CN107764732B - Hair products flexibility detection method based on dynamometry - Google Patents
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Abstract
The hair products flexibility detection method based on dynamometry that the invention discloses a kind of, the test method is by extracting hair products sample, hair products sample is tested, obtain the maximum resistance value in the at the uniform velocity folding process of hair products sample of topknot line density, standard comb of hair products sample and the average water droplet height or height of being averagely on tenterhooks of average Resistance Value and more hairs in hair products sample, recycle hair products flexibility model seek index of correlation for evaluate hair products softness and smooth degree.It is more objective reliable by the method for experimental test, traditional sensory feel by people is avoided to evaluate the existing phenomenon for causing evaluation inaccuracy due to the subjective factor of people.Hair products flexibility detection method provided by the invention based on dynamometry can evaluate the flexibility of hair products by maximum hair comb drag, minimum submissive coefficient, average hair comb drag and average these all indexs of submissive coefficient, and evaluation is more comprehensive comprehensive.
Description
Technical field
The present invention relates to hair products detection technique fields, and in particular to a kind of hair products flexibility detection based on dynamometry
Method.
Background technique
It is raw material, a series of vacation being process by production process that hair products, which are by human hair, animal hair or chemical fiber wire,
On the one hand hair products, hair products can be used for decorating the hair style of people, such as make up and lack hair, alopecia physiological defect, another party
Face can be used for cosmetology teaching.Nearly 5 years, hair product industry average annual growth was held at 18% or more, it is contemplated that following several
Year, the world market scale of hair product industry will continue to increase rapidly speed, and domestic hair product industry scale also can be with city
Field demand increase enters the high speed expansion phase.
Hair products various types, color, feel, elasticity and sag, the flexibility of different hair products are all different.It hangs down
Degree, flexibility reflect the difference of hair products material, decide quality, price, appearance, using effect of hair products etc..
The hair products feel having good quality is smooth, shape is true to nature, can mould it is good, meet the aesthetic image of people.It is soft
Pliable is an important references factor for evaluating hair products quality, and it is soft to have not been used to detection hair products both at home and abroad at present
Pliable method, it is difficult that this causes the flexibility of hair products to evaluate, and also gives R & D design, production and processing, the trade pin of hair products
It sells, academic exchange, personnel training bring inconvenience.Hair products flexibility detection technique and standard are formulated, can be sent out for specification China
Product industry lays good basis, and promotion hair product industry is quick, develops in a healthy way, and improves product quality, helps to promote China
The credit worthiness of hair products expands outlet, and increase foreign exchange earnings from exports ability, further consolidates the ground of China's hair products first outlet state
Position.
Summary of the invention
The hair products flexibility detection method based on dynamometry that the technical problem to be solved in the present invention is to provide a kind of solves
In the prior art due to not for detecting the problem of the method for hair products flexibility and bring hair products quality assessment difficulty.
In order to solve the above technical problems, following technology path is taken in present invention research:
Sample is organized into the neat topknot in one end, sample is neatly held and is held, and the other end naturally droops, by standard comb
Insertion sample is simultaneously moved down along sample constant speed, then the force value in measurement standard comb folding process measures the topknot line of the topknot
Density, and using being on tenterhooks method or water droplet method measures hair and is on tenterhooks height or water droplet height, these data meters obtained according to measurement
Calculation obtains every flexibility index (hair comb drag, submissive coefficient etc.)；These flexibility indexs can objectively reflect
Know the soft and smooth degree of the hair products of length and quality under prescribed conditions.
Specific technical solution is as follows:
(1) hair products sample to be measured is extracted, damping is carried out to the hair products sample；
(2) the topknot line density of gained hair products sample is walked in detection；
(3) maximum resistance value and average Resistance Value of the measurement comb in the hair products sample at the uniform velocity folding process；
(4) the average water droplet height of more hairs in the hair products sample is measured or height of being averagely on tenterhooks；
(5) outstanding according to the topknot line density, maximum resistance value, mean resistance value and average water droplet height or averagely
Heart height, using hair products flexibility model obtain the hair products sample hair comb drag and/or submissive coefficient.
