CN103637395A - Method for regulating color of surface of papermaking-reconstituted tobacco - Google Patents
Method for regulating color of surface of papermaking-reconstituted tobacco Download PDFInfo
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Abstract
The invention relates to the technical field of production of papermaking-reconstituted tobacco, in particular to a method for regulating the color of the surface of the papermaking-reconstituted tobacco. The method comprises the steps of (1) adding pigment and brightness additives to a tobacco concentrated solution according to color indexes expected to be presented by the reconstituted tobacco after pigment regulation; (2) coating base sheets of the reconstituted tobacco with the tobacco concentrated solution obtained from the step (1); (3) processing the base sheets obtained from the step (2) in an oven and obtaining finished products of the reconstituted tobacco after water balancing is conducted under constant temperature and humidity. According to the method for regulating the color of the surface of the papermaking-reconstituted tobacco, the probability that production requirements can not be met due to unreasonable adding of pigment is reduced, and a systematic and unprecedented breakthrough is realized in regulation of the color of the surface of the reconstituted tobacco.
Description
Technical field
The present invention relates to papermaking-method reconstituted tobaccos production technical field, particularly relate to a kind of regulate and control method of papermaking-method reconstituted tobaccos surface color.
Background technology
Papermaking-method reconstituted tobaccos (Paper-process reconstituted tobacco) is called again reconstituted tobacoo, it is the paper technology after adopting modern extraction and separation process and improveing, a kind of " artificial tobacco leaf " that tobacco byproduct and dead meal are processed, also claim papermaking-method reconstituted tobaccos, to be mainly the tobacco pulp made with the waste material in the processing of the tobacco such as offal, broken cigarette and offal manufacture paper with pulp into substrate with the mixing such as a certain amount of wood pulp and filler through paper machine makes through dip coated again.
Papermaking-method reconstituted tobaccos has become the especially important component part of low-coke tar cigarette formula of cigarette composition, particularly be accompanied by the development of tobacco sheets by paper making method technology, can produce steady quality, tar content is low and filling is worth high reconstituted tobacoo, thin slice is produced the mode that has broken through simple twice laid, beginning is improving cigarette burning degree, improve the inherent quality of cigarette product, reduce the harmful components in cigarette, the aspects such as content that reduce tar and nicotine play a major role.
In sum, papermaking-method reconstituted tobaccos has " making a silk purse out of a sow's ear ", " reducing tar and reducing harm " texts, development Chinese-style cigarette is had to important function, but most domestic smoker has inveteracy understanding for tobacco leaf color at present, think that tobacco leaf color and luster and Sensory Quality of Cigarette have direct hook, this makes one of major reason that high-grade cigarette cannot reduce the dependence of high-quality tobacco leaf, and is unfavorable for the target of cigarette market long-term sustainable development.How to improve and the problem of stable reconstituted tobacco surface color, become and solve the stepping-stone to success that reconstituted tobacco enters high-grade cigarette smoothly.
The present invention is directed to the unsettled present situation of current reconstituted tobacco surface color, theoretical based on CIELAB color space, utilize existing detection means, reconstituted tobacco surface color is quantized, and by the rational allocation of pigment, reach the object of improvement stable color and luster, compare with the existing eye test generally using and there is more reliable scientific basis and play certain inhibitory action for preventing that pigment additive from abusing.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the invention is to reconstituted tobacco surface color to quantize, and by the rational allocation of pigment, reach the effect of improvement stable color and luster, so that a kind of regulate and control method of papermaking-method reconstituted tobaccos surface color to be provided, for solving the problems of the prior art.
First the essence of color is light, illumination on object, the light that object reflects, by human eye, accepted, cellula visualis produces response signal, and optic nerve passes to brain signal, brain, after signal is processed, draws the relevant information of object: position, size, shape, quality, and color.Different objects is different to the reflection of spectrum, absorbent properties, has formed different energy spectrums.Different energy spectrums enter human eye, thereby perceive different colors.The visible visible ray essence that we see is to have the light of multiple single wavelength to combine color and luster corresponding to formation.
