CN102407632A - Novel wet paper towel bag composite film and preparation method thereof - Google Patents
Novel wet paper towel bag composite film and preparation method thereof Download PDFInfo
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- CN102407632A CN102407632A CN2011102078793A CN201110207879A CN102407632A CN 102407632 A CN102407632 A CN 102407632A CN 2011102078793 A CN2011102078793 A CN 2011102078793A CN 201110207879 A CN201110207879 A CN 201110207879A CN 102407632 A CN102407632 A CN 102407632A
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Abstract
The invention relates to a novel wet paper towel bag composite film, which comprises a surface layer and a bottom layer; the bottom surface of the surface layer is fixed with the upper surface of the bottom layer through a glue layer; and the glue layer is a quick-drying polyurethane polyalcohol adhesive. In the novel wet paper towel bag composite film, the surface layer and the bottom layer of the composite film are tightly bonded by taking the quick-drying polyurethane polyalcohol adhesive as the glue layer; after a bag body is formed, the surface layer and the bottom layer will not be separated from each other after being soaked with the moisture preservation liquid of the wet paper towel, and the completeness of the packaging bag of the wet paper towel is ensured; and after the composite film with the glue layer is specially cured, the obtained product is also wound on the central shaft, but the composite film is naturally recovered into plane and will not be bent like traditional composite film when being used by manufacturer, so that subsequent technology can be conveniently carried out and normal and convenient use of the wet paper towel is ensured.
Description
Technical field
The invention belongs to field of packaging material, especially a kind of novel hygenic towelette bag composite membrane and preparation method thereof.
The background technology hygenic towelette is the articles for daily use that people often use, and its package construction of depositing is as shown in Figure 1, comprises bag 1, periphery through being prone to out the easy opening 3 that trace is connected with bag, on bag, is bonded with surface area greater than the sheet of tearing that is prone to opening.During use, an end of sheet is torn in people's pulling, is pulled upwardly, and is bonding owing to tearing between sheet and the easy opening, so be prone to opening one logical pull-up, this moment, people can take out the hygenic towelette use in bag.
Existing bag is processed by composite membrane; This composite membrane is as shown in Figure 2, comprises top layer and bottom, and the top layer is fixed through glue-line and bottom; The process of this composite membrane is: various patterns are at first printed through the combined type intaglio press in the top layer; In compounding machine, be combined with each other through glue-line then, handle through curing process again, make finished product after separate machine cuts into after the material of certain-length is rolled up with bottom.As shown in Figure 3, the structure of finished product is: composite membrane 8 is wrapped on the central shaft 7, is convenient to depositing and transporting of composite membrane like this.
There are two problems in above-mentioned bag and composite membrane; 1. after the easy opening on the bag was torn, its peripheral composite membrane was immersed in the liquid that keeps hygenic towelette humidity, when using the glue-line of current material; The top layer of composite membrane and bottom are prone to throw off; Cause liquid to infiltrate in the bag, possibly cause the damage of bag, finally cause hygenic towelette to use.2. be wrapped on the central shaft after composite membrane processes, when finished product was transported to the use of hygenic towelette manufacturer, bending (as shown in Figure 4) can appear in composite membrane when following process; When serious even 40 ° radian occurs; Both be unfavorable for the production of bag, and people are when using, in case tear easy opening; Should be prone to opening can be crooked in bag, causes people to be inconvenient to take out hygenic towelette.
Summary of the invention
The objective of the invention is to overcome the weak point of prior art, provide do not ftracture, smooth a kind of animal and bird intestines slowly-releasing anthelmintic.
The technical scheme that the present invention adopts is:
A kind of novel hygenic towelette bag composite membrane comprises top layer and bottom, and the bottom surface on top layer and the upper surface of bottom are fixed through a glue-line, it is characterized in that: said glue-line uses quick-dry type polyurethane polyalcohol adhesive.
And the viscosity of said quick-dry type polyurethane polyalcohol adhesive is 6800～7200mPa.s/25 ℃.
And the peeling force after said top layer and bottom are compound is 70N/cm
2
And said top layer, bottom use PETG to belong to line style saturated polyester resin, polyethylene respectively.
Another object of the present invention provides a kind of preparation method of novel hygenic towelette bag composite membrane, and this method may further comprise the steps:
(1) top layer is through combined type intaglio press printed patterns; (2) top layer that prints in compounding machine with bottom through the compound composite membrane that makes of glue-line; (3) composite membrane is put into curing chamber and carry out maturation process, the product after (4) slaking makes finished product after the separate machine cutting;
Glue-line in the said step (2) uses quick-dry type polyurethane polyalcohol adhesive, and the viscosity of this quick-dry type polyurethane polyalcohol adhesive is 6800～7200mPa.s/25 ℃, and the peeling force after top layer and bottom are compound is 70N/cm
2
Maturation process in the said step (3) may further comprise the steps:
1. composite membrane is put into curing chamber and carry out the slaking first time, curing chamber adopts the form of ground heating, and indoor temperature is 48～52 ℃, slaking 235～245 minutes;
2. the composite membrane after the slaking for the first time takes out and places at normal temperatures cooling naturally;
3. again composite membrane is put into curing chamber and carry out the slaking second time, indoor temperature is 48～52 ℃, slaking 1170～1230 minutes;
4. the composite membrane after the slaking for the second time takes out to place to cool off naturally at normal temperatures and has promptly accomplished maturation process.