Preferably, in the step (5), the hair products flexibility model include maximum hair comb drag model and/
Or minimum submissive Modulus Model,
The maximum hair comb drag model are as follows:
Wherein,For maximum hair comb drag,For the maximum resistance value,For the topknot line density；
The submissive Modulus Model of minimum are as follows:
Wherein,For minimum submissive coefficient, h is the average water droplet height or height of being averagely on tenterhooks.
Preferably, in the step (5), the hair products flexibility model include average hair comb drag model and/
Or average submissive Modulus Model,
The average hair comb drag model are as follows:
Wherein,For average hair comb drag,For the mean resistance value；
The average submissive Modulus Model are as follows:
Wherein, C is average submissive coefficient.
Preferably, in the step (1), the environment for carrying out damping to the hair products sample is advised according to GB/T 6529
Fixed normal atmospheric environment.
Preferably, in the step (1), the detection sample conduct of several groups certain mass is extracted in hair products to be measured
The hair products sample to be measured.
Preferably, in the step (2), the method for obtaining the topknot line density of hair products sample to be measured is as follows:
A. the resulting hair products sample of the step (1) is organized into the topknot that one end is neat and entirety is straight；
B. the principal length L of the topknot is measured；
C. it weighs with scale and obtains the quality G of the topknot；
D. the topknot line density is sought.
Preferably, the step (3) specifically includes:
A., hair products sample obtained by the step (2) is organized into one end is neat, the other end naturally droops and whole straight
Topknot；
B. it by the standard comb insertion topknot and along the topknot uniform descent, records the standard comb and was declining
The average test Resistance Value and full test Resistance Value being subject in journey；
C. at least 3 combs are carried out along the test of the topknot uniform descent, record each time the comb along institute
State the average test Resistance Value and full test Resistance Value that topknot uniform descent is subject to；
D. to testing the average test Resistance Value averaged of acquisition each time as the mean resistance value, and
To testing the full test Resistance Value averaged of acquisition each time as the maximum resistance value.
Preferably, the step (4) specifically includes:
A. a certain number of hairs are randomly selected from the resulting hair products sample of the step (3), described in each
It marks at the both ends of hair fixed length spacing；
B. take gained hair respectively, the both ends cross-fixing that will be marked, make the bending of fixed length pitch portions in drops or
It is on tenterhooks shape, standing measures its water droplet height or be on tenterhooks height, i.e. hair crosspoint to hair bending section minimum point after a certain period of time
The distance between；
C. it is averaged as average water droplet height or height of being averagely on tenterhooks.
Preferably, the comb is standardized comb, it is desirable that its surface is smooth, does not generate electrostatic, and material can be
Stainless steel, ox horn, organic glass, sound wood etc., are such as selected as wooden comb, then can refer to standard QBT 4075-2010.
The beneficial technical effect of the present invention lies in:
1. hair products sample is tested by extracting hair products sample, the topknot line density of acquisition hair products sample,
More in maximum resistance value of the comb in the at the uniform velocity folding process of hair products sample and average Resistance Value and hair products sample
The average water droplet of hair/height of being on tenterhooks, recycles hair products flexibility model to seek index of correlation for evaluating the soft of hair products
Soft degree and smooth degree.Method provided by the invention is the method by experimental test, rather than traditional sense by people
Official feels to evaluate the softness of hair products and smooth degree, more objective reliable, avoids commenting caused by the subjective factor of people
Valence inaccuracy.
2. the hair products flexibility detection method provided by the invention based on dynamometry can by maximum hair comb drag,
Minimum submissive coefficient, average hair comb drag and a variety of pairs of hair products in average these indexs of submissive coefficient softness and
Smooth degree is evaluated, and evaluation is more comprehensive comprehensive.
3. the hair products flexibility detection method good reliability provided by the invention based on dynamometry, have it is very high can
The index precision of realisation and reproducibility, these evaluation hair products flexibility obtained is high, make evaluation result it is accurate, can
It leans on.
Detailed description of the invention
Fig. 1 is the flow chart for the hair products flexibility detection method based on dynamometry that the embodiment of the present invention 1 provides；
Fig. 2 is the detail flowchart of step S20 in Fig. 1；
Fig. 3 is the detail flowchart of step S30 in Fig. 1；
Fig. 4 is the detail flowchart of step S40 in Fig. 1；
Fig. 5 is the schematic diagram that hair water droplet height is measured in the embodiment of the present invention 1；
Fig. 6 is that measurement hair is on tenterhooks the schematic diagram of height in the embodiment of the present invention 1.
