A kind of fabric dyeing method
Technical field
The present invention relates to technical field of textile printing, a kind of fabric dyeing method of specific design.
Background technology
With expanding economy and the raising of living standards of the people, the functional requirement for textile has been not limited only to full
The demand worn enough, and have higher esthetic requirement to it, and demand it is also proposed to the color of textile, it is necessary to weave
Color pattern and color style with uniqueness.During Industrial Revolution, it is equal that the standardization of restrictive color creates quality
First, therefore perfect sunken manufactured goods color, the living standard of people are greatly enhanced.But produce
Product designer has found consumer for traditional handicraft " it is honest and poor to embrace Piao " thought while the theory of " people-oriented " is followed
Think fondly of more and more substantially, the closure that break color is necessarily dependent upon new color concept and operation technique, sporadic color
With its more free and open, more human nature and natural characteristic superiority, turn into Constraints of Equilibrium color mistake in modern colour research system
In the necessary complement of stiff, stiff performance.
The perceptual experience procedure decomposition that script color is created one integrated mass by sporadic color innovation mode is clear logic
The progressive stage, each issuable sporadic condition or factor have been carried out to decompose explanation, it is indicated that accidental sexual factor
The opportunity of intervention and extent control main points, are mainly manifested in the guiding value of PRACTICE OF DESIGN:To improve sporadic color works
Scientific evaluation index provide reference;Explore to scientific system the possibility of the accidental sexual factor intervention free hair tonic of color;Support
Sporadic color produces creative achievement and the possibility of innovative achievements in different application fields.Sporadic color phenomenon
Form is shaped far away, and its diffusion terminates far away, thus it is open that it, which studies female mark,.In a period in future, from difference
Creation it is female, will emerge in an endless stream with numerous sporadic color works of different creation techniques, it is and various informative.
Sporadic color is imported into weaving face fabric design, simply sporadic Color mode achievement guiding associated application research
One of example.On the one hand, weaving face fabric design belongs to and sporadic color between artistic creation, technical study, industrial design
The application field of color close association.In the multinomial appearance forrns index of evaluation weaving face fabric, color is very crucial.Because
People comprehensively feel the external world by all multiple organs including vision, tactile, the sense of hearing, smell etc., and with vision
For principal mode, wherein vision is also easy to produce reaction sharper, more fast, with more generality to color change again.So
Using limited structure change, reduce plus material and process costs on the premise of, using sporadic Color Scheme as Main way, if
Count out with multi-level color effect, press close to the popular innovation weaving face fabric of popular guiding, be the way with prominent commercial value
Footpath.Another aspect textile and garment enterprise is still the industry that single industry chain (supply chain) is most long, job-creation is most before middle empress dowager.
Conscientiously the technology content and design level of weaving face fabric product are put forward, Promoting Industrial upgrading, improves the whole industry in international trade contacts
In competitiveness, concerning national economy, significant.Weaving face fabric product not only needs, using new material, new technology, more to have
The design theory of novel and unique, difference and innovation can be shown in color, flower pattern and surface texture etc., and played
China's labor advantage, formed high-end individual character textile product most promising approach.
