CN102529172A - Paper core and manufacturing method thereof as well as rolled paper with paper core - Google Patents
Paper core and manufacturing method thereof as well as rolled paper with paper core Download PDFInfo
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- CN102529172A CN102529172A CN2011104176428A CN201110417642A CN102529172A CN 102529172 A CN102529172 A CN 102529172A CN 2011104176428 A CN2011104176428 A CN 2011104176428A CN 201110417642 A CN201110417642 A CN 201110417642A CN 102529172 A CN102529172 A CN 102529172A
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- cardboard strip
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Abstract
The invention discloses a paper core comprising a cylindrical side wall, a first end part and a second end part, wherein the first end part and the second end part are arranged face to face to form two ends of the cylindrical side wall, and a virtual tangent line extending from the first end part to the second end part is formed on the cylindrical side wall. The invention further provides a manufacturing method of the paper core and a rolled paper with the paper core. Compared with the prior art, in the paper core and the manufacturing method of the paper core as well as the rolled paper using the paper core provided by the invention, as the virtual tangent line which is easy to be torn down is formed on the side wall of the paper core, the paper core can be easy to be torn down along the virtual tangent line when the rolled paper is used by a user so that the paper core is easy to be taken out from the rolled paper.
Description
Technical field
The present invention relates to pulp technology for making paper, particularly a kind of paper core and preparation method thereof and the roll web that uses this paper core.
Background technology
At present, roll web in use, much human is liked the paper core of roll web is taken out, and roll web is packed in the paper web, uses from middle paper extraction then.Yet; Present roll web on the market; Its paper tape all is being wound on the paper core tightly mostly, and for less users of strength such as old man, women or children, wanting smoothly paper core to be released from coil paper is that very big difficulty is arranged; Even paper core is released in coil paper the most at last, the internal layer coil paper of roll web also can be torn distortion or damaged.
Summary of the invention
In view of this, provide a kind of can solve the roll web paper core be difficult to peel off taking-up a difficult problem paper core and preparation method thereof and use that the roll web of this paper core is real to be necessity.
A kind of paper core, it comprises cylindrical sidewall, first end and the second end, this first end and this second end are oppositely arranged to form the two ends of this cylindrical sidewall, on this cylindrical sidewall, are formed with the virtual tangent that extends to the second end from this first end.
A kind of preparation method of paper core, it comprises the steps: to provide a prefabricated paper core, and it comprises prefabricated sidewall, first end and the second end, and wherein this first end and this second end are oppositely arranged to constitute two ends of this prefabricated paper core; This prefabricated sidewall is carried out void cut processing, on this prefabricated sidewall, to form the virtual tangent that extends to the second end from this first end.
A kind of preparation method of paper core, it comprises the steps: to provide a prefabricated cardboard strip, on this prefabricated cardboard strip, is formed with the virtual tangent that extends along the length direction of this prefabricated cardboard strip; Should prefabricated cardboard strip carry out screw winding around an axis to form tube.
A kind of preparation method of paper core; It comprises the steps: to provide one first cardboard strip and one second cardboard strip; This first cardboard strip has along first superimposed district that its length direction extends and the first non-superimposed district that extends in parallel with this first superimposed district; In this first non-superimposed district, be formed with the virtual tangent that extends along its length direction, this second cardboard strip has along second superimposed district that its length direction extends and the second non-superimposed district that extends in parallel with this second superimposed district; First superimposed district of this first cardboard strip and the second superimposed district of this second cardboard strip are fixed together along its length direction is range upon range of, and second cardboard strip is parallel is superimposed and staggered so that this first cardboard strip is with this; This parallel first cardboard strip of being superimposed and staggered and second cardboard strip are carried out screw winding around an axis; In the process of screw winding, make first non-superimposed district of this first cardboard strip and the second non-superimposed district of this second cardboard strip be superimposed with each other fixing; Thereby forming with this axis is the tube of central shaft; This tube has first end and opposite second end, and is formed with around this axis the virtual tangent that is spirally extended to this second end from this first end on the sidewall of this tube.
