Some standard content:
ICS 65.160
Registration number: 10494-2002
Tobacco Industry Standard of the People's Republic of China
YC/T 16. 1—2002
Replaces YC/T16—1994
Reconstituted tobacco
Part 1: Roller-formation process
Reconstituted tobacco--Part 1: Roller-formation processePromulgated on 2002-05-14
State Tobacco Monopoly Administration
Implementation on 2002-07-01
YC/T16.1--2002
This part of YC/T16 is a revision of YC/T16-1994 "Tobacco Sheets". In terms of writing format, the original independent standard was changed to YC/T16.12002 "Reconstituted Tobacco Part 1: Rolling Method". This part replaces YC/T16-1994.
When formulating this part, the indicators in YC/T16-1994 that are not related to actual production were deleted, and appearance requirements were added.
This series of standards consists of three parts:
YC/T16.1 Reconstituted Tobacco Part 1: Rolling Method YC/T16.2 Reconstituted Tobacco Part 2: Thick Pulp Method YC/T16.3 Reconstituted Tobacco Part 3: Papermaking Method This part was proposed by the State Tobacco Monopoly Administration. This part is under the jurisdiction of the National Tobacco Standardization Technical Committee (TC144). The drafting unit of this part: Tobacco Flakes Research Laboratory of China National Tobacco Corporation. The main drafters of this part are Chen Xiaoyu, Zhao Yantang, Shang Qingji, Gao Yan, Shan Hongguang. The previous versions of the standard replaced by this part are: YC/T16-1994. 520
1 Scope
Reconstituted tobacco Part 1: Roller pressing method
YC/T 16.1--2002
This part of YC/T16 specifies the terms and definitions, requirements, sampling, test methods, inspection rules, labeling, packaging and storage and transportation of roller-pressed reconstituted tobacco.
This part is applicable to reconstituted tobacco produced by roller pressing. 2 Normative references
The clauses in the following documents become the clauses of this part through reference in this part of YC/T16. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this part, however, parties reaching an agreement based on this part are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version applies to this part. GB/T451.2-1989 Determination of the basis weight of paper and paperboard (eqvISO536:1976) GB/T451.3-1989 Determination of the thickness of paper and paperboard (eqyISO438:1980) GB/T457-1989 Determination of the folding endurance of paper (eqvISO5626:1978) GB/T12914 Determination of the tensile strength of paper and paperboard (constant rate of tension method) (e9vISO1924-2) GB/T16447 Atmospheric environment for conditioning and testing of tobacco and tobacco products (idtISO3402) YC/T28.8--1996 Determination of the physical properties of cigarettes Part 8: Moisture content YC/T152--2001 Determination of the filling value of cigarette cut tobacco 3 Terms and Definitions
This part uses the following terms and definitions.
Grammage
The mass of reconstituted tobacco per square meter, expressed in grams per square meter. 3.2
ThicknessWww.bzxZ.net
The thickness of reconstituted tobacco under a certain pressure, expressed in millimeters. 3.3
Tensile strength
The maximum tension that a unit cross-sectional area of reconstituted tobacco can withstand, expressed in Newtons per square millimeter. 3.4
Folding strength
The number of times a reconstituted tobacco leaf can withstand reciprocating folding under a certain tension, expressed in times. 3.5
Water resistance
Water resistance
The time that reconstituted tobacco leaves can withstand immersion without disintegrating, expressed in minutes. 3.6
Determination of filling powerThe volume of unit mass of reconstituted tobacco shreds under a certain pressure, expressed in cubic centimeters per gram. 521
YC/T16.1—2002
blemish
Defects formed by undispersed fiber clusters, uncrushed tobacco stems, insufficiently swollen carboxymethyl cellulose (CMC) and other foreign matter on the surface of reconstituted tobacco leaves.