Printed fabrics are researched and developed, and are always the emphasis of weaving face fabric design, skilled, looks are various.During indigo printing fabric is
The outstanding representative of state's Traditional Folk printing and dyeing kind fabric.According to Historical Data Data About, setting something afoot for indigo printing fabric technique is not later than 12nd century of Christian era
Southern Song Dynasty's period, it is prevailing in Ming and Qing Dynasties, the whole country using extensively, have a far reaching influence, spread so far.From the similitude of outward appearance
See, indigo printing fabric is believable from folder figured silk fabrics.Press from both sides Cangnan County, Zhejiang Province of the figured silk fabrics in today and also have retention, production technology purely list
One, survival state is precarious.Indigo printing fabric equally faces the crisis of survival of sternness, and technological innovation is extremely urgent.Blue stamp
Cloth be it is a kind of using stencilling texturing, bite resist printing, indigo dyeing as typical process feature printed article, with uniform ground colour, green grass or young crops
White clearly demarcated contrast effect, careful dense grain pattern and simple graceful style are good at.But for a long time, indigo printing fabric because
Lack strategic structural, color, grain pattern, style is single and is difficult to incorporate the changeable fashion trend of contemporary weaving face fabric;Secondly, Lan Yin
Figured cloth shows slightly coarse and crude color looks, simple original style of one's native land hinders its to lift quality class;Again, manual indigo printing fabric
The batch that technique is printed and dyed by the modern mechanicalization using chemical dye is copied, and higher formation market pushes away in cost taken by themselves price
Wide another obstacle.Therefore, it is so-called to defend tenaciously indigo printing fabric dyestuff, technique, grain pattern, the tradition of material, actually make blue stamp
Cloth increasingly departs from popular market, tends to decline.So the mechanical looks for changing indigo printing fabric have been very urgent.Restore and pass
The processing technology of system, no doubt it is the preservation to traditional dyeing and finishing technology nonmaterial culture;But succession and development, it is not mutually exclusive
Scientific Thinking.It can be seen that in each epoch, there is its mainstream thoughts and innovative idea designed, produced effectively to designing each class
Influence.Only tradition and innovation is reasonably combined, on the premise of indigo printing fabric main styles feature is retained, abandoned
Standardization, progress in industrialization, the recurrence of meaning rhythm by hand is pursued again, conventional art is kept its self hematopoiesis in the present age
Develop vitality.
Traditional fabric printing is typically to be printed and dyed using one side or woven, and technique is more single, and is produced
Product color is more dull, and without alias, added value of product is relatively low, therefore, it is necessary to develop a kind of new fabric printing
Method, to assign fabric more color added values, improve the economic benefit of textile production.
The content of the invention
For above-mentioned technical problem present in prior art, a kind of dyeing of present invention offer is rich in color, stereovision is strong,
Color has the high fabric fabric primary and secondary dyeing method of alias, printed textile added value.
Above-mentioned female to realize, the present invention provides following technical scheme:
A kind of fabric dyeing method, comprises the following steps:
(1) fabric to be contaminated, is first woven, fabric to be contaminated is divided into sub- fabric volume and generatrix material volume, what sub- fabric was rolled up is sub- face
Generatrix material on material, generatrix material volume;Water washing operations are carried out to generatrix material volume, then sub- fabric volume and generatrix material volume passed through respectively
Forming machine carries out tentering and preshrunk stoving process;
(2) while to by step(1)Sub- fabric volume and generatrix material volume after processing are dyed, and sub- fabric is rolled up and generatrix
Material volume is fed into dyeing apparatus by the way that sub- fabric feeding system and generatrix material feeding system are simultaneously parallel respectively, also, from mother
The mother's fabric to be contaminated for unwinding out in fabric volume is located at the top for the son fabric to be contaminated for unwinding out from sub- fabric volume, dyeing dress
Dyeing mechanism in putting is positioned at the top of female fabric to be contaminated;
(3) it is, upper and lower parallel at the same feed the fabric to be contaminated of the mother in dyeing apparatus and son fabric to be contaminated in dyeing apparatus simultaneously quilt
Dyeing, mother's fabric to be contaminated that the dyestuff come out from the dyeing mechanism in dyeing apparatus is first pointed to top are dyed, and mother waits to contaminate
Fabric is saturating by dye, and dyestuff penetration is reached on underlying son fabric to be contaminated through mother's fabric to be contaminated, by mother's fabric to be contaminated
The son fabric to be contaminated that the dyestuff of middle infiltration outflow is pointed to lower section again is dyed;
(4), turn into female dyed shell fabrics and sub- dyed shell fabrics by mother's fabric to be contaminated of dyeing and son fabric to be contaminated simultaneously, mother is contaminated
Color fabric and sub- dyed shell fabrics carry out extrusion process by pressure roller together, squeeze and remove unnecessary dyestuff;
(5), female dyed shell fabrics and sub- dyed shell fabrics are rolled up by female dyed shell fabrics reel system and sub- fabric reel system respectively
Take, female dyed shell fabrics reel system and sub- fabric reel system are respectively and step(2)In generatrix material feeding system and sub- fabric
Feeding system is equipped with;The unwinding to generatrix material is realized in generatrix material feeding system and the mutual cooperation of female dyed shell fabrics reel system
Feed and batch winding, sub- fabric feeding system and the mutual cooperation of sub- dyed shell fabrics reel system and realize that the unwinding to generatrix material is fed
Enter and batch winding;Direct of travel of the sub- fabric with generatrix material in whole dyeing process is always maintained at parallel up and down;
(6), female dyed shell fabrics are soaped before female dyed shell fabrics batch winding by female dyed shell fabrics reel system, removed floating
Color;Soaped using low temperature soaping agent, after handling 20-25min at 55-60 DEG C of temperature, taken out, cleaned, low temperature drying,
Obtain finished product mother's dyed shell fabrics;Sub- dyed shell fabrics directly carry out low temperature drying, package without processing of soaping.