A kind of preparation method of paper core; It comprises the steps: to provide one the 3rd cardboard strip and one the 4th cardboard strip; Wherein, The 3rd cardboard strip has along the 3rd superimposed district that its length direction extends and the 3rd non-superimposed district that extends in parallel with the 3rd superimposed district, in the 3rd non-superimposed district, is formed with the virtual tangent that extends along its length direction, and the width in the width of the 4th cardboard strip and the 3rd superimposed district is suitable; Along the length bearing of trend in the 3rd superimposed district of the 3rd cardboard strip, be superimposed with each other the 3rd superimposed district of the 4th cardboard strip and the 3rd cardboard strip fixing; This 3rd cardboard strip and the 4th cardboard strip that is fixed together that be superimposed with each other is carried out screw winding around an axis; In the process of screw winding, make the 3rd superimposed district and the 3rd non-superimposed district that are superimposed with the 4th cardboard strip superimposed fixing; Thereby forming with this axis is the tube of central shaft; It has first end and opposite second end, and is formed with around this axis the virtual tangent that is spirally extended to this second end from this first end on the sidewall of this tube.
A kind of roll web; It comprises paper core and is wound on the paper on this paper core; This paper core comprises that cylindrical sidewall, this cylindrical sidewall have first end and the second end that is oppositely arranged, and are formed with the virtual tangent that extends to this second end around the axis of this paper core from this first end on this cylindrical sidewall.
Compared with prior art; This paper core provided by the present invention and preparation method thereof and the roll web that uses this paper core; Owing on the sidewall of paper core, be formed with the virtual tangent that is easy to tear, therefore, the user is in the process of using this roll web; The user can tear paper core along this virtual tangent easily, thereby can easily paper core be extracted from roll web.
Description of drawings
Fig. 1 is the schematic perspective view of the paper core that provides of first embodiment of the invention.
Fig. 2 is the schematic perspective view of the prefabricated paper core that provides of second embodiment of the invention.
Fig. 3 be to Fig. 2 provide prefabricated paper core carry out void cut handle and reel after schematic perspective view.
Fig. 4 is the sketch map of employed prefabricated cardboard strip in the third embodiment of the invention.
The sketch map of the tube that Fig. 5 is to use prefabricated cardboard strip shown in Figure 4 to reel to form.
Fig. 6 is the structural relation sketch map of employed first cardboard strip and second cardboard strip in the four embodiment of the invention.
Fig. 7 is to use first cardboard strip and second cardboard strip among Fig. 6 to curl and makes the sketch map of paper core.
Fig. 8 is the structural relation sketch map of employed the 3rd cardboard strip and the 4th cardboard strip in the fifth embodiment of the invention.
Fig. 9 is to use the 3rd cardboard strip and the 4th cardboard strip among Fig. 8 to curl and makes the sketch map of paper core.
Figure 10 is the structural representation of the roll web that provides of sixth embodiment of the invention.
Figure 11 is the vertical view of roll web shown in Figure 10.
The main element symbol description
| |
100，1100 |
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10，1101 |
| |
11 |
| |
12 |
| |
20，202，1102 |
| The |
30，203，1103 |
| Internal |
40 |
| |
50 |
| |
60，230，330，413，713，1104 |
| Groove | 70，240，430，730，1105 |
| Prefabricated |
200 |
| |
201 |
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300 |
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320 |
| |
410 |
| The first |
411 |
| The first |
412 |
| |
420 |
| The second |
421 |
| The second |
422 |
| Tube | 350，500，800 |
| The |
710 |
| The 3rd superimposed |
711 |
| The 3rd non-superimposed |
712 |
| The |
720 |
| |
1000 |
| |
1200 |
The following specific embodiment will combine above-mentioned accompanying drawing to further specify the present invention.
The specific embodiment
See also shown in Figure 1, the paper core 100 that first embodiment of the invention provided, it comprises cylindrical sidewall 10, first end 20 and the second end 30, wherein, this first end 20 is oppositely arranged with the axis of this second end 30 along this paper core 100.
This cylindrical sidewall 10 has madial wall 11 and the lateral wall 12 that is oppositely arranged, and wherein this madial wall 11 is near the axis of this paper core 100, and this lateral wall 12 is away from the axis of this paper core 100.
In this embodiment; Cylindrical sidewall 10 comprises range upon range of internal layer paperboard layer 40 and outer paperboard layer 50 each other; This internal layer paperboard layer 40 forms these madial walls 11, and this skin paperboard layer 50 forms these lateral walls 12, and this internal layer paperboard layer 40 and this skin paperboard layer 50 are superimposed with each other through applying glue.
Understandable, in the present invention, this cylindrical sidewall 10 can be that to be made up of the individual layer paperboard also can be to be made up of the multilayer paperboard.