For achieving the above object and other relevant objects, the invention provides a kind of regulate and control method of papermaking-method reconstituted tobaccos surface color, comprise the steps:
1) color index that reconstituted tobacco is shown after regulating by pigment according to hope adds pigment and brightness additive in tobacco concentrate;
The color index that described hope shows reconstituted tobacco after regulating by pigment, needs the target tobacco leaf of simulation or the color index of reconstituted tobacco product in generally referring to produce;
2) use step (1) gained tobacco concentrate to be coated with reconstituted tobacco substrate;
3) by step (2) gained substrate process oven, after constant temperature and humidity equilibrium water conten, obtain reconstituted tobacco finished product;
In described step (1), in tobacco concentrate the kind of pigment or brightness additive add up to three kinds, addition X, the Y of pigment or brightness additive, Z calculate gained by following formula:
L
target-L
background color=A
1x+A
2y+A
3z ... <1>
A
* target-a
* background color=B
1x+B
2y+B
3z ... <2>
B
* target-b
* background color=C
1x+C
2y+C
3z ... <3>
In formula:
L
target: the colour brilliance index (brightness) that reconstituted tobacco is shown after regulating by pigment for hope;
A
* target: the color chromaticity index (red green axle) that reconstituted tobacco is shown after regulating by pigment for hope;
B
* target: the color chromaticity index (champac axle) that reconstituted tobacco is shown after regulating by pigment for hope;
L
background color: for not adding any pigment and additive, and after coating the colour brilliance index (brightness) of semi-finished product reconstituted tobacco of gained;
A
* background color: for not adding any pigment and additive, and after coating the color chromaticity index (red green axle) of semi-finished product reconstituted tobacco of gained;
B
* background color: for not adding any pigment and additive, and after coating the color chromaticity index (champac axle) of semi-finished product reconstituted tobacco of gained;
X, Y, Z: the theoretical consumption that is respectively 3 kinds of pigments and brightness additive; X is that pigment or brightness additive 1, Y are that pigment or brightness additive 2, Z are pigment or brightness additive 3;
A
1, B
1, C
1: the L of unit, a that are respectively pigment or brightness additive 1
*, b
*value contribution degree;
A
2, B
2, C
2: the L of unit, a that are respectively pigment or brightness additive 2
*, b
*value contribution degree;
A
3, B
3, C
3: the L of unit, a that are respectively pigment or brightness additive 3
*, b
*value contribution degree.
Preferably, in described step (1), X, Y, Z: the theoretical consumption that is respectively 3 kinds of pigments and brightness additive; X is that pigment 1, Y are pigment 2, Z brightness additive 3;
A
1, B
1, C
1: the L of unit, a that are respectively pigment 1
*, b
*value contribution degree;
A
2, B
2, C
2: the L of unit, a that are respectively pigment 2
*, b
*value contribution degree;
A
3, B
3, C
3: the L of unit, a that are respectively brightness additive 3
*, b
*value contribution degree.
The basis of more than calculating is: 1) by chromascope, determine and do not add any pigment and additive, and after coating semi-finished product reconstituted tobacco L, a of gained
*, b
*value (being called afterwards background color); 2) by chromascope, determine L, a of target finished product reconstituted tobacco
*, b
*value (being called afterwards target sample); 3) for the consumption gradient test of being correlated with of pigment and brightness additive, and return and obtain associated additives unit's consumption for reconstituted tobacco color and luster L, a
*, b
*be worth contribution degree, obtain relevant regression curve simultaneously.
L, a on various reconstituted tobaccos due to pigment and additive
*, b
*value contribution degree might not be identical, so in the present invention, A
1, B
1, C
1(be respectively the L of unit, a of pigment or brightness additive 1
*, b
*value contribution degree); A
2, B
2, C
2(be respectively the L of unit, a of pigment or brightness additive 2
*, b
*value contribution degree); A
3, B
3, C
3(be respectively the L of unit, a of pigment or brightness additive 3
*, b
*value contribution degree) concrete metering system is: in coating fluid, by concentration gradient, add respectively pigment or brightness additive 1,2,3, obtain containing respectively three serial concentration gradient coating fluids of pigment or brightness additive 1,2,3, use the coating fluid of gained to be coated with respectively substrate.After painting process completes, finished product thin slice is positioned over to oven for drying.After baking operation completes, the finished product thin slice obtaining is positioned over to constant-temperature constant-humidity environment equilibrium water conten 1～2 day.After completing, equilibrium process use chromascope to carry out L, a for each sample
*, b
*the detection of value, draws L, a of each pigment or brightness additive according to the data obtained
*, b
*the Line Chart of value, and respectively with L, a
*, b
*the slope value obtaining in regression equation after linear regression after concentration gradient mapping is to contribution degree An, Bn, Cn(n=1-3).
Preferably, tobacco pulp and wood pulp 80～85%:15～20% in mass ratio in described substrate.
Preferably, the concentrated solution density that described coating is used is 1.21-1.22g/cm
3.
Preferably, described concentration gradient is 0%, 0.2%, 0.5%, 1.0%, 1.5%, 2.0%.
Preferably, described coating condition is: temperature: room temperature; Linear pressure: 3.0～4.0kg/cm
2; Linear velocity 70～80cm/min; Coating number of times: 1 time.