Preferably, the step(1)In the detailed process of tentering process of forming machine be:Wet cloth after open-width is passed through
Forming machine wet cloth tentering, wherein the oven temperature for controlling forming machine is 160~170 DEG C, 40~50m/min of speed of cloth, will
Cloth controls door width as 100%~110% of wet cloth door width before tentering by carrying out tentering after pressure roller;Described preshrunk drying
Detailed process be:The temperature for controlling baking oven in preshrunk dryer is 140~150 DEG C, 30~40m/min of speed of cloth, cloth
Door width be tentering before wet cloth door width, then cloth is dried by the air blower air blast in baking oven.
Preferably, the step(1)In to generatrix material volume carry out water washing operations detailed process be:Control generatrix material and water
Bath raio be 1:11~12, then toward 3.0~4.0g/L of surfactant is added in water, it is warming up to 70~75 DEG C, insulation 40~
Draining after 50min, add water again, it is 1 to control the bath raio of generatrix material base cloth and water:11~12, and with diluted acid by the pH value of cloth cover
Adjust to draining after 6.0~7.0.
Preferably, the step(1)In be woven as it is woven, knitting or nonwovens process.
Preferably, the step(2)The dyeing mechanism of middle dyeing apparatus is spraying dyeing or pressure roller dyeing.
Preferably, generatrix material feeding system, female dyed shell fabrics reel system, sub- fabric feeding system and sub- dyed shell fabrics
Reel system is driven using servomotor.
Preferably, the step(4)In pressure roller on be provided with compression force control device, control to female dyed shell fabrics and son
The pressure that dyed shell fabrics are extruded, the amount for removing unnecessary dyestuff is squeezed to control.
Preferably, the step(5)In technique of soaping be specially:Wherein low temperature soaping agent:Chitosan quaternary ammonium salt 5-
15g/L, organic amine compound 1-5g/L, polybasic carboxylic acid 0.5-2g/L, sodium hypophosphite 0.1-1g/L, bleeding agent 2-6 g/L,
Surplus is water.
Preferably, the step(3)In dyestuff in add dyestuff quality 5-25% reactive dye, the ten of 10-11wt%
Diamines APEO, 2-3wt% titanium dioxide, 7-8wt% ethyl oxalate and 3-5wt% phenylpropanol, 1-3wt%
The water profit agent of glauber salt, 2-15wt% thickener, 10-11wt% dispersant, 1-2wt% defoamer, 1-2wt%.