Need to prove; The paperboard of this cylindrical sidewall 10 of employed formation does not have certain restriction to its basic weight (being also referred to as grammes per square metre) in this embodiment; That is to say that the paperboard that is adopted in this embodiment can be any paper that can be used for making paper core.
On this cylindrical sidewall 10, be formed with the virtual tangent 60 that extends to this second end 30 from this first end 20.
Preferably, the dotted portion of this virtual tangent 60 runs through this cylindrical sidewall 10.
Preferably, this virtual tangent 60 is spirally extended to this second end 30 from this first end 20.
Understandable, when this cylindrical sidewall 10 was made up of the multilayer paperboard, the dotted portion of this virtual tangent 60 ran through the paperboard of one deck at least of this cylindrical sidewall 10 at least.
Need to prove; In the present invention; Be formed on the so-called virtual tangent 60 on this cylindrical sidewall 10; Wherein its dotted portion shows as hole spaced apart on this cylindrical sidewall 10, and its solid line part then shows as the sidewall between two holes on this cylindrical sidewall 10, and above-mentioned alternatively distributed hole and sidewall have just formed this virtual tangent 60 on this cylindrical sidewall 10.
Preferably, on cylindrical sidewall 10, further be formed with the groove 70 that is spirally extended to this second end 30 from this first end 20, this virtual tangent 60 is formed on the bottom of this groove 70 and along with this groove 70 spirals extend.
Owing to be formed with the virtual tangent 60 that extends to this second end 30 from this first end 20 on this cylindrical sidewall 10; And for the sidewall of whole paper core 100; The place that this virtual tangent 60 is passed by is torn the most easily; Therefore after these paper core 100 uses that first embodiment of the invention provided are in roll web; If consumer wants takes out this paper core 100 from roll web, its needs are along being formed on these paper core 100 sidewalls that virtual tangent 60 just can be torn this paper core 100 easily and from chart drum, this paper core 100 being taken out.Further; On this cylindrical sidewall 10, further be formed with the groove 70 that is spirally extended to this second end 30 from this first end 20; And this virtual tangent 60 is formed on the bottom of this groove 70 and when extending along with this groove 70 spirals; 60 thickness through this cylindrical sidewall 10 of part of this virtual tangent will be more thin, helps so more along this virtual tangent 60 this paper core 100 to be torn.
See also Fig. 2 and shown in Figure 3, second embodiment of the invention provides first kind of preparation method of making this paper core 100, and it comprises the steps.
(1) a prefabricated paper core 200 is provided, it comprises prefabricated sidewall 201, first end 202 and the second end 203, and wherein this first end 202 is oppositely arranged to constitute two ends of this prefabricated paper core 200 with this second end 203.
Preferably, this prefabricated paper core 200 is to be curled by individual layer paperboard 220 to form.
Understandable, this prefabricated paper core 200 also can be formed by the multilayer card curl.
(2) this prefabricated sidewall 201 is carried out void and cut processing, on this prefabricated sidewall 201, to form the virtual tangent 230 that is spirally extended to the second end 203 from this first end 202.
In the present invention, can adopt any void to cut equipment and come that this prefabricated sidewall 201 is carried out void and cut processing, as long as can on this prefabricated sidewall 201, form this virtual tangent 230.
Certainly, this virtual tangent 230 that on this prefabricated sidewall 201, forms is not limited to extend to the second end 203 with the mode of spiral by this first end 202, and it also can be that straight line or curve mode extend.
(3) cardboard strip 300 is provided, with these cardboard strip 300 winding ups on this prefabricated sidewall 201.
In this embodiment, this cardboard strip 300 is rolled on this prefabricated sidewall 201 in the extension track helical coil on this prefabricated sidewall 201 along this virtual tangent 230, and this virtual tangent 230 is exposed on this prefabricated sidewall 201.
Further; After these cardboard strip 300 helical coil are rolled on this prefabricated sidewall 201; Can be on this prefabricated sidewall 201 form and being spirally extended to the groove 240 that this second end 203 is a bottom land with this prefabricated sidewall 201 from this first end 202, this virtual tangent 230 is formed on the bottom land of this groove 240 and along with these groove 240 spirals extend.
In this embodiment; Before on the prefabricated sidewall 201 that these cardboard strip 300 helical coil is rolled in this prefabricated paper core 200; Coating one deck stickum on the prefabricated sidewall 201 of this cardboard strip 300 or this prefabricated paper core 200 at first is so that these cardboard strip 300 winding ups can cement in together with this prefabricated sidewall 201 after to this prefabricated sidewall 201.
