Background technology
Books and periodicals are a kind of reading matters of widely publishing.In recent years, publisher is for the sales volume of pursuing books and periodicals and win liking of more readers, and that publisher often adopts is pure white, the paper of ultrawhite and high brightness comes the printing and publishing books and periodicals.Many consumers have a hunch that also printing the used paper of books and periodicals gets over Bai Yuehao when choosing books and periodicals." in fact, this is the understanding of a mistake, and blank sheet of paper is not to get over Bai Yuehao." relevant expert represents that paper affects one's power of vision very much in vain easily, and some producers often add fluorescer in a large number in order to pursue paper of whiteness, not only can pollute, and also human body are had injury.At present, national correlation department has entrusted China National Pulp ﹠ Paper Research Institute to set about drafting paper product whiteness standard, and this standard will be set a upper limit to the whiteness of paper product, and the paper product that surpasses the upper limit will be regarded as substandard product.Estimate that this standard will put into effect next year.
It is introduced that for pursuing the whiteness of blank sheet of paper, some producers are a large amount of optical bleaching agents that add in manufacturing process, the result is contaminated environment not only, also human body is damaged.According to the woods doctor of Chengdu City No.1 People's Hospital introduction, after fluorescer is absorbed by the body, can with the combined with protein in the human body, just be difficult to be decomposed out, have only the ferment by liver to decompose, it could be excreted, but this can increase the weight of the burden of liver.And if health has wound, fluorescer also can with the combined with protein of wound, hinder the healing of wound.Simultaneously, fluorescent material can make cell morph, and toxicity is accumulated in liver or other vitals, becomes potential carcinogenic factor.
In addition, whiteness is too high affects one's power of vision." whiteness of blank sheet of paper is too high, also can affect one's power of vision." the auspicious expression of the Executive Vice Secretary-General Jiang Rong of Shanghai City papermaking association, paper white is spent height, and its reflectivity to light will be big more, and the normal person watched attentively after a period of time, will feel the eyes shouting pain, and is uncomfortable.And adolescent student owing to also be in the puberty, if retina is subjected to the stimulation of whiteness for a long time, will produce bigger influence to eyesight.Simultaneously, modern medicine also thinks, the books and periodicals of reading the paper with high whiteness are harmful to the organs of vision of human body, and is especially more obvious under strong sunlight and accent light stimulate.High light causes eye fatigue easily, and of a specified duration will cause the blurring of image, and ophthalmology diseases such as myopia take place, and is more harmful to the teenager; Under the ordinary ray, the eyes that the reverberation that produces from paper also can the intense stimulus user make the reader feel visual fatigue easily, cause the rising of the myopia incidence of disease.Recent years, people have proposed the view of some new pre-myopia preventions, think that vision produces tired color with the reading thing direct relation is arranged, and are green more suitable with yellow.
The patent No. a kind of books of health that have been 95111654 patent disclosure, the reverberation that has proposed " in different visual angle environment, visual capacity is different with degree of fatigue " white book printing paper can suppress the colour vision function, reduce visual capacity; The blank sheet of paper reverberation can cause maximum visual angle fatigue when causing the high-high brightness contrast, this fatigue environment is easy to cause myopia.Advocate to use yellow paper to print student's books for this reason.
The patent No. a kind of health books for taking notes or keeping accounts that have been 03218881.1 patent disclosure have the background color of printing between pattern, literal, form and the books for taking notes or keeping accounts page that has proposed to print on the books for taking notes or keeping accounts page; The spectral wavelength of background color is 510-610nm.Think that background color can eliminate floating light, the vignette of paper surface, thoroughly solve because the reverberation of paper suppresses the colour vision function, reduces visual capacity, cause visual fatigue, the problem that causes myopia, and think in one page or one, can realize color alternately, change eye user's eye-using environment, force ocular nerve constantly to move, impel intraocular ciliary muscle to restore to the original state.