Beneficial effects of the present invention:
The fabric printing method of the present invention, while the sub- fabric volume of parallel feeding coloring system and generatrix material volume up and down are contaminated
Color, sub- fabric volume and generatrix material volume by sub- fabric feeding system and generatrix material feeding system while parallel are fed into dye respectively
In color device, also, the mother's fabric to be contaminated for unwinding out from generatrix material volume is located at the son for unwinding out from sub- fabric volume and treated
The top of fabric is contaminated, the dyeing mechanism in dyeing apparatus is parallel up and down while feed to dye and fill positioned at the top of female fabric contaminate
The mother's fabric to be contaminated and son fabric to be contaminated put are in dyeing apparatus while are colored, and are come out from the dyeing mechanism in dyeing apparatus
Dyestuff be first pointed to mother's fabric contaminate of top and dyed, mother's fabric contaminate is contaminated thoroughly, and dyestuff penetration is treated through mother
Contaminate fabric to reach on underlying son fabric to be contaminated, be pointed to the son of lower section again by the dyestuff that outflow is permeated in female fabric to be contaminated
Fabric to be contaminated is dyed.Compared with traditional dyeing and printing process, there is advantages below:First, fed simultaneously using two shell fabrics
Dyed, dyestuff contaminates the generatrix material positioned at upper strata first, then oozes out to flow on the sub- fabric of lower floor and dyed, female
Fabric is consistent with the color style of sub- fabric, is only otherwise varied in the depth of color both it, i.e. through hyperchromatic two
Fabric can arrange in pairs or groups use, during as ready-made clothes fabric, can improve stereovision and the ladder sense of ready-made clothes color;As decorative cover
Material has unique aesthetic effect in use, can equally cause ornament to have obviously ladder and stereovision so that
Ornament has more aesthetic feeling, improves the color added value of fabric.Second, disposably two fabrics are dyed, the two is
The difference in the depth, but it is identical on color style, and dyestuff can be so saved, promote the abundant of dyestuff
Use, avoid wasting.3rd, two fabrics are printed and dyed successively, also improve the production efficiency of printing and dyeing, time processing can
To produce the fabric of two kinds of color patterns, efficiency high, and also it is more easy with the Color control of batch products, therefore, for
Need to print and dye the depth different fabric when, if just separated print and dye twice, error will necessarily occur when allocating dyestuff, cause two
The problem of not only deep mixed during secondary printing and dyeing, and tone is also possible to error occur, and the present invention is not in then this, one
Secondary to complete deep mixed printing and dyeing, the two is that the depth is different, and style is consistent.4th, because female dyed shell fabrics contact first
Dyestuff, dyeing is deeper, will necessarily there are many loose colours thereon, therefore, soap be added to female dyed shell fabrics in subsequent handling
Process is washed, removes loose colour thereon.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
A kind of fabric dyeing method, comprises the following steps:
(1) fabric to be contaminated, is first woven, fabric to be contaminated is divided into sub- fabric volume and generatrix material volume, what sub- fabric was rolled up is sub- face
Generatrix material on material, generatrix material volume;Water washing operations are carried out to generatrix material volume, then sub- fabric volume and generatrix material volume passed through respectively
Forming machine carries out tentering and preshrunk stoving process;
(2) while to by step(1)Sub- fabric volume and generatrix material volume after processing are dyed, and sub- fabric is rolled up and generatrix
Material volume is fed into dyeing apparatus by the way that sub- fabric feeding system and generatrix material feeding system are simultaneously parallel respectively, also, from mother
The mother's fabric to be contaminated for unwinding out in fabric volume is located at the top for the son fabric to be contaminated for unwinding out from sub- fabric volume, dyeing dress
Dyeing mechanism in putting is positioned at the top of female fabric to be contaminated;
(3) it is, upper and lower parallel at the same feed the fabric to be contaminated of the mother in dyeing apparatus and son fabric to be contaminated in dyeing apparatus simultaneously quilt
Dyeing, mother's fabric to be contaminated that the dyestuff come out from the dyeing mechanism in dyeing apparatus is first pointed to top are dyed, and mother waits to contaminate
Fabric is saturating by dye, and dyestuff penetration is reached on underlying son fabric to be contaminated through mother's fabric to be contaminated, by mother's fabric to be contaminated
The son fabric to be contaminated that the dyestuff of middle infiltration outflow is pointed to lower section again is dyed;
(4), turn into female dyed shell fabrics and sub- dyed shell fabrics by mother's fabric to be contaminated of dyeing and son fabric to be contaminated simultaneously, mother is contaminated
Color fabric and sub- dyed shell fabrics carry out extrusion process by pressure roller together, squeeze and remove unnecessary dyestuff;
(5), female dyed shell fabrics and sub- dyed shell fabrics are rolled up by female dyed shell fabrics reel system and sub- fabric reel system respectively
Take, female dyed shell fabrics reel system and sub- fabric reel system are respectively and step(2)In generatrix material feeding system and sub- fabric
Feeding system is equipped with;The unwinding to generatrix material is realized in generatrix material feeding system and the mutual cooperation of female dyed shell fabrics reel system
Feed and batch winding, sub- fabric feeding system and the mutual cooperation of sub- dyed shell fabrics reel system and realize that the unwinding to generatrix material is fed
Enter and batch winding;Direct of travel of the sub- fabric with generatrix material in whole dyeing process is always maintained at parallel up and down;
(6), female dyed shell fabrics are soaped before female dyed shell fabrics batch winding by female dyed shell fabrics reel system, removed floating
Color;Soaped using low temperature soaping agent, after handling 20min at 55 DEG C of temperature, take out, cleaned, low temperature drying, obtain into
Product mother's dyed shell fabrics;Sub- dyed shell fabrics directly carry out low temperature drying, package without processing of soaping.