Preferably, the condition of described oven for drying is that oven temperature is: 100～105 ℃, drying time 5～7min.
Preferably, the temperature of described constant temperature and humidity equilibrium water conten is 21～23 ℃, and humidity is 57～63%
Preferably, tobacco concentrate in described step (1) is that tobacco extraction makes, the technical process of extraction is: by after the mixing of materials such as offal, offal, smoked sheet, stalk label, water extracts, the ratio of material and water is about 1:3～5, concentrated after extraction, extraction temperature: 70～80 ℃, the density of concentrated rear concentrate is 1.21-1.22g/cm
3.
Preferably, described pigment is selected from one or more the combination in natural Beta-carotene, natural Monascus color, natural turmeric and alkermes, and its adding proportion is calculated depending on theoretical.
Preferably, described brightness additive is selected from one or both the combination in nano silicon-based oxide or Nano titanium dioxide, and its particle size range is between 30～40nm, and concrete adding proportion is calculated depending on theoretical.
Preferably, in described step (2), in tobacco substrate, the ratio of the mixed weight of tobacco pulp and wood pulp is 80～85:15～20.
Preferably, in described step (2), described tobacco concentrate is 30～40% at the on-chip spreading rate of described reconstituted tobacco.
Preferably, in described step (3), the actual conditions through oven is: 100～105 ℃ are dried 5～7min.
Preferably, in the processing procedure of described step (3), guarantee that resulting reconstituted tobacco finished surface color is consistent with desired value or approach.
Second aspect present invention provides the purposes of the regulate and control method of described papermaking-method reconstituted tobaccos surface color in papermaking-method reconstituted tobaccos production technical field.
In real industrial operation process, affect a lot of because have of reconstituted tobacco finished product color and luster, such as the change of products material formula, bake out temperature in process of the height of product spreading rate, product and the dyeing property of pigment self etc.From above disclosed technical scheme, no matter the present invention is the change of technique in reconstituted tobacco process or the variation that adopts the self-characteristic of pigment, all can calculate fast, accurately the required pigment adding and brightness additive amount by above technical scheme, to overcome the defect that generally eye test of employing is brought product color stability at present, and can effectively reduce the risk of pigment abuse.
The present invention is L, a on different reconstituted tobaccos according to different pigments and additive
*, b
*value contribution degree, calculate to obtain the addition of pigment and additive in tobacco concentrate, makes reconstituted tobacco finished product after re-using the coating of reconstituted tobacco substrate, thereby guarantees that resulting reconstituted tobacco finished surface color is consistent with desired value or approaching; This regulate and control method is theoretical based on CIELAB color space, is about to all visible colors and gives respectively a space coordinates and position, and finally reaches test sample and target sample at L, a
*, b
*on numerical value, be consistent, thereby reduce because pigment adds unreasonable, cannot reach production requirement, and in the regulation and control of reconstituted tobacco surface color, accomplish system, breakthrough from zero.
Accompanying drawing explanation
Fig. 1 embodiment 1 does not add any pigment and additive, and after coating the semi-finished product reconstituted tobacco of gained.(background color)
Fig. 2 embodiment 1 calculates the test sample after each pigment or brightness additive amount by above technical scheme.
Target sample after Fig. 3 embodiment 1 reconstituted tobacco toning.
Fig. 4 is natural Beta-carotene a
*value.
Fig. 5 is natural Beta-carotene b
*value.
Fig. 6 is natural Monascus color L value.
Fig. 7 is natural Monascus color a
*value.
Fig. 8 is natural Monascus color b
*value.
Fig. 9 is nano material L value.
Figure 10 is nano material a
*value.
Figure 11 is nano material b
*value.
The specific embodiment
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this description.The present invention can also be implemented or be applied by the other different specific embodiment, and the every details in this description also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
Notice, process equipment or device concrete not dated in the following example all adopt conventional equipment or the device in this area; All force value and scope all refer to absolute pressure.
In addition should be understood that one or more method steps of mentioning in the present invention do not repel between the step that can also have additive method step or clearly mention at these before and after described combination step can also insert additive method step, except as otherwise noted; Will also be understood that, the relation that is connected between one or more equipment/devices of mentioning in the present invention is not repelled between two equipment/devices that can also have other equipment/devices or clearly mention at these before and after described unit equipment/device can also insert other equipment/devices, except as otherwise noted.And, except as otherwise noted, the numbering of various method steps is only for differentiating the convenient tool of various method steps, but not for limiting the ordering of various method steps or limiting the enforceable scope of the present invention, the change of its relativeness or adjustment, without essence change technology contents in the situation that, when being also considered as the enforceable category of the present invention.
