CN103868861A

CN103868861A - Method for measuring color fastness to saliva of tipping paper for cigarette

Info

Publication number: CN103868861A
Application number: CN201410113704.XA
Authority: CN
Inventors: 叶长文; 牛佳佳; 李栋; 贺琛; 陈连芳; 范黎; 蒋锦锋
Original assignee: Zhengzhou Tobacco Research Institute of CNTC
Current assignee: Zhengzhou Tobacco Research Institute of CNTC
Priority date: 2014-03-25
Filing date: 2014-03-25
Publication date: 2014-06-18
Anticipated expiration: 2034-03-25
Also published as: CN103868861B

Abstract

The invention relates to a method for measuring the color fastness to saliva of tipping paper for a cigarette. The method is characterized by comprising the steps of sticking the tipping paper sample with glass fiber paper soaked by simulated saliva to form a combined sample, and placing the combined sample under the pressure of a 1kg of load at the temperature of 40 DEG C; evaluating staining degree of the glass fiber paper by a colorimeter. The method is capable of better simulating the contact process between the oral cavity of the human body and the tipping paper on a cigarette filter, and is simple to operate and rapid in measurement speed; compared with a grey scale visual observation method, the method adopts the colorimeter for evaluating the staining fastness degree, so that the results are more objective and accurate, the interference of subjective mood and objective environment of people can be avoided, and the reproducibility is good.

Description

A kind of assay method of the cigarette tipping paper colour fastness of resistance to saliva

Technical field

The invention belongs to the physical and chemical index analysis technical field of smoking material, be specifically related to a kind of assay method of the cigarette tipping paper colour fastness of resistance to saliva.

Background technology

Cigarette tipping paper touches material as mouth, and its print surface directly contacts with human oral cavity, is subject to may cause the phenomenon of fading or fade under saliva immersion and lips and teeth pressure-acting, thereby has affected the outward appearance of cigarette product in the time of consumer's smoking cigarette.The production technology of cigarette tipping paper and printing technology become more diverse in recent years, and various new materials are constantly applied, if the colour fastness of resistance to saliva of tipping paper is below standard, will certainly cause consumer engulf dyestuff and come to harm, and directly affect the security of cigarette product.Therefore, set up the detection method of the cigarette tipping paper colour fastness of resistance to saliva, and in corresponding product standard, propose to judge index, the product quality of enterprise being controlled and improve tipping paper is had very important significance.At present both at home and abroad, there is no patent and the bibliographical information of the cigarette tipping paper colour fastness of resistance to saliva method of testing.

Summary of the invention

Object of the present invention provides a kind of assay method of the cigarette tipping paper colour fastness of resistance to saliva just based on existing problem in above-mentioned prior art.

The object of the invention is to be achieved through the following technical solutions: a kind of assay method of the cigarette tipping paper colour fastness of resistance to saliva, tipping paper sample is fitted and contacted up and down with two blocks of all-glass papers that infiltrated by saliva simulated solution, under 40 DEG C of temperature environments He under 1kg heavy burden pressure, place after 10min, open, all-glass paper is dried naturally, by the staining degree of color difference meter evaluation all-glass paper.Concrete steps are as follows:

1) sample preparation: tipping paper sample is cut into the sample (approximately volume cigarette tipping paper size) of 50mm × 30mm size, all-glass paper cuts into 60mm × 90mm size.

2) infiltrate: the all-glass paper of two 60mm × 90mm is immersed in saliva simulated solution, after saturated, takes out all-glass paper, and wipe unnecessary liquid at the edge of container; The compound method of saliva simulated solution is as follows: by 0.33g sodium chloride (NaCl), 0.83g dipotassium hydrogen phosphate (K ₂hPO ₄3H ₂o), 0.53g sal tartari (K ₂cO ₃) and 0.75g potassium chloride (KCl) be dissolved in about 900mL water, add 0.17g magnesium chloride (MgCl ₂6H ₂and 0.15g lime chloride (CaCl O) ₂2H ₂o), constantly stir until all agent dissolves are complete, then drip hydrochloric acid solution, until pH is stabilized in 6.8 ± 0.1, finally solution is transferred in 1000mL volumetric flask, add water to scale.

3) pressing contact: all-glass paper shiny surface after an infiltration is upwards placed on glass plate, tipping paper sample is placed on it rapidly, then by all-glass paper shiny surface after another infiltration to lower cover on sample, again second glass plate is placed on the all-glass paper of second, with colourless polyethylene film, its entirety is wrapped up subsequently, prevent that edge is dry, finally by placed on it 1kg counterweight, under 40 ± 2 DEG C of temperature environments, place 10min, counterweight and glass plate can preheatings in advance at (40 ± 2) DEG C.

4) open and dry: open polyethylene film, overlapping all-glass paper is opened, discard the all-glass paper that tipping paper sample contacts with the non-printing surface of tipping paper, the all-glass paper contacting with tipping paper printing surface is placed on 3 glass bars that close on, sunshade (hides, prevent solar radiation), make it air-dry under field conditions (factors).

5) color difference meter evaluation: measure respectively the color of sample all-glass paper and blank glass fibrous paper with color difference meter, aberration between the two calculates with CIELAB unit, and changed the progression of staining fastness by formula.Concrete mode is:

5. according to the form below is reported definite staining fastness progression according to the staining fastness progression calculating.