Specific embodiment
Illustrate a specific embodiment of the invention with reference to the accompanying drawings and examples, but following embodiment is used only in detail
It describes the bright present invention in detail, does not limit the scope of the invention in any way.
The involved or test relied on or measurement method are then the art unless otherwise instructed in following embodiment
Conventional method, those skilled in the art can make conventional selection or be adaptively adjusted according to concrete application scene.Below
The devices such as components, structure involved in embodiment, mechanism are then unless otherwise instructed conventional commercial product.
Embodiment 1
Hair products flexibility detection method provided by the invention based on dynamometry, can be used for detecting the submissive of hair products
Property.Comb is used exclusively for arranging the tool of the hair including hair products, the resistance that comb is subject to when combing hair products
There are much relations with the submissive degree of hair products.The embodiment of the present invention proposes the index of two expression hair products flexibility: hair
Comb drag and submissive coefficient.
The size of hair comb drag and the size of submissive coefficient can be used for indicating hair tonic, shelves hair, Se Fa or clockwork spring product
Flexibility, hair tonic refer to crude human hair, and shelves hair refers to the human hair tied up according to different length stepping, and color hair refers to through locating
Reason makes hair form the human hair or synthetic hair of different colours, and clockwork spring refers to the hair products for sending out evenly distributed by color to link, this
It is all a bit important and common product in hair products.
As shown in Figure 1, the hair products flexibility detection method based on dynamometry includes:
S10: extracting hair products sample to be measured, carries out damping to the hair products sample.
For the hair products product such as such as hair tonic, shelves hair, Se Fa or clockwork spring, extracted in the product of needs assessment flexibility to
Few 3 groups of detection samples are not less than 100 grams as hair products sample, the quality of every group of hair products sample.The hair products sample of extraction
Damping in advance 24 hours in normal atmosphere (meeting GB/T 6529 to provide), hair products sample before the test, should be placed it in
Damping is carried out under normal atmosphere, during damping, should enable air to unimpededly flow through the hair products sample.Damping prevents hair products
It is dry or excessively moist, it prevents from influencing its flexibility.
S20: the topknot line density of step gained hair products sample in detection.
Topknot line density is the quality of the hair products topknot of unit length, and topknot line density depends on the hair system for test
Product sample.As shown in Fig. 2, this step specifically includes:
S201: one group of hair products sample is organized into the topknot that one end is neat and entirety is straight.It will using dedicated workholder
One end of one group of hair products neatly clamps, remaining two groups of detection sample is spare.
S202: the principal length L of topknot clamped by measurement clamper, principal length L are accurate to 0.1cm.
S203: weighing with scale and obtain the quality G of topknot, and quality G is accurate to 0.1mg.
S204: according toSeek the topknot line density of topknot clamped by clamper.
According to formulaThe topknot line density soughtUnit be tex(Tekes), be line it is close
The standard unit of degree.
S30: maximum resistance value and average Resistance Value of the measurement standard comb in the at the uniform velocity folding process of hair products sample.
Here standard comb is that surface is smooth, do not generate electrostatic, quality is 10g~100g, comb tooth density is 3 needles/cm
Stainless steel material comb, the smooth degree of resistance and hair products that standard comb insertion topknot is subject to along its folding process
It is related.The hair products sample measured in the step is in step S20 for detecting the hair products sample of hair products topknot line density.
As shown in figure 3, this step specifically includes:
S301: one group of hair products sample is organized into the topknot that one end is neat, the other end naturally droops and entirety is straight.Hair
Beam cannot be influenced the resistance of standard comb by its own state, for example the hair in topknot cannot have intersection.
S302: being inserted into topknot and along topknot uniform descent for standard comb, record standard comb during decline by
Average test Resistance Value and full test Resistance Value, average test Resistance Value and full test Resistance Value are accurate to 0.1cN, cN
Represent li ox.Standard comb is inserted into topknot and is 10mm/min along the decrease speed of the topknot uniform descent, and dropping distance is
The gauge length of 200mm, topknot are 10mm, and gauge length refers to starting distance of the standard comb away from clamper.