Small scale experiments:
Raw material and performance parameter thereof:
Coated substrate: the ratio of the mixed weight of tobacco pulp and wood pulp is 80～85:15～20, the sheet base obtaining through the moulding of manufacturing paper with pulp.
Coating concentrate: density is 1.21-1.22g/cm
3.
Natural Beta-carotene: food stage.
Natural Monascus color: food stage.
Nano silicon-based oxide: white powder, its particle size range are between 30～40nm.
Experimental procedure:
1) natural carrot primitive unit cell L, a
*, b
*value contribution degree is measured: ready substrate (tobacco pulp and wood pulp be 80～85%:15～20% in mass ratio) is coated with.The concentrated solution density that coating is used is 1.21-1.22g/cm
3, and by gradient, add natural Beta-carotene in concentration liquid, concentration gradient is 0%, 0.2%, 0.5%, 1.0%, 1.5%, 2.0%.Coating condition is: temperature: room temperature; Linear pressure: 3.0～4.0kg/cm
2; Linear velocity 70～80cm/min; Coating number of times: 1 time.After painting process completes, finished product thin slice is positioned over to oven for drying.Oven temperature is: 100～105 ℃, drying time 5～7min.After baking operation completes, the finished product thin slice obtaining is positioned over to constant-temperature constant-humidity environment equilibrium water conten 1～2 day, the temperature of constant temperature and humidity equilibrium water conten is 21～23 ℃, and humidity is 57～63%.After completing, equilibrium process use chromascope to carry out L, a for each sample
*, b
*the detection of value, record as shown in table 1, Line Chart as shown in Figure 4 and Figure 5, and respectively with L, a
*, b
*the slope value obtaining in regression equation after linear regression after concentration gradient mapping is to contribution degree A
1=0, B
1=0.2341, C
1=3.3595.(note: this test natural Beta-carotene of taking is along with the increase of addition is not almost contributed the L value of finished product, therefore can think A
1=0)
Table 1 natural carrot primitive unit cell L, a
*, b
*value contribution degree
2) natural red colouring agent for food, also used as a Chinese medicine clearance permit position L, a
*, b
*value contribution degree is measured: ready substrate (tobacco pulp and wood pulp be 80～85%:15～20% in mass ratio) is coated with.The concentrated solution density that coating is used is 1.21-1.22g/cm
3, and by gradient, add natural Monascus color in concentration liquid, concentration gradient is 0%, 0.5%, 1.0%, 1.5%, 2.0%.Coating condition is: temperature: room temperature; Linear pressure: 3.0～4.0kg/cm2; Linear velocity 70～80cm/min; Coating number of times: 1 time.After painting process completes, finished product thin slice is positioned over to oven for drying.Oven temperature is: 100～105 ℃, drying time 5～7min.After baking operation completes, the finished product thin slice obtaining is positioned over to constant-temperature constant-humidity environment equilibrium water conten 1～2 day, the temperature of constant temperature and humidity equilibrium water conten is 21～23 ℃, and humidity is 57～63%.After completing, equilibrium process use chromascope to carry out L, a for each sample
*, b
*the detection of value, record as shown in table 2, and respectively with L, a
*, b
*the slope value obtaining in regression equation after linear regression after concentration gradient mapping is to contribution degree A
2=-0.987, B
2=1.8658, C
2=-0.5698.
The natural red colouring agent for food, also used as a Chinese medicine clearance permit position L of table 2, a
*, b
*value contribution degree
3) nano material L, a
*, b
*value contribution degree is measured: ready substrate (tobacco pulp and wood pulp be 80～85%:15～20% in mass ratio) is coated with.The concentrated solution density that coating is used is 1.21-1.22g/cm
3, and by gradient, add nano silicon-based oxide in concentration liquid, concentration gradient is 0%, 1%, 2%, 3%, 4%, 5%.Coating condition is: temperature: room temperature; Linear pressure: 3.0～4.0kg/cm
2; Linear velocity 70～80cm/min; Coating number of times: 1 time.After painting process completes, finished product thin slice is positioned over to oven for drying.Oven temperature is: 100～105 ℃, drying time 5～7min.After baking operation completes, the finished product thin slice obtaining is positioned over to constant-temperature constant-humidity environment equilibrium water conten 1～2 day, the temperature of constant temperature and humidity equilibrium water conten is 21～23 ℃, and humidity is 57～63%.After completing, equilibrium process use chromascope to carry out L, a for each sample
*, b
*the detection of value, record as shown in table 3, and respectively with L, a
*, b
*the slope value obtaining in regression equation after linear regression after concentration gradient mapping is to contribution degree A
3=0.4553, B
3=-0.1443, C
3=-0.3151.