3.8 Product classification
According to the different blending methods of reconstituted tobacco leaves, reconstituted tobacco leaves are divided into filamentary reconstituted tobacco leaves (Class A) and sheet reconstituted tobacco leaves (Class B). According to the different blending positions of reconstituted tobacco leaves, filamentary reconstituted tobacco leaves are divided into A1 and A2 reconstituted tobacco leaves. Class A1 reconstituted tobacco leaves refer to filamentary reconstituted tobacco leaves blended in the process of cigarette shredding before or after baking. Class A2 reconstituted tobacco leaves refer to filamentary reconstituted tobacco leaves blended in the process of cigarette shredding after the shredding section. 4 Requirements
The tobacco raw materials used to make reconstituted tobacco should not be deteriorated, free of pollution, foreign matter, and the dust content should be less than 2%. 4.2 The auxiliary materials used to make reconstituted tobacco should comply with the relevant national food hygiene standards. 4.3
The reconstituted tobacco should have no obvious odor and no changes. 4.4 The physical and technical requirements of reconstituted tobacco are shown in Table 1. Table Physical indicators of reconstituted tobacco
Tensile strength
Folding endurance
Water resistance
Filling value
cm°/g
Vertical ≥2.8
Vertical ≥30
Technical requirements
Design standard value±1
Design standard value±0.01
Vertical ≥3.2
Vertical ≥100
>5 (initial temperature 25℃±5℃)>5 (initial temperature 80℃±5C)≥3.5
Note: The design standard values of thickness and moisture are formulated by the enterprise according to actual production needs. 4.5 Appearance
4.5.1 The continuous drawing rate of filamentary reconstituted tobacco leaves should not be greater than 5%. 4.5.2 The continuous adhesion rate of sheet-shaped reconstituted tobacco leaves should not be greater than 5%. ≥3.5
4.5.3 The number of white spots with a diameter greater than 2.0mm on the surface of reconstituted tobacco leaves shall not exceed 10 in 100cm2. 5 Sampling
5.1 Randomly sample five times for the same production batch, with each time interval not less than 30min. B
Horizontal ≥2.0
Horizontal ≥100
>5 (initial temperature 80℃±5C)
5.2 Each time, draw and cut 50 samples of 250mm×200mm (vertical×horizontal) at the exit of the oven of the production line. The samples shall be free of damage and wrinkles. After mixing the five samples, randomly select 100 of them as test samples. 5.3 Reconstituted tobacco shreds and slices are extracted at the exit of the shredder or slicer. Five boxes are randomly selected from the packed boxes, and 1 kg is sampled each time (box). After five samples are mixed, 2 kg is taken as the test sample by quartering. 5.4 Preparation of experimental samples for physical quality of reconstituted tobacco leaves 5.4.1 Before testing, the moisture content of the test samples shall be adjusted according to GB/T16447. 5.4.2 The moisture content of the moisture test samples shall not be adjusted, and the water resistance test samples shall reach the curing time required by the process. 5.4.3 See Table 2 for sample specifications.
Test items
Thickness, quantitative, appearance (white spots)
Tensile strength, folding endurance
Water resistance
Table 2 Sample specifications
Sample specifications
100×100
150×15
50×50
YC/T 16. 12002
Or discs of equal area
Divided longitudinally and transversely
5.4.4 The length and width error of the sample cut is ±0.1mm, the longitudinal and transverse deflection angle is not greater than 5°, the cut is neat, without burrs and any damage.
5.4.5 The sample of the filling value of filamentary reconstituted tobacco leaves is prepared by the quartering method. The sample of the filling value of sheet-shaped reconstituted tobacco leaves is prepared by the quartering method after being cut according to the actual production specifications.
6 Test method
6.1 Environmental conditions for adjustment and testing
Perform according to GB/T16447.