Processing early stage is carried out to fabric first, wherein, step(1)In the detailed process of tentering process of forming machine be:
By the wet cloth after open-width by forming machine wet cloth tentering, wherein the oven temperature for controlling forming machine is 160 DEG C, the speed of cloth
40m/min, by cloth by carrying out tentering after pressure roller, door width is controlled as 100% of wet cloth door width before tentering;Described preshrunk is dried
Dry detailed process is:The temperature for controlling baking oven in preshrunk dryer is 140 DEG C, the speed 30m/min of cloth, the door width of cloth
For the wet cloth door width before tentering, then cloth is dried by the air blower air blast in baking oven.
Step(1)In to generatrix material volume carry out water washing operations detailed process be:It is 1 to control the bath raio of generatrix material and water:
11, then toward addition surfactant 3.0g/L in water, 70 DEG C are warming up to, is incubated draining after 40min, again plus water, control are female
The bath raio of fabric fabric and water is 1:11, and adjusted the pH value of cloth cover to draining after 6.0 with diluted acid.
For the category of fabric, there is no particular restriction by the present invention, step(1)In be woven as woven, knitting or non-knit
Make technique.
For the technology type of printing and dyeing, also there is no particular restriction by the present invention, step(2)The dyeing mechanism of middle dyeing apparatus is
Spraying dyeing or pressure roller dyeing.
In order to ensure the feeding of sub- fabric and generatrix material and batch with independence, generatrix material feeding system, female dyeing face
Material volume system for winding, sub- fabric feeding system and sub- dyed shell fabrics reel system are driven using servomotor.
In order to control the tension force and printing and dyeing depth in whole process, step(4)In pressure roller on be provided with thrust
Control device, the pressure extruded female dyed shell fabrics and sub- dyed shell fabrics is controlled, the amount for removing unnecessary dyestuff is squeezed to control.
Step(5)In technique of soaping be specially:Wherein low temperature soaping agent:Chitosan quaternary ammonium salt 5g/L, organic amine
Compound 1g/L, polybasic carboxylic acid 0.5g/L, sodium hypophosphite 0.1g/L, bleeding agent 2g/L, surplus are water.
Step(3)In dyestuff in add the reactive dye of dyestuff quality 5%, 10wt% lauryl amine APEO,
2wt% titanium dioxide, the phenylpropanol of 7wt% ethyl oxalate and 3wt%, 1wt% glauber salt, 2wt% thickener,
The water profit agent of 10wt% dispersant, 1wt% defoamer, 1wt%.
Embodiment 2
A kind of fabric dyeing method, comprises the following steps:
(1) fabric to be contaminated, is first woven, fabric to be contaminated is divided into sub- fabric volume and generatrix material volume, what sub- fabric was rolled up is sub- face
Generatrix material on material, generatrix material volume;Water washing operations are carried out to generatrix material volume, then sub- fabric volume and generatrix material volume passed through respectively
Forming machine carries out tentering and preshrunk stoving process;
(2) while to by step(1)Sub- fabric volume and generatrix material volume after processing are dyed, and sub- fabric is rolled up and generatrix
Material volume is fed into dyeing apparatus by the way that sub- fabric feeding system and generatrix material feeding system are simultaneously parallel respectively, also, from mother
The mother's fabric to be contaminated for unwinding out in fabric volume is located at the top for the son fabric to be contaminated for unwinding out from sub- fabric volume, dyeing dress
Dyeing mechanism in putting is positioned at the top of female fabric to be contaminated;
(3) it is, upper and lower parallel at the same feed the fabric to be contaminated of the mother in dyeing apparatus and son fabric to be contaminated in dyeing apparatus simultaneously quilt
Dyeing, mother's fabric to be contaminated that the dyestuff come out from the dyeing mechanism in dyeing apparatus is first pointed to top are dyed, and mother waits to contaminate
Fabric is saturating by dye, and dyestuff penetration is reached on underlying son fabric to be contaminated through mother's fabric to be contaminated, by mother's fabric to be contaminated