These new books have solved really because the reverberation of white paper suppresses the colour vision function, reduces visual capacity, very easily cause visual fatigue, cause the problem of myopia easily.But some new problems have been brought simultaneously again, because the restriction of paper color, the formation of these colors mainly forms by adding dyestuff on the one hand, thereby papermaking enterprise will increase technology, make system paper cost improve, the books and periodicals cost improves thus, increased the weight of consumer's burden, paper pulp itself is through bleaching on the other hand, as everyone knows, the bleaching process of pulping and paper-making industry is the main source that produces bioxin, Er bioxin is the persistent organochlorine compound of a class, have 30 kinds more than, characteristics with " carcinogenic; teratogenesis; mutagenesis ", long half time, the residence time reaches 10 years, easily, be called as the strongest poisonous substance of toxicity on the earth in the medium-term and long-term accumulation of environment.
Undoubtedly, reading this books and periodicals for a long time and not only can exert an influence to eyesight, and can cause serious threat to environmental protection and health, is " the stealthy killer " of human health.
The utility model content
The purpose of this utility model is to provide a kind of health books and periodicals; print and do not add other dyestuff in the used paper of these books and periodicals and just can make the people form the yellow of preferable eyesight environment; play the purpose of protection eyes, control myopia, and can also avoid environmental protection and health threat problem.
For achieving the above object, the utility model adopts following technical scheme:
A kind of health books and periodicals comprise front cover 1, back cover 5 and the page between the two 4, and wherein, described page 4 is for whiteness is 40~76%, preferred 50~76%, more preferably 60~76% page layer.
According to aforesaid health books and periodicals, wherein, described page 4 is for quantitatively being 40~102g/m
2, be preferably 45~80g/m
2, 47~70g/m more preferably
2The page layer.
According to aforesaid health books and periodicals, wherein, vertical length of described health books and periodicals is 3.75~0.48 with the ratio of horizontal length.
According to aforesaid health books and periodicals, wherein, described page 4 is for starching formed page layer by the mixing of straw pulp and other industrial paper pulp.
According to aforesaid health books and periodicals, wherein, described page 4 is 10-17KMnO for hardness
4Value, average fiber length are that 0.1-2.5mm, tensile index are that 23-57N.m/g, tear index are 3.0-6.0mNm
2/ g, burst index are 2-6kPam
2Formed page layer is starched in the straw pulp of/g and the mixing of other industrial paper pulp.
According to aforesaid health books and periodicals, wherein, described page 4 is 10-17KMnO for hardness
4Value, average fiber length are that 0.1-2.5mm, tensile index are that 23-57N.m/g, tear index are 3.0-6.0mNm
2/ g, burst index are 2-6kPam
2The formed page layer of the straw pulp of/g.
According to aforesaid health books and periodicals, wherein, described page 4 is not for containing the page layer of dyestuff, pigment or colorant.
According to aforesaid health books and periodicals, wherein, described page 4 is preferably 80~99% for opacity is 70~100%, more preferably 85~95% page layer.
According to aforesaid health books and periodicals, wherein, at least one angle, upper and lower two angles of opening page (4) away from each of binding side is provided with projection 2.
According to aforesaid health books and periodicals, it is characterized in that: open all uniform from top to bottom impression 3 that is being provided with of sidepiece of page (4) away from each of binding side.
Books and periodicals described in the utility model comprise but are not limited only to newspaper, periodical, magazine, news publication or book.
Below be detailed description of the present utility model:
At first straw pulp of the present utility model is defined as follows:
Described straw pulp is to comprise the slurry that obtains behind boiling, washing step, perhaps the slurry that obtains through boiling, washing, oxygen delignification step.
Described boiling is the disclosed boiling method commonly used of prior art, and it comprises Ammonium Sulfite Method, soda processes, caustic soda-anthraquinone, sulfate process or alkaline sodium sulfite-anthraquinone.
It is preferably as follows method:
The grass raw material is added in the pot, add cooking liquor again, cooking liquor is warming up to 100-200 ℃, boost to 0.3-0.9MPa, digestion time is 150-250 minute, in the described steaming preparation, wherein the ammonium sulfite consumption is the 5-20% to the over dry material quantity, join the 0-15% that amount of sodium hydroxide is the over dry material quantity, liquor ratio is 1:2-15, and the slurry that obtains obtains straw pulp after shove, washing.
More preferably:
The grass raw material is added in the pot, add cooking liquor again, cooking liquor is warming up to 156-173 ℃, boost to 0.6-0.75MPa, digestion time is 180-220 minute, in the described steaming preparation, wherein the ammonium sulfite consumption is the 9-15% to the over dry material quantity, join the 0-8% that amount of sodium hydroxide is the over dry material quantity, liquor ratio is 1:6-10, and the slurry that obtains obtains straw pulp after shove, washing.