Advantage of the present invention and good effect are:
Among the present invention, pass through quick-dry type polyurethane polyalcohol adhesive between the top layer of composite membrane and the bottom, top layer and bottom are closely bonded as glue-line; After processing bag, not can because of hygenic towelette preserve moisture liquid immersion and delamination has guaranteed the complete of wet facial tissue packing bag; And the composite membrane that has this glue-line is after special maturation process, though the finished product that makes also be wrapped on the axis, when manufacturer uses; Composite membrane reverts to the plane naturally; Can not look like the conventional composite film and crooked phenomenon occur, make things convenient for the processing of subsequent technique, guarantee normal, the convenient practical hygenic towelette of people.
Description of drawings
Fig. 1 is the structural representation of hygenic towelette;
Fig. 2 is the cross section of composite membrane;
Fig. 3 is the structural representation of composite membrane finished product;
Buckling phenomenon when Fig. 4 is the use of conventional composite film.
The specific embodiment
Below in conjunction with embodiment, the present invention is further specified, following embodiment is illustrative, is not determinate, can not limit protection scope of the present invention with following embodiment.
A kind of novel hygenic towelette bag composite membrane; Shown in Fig. 1～4; Comprise top layer 4 and bottom 6, the bottom surface on top layer and the upper surface of bottom are fixing through a glue-line 5, and innovation of the present invention is: above-mentioned glue-line uses quick-dry type polyurethane polyalcohol adhesive; The viscosity of this quick-dry type polyurethane polyalcohol adhesive is 6800～7200mPa.s/25 ℃, and the peeling force after top layer and bottom are compound is 70N/cm
2The polyurethane polyalcohol adhesive PP-9690V (quick-dry type) that this quick-dry type polyurethane polyalcohol adhesive adopts sky, Tianjin epoxy-polyurethane Co., Ltd (Mitsui) to produce, its composition comprises 35% ethyl acetate and 65% polyurethane polyol.Top layer in the composite membrane, bottom use PETG to belong to line style saturated polyester resin, polyethylene respectively.Closely bond between top layer, glue-line and the bottom, very firmly, after processing bag, not can because of hygenic towelette preserve moisture liquid immersion and delamination has guaranteed the complete of wet facial tissue packing bag.
The preparation method of above-mentioned novel hygenic towelette bag composite membrane may further comprise the steps:
(1) top layer is through combined type intaglio press printed patterns;
When the top layer process was stained with the intaglio plate of printing ink, the pressure ink roller of intaglio plate top was transferred on the top layer printing ink, and drying air box carries out drying to the top layer then, accomplishes printing of the same colour.Get into preface printing of the same colour down again, after all colours is completed for printing, the top layer is gathered into axle by material collecting device.
(2) top layer that prints in compounding machine with bottom through the compound composite membrane that makes of glue-line;
When the top layer process is stained with the anilox roll of glue; The dandy roll of anilox roll top is transferred on the print film glue; Drying air box carries out drying (temperature is respectively 60 degree, 70 degree, 80 degree) to die, and dry top layer, back and bottom are gathered into axle by material collecting device after 80 degree heat drums are pressed into one.
Glue uses quick-dry type polyurethane polyalcohol adhesive, and the viscosity of this quick-dry type polyurethane polyalcohol adhesive is 6800～7200mPa.s/25 ℃, and the peeling force after top layer and bottom are compound is 70N/cm
2
(3) composite membrane is put into curing chamber and carry out maturation process;
Maturation process may further comprise the steps:
1. composite membrane is put into curing chamber and carry out the slaking first time, curing chamber adopts the form of ground heating, and indoor temperature is 48～52 ℃, slaking 235～245 minutes;
2. the composite membrane after the slaking for the first time takes out and places at normal temperatures cooling naturally;
3. again composite membrane is put into curing chamber and carry out the slaking second time, indoor temperature is 48～52 ℃, slaking 1170～1230 minutes;
4. the composite membrane after the slaking for the second time takes out to place to cool off naturally at normal temperatures and has promptly accomplished maturation process.
(4) product after the slaking makes finished product after the separate machine cutting;
Discharging device is cut by cutter before film is sent to material collecting device through deflector roll on request, finally becomes axle by the material collecting device rewinding, makes finished product.
Among the present invention, pass through quick-dry type polyurethane polyalcohol adhesive between the top layer of composite membrane and the bottom, top layer and bottom are closely bonded as glue-line; After special maturation process, though the finished product that makes also be wrapped on the axis, when manufacturer uses; Composite membrane reverts to straight naturally, can not look like the conventional composite film and crooked phenomenon occur, and the qualification rate of composite membrane product has reached 99%; Be superior to traditionally 75～85% greatly, made things convenient for the processing of subsequent technique, guaranteed normal, the convenient practical hygenic towelette of people; The compound national standard of product detects in department through product quality supervision detection technique.