The son fabric to be contaminated that the dyestuff of middle infiltration outflow is pointed to lower section again is dyed;
(4), turn into female dyed shell fabrics and sub- dyed shell fabrics by mother's fabric to be contaminated of dyeing and son fabric to be contaminated simultaneously, mother is contaminated
Color fabric and sub- dyed shell fabrics carry out extrusion process by pressure roller together, squeeze and remove unnecessary dyestuff;
(5), female dyed shell fabrics and sub- dyed shell fabrics are rolled up by female dyed shell fabrics reel system and sub- fabric reel system respectively
Take, female dyed shell fabrics reel system and sub- fabric reel system are respectively and step(2)In generatrix material feeding system and sub- fabric
Feeding system is equipped with;The unwinding to generatrix material is realized in generatrix material feeding system and the mutual cooperation of female dyed shell fabrics reel system
Feed and batch winding, sub- fabric feeding system and the mutual cooperation of sub- dyed shell fabrics reel system and realize that the unwinding to generatrix material is fed
Enter and batch winding;Direct of travel of the sub- fabric with generatrix material in whole dyeing process is always maintained at parallel up and down;
(6), female dyed shell fabrics are soaped before female dyed shell fabrics batch winding by female dyed shell fabrics reel system, removed floating
Color;Soaped using low temperature soaping agent, after handling 25min under temperature 60 C, take out, cleaned, low temperature drying, obtain into
Product mother's dyed shell fabrics;Sub- dyed shell fabrics directly carry out low temperature drying, package without processing of soaping.
Processing early stage is carried out to fabric first, wherein, step(1)In the detailed process of tentering process of forming machine be:
By the wet cloth after open-width by forming machine wet cloth tentering, wherein the oven temperature for controlling forming machine is 170 DEG C, the speed of cloth
50m/min, by cloth by carrying out tentering after pressure roller, door width is controlled as 110% of wet cloth door width before tentering;Described preshrunk is dried
Dry detailed process is:The temperature for controlling baking oven in preshrunk dryer is 150 DEG C, the speed 40m/min of cloth, the door width of cloth
For the wet cloth door width before tentering, then cloth is dried by the air blower air blast in baking oven.
Step(1)In to generatrix material volume carry out water washing operations detailed process be:It is 1 to control the bath raio of generatrix material and water:
12, then toward addition surfactant 4.0g/L in water, 75 DEG C are warming up to, is incubated draining after 50min, again plus water, control are female
The bath raio of fabric fabric and water is 1:12, and adjusted the pH value of cloth cover to draining after 7.0 with diluted acid.
For the category of fabric, there is no particular restriction by the present invention, step(1)In be woven as woven, knitting or non-knit
Make technique.
For the technology type of printing and dyeing, also there is no particular restriction by the present invention, step(2)The dyeing mechanism of middle dyeing apparatus is
Spraying dyeing or pressure roller dyeing.
In order to ensure the feeding of sub- fabric and generatrix material and batch with independence, generatrix material feeding system, female dyeing face
Material volume system for winding, sub- fabric feeding system and sub- dyed shell fabrics reel system are driven using servomotor.
In order to control the tension force and printing and dyeing depth in whole process, step(4)In pressure roller on be provided with thrust
Control device, the pressure extruded female dyed shell fabrics and sub- dyed shell fabrics is controlled, the amount for removing unnecessary dyestuff is squeezed to control.
Step(5)In technique of soaping be specially:Wherein low temperature soaping agent:Chitosan quaternary ammonium salt 5-15g/L, organic amine
Compound 5g/L, polybasic carboxylic acid 2g/L, sodium hypophosphite 1g/L, the g/L of bleeding agent 6, surplus is water.
Step(3)In dyestuff in add the reactive dye of dyestuff quality 25%, 11wt% lauryl amine APEO,
3wt% titanium dioxide, the phenylpropanol of 8wt% ethyl oxalate and 5wt%, 3wt% glauber salt, 15wt% thickener,
The water profit agent of 11wt% dispersant, 2wt% defoamer, 2wt%.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention
Matter and scope.