The further oxygen delignification of the slurry that obtains behind the above-mentioned pulp washing obtains the straw pulp that needs.
Described oxygen delignification comprises: the slurry of gained after the boiling or the slurry after the washing are sent in the oxygen delignification reaction tower, and described slurry is 90-100 ℃ in the temperature of reaction tower import department, and pressure is 0.9-1.2MPa; The temperature in exit is 95-105 ℃, and pressure is 0.2-0.6MPa; For in the 2-4% of NaOH to the oven dry stock amount, the addition of oxygen is to carry out 60-90 minutes under the condition of slurry 20-40kg per ton to described oxygen delignification, obtains straw pulp at alkali charge.
The hardness of described straw pulp is 10-17KMnO
4Value, average fiber length is 0.1-2.5mm, and tensile index is 23-57Nm/g, and tear index is 3.0-6.0mNm
2/ g and folding index are 2-6kPam
2/ g.
The whiteness of described straw pulp is 28-50%, is preferably 30-45%, more preferably 25-43%.
Health books and periodicals provided by the utility model comprise front cover 1, back cover 5 and the page between the two 4, and wherein, described page 4 is for whiteness is 40~76%, preferred 50~76%, more preferably 60~76% page layer.
The utility model is arranged to the page layer of low whiteness with page, thereby changes the color of page in the books and periodicals, makes page itself present the yellow that makes eye comfortable, to create the visual environment of safety and comfort, alleviates visual fatigue.According to relevant bibliographical information, pseudo-myopia can be recovered in good visual environment normally voluntarily, and true myopia is no longer deepened.
Described straw pulp comprises a kind of or any combination more than two kinds in wheat straw waste, rice straw, reed, giantreed or the cotton stalk.
The part by weight of straw pulp is 10-100% in the described mixing slurry, is preferably 30-90%, more preferably 40-80%.
Described mixing slurry also contains industrial paper pulp, and described industrial paper pulp comprises one or more any combination of bagasse pulp, wood pulp, cotton pulp, bamboo pulp or secondary stock.
Health books and periodicals provided by the utility model, wherein, described page 4 is 10-17KMnO for hardness
4Value, average fiber length are that 0.1-2.5mm, tensile index are that 23-57N.m/g, tear index are 3.0-6.0mNm
2/ g, burst index are 2-6kPam
2The formed page layer of the straw pulp of/g.
Health books and periodicals of the present utility model are 10-17KMnO by adopting 100% hardness
4Value, average fiber length are that 0.1-2.5mm, tensile index are that 23-57N.m/g, tear index are 3.0-6.0mNm
2/ g, burst index are 2-6kPam
2The formed page layer of the straw pulp of/g is that page can play the purpose that helps environmental protection and health, because straw pulp described in the utility model does not pass through bleaching process, do not contain carcinogens such as bioxin and adsorbable organohalogen compounds, help environmental protection, read this books and periodicals for a long time and can not cause potential harm reader's health.
Health books and periodicals provided by the utility model, wherein said page 4 does not contain the page layer of dyestuff, pigment or colorant.
Health books and periodicals provided by the utility model do not contain any dyestuff, pigment or colorant; main by adopting straw pulp described in the utility model; make the color of page be the Natural color of straw pulp; the dyestuff that therefore need not add any weld or other color just can make page present the yellow that makes eye comfortable, plays the effect of protection eyes.
Dyestuff described in the utility model, pigment or colorant are meant can be to the papermaking auxiliary material of paper colouring.
Health books and periodicals provided by the utility model, wherein, at least one angle, upper and lower two angles of opening page 4 away from each of binding side is provided with projection 2.
When reading books and periodicals, the reader usually finds page in the page turning process, can cross several pages or leaves simultaneously, wants the page or leaf that achieves the goal, need twice of page turning or more than.The utility model designer will be by being provided with projection away from least one angle, upper and lower two angles that each of binding side is opened page, this projection can be felt in manual page turning process significantly, by staff to this protruding perception and touch repeatedly, can make page separately, page or leaf apace achieves the goal.
Health books and periodicals provided by the utility model wherein, are opened all uniform from top to bottom impression 3 that is being provided with of sidepiece of page 4 away from each of binding side.