6.2 Moisture
Take 30g of sample and test according to YC/T28.8-1996. 6.3 Quantity
Perform the test according to GB/T451.2-1989. 6.4 Thickness
Perform the test according to GB/T451.3-1989. 6.5 Tensile strength
6.5.1 Technical requirements of the instrument
Use a reconstituted tobacco micro electronic tensile testing machine or tensile strength tester that meets the following technical requirements: The center lines of the upper and lower sample clamps should be parallel to the direction of force on the sample, and the sample should be kept in the same plane during the force process. The distance between the sample clamps is 100mm
- The accuracy of the tensile force at break is within ±1%; The time from the start of the load to the break of the sample is (20±5)S. The effective measurement range of the instrument is between 10% and 90% of the total amount. 6.5.2 Measurement
The field test is carried out in accordance with the provisions of GB/T12914. Each sample is tested 14 times in the longitudinal and transverse directions respectively. Remove the two maximum and two minimum values of the absolute tensile force, and calculate the tensile strength with the remaining data. The tensile strength calculation result is rounded to 0.1N/mm2. 6.6 Folding endurance
, 6.6.1 Technical requirements of the instrument
The folding speed is 60 times/min, the folding angle is 90°, and the initial folding tension is 0.1N. 6.6.2 Determination
The test is carried out in accordance with the provisions of GB/T457--1989. The arithmetic mean of the number of folding times tested 10 times is used to represent the folding resistance. The calculated result is rounded to an integer.
6.7 Water resistance
6.7.1 Technical requirements of the instrument
Shaking frequency (120±2) times/min, amplitude 25mm (double amplitude 50mm), shaking for 5s every 30s, total time 5min, time control accuracy ±1s.
6.7.2 Determination steps
Take five samples and put them in a 250ml beaker, add 100ml (80℃±5℃ or 25℃±5℃) of full water. Place it on the shaking table, start the 523
YC/T16.1-2002
instrument for determination, and record the time when the sample does not disperse. 6.8 Filling value
Test according to the provisions of YC/T152~-2001. 6.9 Appearance
6.9.1 Continuous thread and strip rate of shredded reconstituted tobacco Take 1.0kg of shredded reconstituted tobacco shreds and reduce it to about 300.0g by quartering method as the sample. Pick out the continuous thread and strip of reconstituted tobacco shreds and weigh them. Calculate the continuous thread and strip rate of shredded reconstituted tobacco shreds by formula (1): (%) =
Where:
Continuous thread and strip rate of shredded reconstituted tobacco shreds;
Mass of continuous thread and strip of reconstituted tobacco shreds, in grams (g); w-mass of sample, in grams (g).
6.9.2 The sticking rate of reconstituted tobacco sheets Denpin Dentsu
+....++*++( 1)
Randomly select about 5.0 kg of reconstituted tobacco leaves as samples for weighing, pick out the connected and stuck reconstituted tobacco leaves for weighing, and calculate the sticking rate of connected pieces according to formula (2):
α(%)
Wherein:
V---the sticking rate of reconstituted tobacco sheets; d
d--the mass of the connected and stuck reconstituted tobacco leaves, in kilograms (kg); w--the mass of the sample, in kilograms (kg). 6.9.3 White spots
Take 10 samples at random, measure with a ruler and count the number of white spots with a diameter greater than 2.0 mm on the samples. The arithmetic mean of the number of white spots on the 10 samples and round it off to an integer is used to represent the white spots of the batch of reconstituted tobacco leaves. 7 Inspection rules
7.1 The quality of reconstituted tobacco leaves is expressed in percentage, with the highest score being 100 points. 7.2 According to the test results and technical requirements, determine the quality of each indicator. If each single item meets the technical requirements and tolerance regulations in Table 1, the corresponding item can get full marks; otherwise, it will get zero marks.