Understandable, this cardboard strip 300 can be that to be made up of the individual layer paperboard also can be that the multilayer card quires closes and forms.
Understandable; The fixed form of this cardboard strip 300 and this prefabricated sidewall 201 is not limited to the mode that adopts stickum bonding, as long as can make the cardboard strip 300 of winding up on this prefabricated sidewall 201 can be applied to the present invention with the mode that this prefabricated sidewall 201 is fixed together.
Understandable, after these cardboard strip 300 coilings are fixed on this prefabricated lateral wall, can come according to different needs it is sheared the paper core that has different length with formation.
Need to prove; In this embodiment; One of purpose of on this prefabricated sidewall 201, twining this cardboard strip 300 be for the thickness that increases this prefabricated sidewall 201 so that it has good intensity, still, when this prefabricated sidewall 201 has had enough thickness; Perhaps when this prefabricated sidewall 201 can satisfy the production demand of roll web, the step of on this prefabricated sidewall 201, twining this cardboard strip 300 also can be omitted.
Please in the lump referring to Fig. 4 and Fig. 5, third embodiment of the invention provides second kind of preparation method of this paper core 100, and it comprises the steps.
(1) a prefabricated cardboard strip 320 is provided, on this prefabricated cardboard strip 320, is formed with the virtual tangent 330 that extends along the length direction of this prefabricated cardboard strip 320.
In the present invention, this prefabricated cardboard strip 320 can make void cut equipment on the generic card paper slip, to form virtual tangent and make.
Understandable, this prefabricated cardboard strip 320 can be that the multilayer card paper slip also can be the individual layer cardboard strip.
(2) should prefabricated cardboard strip 320 carry out screw winding around an axis to form tube 350.
Preferably, this prefabricated cardboard strip 320 is in winding process, and this virtual tangent 330 is exposed to the outside all the time.
In this embodiment, this prefabricated cardboard strip 320 is to be centered around on the column sidewall of (figure does not show) to carry out screw winding to form this tube 350.
Since on this prefabricated cardboard strip 320, be formed with this virtual tangent 330, therefore, along with the formation of this tube 350; This virtual tangent 330 will be formed on the sidewall of this tube 350; Because this virtual tangent 330 runs through this prefabricated cardboard strip 320, therefore, form this tube 350 after; With respect to the whole sidewall of this tube 350, the zone ratio of 330 processes of this virtual tangent is easier to tear.
Further; In winding process, when all the time this virtual tangent 330 being exposed to the outside, after this tube 350 forms; The dotted portion of this virtual tangent 330 will run through the whole sidewall of this tube 350, makes the zone of 330 processes of this virtual tangent be more prone to torn.
(3) according to predetermined length requirement, this tube 350 is cut into the paper core with certain-length.
Please in the lump referring to Fig. 6 and Fig. 7, four embodiment of the invention provides the third preparation method of this paper core 100, and it comprises the steps.
(1) first cardboard strip 410 and second cardboard strip 420 are provided; This first cardboard strip 410 has along first superimposed district 411 that its length direction extends and the first non-superimposed district 412 that extends in parallel with this first superimposed district 411; In this first non-superimposed district 412, be formed with the virtual tangent 413 that extends along its length direction, this second cardboard strip 420 has along second superimposed district 421 that its length direction extends and the second non-superimposed district 422 that extends in parallel with this second superimposed district 421.
Understandable, this first cardboard strip 410 and second cardboard strip 420 can be that the individual layer paperboard also can be to be closed by the multilayer card quires to form.
In this embodiment, this virtual tangent 413 roughly is positioned at the middle part in this first non-superimposed district 412.
Understandable; In the present invention; This virtual tangent 413 can coincide with the line of demarcation in this first non-superimposed district 412 with the first superimposed district 411 of this first cardboard strip 410, also can be positioned at this first non-superimposed district 412 and does not coincide with the line of demarcation in this first superimposed district 411 and this first non-superimposed district 412.
(2) first superimposed district 411 of this first cardboard strip 410 and the second superimposed district 421 of this second cardboard strip 420 are fixed together along its length direction is range upon range of, so that this first cardboard strip 410 and these second cardboard strip, 420 parallel being superimposed and staggered.
In this embodiment, the first superimposed district 411 of this first cardboard strip 410 and the second superimposed district 421 of this second cardboard strip 420 are fixed together through the mode of applying glue is range upon range of each other.