Table 3 nano silicon-based oxide L, a
*, b
*value contribution degree
4) background color L, a
*, b
*value is determined: ready substrate (tobacco pulp and wood pulp be 80～85%:15～20% in mass ratio) is coated with.The concentrated solution density that coating is used is 1.21-1.22g/cm
3, in concentrate, do not add any pigment and brightness additive.Coating condition is: temperature: room temperature; Linear pressure: 3.0～4.0kg/cm
2; Linear velocity 70～80cm/min; Coating number of times: 1 time.After painting process completes, finished product thin slice is positioned over to oven for drying.Oven temperature is: 105 ℃, drying time 5～7min.After baking operation completes, the finished product thin slice obtaining is positioned over to constant-temperature constant-humidity environment equilibrium water conten 1～2 day, the temperature of constant temperature and humidity equilibrium water conten is 21～23 ℃, and humidity is 57～63%.After completing, equilibrium process use chromascope to carry out L, a for each sample
*, b
*value detection, record L(background color), a
*(background color), b
*the value of (background color) is as shown in table 4.
Table 4 background color L, a
*, b
*value
5) target sample (reconstituted tobacco product) L, a
*, b
*value is determined: target sample is positioned over to constant-temperature constant-humidity environment equilibrium water conten 1～2 day, and the temperature of constant temperature and humidity equilibrium water conten is 21～23 ℃, and humidity is 57～63%.After completing, equilibrium process use chromascope to carry out L, a for each sample
*, b
*value detection, record L(target), a
*(target), b
*the value of (target) is as shown in table 5.
Table 5 target sample L, a
*, b
*value
| ? | L | a * | b * |
| ? | 55.06 | 10.21 | 32.15 |
| ? | 53.52 | 10.88 | 32.18 |
| ? | 55.15 | 10.01 | 31.87 |
| ? | 53.4 | 10.87 | 31.73 |
| ? | 54.69 | 10.11 | 31.73 |
| ? | 53.55 | 10.79 | 31.71 |
| ? | 54.99 | 10.19 | 32.23 |
| ? | 53.54 | 10.87 | 31.85 |
| ? | 55.04 | 10.23 | 32.7 |
| ? | 53.75 | 10.93 | 32.47 |
| ? | 53.08 | 11.15 | 32.66 |
| ? | 54.42 | 10.42 | 32.79 |
| ? | 54.39 | 10.34 | 32.36 |
| ? | 54.17 | 10.37 | 32.49 |
| ? | 53.2 | 11.22 | 32.7 |
| ? | 53.52 | 10.96 | 32.8 |
| ? | 54.99 | 10.35 | 32.9 |
| ? | 53.22 | 11.02 | 32.51 |
| ? | 54.57 | 10.34 | 32.7 |
| ? | 54.34 | 10.45 | 32.57 |
| On average | 54.1295 | 10.5855 | 32.355 |
6) achievement check: calculate respectively each pigment and brightness additive use amount by following equation according to above cumulative data
L(target)-L(background color)=A
1x+A
2y+A
3z ... <1>
A
*(target)-a
*(background color)=B
1x+B
2y+B
3z ... <2>
B
*(target)-b
*(background color)=C
1x+C
2y+C
3z ... <3>
Through calculating natural Beta-carotene: 1.53%, natural Monascus color: 1.26%, nano material: 0.62%.
Ready substrate (tobacco pulp and wood pulp be 80～85%:15～20% in mass ratio) is coated with.The concentrated solution density that coating is used is 1.21-1.22g/cm
3, in concentrate, add natural Beta-carotene: 1.53%, natural Monascus color: 1.26%, nano silicon-based oxide: 0.62%.Coating condition is: temperature: room temperature; Linear pressure: 3.0～4.0kg/cm
2; Linear velocity 70～80cm/min; Coating number of times: 1 time.After painting process completes, finished product thin slice is positioned over to oven for drying.Oven temperature is: 105 ℃, drying time 5～7min.After baking operation completes, the finished product thin slice obtaining is positioned over to constant-temperature constant-humidity environment equilibrium water conten 1～2 day, the temperature of constant temperature and humidity equilibrium water conten is 21～23 ℃, and humidity is 57～63%.After completing, equilibrium process use chromascope to carry out L, a for each sample
*, b
*the detection of value, records as shown in table 6.