S303: carry out at least 3 standard combs along topknot uniform descent test, record each time standard comb along topknot
The average test Resistance Value and full test Resistance Value that uniform descent is subject to, 3 tests are directed to same group of hair products sample.
S304: to testing the average test Resistance Value averaged of acquisition each time as final mean resistance value,
And to testing the full test Resistance Value averaged of acquisition each time as final maximum resistance value.
S40: the average water droplet height of more hairs in measurement hair products sample or height of being averagely on tenterhooks.
Hair products sample of the hair extracted in the step in step S30.As shown in figure 4, this step measures hair
Average water droplet height specifically include:
S401: appointing from hair products sample and take out more hairs, mark to the both ends of each hair fixed length spacing, fixed length
Spacing is 50mm.Fixed length spacing refers to a part of regular length on all hairs of extraction, in the part of each hair
Both ends make marks.
S402: the both ends for the fixed length pitch portions that a hair is marked are clamped, and making fixed length pitch portions is in drops,
The height between the top and bottom end of the hair part of drops is measured after standing 1 minute as water droplet height, according to this to all
The hair of extraction measures corresponding water droplet height.
S403: the average value of the water droplet height of all hairs extracted is sought as average water droplet height.
Similarly, for the hair extracted from the hair products sample in step S30, measure each hair is on tenterhooks height simultaneously
Being averaged of seeking height of being on tenterhooks can be used to substitute average water droplet height.
Such as Fig. 5, for measuring the water droplet height of hair, piece hair 1 of haphazard selection, clamps hair 1 from hair products
Both ends make it in drops, the distance between the crosspoint of drops hair upper end and bottom end point h1 are defined as water droplet height,
Water droplet height embodies the pliability of the hair 1, and water droplet height is higher, indicates that hair is more soft.
Such as Fig. 6, for the height of being on tenterhooks of measurement hair, piece hair 2 of haphazard selection, clamps hair 1 from hair products
Both ends make it in being on tenterhooks shape, the distance between bottom end point of the crosspoint of shape hair upper end of being on tenterhooks and bending section h2 is defined as hanging
Heart height, height of being on tenterhooks embody the pliability of the hair 2, and height of being on tenterhooks is higher, indicate that hair is more soft.
S50: height of according to topknot line density, maximum resistance value, mean resistance value and average water droplet height or being averagely on tenterhooks
Degree, using hair products flexibility model obtain the hair products sample hair comb drag and/or submissive coefficient.
The resistance that standard comb insertion hair products topknot is subject to along its at the uniform velocity moving process is related with topknot line density, and
The resistance being subject to is in variation, so the hair products flexibility model that the embodiment of the present invention proposes includes hair comb drag mould
Type, and hair comb drag model includes maximum hair comb drag model and average hair comb drag model.
Maximum hair comb drag model are as follows:
(1)
Wherein,For maximum hair comb drag,Hair products topknot is inserted into for standard comb to be at the uniform velocity moved through along it
The maximum resistance value being subject in journey,For topknot line density.
The topknot line density of hair products topknotCentainly, maximum resistance valueIt is smaller, then hair comb dragMore
It is small, indicate that the hair products topknot smoothness is better.
Average hair comb drag model are as follows:
(2)
Wherein,For average hair comb drag,Hair products topknot is inserted into along its at the uniform velocity moving process for standard comb
The mean resistance value being subject to,For topknot line density.
The topknot line density of hair products topknotCentainly, mean resistance valueIt is smaller, then average hair comb dragMore
It is small, indicate that the hair products topknot smoothness is better.
The maximum hair comb drag obtained is calculated by maximum hair comb drag modelFlexibility is carried out to hair products
Evaluation is very reliable, as long as maximum hair comb dragNo more than a certain threshold value, that is, show the smooth degree symbol of entire hair products
It closes and requires.Average hair comb dragCan then overall merit be carried out to the smooth degree of entire hair products.