(3) will this parallel first cardboard strip 410 of being superimposed and staggered and second cardboard strip 420 carry out screw winding around an axis; The first non-superimposed district 412 that in the process of screw winding, makes this first cardboard strip 410 is superimposed with each other with the second non-superimposed district 422 of this second cardboard strip 420 and is fixed together, and is the tube 500 of central shaft thereby form with this axis.
Preferably, first non-superimposed district 412 of this first cardboard strip 410 and the second non-superimposed district 422 of this second cardboard strip 420 are in the process of being superimposed with each other, and the virtual tangents 413 in this first non-superimposed district 412 are exposed to the outside all the time.
In this embodiment; This parallel first cardboard strip 410 of being superimposed and staggered and second cardboard strip 420 are to be centered around on the column sidewall of (figure does not show) to carry out screw winding; And this first cardboard strip 410 is near this column, and this second cardboard strip 420 is away from this column.
Because this virtual tangent 413 is formed on the first non-superimposed district 412 of this first cardboard strip 410; Therefore, after forming this tube 500, this virtual tangent 413 can be formed on the sidewall of this tube 500; And; Because this virtual tangent runs through this first non-superimposed district 412, therefore with respect to the whole sidewall of this tube 500, tear the most easily in the zone that this virtual tangent 413 is passed by.
Further; In the second non-superimposed district 422 of the first non-superimposed district 412 of this first cardboard strip 410 and this second cardboard strip 420 is superimposed with each other process; When the virtual tangent 413 in this first non-superimposed district 412 is exposed to the outside all the time; After this tube 500 formed, the dotted portion of this virtual tangent 413 will run through the whole sidewall of this tube 500, makes the zone of 413 processes of this virtual tangent be more prone to torn.
Preferably; In this embodiment; Carry out in the process of screw winding at this parallel first cardboard strip 410 of being superimposed and staggered and second cardboard strip 420 sidewall around column; Virtual tangent 413 in guaranteeing this first non-superimposed district 412 is exposed under the outside prerequisite all the time, makes the first non-superimposed district 412 of this first cardboard strip 410 superimposed with the second non-superimposed district, 422 parts of this second cardboard strip 420, like this; After forming tube 500; On the lateral wall of this tube 500, along a side of this first non-superimposed district 412 and the superimposed line in this second non-superimposed district 422 spiral helicine groove 430 that will to form the first non-superimposed district 412 with this first cardboard strip 410 be bottom land, this virtual tangent 413 then can be positioned at the bottom land of this groove 430.Coiling has in this way further reduced by 413 thickness through part tube 500 sidewalls of this virtual tangent, helps more along this virtual tangent 413 this tube 500 being torn.
(4) according to predetermined length requirement, this tube 500 is cut into the paper core with certain-length.
Like Fig. 8 and shown in Figure 9, fifth embodiment of the invention provides the 4th kind of preparation method of this paper core 100, and it comprises the steps.
(1) the 3rd cardboard strip 710 and the 4th cardboard strip 720 are provided; Wherein, The 3rd cardboard strip 710 has along the 3rd superimposed district 711 that its length direction extends and the 3rd non-superimposed district 712 that extends in parallel with the 3rd superimposed district 711; The width in width and the 3rd superimposed district 711 that in the 3rd non-superimposed district 712, is formed with virtual tangent 713, the four cardboard strip 720 of extending along its length direction is suitable.
Understandable, the 3rd cardboard strip 710 can be that the individual layer paperboard also can be the multilayer paperboard with the 4th cardboard strip 720.
In this embodiment, this virtual tangent 713 roughly is positioned at the middle part in the 3rd superimposed district 711.
Understandable; In the present invention; This virtual tangent 713 can coincide with the line of demarcation in the 3rd non-superimposed district 712 with the 3rd superimposed district 711 of the 3rd cardboard strip 710, also can be positioned at the 3rd superimposed district 711 and does not coincide with the 3rd superimposed district 711 of the 3rd cardboard strip 710 and the line of demarcation in the 3rd non-superimposed district 712.
(2), be superimposed with each other the 3rd superimposed district 711 of the 4th cardboard strip 720 and the 3rd cardboard strip 710 fixing along the length bearing of trend in the 3rd superimposed district 711 of the 3rd cardboard strip 710.
In this embodiment, the 4th cardboard strip 720 is through mutual range upon range of being fixed together of the mode of applying glue with the 3rd superimposed district 711 of the 3rd cardboard strip 710.