7.3 The score levels of each indicator are shown in Table 3.
Table 3 Index score level
Tensile strength/(N/mm2)
Folding endurance/time
Filling value/(cm2/g)
Water resistance/min
Moisture/%
Thickness/mm
Basis/(g/m2)
7.4The appearance score is the sum of the scores of each appearance index. 524
7.5The scores of each appearance index are shown in Table 4. Item
Table 4 Appearance index score level
Continuous thread drawing rate of filamentary reconstituted tobacco leaves
7.6The sum of the scores of each individual item is the quality score of reconstituted tobacco leaves. 7.7Quality judgment
Continuous adhesion rate of sheet-shaped reconstituted tobacco leaves
7.7.1The quality score of reconstituted tobacco leaves indicates the comprehensive technical level of reconstituted tobacco leaves. 7.7.2 Factors that affect the quality of reconstituted tobacco.
YC/T16.1--2002
7.7.2.1 The tensile strength of reconstituted tobacco is less than 2.0N/mm2 in the longitudinal direction for A1, less than 3.0N/mm2 in the longitudinal direction for A2, and less than 1.8 N/mm in the transverse direction for B.
7.7.2.2 The folding endurance of reconstituted tobacco is less than 15 times in the longitudinal direction for A1, less than 100 times in the longitudinal direction for A2, and less than 30 times in the transverse direction for B. 7.7.2.3 The water resistance of reconstituted tobacco of types A2 and B is less than 2min. The continuous drawing rate of filamentary reconstituted tobacco is greater than 30%, and the continuous adhesion rate of sheet-shaped reconstituted tobacco is greater than 30%. 7.7.2.4
7.7.2.5 The reconstituted tobacco is mildewed.
7.7.2.6 The reconstituted tobacco has a distinct odor. 7.7.2.7 The raw materials or auxiliary materials used to manufacture reconstituted tobacco do not meet the requirements of 4.1 and 4.2. 8
Labeling, packaging and purchase and transportation
8.1 Labeling
The packaging should indicate the product name, trademark, specifications, production date, manufacturer name, address, packaging size, net weight, gross weight and safety mark.
8.2 Packaging
The packaging should be sealed with odorless moisture-proof materials. The packaging should be complete and firm. 8.3 Storage and transportation
During storage and transportation, it should be protected from rain, moisture, sunlight, contact with odorous items and contamination. 5253 White spots
Take 10 samples at random, measure with a ruler and count the number of white spots with a diameter greater than 2.0 mm on the samples. The arithmetic mean of the number of white spots on the 10 samples and round it off to an integer is used to represent the white spots of the batch of reconstituted tobacco leaves. 7 Inspection rules
7.1 The quality of reconstituted tobacco leaves is expressed in percentage, with the highest score being 100 points. 7.2 According to the test results and technical requirements, determine the quality of each indicator. If each single item meets the technical requirements and tolerance regulations in Table 1, the corresponding item can get full marks; otherwise, it will get zero marks.
7.3 The score level of each indicator is shown in Table 3.
Table 3 Index score level
Tensile strength/(N/mm2)
Folding endurance/time
Filling value/(cm2/g)
Water resistance/min
Moisture/%
Thickness/mm
Basis/(g/m2)
7.4The appearance score is the sum of the scores of each appearance index. 524
7.5The scores of each appearance index are shown in Table 4. Item
Table 4 Appearance index score level
Continuous thread drawing rate of filamentary reconstituted tobacco leaves
7.6The sum of the scores of each individual item is the quality score of reconstituted tobacco leaves. 7.7Quality judgment
Continuous adhesion rate of sheet-shaped reconstituted tobacco leaves
7.7.1The quality score of reconstituted tobacco leaves indicates the comprehensive technical level of reconstituted tobacco leaves. 7.7.2 Factors that affect the quality of reconstituted tobacco.
YC/T16.1--2002
7.7.2.1 The tensile strength of reconstituted tobacco is less than 2.0N/mm2 in the longitudinal direction for A1, less than 3.0N/mm2 in the longitudinal direction for A2, and less than 1.8 N/mm in the transverse direction for B.