Claims (5)
1. a novel hygenic towelette bag composite membrane comprises top layer and bottom, and the bottom surface on top layer and the upper surface of bottom are fixed through a glue-line, it is characterized in that: said glue-line uses quick-dry type polyurethane polyalcohol adhesive.
2. a kind of novel hygenic towelette bag composite membrane according to claim 1, it is characterized in that: the viscosity of said quick-dry type polyurethane polyalcohol adhesive is 6800～7200mPa.s/25 ℃.
3. a kind of novel hygenic towelette bag composite membrane according to claim 1, it is characterized in that: the peeling force after said top layer and bottom are compound is 70N/cm
2
4. a kind of novel hygenic towelette bag composite membrane according to claim 1, it is characterized in that: said top layer, bottom use PETG to belong to line style saturated polyester resin, polyethylene respectively.
5. the preparation method of a kind of novel hygenic towelette bag composite membrane according to claim 1 is characterized in that: may further comprise the steps:
(1) top layer is through combined type intaglio press printed patterns; (2) top layer that prints in compounding machine with bottom through the compound composite membrane that makes of glue-line; (3) composite membrane is put into curing chamber and carry out maturation process, the product after (4) slaking makes finished product after the separate machine cutting;
Glue-line in the said step (2) uses quick-dry type polyurethane polyalcohol adhesive, and the viscosity of this quick-dry type polyurethane polyalcohol adhesive is 6800～7200mPa.s/25 ℃, and the peeling force after top layer and bottom are compound is 70N/cm
2
Maturation process in the said step (3) may further comprise the steps:
1. composite membrane is put into curing chamber and carry out the slaking first time, curing chamber adopts the form of ground heating, and indoor temperature is 48～52 ℃, slaking 235～245 minutes;
2. the composite membrane after the slaking for the first time takes out and places at normal temperatures cooling naturally;
3. again composite membrane is put into curing chamber and carry out the slaking second time, indoor temperature is 48～52 ℃, slaking 1170～1230 minutes;
4. the composite membrane after the slaking for the second time takes out to place to cool off naturally at normal temperatures and has promptly accomplished maturation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102078793A CN102407632A (en) | 2011-07-25 | 2011-07-25 | Novel wet paper towel bag composite film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102078793A CN102407632A (en) | 2011-07-25 | 2011-07-25 | Novel wet paper towel bag composite film and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102407632A true CN102407632A (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102078793A Pending CN102407632A (en) | 2011-07-25 | 2011-07-25 | Novel wet paper towel bag composite film and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013156849A1 (en) * | 2012-04-21 | 2013-10-24 | Nourishco Beverages Ltd. | A laminate for producing flexible pouch for storing water |
| WO2015125154A1 (en) * | 2014-02-24 | 2015-08-27 | Ashok Chaturvedi | Polymeric laminate for potable water pouch and pouch made thereof |
| CN105151491A (en) * | 2015-08-05 | 2015-12-16 | 安徽顺彤包装材料有限公司 | Anti-microbial moisture holding wet tissue bag and processing method thereof |
| CN107599257A (en) * | 2017-09-14 | 2018-01-19 | 广德美好包装科技有限公司 | A kind of curing process for food pack printing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1355268A (en) * | 2000-11-23 | 2002-06-26 | 华东理工大学 | High-adhesion polyurethane adhesive resisting digestion |
| CN1994729A (en) * | 2006-12-13 | 2007-07-11 | 黄山永新股份有限公司 | Method for producing composite membrane |
| CN101934620A (en) * | 2010-07-27 | 2011-01-05 | 河北永新包装有限公司 | Composite film with local pearl effect and preparation method thereof |
-
2011
- 2011-07-25 CN CN2011102078793A patent/CN102407632A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1355268A (en) * | 2000-11-23 | 2002-06-26 | 华东理工大学 | High-adhesion polyurethane adhesive resisting digestion |
| CN1994729A (en) * | 2006-12-13 | 2007-07-11 | 黄山永新股份有限公司 | Method for producing composite membrane |
| CN101934620A (en) * | 2010-07-27 | 2011-01-05 | 河北永新包装有限公司 | Composite film with local pearl effect and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013156849A1 (en) * | 2012-04-21 | 2013-10-24 | Nourishco Beverages Ltd. | A laminate for producing flexible pouch for storing water |
| WO2015125154A1 (en) * | 2014-02-24 | 2015-08-27 | Ashok Chaturvedi | Polymeric laminate for potable water pouch and pouch made thereof |
| CN105151491A (en) * | 2015-08-05 | 2015-12-16 | 安徽顺彤包装材料有限公司 | Anti-microbial moisture holding wet tissue bag and processing method thereof |
| CN107599257A (en) * | 2017-09-14 | 2018-01-19 | 广德美好包装科技有限公司 | A kind of curing process for food pack printing |
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Application publication date: 20120411 |