(3) this 3rd cardboard strip 710 and the 4th cardboard strip 720 that is fixed together that be superimposed with each other is carried out screw winding around an axis; In the process of screw winding, making the 3rd superimposed district 711 and the 3rd non-superimposed district 712 superimposed fixing that are superimposed with the 4th cardboard strip 720 on the 3rd cardboard strip 710, is the tube 800 of central shaft thereby form with this axis.
Preferably, in the 3rd superimposed district 711 and the 3rd non-superimposed district 712 superimposed fixation procedure, the virtual tangents 713 in the 3rd non-superimposed district 712 are exposed to the outside all the time in lamination process.
Understandable, this be superimposed with each other the 3rd cardboard strip 710 that is fixed together and the 4th cardboard strip 720 are to be centered around on the sidewall of column to carry out screw winding.
Because this virtual tangent 713 is formed on the 3rd non-superimposed district 712; Therefore, after forming this tube 800, this virtual tangent 713 can be formed on the sidewall of this tube 500; And; Because this virtual tangent runs through the 3rd non-superimposed district 712, therefore with respect to the whole sidewall of this tube 800, tear the most easily in the zone that this virtual tangent 713 is passed by.
Further; In the process that the 3rd superimposed district 711 that is superimposed with the 4th cardboard strip 720 and the 3rd non-superimposed district 712 are superimposed with each other; When the virtual tangent 713 in the 3rd non-superimposed district 712 is exposed to the outside; Formation along with this tube 800; This virtual tangent 713 will appear on the sidewall of this tube 800 along a side of the 3rd superimposed district 711 and the superimposed line in the 3rd non-superimposed district 712 and run through the whole sidewall of this tube 800 with spiral helicine form, therefore make the zone of 713 processes of this virtual tangent be more prone to torn.
Same; In this embodiment; The sidewall that is centered around column in this be superimposed with each other the 3rd cardboard strip 710 that is fixed together and the 4th cardboard strip 720 carries out in the process of screw winding; Virtual tangent 713 in guaranteeing the 3rd non-superimposed district 712 is exposed under the outside prerequisite all the time, makes the 3rd superimposed district 711 and the 3rd non-superimposed district 712 parts superimposed fixing, like this; After forming tube 800; On the lateral wall of this tube 800, along a side of the 3rd superimposed district 711 and the superimposed line in the 3rd non-superimposed district 712 spiral helicine groove 730 that will to form with the 3rd non-superimposed district 712 be bottom land, this virtual tangent 713 then can be positioned at the bottom land of this groove 730.Like this, further reduced by 713 thickness of this virtual tangent, helped more this tube 800 being torn along this virtual tangent 713 through part tube 800 sidewalls.
(4) according to predetermined length requirement, this tube 800 is cut into the paper core with certain-length.
Like Figure 10 and shown in Figure 11, sixth embodiment of the invention also provides a kind of roll web 1000, and it comprises paper core 1100 and is wound on the paper 1200 on this paper core 1100.
Preferably, the dotted portion of this virtual tangent 1104 runs through this cylindrical sidewall 1101.
Preferably, this virtual tangent 1104 is spirally extended to this second end 1103 from this first end 1102.
Further, on this cylindrical sidewall 1101, be formed with the groove 1105 that extends to this second end 1103 from this first end 1102 super helixs, this virtual tangent 1104 is formed on the bottom of this groove 1105 and along with these groove 1105 spirals extend.
Understandable, the paper 1200 that is wound on this paper core 1100 can be that paper for daily use also can be the paper that can be used in other occasion, for example employed printing paper of cashier etc.
Compared with prior art; This paper core provided by the present invention and preparation method thereof and the roll web that uses this paper core; Owing on the sidewall of paper core, be formed with the virtual tangent that is easy to tear, therefore, the user is in the process of using this roll web; The user can tear paper core along this virtual tangent easily, thereby can easily paper core be extracted from roll web.
In addition, those skilled in the art also can do other variation in spirit of the present invention.So these all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.
Claims (28)
1. paper core; It comprises cylindrical sidewall, first end and the second end; This first end and this second end are oppositely arranged to form the two ends of this cylindrical sidewall, it is characterized in that: on this cylindrical sidewall, be formed with the virtual tangent that extends to the second end from this first end.
2. paper core as claimed in claim 1; It is characterized in that: this cylindrical sidewall comprises madial wall and lateral wall; Wherein, This madial wall is near the axis of this paper core, and this lateral wall is away from the axis of this paper core, and this virtual tangent is formed on this madial wall and its dotted portion runs through this madial wall.