Table 6 test sample L, a
*, b
*value
Table 7 Contrast on effect
| ? | L | a * | b * |
| Test sample | 54.25667 | 10.03317 | 31.542 |
| Target sample | 54.1295 | 10.5855 | 32.355 |
From table 7 data, can find out intuitively that test sample and target sample are at L, a
*, b
*almost close in value.From Fig. 2 and Fig. 3, can also find intuitively that both color and lusters have been difficult to the naked eye distinguish.By above test, show, no matter papermaking-method reconstituted tobaccos processing technology how to change, formula material and how auxiliary material is adjusted, how pigment additive characteristic changes, all can weigh and obtain corresponding pigment addition by the technical scheme of above announcement, make finished product color and luster unified stable and controlled, form the theoretical foundation system that a set of reconstituted tobacco color and luster is adjusted.
Small scale experiments:
Raw material and performance parameter thereof:
Coated substrate: the ratio of the mixed weight of tobacco pulp and wood pulp is 80～85:15～20, the sheet base obtaining through the moulding of manufacturing paper with pulp.
Coating concentrate: density is 1.21-1.22g/cm
3.
Natural turmeric: food stage.
Natural alkermes: food stage.
Titanium dioxide: white powder, its particle size range are between 30～40nm.
Experimental procedure:
Specific operation process is similar to embodiment 1, and respectively with L, a
*, b
*the slope value obtaining in regression equation after linear regression after each pigment additive concentration gradient mapping is to contribution degree A
1=-0.5487, A
2=-1.3636, A
3=0.4256; B
1=0.258, B
2=2.366, B
3=-0.1372; C
1=4.446, C
2=-1.7196, C
3=-0.3151.By color control model
L(target)-L(background color)=A
1x+A
2y+A
3z ... <1>
A
*(target)-a
*(background color)=B
1x+B
2y+B
3z ... <2>
B
*(target)-b
*(background color)=C
1x+C
2y+C
3z ... <3>
Wherein background color sample data is as follows:
Background color L, a
*, b
*value is determined: ready substrate (tobacco pulp and wood pulp be 80～85%:15～20% in mass ratio) is coated with.The concentrated solution density that coating is used is 1.21-1.22g/cm
3, in concentrate, do not add any pigment and brightness additive.Coating condition is: temperature: room temperature; Linear pressure: 3.0～4.0kg/cm
2; Linear velocity 70～80cm/min; Coating number of times: 1 time.After painting process completes, finished product thin slice is positioned over to oven for drying.Oven temperature is: 105 ℃, drying time 5～7min.After baking operation completes, the finished product thin slice obtaining is positioned over to constant-temperature constant-humidity environment equilibrium water conten 1～2 day, the temperature of constant temperature and humidity equilibrium water conten is 21～23 ℃, and humidity is 57～63%.After completing, equilibrium process use chromascope to carry out L, a for each sample
*, b
*value detection, record L(background color), a
*(background color), b
*the value of (background color) is as shown in table 8.
Table 8 background color L, a
*, b
*value
Target sample (reconstituted tobacco product) L, a
*, b
*value is determined: target sample is positioned over to constant-temperature constant-humidity environment equilibrium water conten 1～2 day, and the temperature of constant temperature and humidity equilibrium water conten is 21～23 ℃, and humidity is 57～63%.After completing, equilibrium process use chromascope to carry out L, a for each sample
*, b
*value detection, record L(target), a
*(target), b
*the value of (target) is as shown in table 9.
Table 9 target sample L, a
*, b
*value
| ? | L | a * | b * |
| ? | 55.06 | 10.21 | 32.15 |
| ? | 53.52 | 10.88 | 32.18 |
| ? | 55.15 | 10.01 | 31.87 |
| ? | 53.4 | 10.87 | 31.73 |
| ? | 54.69 | 10.11 | 31.73 |
| ? | 53.55 | 10.79 | 31.71 |
| ? | 54.99 | 10.19 | 32.23 |
| ? | 53.54 | 10.87 | 31.85 |
| ? | 55.04 | 10.23 | 32.7 |
| ? | 53.75 | 10.93 | 32.47 |
| ? | 53.08 | 11.15 | 32.66 |
| ? | 54.42 | 10.42 | 32.79 |
| ? | 54.39 | 10.34 | 32.36 |
| ? | 54.17 | 10.37 | 32.49 |
| ? | 53.2 | 11.22 | 32.7 |
| ? | 53.52 | 10.96 | 32.8 |
| ? | 54.99 | 10.35 | 32.9 |
| ? | 53.22 | 11.02 | 32.51 |
| ? | 54.57 | 10.34 | 32.7 |
| ? | 54.34 | 10.45 | 32.57 |
| On average | 54.1295 | 10.5855 | 32.355 |
Through calculating natural turmeric: 1.72%, natural alkermes: 0.898%, titanium dioxide: 4.45%.