Above-mentioned impression can be printed the stamp of difform stamp, band pattern or decorative pattern, as circular, square, cleave line or various pattern etc., also can print trade mark, the manufacturer of its pamphlet paper, perhaps out of Memory etc.
The utility model not only can increase the books and periodicals integral aesthetic property, and can also make the reader understand more out of Memory by opening all uniform from top to bottom impression that is provided with of sidepiece of page away from each of binding side.
In the utility model, described books and periodicals comprise but are not limited only to newspaper, periodical, magazine, news publication or book etc.
The beneficial effects of the utility model have following beneficial effect:
(1) books and periodicals of the present utility model need not add other dyestuff, pigment or colorant and just can make the people form the yellow of preferable eyesight environment, play the purpose of protection eyes, control myopia;
(2) page of health books and periodicals of the present utility model presents the Natural color that straw pulp forms, because straw pulp is without crossing bleaching process, thus health threat and the environmental issue of having avoided bioxin etc. to cause;
(4) health books and periodicals of the present utility model do not contain dyestuff, pigment or colorant, and straw pulp also need not be bleached, thereby have reduced manufacturing cost;
(5) being provided with of the utility model health books and periodicals protrusions, impression can make reader's page turning quickly in reading process, increases the books and periodicals overall aesthetics, understands information such as pamphlet paper trade mark, manufacturer better.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
Embodiment 1
A kind of health books and periodicals as shown in Figure 1, comprise front cover 1, back cover 5 and the page between the two 4, and wherein, described page 4 is that 100% hardness is 10-17KMnO
4Value, average fiber length are that 0.1-2.5mm, tensile index are that 23-57N.m/g, tear index are 3.0-6.0mNm
2/ g, burst index are 2-6kPam
2Whiteness 40-76%, preferred 50~76%, more preferably 60~76% page layer that the straw pulp of/g forms, do not contain dyestuff, pigment or colorant, further, described page 4 is 70~100% for opacity, be preferably 80~99%, more preferably 85~95% page layer.Vertical length of described page 4 can be 26cm, and laterally length can be 18cm, and thickness can be 0.4mm.
Embodiment 2
A kind of health books and periodicals as shown in Figure 1, comprise front cover 1, back cover 5 and the page between the two 4, and wherein, described page 4 is starched the page layer of the whiteness 40-76% that forms for the mixing that contains straw pulp described in the utility model.Vertical length of described page 4 can be 26cm, and laterally length can be 18cm, and thickness can be 0.4mm.
At least one angle, upper and lower two angles of opening page 4 away from each of binding side is provided with projection 2, several projectioies preferably are set in the lower right corner, as shown in Figure 2, the reader can touch this significantly in the page turning process like this, by staff to this protruding perception and touch repeatedly, can make page separately, page or leaf apace achieves the goal.
Embodiment 3
A kind of health books and periodicals as shown in Figure 1, comprise front cover 1, back cover 5 and the page between the two 4, and wherein, described page 4 is the ply of paper of the whiteness 40-76% of 100% straw pulp formation described in the utility model, does not contain dyestuff.Need not add other dyestuff like this and just can make the yellow of the preferable eyesight environment of humanoid one-tenth; play the purpose of protection eyes, control myopia; owing to adopt 100% straw pulp, straw pulp described in the utility model need not be bleached in addition, can avoid like this because the problems such as health threat that bleaching brings.Vertical length of described page 4 can be 26cm, and laterally length can be 18cm, and thickness can be 0.4mm.At least one angle, upper and lower two angles of opening page 4 away from each of binding side is provided with projection 2, several projectioies preferably are set on the lower right corner, as shown in Figure 2, the reader can touch this projection significantly in the page turning process like this, by staff to this protruding perception and touch repeatedly, can make page separately, page or leaf apace achieves the goal.
Further, to open all uniform from top to bottom impression 3 that is being provided with of sidepiece of page 4 away from each of binding side, as shown in Figure 3, impression can be printed the stamp of difform stamp, band pattern or decorative pattern, as circular, square, line or various pattern etc. cleave, also can print trade mark, the manufacturer of its pamphlet paper, perhaps out of Memory etc.Like this, not only make the page edge be not easy to tear, also increase the books and periodicals integral aesthetic property, more can make the reader understand more out of Memory.