Then, since the flexibility of hair products includes softness and smooth degree, and water droplet height or height body of being on tenterhooks
The softness of existing hair products, topknot drag embody the smooth degree of hair products, are based on this, the hair that the embodiment of the present invention proposes
Product flexibility model further includes submissive Modulus Model, and submissive Modulus Model includes minimum submissive Modulus Model and average submissive
Modulus Model, minimum submissive Modulus Model and average submissive Modulus Model can be used for the softness of overall merit hair products and suitable
Slippage degree.
Minimum submissive Modulus Model are as follows:
(3)
Wherein,For minimum submissive coefficient, h is to more in the topknot of hair products
The average water droplet height that hair is tested.Water droplet height is certain, and maximum hair comb drag is smaller, and minimum is submissive
Coefficient is bigger, indicates that the locally compliant property of topknot is good.
Average submissive Modulus Model are as follows:
(4)
Wherein, C is average submissive coefficient.Water droplet height is certain, and average hair comb drag is smaller, and average submissive coefficient is got over
Greatly, indicate that the flexibility of topknot is good.
Maximum hair comb drag model, average hair comb drag model, minimum submissive Modulus Model and average submissive coefficient
The result that any one model in model is sought can evaluate the flexibility of hair products, it is preferred to use what four models were sought
As a result the flexibility of hair products is evaluated jointly, so that evaluation comparison is comprehensive, objective reliable.
Specifically, seeking maximum hair comb drag, average hair comb drag, minimum submissive coefficient and average submissive coefficient
When, the result that step S20 and step S30 is obtained substitutes into formula (1) and formula (2), calculates separately maximum hair comb drag peace
Equal hair comb drag, then by maximum hair comb drag, average hair comb drag and step the S40 result obtained substitute into formula (3) and
In formula (4), minimum submissive coefficient and average submissive coefficient are calculated separately.
Relational language is defined as follows in the embodiment of the present invention:
The flexibility of hair products: the hair products of known length and quality, soft and smooth degree under prescribed conditions.
Hair comb drag (retardant force of hair comb): unit line density hair products sample is in regulation item
The force value for preventing standard hair comb from measuring when at the uniform velocity moving down under part, for indicating the smooth degree of topknot.
Submissive coefficient (compliance ratio): indicating the flexibility index of topknot, is hair water droplet height or is on tenterhooks
The ratio between height and hair comb drag.
Water droplet height (drip height): it indicates the softness index of hair, long hair is specified to curve upper end after drops
Crosspoint and the distance between the bottom end point of bending section.
Be on tenterhooks height (center height): indicate the softness index of hair, specify long hair curve be on tenterhooks shape after on
The distance between the crosspoint at end and the bottom end point of bending section.
Maximum hair comb drag, average hair comb drag, minimum submissive coefficient and average submissive coefficient may be used to comment
The flexibility of valence hair products.Minimum submissive coefficient and average submissive coefficient directly reflect the flexibility of hair products, and submissive coefficient is big
Indicate that softness and the smooth degree of hair products are all fine；Maximum hair comb drag and average hair comb drag then reflect hair system
The smooth degree of product, the small smooth degree for indicating hair products of hair comb drag are good.
With this detection method, to same detection sample, in same laboratory, same operator, same equipment and in short-term
Between be spaced under conditions of 2 single tests being completed, the topknot flexibility index height of acquisition is close.With this detection side
Method, for same wholesale product, the list completed under conditions of different experiments room, different operation person and different equipment
The topknot flexibility index height of secondary test, acquisition is close.
Hair products flexibility detection method provided in an embodiment of the present invention based on dynamometry, by extracting hair products examination
Sample tests hair products sample, obtain the topknot line density of hair products sample, standard comb along hair products sample at the uniform velocity under
The average water droplet height of maximum resistance value and average Resistance Value and more hairs in hair products sample during shifting, then benefit
Maximum hair comb drag, average hair comb drag, minimum submissive coefficient and average submissive system are sought with hair products flexibility model
Number, using the flexibility of these metrics evaluation hair products, good reliability, precision are high, and evaluation result is accurate.
The present invention is described in detail above in conjunction with drawings and examples, still, those of skill in the art
Member is it is understood that without departing from the purpose of the present invention, can also carry out each design parameter in above-described embodiment
Change, forms multiple specific embodiments, is common variation range of the invention, is no longer described in detail one by one herein.