Ready substrate (tobacco pulp and wood pulp be 80～85%:15～20% in mass ratio) is coated with.The concentrated solution density that coating is used is 1.2150 ± 0.005g/cm
3, in concentrate, add natural turmeric: 0.97%, natural alkermes: 1.78%, nano material: 0.52%.Coating condition is: temperature: room temperature; Linear pressure: 3.0～4.0kg/cm
2; Linear velocity 70～80cm/min; Coating number of times: 1 time.After painting process completes, finished product thin slice is positioned over to oven for drying.Oven temperature is: 100～105 ℃, drying time 5～7min.After baking operation completes, the finished product thin slice obtaining is positioned over to constant-temperature constant-humidity environment equilibrium water conten 1～2 day, the temperature of constant temperature and humidity equilibrium water conten is 21～23 ℃, and humidity is 57～63%.After completing, equilibrium process use chromascope to carry out L, a for each sample
*, b
*the detection of value, result is as shown in table 10:
Table 10 test sample L, a
*, b
*value
Table 11 Contrast on effect
| ? | L | a * | b * |
| Test sample | 54.2630 | 10.0623 | 31.547 |
| Target sample | 54.1295 | 10.5855 | 32.355 |
The above; it is only preferred embodiment of the present invention; not to any formal and substantial restriction of the present invention; should be understood that; for those skilled in the art; do not departing under the prerequisite of the inventive method, also can make some improvement and supplement, these improvement and supplement and also should be considered as protection scope of the present invention.All those skilled in the art, without departing from the spirit and scope of the present invention, a little change of making when utilizing disclosed above technology contents, the equivalent variations of modifying and developing, be equivalent embodiment of the present invention; Meanwhile, the change of any equivalent variations that all foundations essence technology of the present invention is done above-described embodiment, modification and differentiation, all still belong in the scope of technical scheme of the present invention.
Claims (10)
1. a regulate and control method for papermaking-method reconstituted tobaccos surface color, comprises the steps:
1) color index that reconstituted tobacco is shown after regulating by pigment according to hope adds pigment and brightness additive in tobacco concentrate;
2) use step (1) gained tobacco concentrate to be coated with reconstituted tobacco substrate;
3) by step (2) gained substrate process oven, after constant temperature and humidity equilibrium water conten, obtain reconstituted tobacco finished product;
In described step (1), in tobacco concentrate the kind of pigment or brightness additive add up to three kinds, addition X, the Y of pigment or brightness additive, Z calculate gained by following formula:
L
target-L
background color=A
1x+A
2y+A
3z ... <1>
A
* target-a
* background color=B
1x+B
2y+B
3z ... <2>
B
* target-b
* background color=C
1x+C
2y+C
3z ... <3>
In formula:
L
target: the colour brilliance index-brightness that reconstituted tobacco is shown after regulating by pigment for hope;
A
* target: the color chromaticity index-red green axle that reconstituted tobacco is shown after regulating by pigment for hope;
B
* target: the color chromaticity index-champac axle that reconstituted tobacco is shown after regulating by pigment for hope;
L
background color: for not adding any pigment and additive, and after coating the colour brilliance index (brightness) of semi-finished product reconstituted tobacco of gained;
A
* background color: for not adding any pigment and additive, and after coating the color chromaticity index (red green axle) of semi-finished product reconstituted tobacco of gained;
B
* background color: for not adding any pigment and additive, and after coating the color chromaticity index (champac axle) of semi-finished product reconstituted tobacco of gained;
X, Y, Z: the theoretical consumption that is respectively 3 kinds of pigments or brightness additive; X is that pigment or brightness additive 1, Y are that pigment or brightness additive 2, Z are pigment or brightness additive 3;
A
1, B
1, C
1: the L of unit, a that are respectively pigment or brightness additive 1
*, b
*value contribution degree;
A
2, B
2, C
2: the L of unit, a that are respectively pigment or brightness additive 2
*, b
*value contribution degree;
A
3, B
3, C
3: the L of unit, a that are respectively pigment or brightness additive 3
*, b
*value contribution degree;
Wherein, A
1, B
1, C
1, A
2, B
2, C
2, A
3, B
3, C
3measuring method as follows: in coating fluid, by concentration gradient, add respectively pigment or brightness additive 1, pigment or brightness additive 2, pigment or brightness additive 3, obtain containing respectively three serial concentration gradient coating fluids of pigment or brightness additive 1, pigment or brightness additive 2, pigment or brightness additive 3, use the coating fluid of gained respectively substrate to be coated with; After painting process completes, finished product thin slice is positioned over to oven for drying; After baking operation completes, the finished product thin slice obtaining is positioned over to constant-temperature constant-humidity environment equilibrium water conten 1～2 day; After completing, equilibrium process use chromascope to carry out L, a for each sample
*, b
*the detection of value, draws L, a of each pigment or brightness additive according to the data obtained
*, b
*the Line Chart of value, and respectively with L, a
*, b
*the slope value obtaining in regression equation after linear regression after concentration gradient mapping is to contribution degree An, Bn, Cn, n=1-3.