Figure 201410113704X100002DEST_PATH_IMAGE003

Beneficial effect of the present invention: the method can simulate human oral cavity and cigarette filter tip on the contact process of tipping paper, method is simple to operate, measuring speed is fast; And compared with gray scale ocular estimate, this law adopts color difference meter to carry out staining fastness evaluation, and result is more objective and accurate, has avoided people's subjective mood and the interference of objective environment, favorable reproducibility.

Brief description of the drawings

Fig. 1 is tipping paper and all-glass paper and glass plate laminating schematic diagram in process of the test.

Embodiment

The following experimental data of the present invention and Fig. 1 are further described:

One, cigarette tipping paper sample to be measured: 6, comprise 4 kinds of mode of printings.

Two, material and instrument

1, the all-glass paper of staining (cutting into 60mm × 90mm) not: the correlation parameter of the commercialization all-glass paper of choosing:

A) quantitative: 65g/m ²;

B) capillary imbibition height recording according to GB/T 461.1 is 200mm/10min;

C) not containing fluorescer and wet strength agent;

D) containing cellulose fiber not.

2, colourless transparent glass plate, 60mm × 90mm.

3, water white transparency polyethylene film.

4, counterweight, 1kg.

5, saliva simulated solution.

6, color difference meter: observation aperture is 25mm, output D ₆₅standard illuminants 10 ^odata under observer.

Three, method step

1, sample preparation

After choosing tipping paper sample, cut or clip 50mm × 30mm sample, it is monolateral that sample comprises a tipping paper.

2, infiltrate

By 2 not the all-glass paper of staining (60mm × 90mm) be immersed in saliva simulated solution, after saturated, take out all-glass paper, and wipe unnecessary liquid at the edge of container.

3, bear a heavy burden and contact

The all-glass paper shiny surface of 1 saturated not staining is upwards placed on glass plate, sample is placed on it rapidly, then by the all-glass paper shiny surface of another saturated not staining to lower cover on sample, again second glass plate is placed on the all-glass paper of not staining, finally with polythene strip, its entirety is wrapped up, prevent that edge is dry.Subsequently by placed on it 1kg counterweight, at (40 ± 2) DEG C, place 10min, attention will prevent daylight direct irradiation.

4, dry

After 10min, open polyethylene film, overlapping all-glass paper is opened, discard the all-glass paper that tipping paper sample contacts with the non-printing surface of tipping paper, then the all-glass paper contacting with tipping paper printing surface is placed on 3 glass bars that close on, and the diameter of glass bar is 8mm-10mm, by the one side directly contacting with tested sample upwards, and built, prevent solar radiation, make it air-dry under field conditions (factors), note not encountering all-glass paper.

5, assessment

Adopt color difference meter to measure respectively the color of blank glass fibrous paper and sample all-glass paper, calculate the staining fastness rank of 6 tipping paper samples by formula (1) (2) (3) (4) (5) (6) (7), its result is as shown in table 1.Use ocular estimate at D simultaneously ₆₅under light source, observe, with the comparison of GB251 standard gray scale, the staining colour fastness of 6 tipping paper samples is 5 grades, and illustration method accurately and reliably.

The colour fastness of the resistance to saliva test findings of table 1 tipping paper sample

Sample number into spectrum	Aberration (Δ E _CIELAB）	Luminosity equation (L*)	The SSR calculating	The SSR of report
					J1	0.42	-0.15	4.94	5
J2	0.27	-0.06	4.96	5
					J3	0.37	-0.17	4.95	5
J4	0.07	0.00	4.99	5
					J5	0.56	-0.18	4.92	5
J6	1.04	-0.30	4.85	5

Claims

1. the assay method of the cigarette tipping paper colour fastness of resistance to saliva, it is characterized in that: tipping paper sample is fitted and contacted up and down with two blocks of all-glass papers that infiltrated by saliva simulated solution, under 40 DEG C of temperature environments He under 1kg heavy burden pressure, place after 10min, open, all-glass paper is dried naturally, by the staining degree of color difference meter evaluation all-glass paper.

2. the assay method of the cigarette tipping paper colour fastness of resistance to saliva according to claim 1, is characterized in that: concrete steps are as follows:

1) sample preparation: tipping paper sample is cut into the sample of 50mm × 30mm size, all-glass paper cuts into 60mm × 90mm size;

2) infiltrate: the all-glass paper of two 60mm × 90mm is immersed in saliva simulated solution, after saturated, takes out all-glass paper, and wipe unnecessary liquid at the edge of container;

3) pressing contact: all-glass paper shiny surface after an infiltration is upwards placed on glass plate, tipping paper sample is placed on it rapidly, then by all-glass paper shiny surface after another infiltration to lower cover on sample, again second glass plate is placed on the all-glass paper of second, with colourless polyethylene film, its entirety is wrapped up subsequently, prevent that edge is dry, finally by placed on it 1kg counterweight, under 40 DEG C of temperature environments, place 10min;

4) open and dry: open polyethylene film, overlapping all-glass paper is opened, the all-glass paper contacting with tipping paper printing surface is placed on 3 glass bars that close on, sunshade, makes it air-dry under field conditions (factors);

5) color difference meter evaluation: measure respectively the color of sample all-glass paper and blank glass fibrous paper with color difference meter, aberration between the two calculates with CIELAB unit, and changed the progression of staining fastness by formula.

3. the assay method of the cigarette tipping paper colour fastness of resistance to saliva according to claim 1, is characterized in that: the correlation parameter of described all-glass paper is as follows:

A) quantitative: 65 g/m ²～70g/m ²;

B) capillary imbibition height recording according to GB/T 461.1 is 190mm/10min～210mm/10min;

C) not containing fluorescer and wet strength agent;

D) containing cellulose fiber not.