3. paper core as claimed in claim 1; It is characterized in that: this cylindrical sidewall comprises madial wall and lateral wall; Wherein, This madial wall is near the axis of this paper core, and this lateral wall is away from the axis of this paper core, and this virtual tangent is formed on this lateral wall and its dotted portion runs through this lateral wall.
4. paper core as claimed in claim 1 is characterized in that: the dotted portion of this virtual tangent runs through this cylindrical sidewall.
5. like each described paper core of claim 1 to 4, it is characterized in that: this virtual tangent is spirally extended to the second end from this first end.
6. paper core as claimed in claim 5 is characterized in that: be formed with the groove that is spirally extended to the second end from this first end on this cylindrical sidewall, this virtual tangent is formed at the bottom of this groove.
7. the preparation method of a paper core, it comprises the steps:
One prefabricated paper core is provided, and it comprises prefabricated sidewall, first end and the second end, and wherein this first end and this second end are oppositely arranged to constitute two ends of this prefabricated paper core;
This prefabricated sidewall is carried out void cut processing, on this prefabricated sidewall, to form the virtual tangent that extends to the second end from this first end.
8. the preparation method of paper core as claimed in claim 7, it is characterized in that: this virtual tangent is spirally extended to the second end from this first end.
9. the preparation method of paper core as claimed in claim 7 is characterized in that: this prefabricated paper core is curled by the individual layer paperboard and forms.
10. the preparation method of paper core as claimed in claim 7, it is characterized in that: this prefabricated paper core is formed by the multilayer card curl.
11. the preparation method of paper core as claimed in claim 8; It is characterized in that: in that prefabricated sidewall carries out further comprising after void is cut processing and uses a cardboard strip this prefabricated sidewall to be carried out the step of spiral winding up along the bearing of trend of this virtual tangent to this; In this winding up process, make this virtual tangent be exposed to the outside all the time.
12. the preparation method of paper core as claimed in claim 11; It is characterized in that: in this cardboard strip after prefabricated sidewall licks to this; On this prefabricated sidewall, formed this first end certainly be spirally extended to this second end with this prefabricated lateral wall groove that is the end, this virtual tangent is formed on the bottom of this groove.
13. the preparation method of paper core as claimed in claim 11 is characterized in that: this cardboard strip cements on the prefabricated lateral wall of this prefabricated paper core through the mode of applying glue.
14. the preparation method of a paper core, it comprises the steps:
One prefabricated cardboard strip is provided, on this prefabricated cardboard strip, is formed with the virtual tangent that extends along the length direction of this prefabricated cardboard strip;
Should prefabricated cardboard strip carry out screw winding around an axis to form tube, this virtual tangent is formed on the sidewall of this tube.
15. the preparation method of paper core as claimed in claim 14 is characterized in that: carry out in the process of screw winding around an axis in this prefabricated cardboard strip, this virtual tangent is exposed to the outside all the time.
16. the preparation method of a paper core, it comprises the steps:
One first cardboard strip and one second cardboard strip are provided; This first cardboard strip has along first superimposed district that its length direction extends and the first non-superimposed district that extends in parallel with this first superimposed district; In this first non-superimposed district, be formed with the virtual tangent that extends along its length direction, this second cardboard strip has along second superimposed district that its length direction extends and the second non-superimposed district that extends in parallel with this second superimposed district;
First superimposed district of this first cardboard strip and the second superimposed district of this second cardboard strip are fixed together along its length direction is range upon range of, and second cardboard strip is parallel is superimposed and staggered so that this first cardboard strip is with this;
This parallel first cardboard strip of being superimposed and staggered and second cardboard strip are carried out screw winding around an axis; In the process of screw winding, make first non-superimposed district of this first cardboard strip and the second non-superimposed district of this second cardboard strip be superimposed with each other fixing; Thereby forming with this axis is the tube of central shaft; This tube has first end and opposite second end, and is formed with around this axis the virtual tangent that is spirally extended to this second end from this first end on the sidewall of this tube.
17. the preparation method of paper core as claimed in claim 16; It is characterized in that: in the second non-superimposed district of the first non-superimposed district of this first cardboard strip and this second cardboard strip was superimposed with each other fixation process, the virtual tangent in this first non-superimposed district was exposed to the outside all the time.
18. the preparation method of paper core as claimed in claim 17; It is characterized in that: first non-superimposed district of this first cardboard strip and the second non-superimposed district of this second cardboard strip are that part is superimposed; Thereby on the lateral wall of this tube; Forming with this first non-superimposed district along a side of the superimposed line in this first non-superimposed district and this second non-superimposed district is the spiral helicine groove of bottom land, and this virtual tangent is formed on the bottom land of this groove.