2. the regulate and control method of papermaking-method reconstituted tobaccos surface color as claimed in claim 1, is characterized in that, in described step (1), and X, Y, Z: the theoretical consumption that is respectively 3 kinds of pigments and brightness additive; X is that pigment 1, Y are pigment 2, Z brightness additive 3;
A
1, B
1, C
1: the L of unit, a that are respectively pigment 1
*, b
*value contribution degree;
A
2, B
2, C
2: the L of unit, a that are respectively pigment 2
*, b
*value contribution degree;
A
3, B
3, C
3: the L of unit, a that are respectively brightness additive 3
*, b
*value contribution degree.
3. the regulate and control method of papermaking-method reconstituted tobaccos surface color as claimed in claim 1, it is characterized in that, tobacco concentrate in described step (1) is that tobacco extraction makes, the technical process of extraction is: by after the mixing of materials such as offal, offal, smoked sheet, stalk label, water extracts, and the ratio of material and water is about 1:3～5, concentrated after extraction, extraction temperature: 70～80 ℃, the density of concentrated rear concentrate is 1.21-1.22g/cm
3.
4. the regulate and control method of papermaking-method reconstituted tobaccos surface color as claimed in claim 1, it is characterized in that, described pigment is selected from one or more the combination in natural Beta-carotene, natural Monascus color, natural turmeric and alkermes, and its adding proportion is calculated depending on theoretical.
5. the regulate and control method of papermaking-method reconstituted tobaccos surface color as claimed in claim 1, it is characterized in that, described brightness additive is selected from one or both the combination in nano silicon-based oxide or Nano titanium dioxide, its particle size range is between 30～40nm, and concrete adding proportion is calculated depending on theoretical.
6. the regulate and control method of papermaking-method reconstituted tobaccos surface color as claimed in claim 1, is characterized in that, in described step (2), in tobacco substrate, the ratio of the mixed weight of tobacco pulp and wood pulp is 80～85:15～20.
7. the regulate and control method of papermaking-method reconstituted tobaccos surface color as claimed in claim 1, is characterized in that, in described step (2), described tobacco concentrate is 30～40% at the on-chip spreading rate of described reconstituted tobacco.
8. the regulate and control method of papermaking-method reconstituted tobaccos surface color as claimed in claim 1, is characterized in that, the actual conditions through oven in described step (3) is: 100～105 ℃ are dried 5～7min.
9. the regulate and control method of papermaking-method reconstituted tobaccos surface color as claimed in claim 1, is characterized in that, in the processing procedure of described step (3), guarantees that resulting reconstituted tobacco finished surface color is consistent with desired value or approaches.
10. the regulate and control method of the papermaking-method reconstituted tobaccos surface color as described in claim as arbitrary in claim 1-9 is in the purposes of papermaking-method reconstituted tobaccos production technical field.
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| CN104026725A (en) * | 2014-06-17 | 2014-09-10 | 江苏中烟工业有限责任公司 | Method for improving luster of reconstituted tobacco in paper-making process |
| CN104432468A (en) * | 2014-10-21 | 2015-03-25 | 云南瑞宝生物科技有限公司 | Tobacco sheet coating liquid containing natural pigment and preparing method thereof |
| CN105910997A (en) * | 2016-04-11 | 2016-08-31 | 福建中烟工业有限责任公司 | Method and apparatus used for rapidly determining spreading rate of papermaking process reconstituted tobacco leaf product |
| CN106901398A (en) * | 2017-03-30 | 2017-06-30 | 浙江中烟工业有限责任公司 | A kind of method that use titanium dioxide improves papermaking-method reconstituted tobaccos product filler retention |
| CN108851180A (en) * | 2018-07-25 | 2018-11-23 | 湖北中烟工业有限责任公司 | A kind of device and method improving papermaking-method reconstituted tobaccos coating weight two sides difference |
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| CN106901398A (en) * | 2017-03-30 | 2017-06-30 | 浙江中烟工业有限责任公司 | A kind of method that use titanium dioxide improves papermaking-method reconstituted tobaccos product filler retention |
| CN108851180A (en) * | 2018-07-25 | 2018-11-23 | 湖北中烟工业有限责任公司 | A kind of device and method improving papermaking-method reconstituted tobaccos coating weight two sides difference |
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