the hot water in the bubbles and low migration according to claim 3 is characterized in that: the anti-permeation coating A is food-grade butylbenzene emulsion, food-grade anti-permeation acrylic acid emulsion with TG lower than 15 or EAA emulsion.
5. The method for preparing the paper straw with the advantages of no softening and no dispersion of the hot water in the bubbles and low migration according to claim 3 is characterized in that: the anti-permeation coating B is food-grade anti-permeation acrylic emulsion or EAA emulsion with TG higher than 30.
6. The paper drinking straw with low migration and without softening of the hot water in the bubble, according to claim 1, is characterized in that: the coating weight of the total coating is 5-20 g.
7. The method for preparing the paper straw with the characteristics of no softening, no scattering and low migration of the hot water bubbles according to claim 3, wherein the method comprises the following steps: and the top coating formed by the anti-penetration coating B in the S3 needs to be blown to below 60 ℃ by adding cold air before being wound after being dried.
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| CN202110630080.9A CN114619710A (en) | 2021-06-07 | 2021-06-07 | Preparation method of paper straw with characteristics of no softening, no dispersion and low migration of hot water in soaking |
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