7.7.2.2 The folding endurance of reconstituted tobacco is less than 15 times in the longitudinal direction for A1, less than 100 times in the longitudinal direction for A2, and less than 30 times in the transverse direction for B. 7.7.2.3 The water resistance of reconstituted tobacco of types A2 and B is less than 2min. The continuous drawing rate of filamentary reconstituted tobacco is greater than 30%, and the continuous adhesion rate of sheet-shaped reconstituted tobacco is greater than 30%. 7.7.2.4
7.7.2.5 The reconstituted tobacco is mildewed.
7.7.2.6 The reconstituted tobacco has a distinct odor. 7.7.2.7 The raw materials or auxiliary materials used to manufacture reconstituted tobacco do not meet the requirements of 4.1 and 4.2. 8
Labeling, packaging and purchase and transportation
8.1 Labeling
The packaging should indicate the product name, trademark, specifications, production date, manufacturer name, address, packaging size, net weight, gross weight and safety mark.
8.2 Packaging
The packaging should be sealed with odorless moisture-proof materials. The packaging should be complete and firm. 8.3 Storage and transportation
During storage and transportation, it should be protected from rain, moisture, sunlight, contact with odorous items and contamination. 5253 White spots
Take 10 samples at random, measure with a ruler and count the number of white spots with a diameter greater than 2.0 mm on the samples. The arithmetic mean of the number of white spots on the 10 samples and round it off to an integer is used to represent the white spots of the batch of reconstituted tobacco leaves. 7 Inspection rules
7.1 The quality of reconstituted tobacco leaves is expressed in percentage, with the highest score being 100 points. 7.2 According to the test results and technical requirements, determine the quality of each indicator. If each single item meets the technical requirements and tolerance regulations in Table 1, the corresponding item can get full marks; otherwise, it will get zero marks.
7.3 The score level of each indicator is shown in Table 3.
Table 3 Index score level
Tensile strength/(N/mm2)
Folding endurance/time
Filling value/(cm2/g)
Water resistance/min
Moisture/%
Thickness/mm
Basis/(g/m2)
7.4The appearance score is the sum of the scores of each appearance index. 524
7.5The scores of each appearance index are shown in Table 4. Item
Table 4 Appearance index score level
Continuous thread drawing rate of filamentary reconstituted tobacco leaves
7.6The sum of the scores of each individual item is the quality score of reconstituted tobacco leaves. 7.7Quality judgment
Continuous adhesion rate of sheet-shaped reconstituted tobacco leaves
7.7.1The quality score of reconstituted tobacco leaves indicates the comprehensive technical level of reconstituted tobacco leaves. 7.7.2 Factors that affect the quality of reconstituted tobacco.
YC/T16.1--2002
7.7.2.1 The tensile strength of reconstituted tobacco is less than 2.0N/mm2 in the longitudinal direction for A1, less than 3.0N/mm2 in the longitudinal direction for A2, and less than 1.8 N/mm in the transverse direction for B.
7.7.2.2 The folding endurance of reconstituted tobacco is less than 15 times in the longitudinal direction for A1, less than 100 times in the longitudinal direction for A2, and less than 30 times in the transverse direction for B. 7.7.2.3 The water resistance of reconstituted tobacco of types A2 and B is less than 2min. The continuous drawing rate of filamentary reconstituted tobacco is greater than 30%, and the continuous adhesion rate of sheet-shaped reconstituted tobacco is greater than 30%. 7.7.2.4
7.7.2.5 The reconstituted tobacco is mildewed.
7.7.2.6 The reconstituted tobacco has a distinct odor. 7.7.2.7 The raw materials or auxiliary materials used to manufacture reconstituted tobacco do not meet the requirements of 4.1 and 4.2. 8
Labeling, packaging and purchase and transportation
8.1 Labeling
The packaging should indicate the product name, trademark, specifications, production date, manufacturer name, address, packaging size, net weight, gross weight and safety mark.
8.2 Packaging
The packaging should be sealed with odorless moisture-proof materials. The packaging should be complete and firm. 8.3 Storage and transportation
During storage and transportation, it should be protected from rain, moisture, sunlight, contact with odorous items and contamination. 525
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