Claims (6)
1. a kind of hair products flexibility detection method based on dynamometry, which comprises the following steps:
(1) hair products sample to be measured is extracted, damping is carried out to the hair products sample；
(2) the topknot line density of gained hair products sample is walked in detection；
(3) maximum resistance value and average Resistance Value of the measurement standard comb in the hair products sample at the uniform velocity folding process；
(4) it measures the average water droplet height of more hairs in the hair products sample or height of being averagely on tenterhooks, specifically includes:
A. a certain number of hairs are randomly selected from the resulting hair products sample of the step (3), to each hair
It marks at the both ends of fixed length spacing；
B. gained hair is taken respectively, and the both ends cross-fixing that will be marked makes the bending of fixed length pitch portions in drops or is on tenterhooks
Shape, standing measures its water droplet height or height of being on tenterhooks after a certain period of time, i.e., between the minimum point of hair crosspoint to hair bending section
Distance；
C. it is averaged as average water droplet height or height of being averagely on tenterhooks；
(5) it is on tenterhooks according to the topknot line density, maximum resistance value, mean resistance value and average water droplet height or averagely height
Degree, using hair products flexibility model obtain the hair products sample hair comb drag and/or submissive coefficient, the hair products
Flexibility model includes maximum hair comb drag model, minimum submissive Modulus Model, average hair comb drag model and/or average
Submissive Modulus Model,
The maximum hair comb drag model are as follows:
Wherein,For maximum hair comb drag,For the maximum resistance value,For the topknot line density；
The submissive Modulus Model of minimum are as follows:
Wherein,For minimum submissive coefficient, h is the average water droplet height or height of being averagely on tenterhooks；
The average hair comb drag model are as follows:
Wherein,For average hair comb drag,For the mean resistance value；
The average submissive Modulus Model are as follows:
Wherein, C is average submissive coefficient.
2. the hair products flexibility detection method according to claim 1 based on dynamometry, which is characterized in that in the step
Suddenly in (1), the environment of damping is carried out according to normal atmospheric environment as defined in GB/T 6529 to the hair products sample.
3. the hair products flexibility detection method according to claim 1 based on dynamometry, which is characterized in that in the step
Suddenly in (1), the detection sample of several groups certain mass is extracted in hair products to be measured as the hair products sample to be measured.
4. the hair products flexibility detection method according to claim 1 based on dynamometry, which is characterized in that in the step
Suddenly in (2), the method for obtaining the topknot line density of hair products sample to be measured is as follows:
A. the resulting hair products sample of the step (1) is organized into the topknot that one end is neat and entirety is straight；
B. the principal length L of the topknot is measured；
C. it weighs with scale and obtains the quality G of the topknot；
D. the topknot line density is sought.
5. the hair products flexibility detection method according to claim 1 based on dynamometry, which is characterized in that the step
(3) it specifically includes:
A. hair products sample obtained by the step (2) is organized into the hair that one end is neat, the other end naturally droops and entirety is straight
Beam；
B. by the standard comb insertion topknot and along the topknot uniform descent, the standard comb is recorded during decline
The average test Resistance Value and full test Resistance Value being subject to；
C. at least 3 times standard combs are carried out along the test of the topknot uniform descent, record the standard comb each time
The average test Resistance Value and full test Resistance Value being subject to along the topknot uniform descent；
D. to testing the average test Resistance Value averaged of acquisition each time as the mean resistance value, and to every
The full test Resistance Value averaged that primary test obtains is as the maximum resistance value.
6. the hair products flexibility detection method according to claim 1 based on dynamometry, which is characterized in that the standard
Comb is comb that is smooth, not generating electrostatic.
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| JP2526038B2 (en) * | 1986-06-17 | 1996-08-21 | 株式会社資生堂 | Method and apparatus for measuring hair flexibility |
| CN2237224Y (en) * | 1995-06-16 | 1996-10-09 | 北京日用化学研究所 | Measuring instrument for hair combing power |
| GB0023472D0 (en) * | 2000-09-25 | 2000-11-08 | Procter & Gamble | Method,apparatus and system for assessing hair condition |
| DE10130009A1 (en) * | 2001-06-25 | 2003-01-02 | Roschiwal & Partner Electronic | Device and method for determining the smoothness of paper |
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