19. the preparation method of paper core as claimed in claim 16 is characterized in that: after forming this tube, also comprise according to the predetermined length requirement this tube is carried out cutting steps.
20. the preparation method of a paper core, it comprises the steps:
One the 3rd cardboard strip and one the 4th cardboard strip are provided; Wherein, The 3rd cardboard strip has along the 3rd superimposed district that its length direction extends and the 3rd non-superimposed district that extends in parallel with the 3rd superimposed district; In the 3rd non-superimposed district, be formed with the virtual tangent that extends along its length direction, the width in the width of the 4th cardboard strip and the 3rd superimposed district is suitable;
Along the length bearing of trend in the 3rd superimposed district of the 3rd cardboard strip, be superimposed with each other the 3rd superimposed district of the 4th cardboard strip and the 3rd cardboard strip fixing;
This 3rd cardboard strip and the 4th cardboard strip that is fixed together that be superimposed with each other is carried out screw winding around an axis; In the process of screw winding, make the 3rd superimposed district and the 3rd non-superimposed district that are superimposed with the 4th cardboard strip superimposed fixing; Thereby forming with this axis is the tube of central shaft; It has first end and opposite second end, and is formed with around this axis the virtual tangent that is spirally extended to this second end from this first end on the sidewall of this tube.
21. the preparation method of paper core as claimed in claim 20 is characterized in that: in the superimposed fixation process in the 3rd superimposed district that is superimposed with the 4th cardboard strip and the 3rd non-superimposed district, the virtual tangent in the 3rd non-superimposed district is exposed to the outside all the time.
22. the preparation method of paper core as claimed in claim 21; It is characterized in that: the 3rd superimposed district and the 3rd non-superimposed district that are superimposed with the 4th cardboard strip are that part is superimposed; Thereby on the lateral wall of this tube; Will form with the 3rd non-superimposed district along a side of the superimposed line in the 3rd superimposed district and the 3rd non-superimposed district is the spiral helicine groove of bottom land, and this virtual tangent is formed on the bottom land of this groove.
23. roll web; It comprises paper core and is wound on the paper on this paper core; This paper core comprises that cylindrical sidewall, this cylindrical sidewall have first end and the second end that is oppositely arranged, and is characterized in that: on this cylindrical sidewall, be formed with the virtual tangent that extends to this second end around the axis of this paper core from this first end.
24. roll web as claimed in claim 23; It is characterized in that: this cylindrical sidewall comprises madial wall and lateral wall; Wherein, This madial wall is near the axis of this paper core, and this lateral wall is away from the axis of this paper core, and this virtual tangent is formed on this madial wall and its dotted portion runs through this madial wall.
25. roll web as claimed in claim 23; It is characterized in that: this cylindrical sidewall comprises madial wall and lateral wall; Wherein, This madial wall is near the axis of this paper core, and this lateral wall is away from the axis of this paper core, and this virtual tangent is formed on this lateral wall and its dotted portion runs through this lateral wall.
26. roll web as claimed in claim 23 is characterized in that: the dotted portion of this virtual tangent runs through this cylindrical sidewall.
27. like each described roll web of claim 23 to 26, it is characterized in that: this virtual tangent is spirally extended to the second end from this first end.
28. roll web as claimed in claim 27 is characterized in that: be formed with the groove that is spirally extended to the second end from this first end on this cylindrical sidewall, this virtual tangent is formed at the bottom of this groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104176428A CN102529172A (en) | 2011-12-14 | 2011-12-14 | Paper core and manufacturing method thereof as well as rolled paper with paper core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104176428A CN102529172A (en) | 2011-12-14 | 2011-12-14 | Paper core and manufacturing method thereof as well as rolled paper with paper core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102529172A true CN102529172A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104176428A Pending CN102529172A (en) | 2011-12-14 | 2011-12-14 | Paper core and manufacturing method thereof as well as rolled paper with paper core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102529172A (en) |
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| CN107364750A (en) * | 2016-05-12 | 2017-11-21 | 金红叶纸业集团有限公司 | A kind of manufacture method of paper core, roll web and roll web |
| CN110269534A (en) * | 2018-03-14 | 2019-09-24 | 金红叶纸业集团有限公司 | Paper core and preparation method thereof, roll web |
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Application publication date: 20120704 |